- A16 for x8 configuration and Address A0 - A15 for x16 configuration.
2. Data DQ
0
- DQ7 for x8 configuration and Data DQ0 - DQ15 for x16 configuration.
3. BHE
and BLE are applicable for x16 configuration only.
Functional Description
■ 20 ns, 25 ns, and 45 ns Access Times
■ Internally organized as 128K x 8 (CY14B101LA) or 64K x 16
(CY14B101NA)
■ Hands off Automatic STORE on power down with only a small
Capacitor
■ STORE to QuantumTrap
Software, device pin, or AutoStore
■ RECALL to SRAM initiated by software or power up
■ Infinite Read, Write, and Recall Cycles
■ 200,000 STOREcycles to QuantumTrap
■ 20 year data retention
■ Single 3V +20% to -10% operation
■ Commercial and Industrial Temperatures
■ 48-ball FBGA, 44-pin TSOP - II, 48-pin SSOP, and 32-pin SOIC
®
nonvolatile elements initiated by
®
on power down
packages
■ Pb-free and RoHS compliance
The Cypress CY14B101LA/CY14B101NA is a fast static RAM,
with a nonvolatile element in each memory cell. The memory is
organized as 128K bytes of 8 bits each or 64K words of 16 bits
each. The embedded nonvolatile elements incorporate
QuantumTrap technology, producing the world’s most reliable
nonvolatile memory. The SRAM provides infinite read and write
cycles, while independent nonvolatile data resides in the highly
reliable QuantumTrap cell. Data transfers from the SRAM to the
nonvolatile elements (the STORE operation) takes place
automatically at power down. On power up, data is restored to
the SRAM (the RECALL operation) from the nonvolatile memory.
Both the STORE and RECALL operations are also available
under software control.
Cypress Semiconductor Corporation•198 Champion Court•San Jose, CA 95134-1709•408-943-2600
Document #: 001-42879 Rev. *B Revised January 29, 2009
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
Pinouts
WE
V
CC
A
11
A
10
V
CAP
A
6
A
0
A
3
CE
NC
NC
DQ
0
A
4
A
5
NC
DQ
2
DQ
3
NC
V
SS
A
9
A
8
OE
V
SS
A
7
NC
NC
NC
NC
A
2
A
1
NC
V
CC
DQ
4
NC
DQ
5
DQ
6
NC
DQ
7
NC
A
15
A
14
A
13
A
12
HSB
3
2
6
5
4
1
D
E
B
A
C
F
G
H
A
16
NCNC
DQ
1
48-FBGA
(not to scale)
Top View
(x8)
[6]
[7]
WE
V
CC
A
11
A
10
V
CAP
A
6
A
0
A
3
CE
DQ
10
DQ
8
DQ
9
A
4
A
5
DQ
13
DQ
12
DQ
14
DQ
15
V
SS
A
9
A
8
OE
V
SS
A
7
DQ
0
BHE
NC
NC
A
2
A
1
BLE
V
CC
DQ
2
DQ
1
DQ
3
DQ
4
DQ
5
DQ
6
DQ
7
A
15
A
14
A
13
A
12
HSB
3
2
6
5
4
1
D
E
B
A
C
F
G
H
NC
NC
NC
DQ
11
48-FBGA
(not to scale)
Top View
(x16)
[6]
[7]
[4]
[5]
[4]
[5]
NC
A
8
NC
NC
V
SS
DQ
6
DQ
5
DQ
4
V
CC
A
13
DQ
3
A
12
DQ
2
DQ
1
DQ
0
OE
A
9
CE
NC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
11
A
7
A
14
A
15
A
16
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
44 - TSOP II
Top View
(not to scale)
A
10
NC
WE
DQ
7
HSB
NC
V
SS
V
CC
V
CAP
NC
(x8)
[6]
[7]
V
SS
DQ
6
DQ
5
DQ
4
V
CC
A
13
DQ
3
A
12
DQ
2
DQ
1
DQ
0
BLE
A
9
CE
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
11
A
10
A
14
BHE
OE
A
15
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
44 - TSOP II
Top View
(not to scale)
WE
DQ
7
A
0
V
SS
V
CC
DQ
15
DQ
14
DQ
13
DQ
12
DQ
11
DQ
10
DQ
9
DQ
8
V
CAP
(x16)
44-TSOP II
(x8)
44-TSOP II
(x16)
[8]
[4]
[5]
[4]
[5]
Notes
4. Address expansion for 2 Mbit. NC pin not connected to die.
5. Address expansion for 4 Mbit. NC pin not connected to die.
6. Address expansion for 8 Mbit. NC pin not connected to die.
7. Address expansion for 16 Mbit. NC pin not connected to die.
8. HSB
pin is not available in 44-TSOP II (x16) package.
Figure 1. Pin Diagram - 48 FBGA
Figure 2. Pin Diagram - 44 Pin TSOP II
Document #: 001-42879 Rev. *BPage 2 of 25
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
Pinouts (continued)
NC
A
8
NC
NC
V
SS
DQ6
DQ5
DQ4
V
CC
A
13
DQ3
A
12
DQ2
DQ1
DQ0
OE
A
9
CE
NC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
11
A
7
A
14
A
15
A
16
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Top View
(not to scale)
A
10
NC
WE
DQ7
HSB
INT
V
SS
V
CC
V
CAP
NC
45
46
47
48
NC
NC
NC
NC
48-SSOP
Figure 3. Pin Diagram - 48-Pin SSOP and 32-Pin SOIC
Table 1. Pin Definitions
Pin NameI/O TypeDescription
– A
A
0
– A
A
0
– DQ
DQ
0
DQ0 – DQ
WE
16
15
7
Input/Output
15
Input
InputWrite Enable Input, Active LOW. When the chip is enabled and WE is LOW, data on the I/O pins is written
Address Inputs Used to Select one of the 131,072 bytes of the nvSRAM for x8 Configuration.
