18-Mbit (512K x 36/1M x 18) Pipelined DCD Sync SRAM
Features
• Supports bus operation up to 250 MHz
• Available speed grades are 250, 200, and 167 MHz
• Registered inputs and outputs for pipelined operation
• Optimal for performance (Double-Cycle deselect)
• Depth expansion without wait state
•2.5V +
• Fast clock-to-output times, 2.6 ns (for 250 MHz device)
• Provides high-performance 3-1-1-1 access rate
• User selectable burst counter supporting Intel
• Separate processor and controller address strobes
• Synchronous self timed writes
• Asynchronous output enable
• CY7C1386DV25/CY7C1387DV25 available in
• IEEE 1149.1 JTAG-Compatible Boundary Scan
• ZZ sleep mode option
5% power supply (VDD)
®
Pentium®
interleaved or linear burst sequences
JEDEC-standard Pb-free 100-pin TQFP, Pb-free and non
Pb-free 165-ball FBGA package.
CY7C1386FV25/CY7C1387FV25 available in Pb-free and
non Pb-free 119-ball BGA package
Functional Description
[1]
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 SRAM integrates 512K x 36 and 1M x 18
SRAM cells with advanced synchronous peripheral circuitry
and a two-bit counter for internal burst operation. All
synchronous inputs are gated by registers controlled by a
positive edge triggered clock input (CLK). The synchronous
inputs include all addresses, all data inputs, address-pipelining
chip enable (CE
[2]
), burst control inputs (ADSC, ADSP, and ADV), write
CE
3
enables (BW
Asynchronous inputs include the output enable (OE
), depth expansion chip enables (CE2 and
1
, and BWE), and global write (GW).
X
) and the
ZZ pin.
Addresses and chip enables are registered at rising edge of
clock when either address strobe processor (ADSP
address strobe controller (ADSC
) are active. Subsequent
) or
burst addresses can be internally generated as controlled by
the advance pin (ADV).
Address, data inputs, and write controls are registered on-chip
to initiate a self timed write cycle.This part supports byte write
operations (see Pin Definitions on page 6 and Truth Table
5, 6, 7, 8, 9]
on page 9 for further details). Write cycles can be
one to four bytes wide as controlled by the byte write control
inputs. GW
active
causes all bytes to be written.
LOW
This
device incorporates an additional pipelined enable register
which delays turning off the output buffers an additional cycle
when a deselect is executed.This feature allows depth
expansion without penalizing system performance.
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 operates from a +2.5V power supply. All
inputs and outputs are JEDEC-standard and
JESD8-5-compatible.
[4,
Selection Guide
Maximum Access Time2.63.03.4ns
Maximum Operating Current350300275mA
Maximum CMOS Standby Current707070mA
Notes
1. For best practices or recommendations, please refer to the Cypress application note AN1064, SRAM System Design Guidelines on www.cypress.com.
Address inputs used to select one of the address locations. Sampled at the
rising edge of the CLK if ADSP
are sampled active. A1: A0 are fed to the two-bit counter.
or ADSC is active LOW, and CE1, CE2, and CE
.
Byte write select inputs, active LOW. Qualified with BWE to conduct byte writes
to the SRAM. Sampled on the rising edge of CLK.
Global write enable input, active LOW. When asserted LOW on the rising edge
of CLK, a global write is conducted (all bytes are written, regardless of the values
on BW
and BWE).
X
Byte write enable input, active LOW. Sampled on the rising edge of CLK. This
signal must be asserted LOW to conduct a byte write.
Clock input. Used to capture all synchronous inputs to the device. Also used to
increment the burst counter when ADV
is asserted LOW, during a burst operation.
Chip enable 1 input, active LOW. Sampled on the rising edge of CLK. Used in
conjunction with CE
if CE
is HIGH. CE1 is sampled only when a new external address is loaded.
1
and CE
2
[2]
to select or deselect the device. ADSP is ignored
3
Chip enable 2 input, active HIGH. Sampled on the rising edge of CLK. Used in
conjunction with CE
and CE
1
[2]
to select or deselect the device. CE2 is sampled
3
only when a new external address is loaded.
Chip enable 3 input, active LOW. Sampled on the rising edge of CLK. Used in
conjunction with CE
BGA. Where referenced, CE
and CE2 to select or deselect the device. Not connected for
1
[2]
is assumed active throughout this document for
3
BGA. CE3 is sampled only when a new external address is loaded.
Output enable, asynchronous input, active LOW. Controls the direction of the
IO pins. When LOW, the IO pins behave as outputs. When deasserted HIGH, DQ
pins are tri-stated, and act as input data pins. OE
is masked during the first clock
of a read cycle when emerging from a deselected state.
Advance input signal, sampled on the rising edge of CLK, active LOW. When
asserted, it automatically increments the address in a burst cycle.
Address strobe from processor, sampled on the rising edge of CLK, active
LOW. When asserted LOW, addresses presented to the device are captured in the
address registers. A1: A0 are also loaded into the burst counter. When ADSP
ADSC
are both asserted, only ADSP is recognized. ASDP is ignored when CE1 is
deasserted HIGH.
Address strobe from controller, sampled on the rising edge of CLK, active
LOW. When asserted LOW, addresses presented to the device are captured in the
address registers. A1: A0 are also loaded into the burst counter. When ADSP
ADSC
are both asserted, only ADSP is recognized.
ZZ sleep input, active HIGH. When asserted HIGH places the device in a
non-time-critical sleep condition with data integrity preserved. For normal operation,
this pin has to be LOW or left floating. ZZ pin has an internal pull down.
Bidirectional data IO lines. As inputs, they feed into an on-chip data register that
is triggered by the rising edge of CLK. As outputs, they deliver the data contained
in the memory location specified by the addresses presented during the previous
clock rise of the read cycle. The direction of the pins is controlled by OE
. When OE
is asserted LOW, the pins behave as outputs. When HIGH, DQs and DQPX are
placed in a tri-state condition.
NC–No Connects. Not internally connected to the die
NC/(36M, 72M, 144M,
288M, 576M, 1G)
GroundGround for the core of the device.
IO GroundGround for the IO circuitry.
IO Power Supply Power supply for the IO circuitry.
Selects burst order. When tied to GND selects linear burst sequence. When tied
Stat ic
to VDD or left floating selects interleaved burst sequence. This is a strap pin and
must remain static during device operation. Mode pin has an internal pull up.
Serial data-out to the JTAG circuit. Delivers data on the negative edge of TCK.
Synchronous
If the JTAG feature is not used, this pin must be disconnected. This pin is not
available on TQFP packages.
Serial data-in to the JTAG circuit. Sampled on the rising edge of TCK. If the JTAG
Synchronous
feature is not used, this pin can be disconnected or connected to V
not available on TQFP packages.
Serial data-in to the JTAG circuit. Sampled on the rising edge of TCK. If the JTAG
Synchronous
feature is not used, this pin can be disconnected or connected to V
not available on TQFP packages.
Clock input to the JTAG circuitry. If the JTAG feature is not used, this pin must
Clock
be connected to V
. This pin is not available on TQFP packages.
SS
–These pins are not connected. They will be used for expansion to the 36M, 72M,
144M, 288M, 576M, and 1G densities.
. This pin is
DD
. This pin is
DD
Functional Overview
All synchronous inputs pass through input registers controlled
by the rising edge of the clock. All data outputs pass through
output registers controlled by the rising edge of the clock.
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 supports secondary cache in systems using
either a linear or interleaved burst sequence. The interleaved
burst order supports Pentium
linear burst sequence is suited for processors that use a linear
burst sequence. The burst order is user selectable, and is
determined by sampling the MODE input. Accesses can
initiated with either the processor address strobe (ADSP)
the controller address strobe (ADSC
through the burst sequence is controlled by the ADV
two-bit on-chip wraparound burst counter captures the first
address in a burst sequence and automatically increments the
address for the rest of the burst access.
Byte write operations are qualified with the byte write enable
) and byte write select (BWX) inputs. A global write
(BWE
enable (GW
) overrides all byte write inputs and writes data to
all four bytes. All writes are simplified with on-chip
synchronous self timed write circuitry.
Synchronous chip selects CE
asynchronous output enable (OE) provide for easy bank
selection and
output tri-state control.
is HIGH.
®
and i486™ processors. The
). Address advancement
input. A
, CE2, CE
1
ADSP
[2]
and an
3
is ignored if CE
be
Single Read Accesses
This access is initiated when the following conditions are
satisfied at clock rise: (1) ADSP
or ADSC is asserted LOW, (2)
chip selects are all asserted active, and (3) the write signals
(GW, BWE) are all deasserted HIGH. ADSP is ignored if CE
is HIGH. The address presented to the address inputs is
stored into the address advancement logic and the address
register while being presented to the memory core. The
corresponding data is allowed to propagate to the input of the
output registers. At the rising edge of the next clock the data
is allowed to propagate through the output register and onto
the data bus within t
occurs when the SRAM is emerging from a deselected state
or
if OE is active LOW. The only exception
CO
to a selected state, its outputs are always tri-stated during the
first cycle of the access. After the first cycle of the access, the
outputs are controlled by the OE
signal. Consecutive single
read cycles are supported.
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 is a double-cycle deselect part. Once the
SRAM is deselected at clock rise by the chip select and either
or ADSC signals, its output will tri-state immediately
ADSP
after the next clock rise.
Single Write Accesses Initiated by ADSP
This access is initiated when both of the following conditions
are satisfied at clock rise: (1) ADSP
1
chip select is asserted active. The address presented is
is asserted LOW, and (2)
loaded into the address register and the address
advancement logic while being delivered to the memory core.
The write signals (GW
ignored during this first cycle.
triggered write accesses require two clock cycles to
ADSP
, BWE, and
) and ADV inputs are
BW
X
complete. If GW is asserted LOW on the second clock rise, the
data presented to the DQ
corresponding address location in the memory core. If GW
inputs is written into the
x
is
HIGH, then the write operation is controlled by BWE and BW
signals.
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 provides byte write capability that is
described in the write cycle description table. Asserting the
byte write enable input (BWE
) with the selected byte write
input will selectively write to only the desired bytes. Bytes not
selected during a byte write operation will remain unaltered. A
synchronous self timed write mechanism has been provided
to simplify the write operations.
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 is a common IO device, the output enable
) must be deasserted HIGH before presenting data to the
(OE
inputs. Doing so will tri-state the output drivers. As a safety
DQ
precaution, DQ are automatically tri-stated whenever a write
cycle is detected, regardless of the state of OE.
Single Write Accesses Initiated by ADSC
ADSC write accesses are initiated when the following
conditions are satisfied: (1) ADSC
is asserted LOW, (2) ADSP
is deasserted HIGH, (3) chip select is asserted active, and (4)
the appropriate combination of the write inputs (GW, BWE,
and
byte(s). ADSC triggered write accesses require a single clock
) are asserted active to conduct a write to the desired
BW
X
cycle to complete. The address presented is loaded into the
address register and the address advancement logic while
being delivered to the memory core. The ADV
input is ignored
during this cycle. If a global write is conducted, the data
presented to the DQ
is written into the corresponding address
X
location in the memory core. If a byte write is conducted, only
the selected bytes are written. Bytes not selected during a byte
write operation will remain unaltered. A synchronous self
timed write mechanism has been provided to simplify the write
operations.
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 is a common IO device, the output enable
) must be deasserted HIGH before presenting data to the
(OE
inputs. Doing so will tri-state the output drivers. As a
DQ
X
safety precaution, DQ
are automatically tri-stated whenever
X
a write cycle is detected, regardless of the state of OE.
Burst Sequences
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 provides a two-bit wraparound counter, fed
by A
, that implements either an interleaved or linear burst
[1:0]
sequence. The interleaved burst sequence is designed
specifically to support Intel Pentium applications. The linear
burst sequence is designed to support processors that follow
X
a linear burst sequence. The burst sequence is user selectable
through the MODE input.
Asserting ADV
LOW at clock rise will automatically increment
the burst counter to the next address in the burst sequence.
Both read and write burst operations are supported.
Sleep Mode
The ZZ input pin is an asynchronous input. Asserting ZZ
places the SRAM in a power conservation sleep mode. Two
clock cycles are required to enter into or exit from this sleep
mode. While in this mode, data integrity is guaranteed.
Accesses pending when entering the sleep mode are not
considered valid nor is the completion of the operation
guaranteed. The device must be deselected prior to entering
the sleep mode. CE
for the duration of t
s, ADSP, and ADSC must remain inactive
after the ZZ input returns LOW
ZZREC
Interleaved Burst Address Table
(MODE = Floating or VDD)
ZZ Active to sleep currentThis parameter is sampled2t
CYC
CYC
ZZ Inactive to exit sleep currentThis parameter is sampled0ns
[4, 5, 6, 7, 8, 9]
ns
ns
ns
Notes
4. X = Don't Care, H = Logic HIGH, L = Logic LOW.
5. WRITE
6. The DQ pins are controlled by the current cycle and the
7. CE
8. The SRAM always initiates a read cycle when ADSP
9. OE
= L when any one or more byte write enable signals and BWE = L or GW = L. WRITE = H when all byte write enable signals, BWE, GW = H.
, CE2, and CE3 are available only in the TQFP package. BGA package has only 2 chip selects CE1 and CE2.
1
the ADSP
care for the remainder of the write cycle.
inactive or when the device is deselected, and all data bits behave as output when OE is active (LOW).
or with the assertion of ADSC. As a result, OE must be driven HIGH prior to the start of the write cycle to allow the outputs to tri-state. OE is a don't
is asynchronous and is not sampled with the clock rise. It is masked internally during write cycles. During a read cycle all data bits are tri-state when OE is
Document Number: 38-05548 Rev. *EPage 9 of 30
signal. OE is asynchronous and is not sampled with the clock.
OE
is asserted, regardless of the state of GW, BWE, or BWX. Writes may occur only on subsequent clocks after
10. Table only lists a partial listing of the byte write combinations. Any combination of BW
Document Number: 38-05548 Rev. *EPage 10 of 30
is valid appropriate write will be done based on which byte write is active.
X
[+] Feedback
CY7C1386DV25, CY7C1386FV25
Bypass Register
0
Instruction Register
012
Identification Register
012293031...
Boundary Scan Register
012..x...
S
election
Circuitr
y
Selection
Circuitry
TCK
TMS
TAP CONTROLLER
TDITDO
CY7C1387DV25, CY7C1387FV25
IEEE 1149.1 Serial Boundary Scan (JTAG)
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 incorporates a serial boundary scan test
access port (TAP).This part is fully compliant with 1149.1. The
TAP operates using JEDEC-standard 3.3V or 2.5V IO logic
levels.
The CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/
CY7C1387FV25 contains a TAP controller, instruction register,
boundary scan register, bypass register, and ID register.
Disabling the JTAG Feature
It is possible to operate the SRAM without using the JTAG
feature. To disable the TAP controller, TCK must be tied LOW
) to prevent clocking of the device. TDI and TMS are
(V
SS
internally pulled up and may be unconnected. They may
alternately be connected to V
through a pull up resistor.
DD
TDO should be left unconnected. Upon power up, the device
will come up in a reset state which will not interfere with the
operation of the device.
TAP Controller State Diagram
TEST-LOGIC
1
RESET
0
IDLE
1
SELECT
DR-SCAN
11
CAPTURE-DR
SHIFT-DR
EXIT1-DR
PAUSE-DR
00
EXIT2-DR
UPDATE-DR
10
0
RUN-TEST/
The 0 or 1 next to each state represents the value of TMS at
the rising edge of TCK.
Test Access Port (TAP)
Test Clock (TCK)
The test clock is used only with the TAP controller. All inputs
are captured on the rising edge of TCK. All outputs are driven
from the falling edge of TCK.
Test MODE SELECT (TMS)
The TMS input is used to give commands to the TAP controller
and is sampled on the rising edge of TCK. This pin may be left
1
0
0
00
1
11
00
0
1
1
SELECT
IR-SCAN
0
CAPTURE-IR
0
SHIFT-IR
1
EXIT1-IR
PAUSE-IR
1
EXIT2-IR
1
UPDATE-IR
1
0
unconnected if the TAP is not used. The ball is pulled up
internally, resulting in a logic HIGH level.
Test Data-In (TDI)
The TDI ball is used to serially input information into the
registers and can be connected to the input of any of the
registers. The register between TDI and TDO is chosen by the
instruction that is loaded into the TAP instruction register. For
information on loading the instruction register, see TAP
Controller State Diagram. TDI is internally pulled up and can
be unconnected if the TAP is unused in an application. TDI is
connected to the most significant bit (MSB) of any register.
(See TAP Controller Block Diagram.)
Test Data-Out (TDO)
The TDO output ball is used to serially clock data out from the
registers. The output is active depending upon the current
state of the TAP state machine. The output changes on the
falling edge of TCK. TDO is connected to the least significant
bit (LSB) of any register. (See TAP Controller State Diagram.)
TAP Controller Block Diagram
1
0
Performing a TAP Reset
A RESET is performed by forcing TMS HIGH (V
rising edges of TCK. This RESET does not affect the operation
of the SRAM and may be performed while the SRAM is
operating.
At power up, the TAP is reset internally to ensure that TDO
comes up in a High-Z state.
TAP Registers
Registers are connected between the TDI and TDO balls and
allow data to be scanned into and out of the SRAM test
circuitry. Only one register can be selected at a time through
the instruction register. Data is serially loaded into the TDI ball
on the rising edge of TCK. Data is output on the TDO ball on
the falling edge of TCK.
Three-bit instructions can be serially loaded into the instruction
register. This register is loaded when it is placed between the
TDI and TDO balls as shown in the TAP Controller Block
Diagram. Upon power up, the instruction register is loaded
with the IDCODE instruction. It is also loaded with the IDCODE
instruction if the controller is placed in a reset state as
described in the previous section.
When the TAP controller is in the Capture-IR state, the two
least significant bits are loaded with a binary ‘01’ pattern to
allow for fault isolation of the board-level serial test data path.
Bypass Register
To save time when serially shifting data through registers, it is
sometimes advantageous to skip certain chips. The bypass
register is a single-bit register that can be placed between the
TDI and TDO balls. This allows data to be shifted through the
SRAM with minimal delay. The bypass register is set LOW
) when the BYPASS instruction is executed.
(V
SS
Boundary Scan Register
The boundary scan register is connected to all the input and
bidirectional balls on the SRAM.
The boundary scan register is loaded with the contents of the
RAM input and output ring when the TAP controller is in the
Capture-DR state and is then placed between the TDI and
TDO balls when the controller is moved to the Shift-DR state.
The EXTEST, SAMPLE/PRELOAD, and SAMPLE Z
instructions can be used to capture the contents of the input
and output ring.
The boundary scan order tables show the order in which the
bits are connected. Each bit corresponds to one of the bumps
on the SRAM package. The MSB of the register is connected
to TDI, and the LSB is connected to TDO.
Identification (ID) Register
The ID register is loaded with a vendor specific, 32-bit code
during the Capture-DR state when the IDCODE command is
loaded in the instruction register. The IDCODE is hardwired
into the SRAM and can be shifted out when the TAP controller
is in the Shift-DR state. The ID register has a vendor code and
other information described in the Identification Register
Definitions on page 15.
TAP Instruction Set
Overview
Eight different instructions are possible with the three bit
instruction register. All combinations are listed in Identification
Codes on page 15. Three of these instructions are listed as
RESERVED and should not be used. The other five
instructions are described in detail below.
Instructions are loaded into the TAP controller during the
Shift-IR state when the instruction register is placed between
TDI and TDO. During this state, instructions are shifted
through the instruction register through the TDI and TDO balls.
To execute the instruction once it is shifted in, the TAP
controller needs to be moved into the Update-IR state.
EXTEST
The EXTEST instruction enables the preloaded data to be
driven out through the system output pins. This instruction also
selects the boundary scan register to be connected for serial
access between the TDI and TDO in the Shift-DR controller
state.
IDCODE
The IDCODE instruction causes a vendor specific 32-bit code
to be loaded into the instruction register. It also places the
instruction register between the TDI and TDO balls and allows
the IDCODE to be shifted out of the device when the TAP
controller enters the Shift-DR state.
The IDCODE instruction is loaded into the instruction register
upon power up or whenever the TAP controller is given a test
logic reset state.
SAMPLE Z
The SAMPLE Z instruction causes the boundary scan register
to be connected between the TDI and TDO balls when the TAP
controller is in a Shift-DR state. The SAMPLE Z command
places all SRAM outputs into a High-Z state.
SAMPLE/PRELOAD
SAMPLE/PRELOAD is a 1149.1 mandatory instruction. When
the SAMPLE/PRELOAD instructions are loaded into the
instruction register and the TAP controller is in the Capture-DR
state, a snapshot of data on the input and output pins is
captured in the boundary scan register.
The user must be aware that the TAP controller clock can only
operate at a frequency up to 20 MHz, while the SRAM clock
operates more than an order of magnitude faster. As there is
a large difference in the clock frequencies, it is possible that
during the Capture-DR state, an input or output will undergo a
transition. The TAP may then try to capture a signal while in
transition (metastable state). This will not harm the device, but
there is no guarantee as to the value that will be captured.
Repeatable results may not be possible.
To guarantee that the boundary scan register will capture the
correct value of a signal, the SRAM signal must be stabilized
long enough to meet the TAP controller's capture setup plus
hold times (t
captured correctly if there is no way in a design to stop (or
slow) the clock during a SAMPLE/PRELOAD instruction. If this
is an issue, it is still possible to capture all other signals and
simply ignore the value of the CK and CK
boundary scan register.
Once the data is captured, it is possible to shift out the data by
putting the TAP into the Shift-DR state. This places the
boundary scan register between the TDI and TDO pins.
PRELOAD allows an initial data pattern to be placed at the
latched parallel outputs of the boundary scan register cells prior to the selection of another boundary scan test operation.
The shifting of data for the SAMPLE and PRELOAD phases
can occur concurrently when required; that is, while data
captured is shifted out, the preloaded data can be shifted in.
BYPASS
When the BYPASS instruction is loaded in the instruction
register and the TAP is placed in a Shift-DR state, the bypass
register is placed between the TDI and TDO balls. The
advantage of the BYPASS instruction is that it shortens the
boundary scan path when multiple devices are connected
together on a board.
EXTEST Output Bus Tri-State
IEEE Standard 1149.1 mandates that the TAP controller be
able to put the output bus into a tri-state mode.
The boundary scan register has a special bit located at bit #85
(for 119-BGA package) or bit #89 (for 165-fBGA package).
When this scan cell, called the “extest output bus tri-state,” is
latched into the preload register during the Update-DR state in
TAP Timing
123456
Test Clock
(TCK)
t
TMSS
t
t
TH
TMSH
t
the TAP controller, it will directly control the state of the output
(Q-bus) pins, when the EXTEST is entered as the current
instruction. When HIGH, it will enable the output buffers to
drive the output bus. When LOW, this bit will place the output
bus into a High-Z condition.
This bit can be set by entering the SAMPLE/PRELOAD or
EXTEST command, and then shifting the desired bit into that
cell, during the Shift-DR state. During Update-DR, the value
loaded into that shift-register cell will latch into the preload
register. When the EXTEST instruction is entered, this bit will
directly control the output Q-bus pins. Note that this bit is
preset HIGH to enable the output when the device is powered
up, and also when the TAP controller is in the Test-Logic-Reset
state.
Reserved
These instructions are not implemented but are reserved for
future use. Do not use these instructions.
21. Test conditions shown in (a) of AC Test Loads unless otherwise noted.
22. This part has a voltage regulator internally; t
can be initiated.
, t
23. t
CHZ
mV from steady-state voltage.
24. At any given voltage and temperature, t
data bus. These specifications do not imply a bus contention condition, but reflect parameters guaranteed over worst case user conditions. Device is designed
to achieve High-Z prior to Low-Z under the same system conditions.
25. This parameter is sampled and not 100% tested.
CLZ,tOELZ
, and t
are specified with AC test conditions shown in part (b) of AC Test Loads and Waveforms on page 19. Transition is measured ± 200
OEHZ
DDQ
OEHZ
= 2.5V.
POWER
is less than t
Document Number: 38-05548 Rev. *EPage 20 of 30
is the time that the power needs to be supplied above VDD(minimum) initially before a read or write operation
and t
OELZ
is less than t
CHZ
to eliminate bus contention between SRAMs when sharing the same
Not all of the speed, package, and temperature ranges are available. Please contact your local sales representative or
visit www.cypress.com for actual products offered.
Speed
(MHz)Ordering Code
167CY7C1386DV25-167AXC51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Pb-Free Commercial
CY7C1387DV25-167AXC
CY7C1386FV25-167BGC51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm)
CY7C1387FV25-167BGC
CY7C1386FV25-167BGXC51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm) Pb-Free
CY7C1387FV25-167BGXC
CY7C1386DV25-167BZC51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm)
CY7C1387DV25-167BZC
CY7C1386DV25-167BZXC51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free
CY7C1387DV25-167BZXC
CY7C1386DV25-167AXI51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Pb-Free Industrial
CY7C1387DV25-167AXI
CY7C1386FV25-167BGI51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm)
CY7C1387FV25-167BGI
CY7C1386FV25-167BGXI51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm) Pb-Free
CY7C1387FV25-167BGXI
CY7C1386DV25-167BZI51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm)
CY7C1387DV25-167BZI
CY7C1386DV25-167BZXI51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free
CY7C1387DV25-167BZXI
200CY7C1386DV25-200AXC51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Pb-Free Commercial
CY7C1387DV25-200AXC
CY7C1386FV25-200BGC51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm)
CY7C1387FV25-200BGC
CY7C1386FV25-200BGXC51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm) Pb-Free
CY7C1387FV25-200BGXC
CY7C1386DV25-200BZC51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm)
CY7C1387DV25-200BZC
CY7C1386DV25-200BZXC51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free
CY7C1387DV25-200BZXC
CY7C1386DV25-200AXI51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Pb-Free Industrial
CY7C1387DV25-200AXI
CY7C1386FV25-200BGI51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm)
CY7C1387FV25-200BGI
CY7C1386FV25-200BGXI51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm) Pb-Free
CY7C1387FV25-200BGXI
CY7C1386DV25-200BZI51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm)
CY7C1387DV25-200BZI
CY7C1386DV25-200BZXI51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free
Not all of the speed, package, and temperature ranges are available. Please contact your local sales representative or
visit www.cypress.com for actual products offered.
250CY7C1386DV25-250AXC51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Pb-Free Commercial
CY7C1387DV25-250AXC
CY7C1386FV25-250BGC51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm)
CY7C1387FV25-250BGC
CY7C1386FV25-250BGXC51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm) Pb-Free
CY7C1387FV25-250BGXC
CY7C1386DV25-250BZC51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm)
CY7C1387DV25-250BZC
CY7C1386DV25-250BZXC51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free
CY7C1387DV25-250BZXC
CY7C1386DV25-250AXI51-85050 100-pin Thin Quad Flat Pack (14 x 20 x 1.4 mm) Pb-Free Industrial
CY7C1387DV25-250AXI
CY7C1386FV25-250BGI51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm)
CY7C1387FV25-250BGI
CY7C1386FV25-250BGXI51-85115 119-ball Ball Grid Array (14 x 22 x 2.4 mm) Pb-Free
CY7C1387FV25-250BGXI
CY7C1386DV25-250BZI51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm)
CY7C1387DV25-250BZI
CY7C1386DV25-250BZXI51-85180 165-ball Fine-Pitch Ball Grid Array (13 x 15 x 1.4 mm) Pb-Free
i486 is a trademark, and Intel and Pentium are registered trademarks of Intel Corporation. PowerPC is a trademark of IBM
Corporation. All product and company names mentioned in this document are the trademarks of their respective holders.
Document Title: CY7C1386DV25/CY7C1387DV25/CY7C1386FV25/ CY7C1387FV25 18-Mb it (512K x 36/1M x 18) Pipelined
DCD Sync SRAM
Document Number: 38-05548
REV.ECN NO.Issue Date
**254550See ECNRKFNew data sheet
*A288531See ECNSYTEdited description under “IEEE 1149.1 Serial Boundary Scan (JTAG)” for
*B326078See ECNPCIAddress expansion pins/balls in the pinouts for all packages are modified as
*C418125See ECNNXRChanged address of Cypress Semiconductor Corporation on Page# 1 from
*D475009See ECNVKNConverted from Preliminary to Final.
*E793579See ECNVKNAdded Part numbers CY7C1386FV25 and CY7C1387FV25
Orig. of
Change
Description of Change
non-compliance with 1149.1
Removed 225 Mhz Speed Bin
Added Pb-free information for 100-Pin TQFP, 119 BGA and 165 FBGA
Packages
Added comment of ‘Pb-free BG packages availability’ below the Ordering
Information
per JEDEC standard
Added description on EXTEST Output Bus Tri-State
Changed description on the Tap Instruction Set Overview and Extest
Changed Device Width (23:18) for 119-BGA from 000110 to 101110
Added separate row for 165 -FBGA Device Width (23:18)
Changed Θ
4.0 °C/W respectively
Modified V
Removed shading on DC Table for 200 MHz speed bin
and Θ
JA
and Θ
JA
and Θ
JA
OL, VOH
for TQFP Package from 31 and 6 °C/W to 28.66 and
JC
for BGA Package from 45 and 7 °C/W to 23.8 and 6.2
JC
for FBGA Package from 46 and 3 °C/W to 20.7 and
JC
test conditions
Removed comment of ‘Pb-free BG packages availability’ below the Ordering
Information
“3901 North First Street” to “198 Champion Court”
Changed the description of I
Current on page# 18
from Input Load Current to Input Leakage
X
Changed the IX current values of MODE on page # 18 from –5 µA and 30 µA
to –30 µA and 5 µA
Changed the IX current values of ZZ on page # 18 from –30 µA and 5 µA
to °5 µA and 30 µA
Changed V
Updated Ordering Information Table
Added the Maximum Rating for Supply Voltage on V
Changed t
AC Switching Characteristics table.
< V
IH
TH
to VIH < VDDon page # 18
DD
, t
from 25 ns to 20 ns and t
TL
Relative to GND
DDQ
from 5 ns to 10 ns in TAP
TDOV
Updated the Ordering Information table.
Added footnote# 3 regarding Chip Enable
Updated Ordering Information table
Document Number: 38-05548 Rev. *EPage 30 of 30
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