Address Inputs Used to Select one of the 65,536 words of the nvSRAM for x16 Configuration.
Bidirectional Data I/O Lines for x8 Configuration. Used as input or output lines depending on operation.
Bidirectional Data I/O Lines for x16 Configuration. Used as input or output lines depending on
operation.
to the specific address location.
CE
OE
BHE
BLE
V
SS
V
CC
[8]
HSB
V
CAP
NCNo Connect No Connect. This pin is not connected to the die.
Document #: 001-42879 Rev. *BPage 3 of 25
InputChip Enable Input, Active LOW. When LOW, selects the chip. When HIGH, deselects the chip.
HIGH.
InputOutput Enable, Active LOW. The active LOW OE input enables the data output buffers during read
cycles. I/O pins are tri-stated on deasserting OE
InputByte High Enable, Active LOW. Controls DQ15 - DQ8.
InputByte Low Enable, Active LOW. Controls DQ7 - DQ0.
GroundGround for the Device. Must be connected to the ground of the system.
Power
Power Supply Inputs to the Device. 3.0V +20%, –10%
Supply
Input/Output Hardware STORE Busy (HSB). When LOW this output indicates that a Hardware STORE is in progress.
Power
Supply
When pulled LOW external to the chip it initiates a nonvolatile STORE operation. A weak internal pull up
resistor keeps this pin HIGH if not connected (connection optional). After each STORE operation HSB is
driven HIGH for short time with standard output high current.
AutoStore Capacitor. Supplies power to the nvSRAM during power loss to store data from SRAM to
nonvolatile elements.
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
Device Operation
0.1uF
Vcc
10kOhm
V
CAP
Vcc
WE
V
CAP
V
SS
The CY14B101LA/CY14B101NA nvSRAM is made up of two
functional components paired in the same physical cell. They are
an SRAM memory cell and a nonvolatile QuantumTrap cell. The
SRAM memory cell operates as a standard fast static RAM. Data
in the SRAM is transferred to the nonvolatile cell (the STORE
operation), or from the nonvolatile cell to the SRAM (the RECALL
operation). Using this unique architecture, all cells are stored and
recalled in parallel. During the STORE and RECALL operations,
SRAM read and write operations are inhibited. The
CY14B101LA/CY14B101NA supports infinite reads and writes
similar to a typical SRAM. In addition, it provides infinite RECALL
operations from the nonvolatile cells and up to 200K STORE
operations. Refer to the Truth Table For SRAM Operations on
page 15for a complete description of read and write modes.
SRAM Read
The CY14B101LA/CY14B101NA performs a read cycle when
CE
and OE are LOW and WE and HSB are HIGH. The address
specified on pins A
data bytes or 65,536 words of 16 bits each are accessed. Byte
enables (BHE, BLE) determine which bytes are enabled to the
output, in the case of 16-bit words. When the read is initiated by
an address transition, the outputs are valid after a delay of t
(read cycle 1). If the read is initiated by CE or OE, the outputs
are valid at t
data output repeatedly responds to address changes within the
ACE
tAA access time without the need for transitions on any control
input pins. This remains valid until another address change or
until CE or OE is brought HIGH, or WE or HSB is brought LOW.
0-16
or at t
or A
DOE
determines which of the 131,072
0-15
, whichever is later (read cycle 2). The
AA
Figure 4 shows the proper connection of the storage capacitor
(V
) for automatic STORE operation. Refer to DC Electrical
CAP
Characteristics on page 7 for the size of V
the V
pull up on WE
only effective if the WE
pin is driven to V
CAP
to hold it inactive during power up. This pull up is
by a regulator on the chip. Place a
CC
signal is tri-state during power up. Many
. The voltage on
CAP
MPUs tri-state their controls on power up. This must be verified
when using the pull up. When the nvSRAM comes out of
power-on-recall, the MPU must be active or the WE
held inactive
until the MPU comes out of reset.
To reduce unnecessary nonvolatile stores, AutoStore and
Hardware STORE operations are ignored unless at least one
write operation has taken place since the most recent STORE or
RECALL cycle. Software initiated STORE cycles are performed
regardless of whether a write operation has taken place. The
HSB
signal is monitored by the system to detect if an AutoStore
cycle is in progress.
Figure 4. AutoStore Mode
SRAM Write
A write cycle is performed when CE and WE are LOW and HSB
is HIGH. The address inputs must be stable before entering the
write cycle and must remain stable until CE
or WE goes HIGH at
the end of the cycle. The data on the common I/O pins DQ
are written into the memory if the data is valid tSD before the end
of a WE
write. The Byte Enable inputs (BHE
are written, in the case of 16-bit words. Keep OE
-controlled write or before the end of a CE-controlled
, BLE) determine which bytes
HIGH during
the entire write cycle to avoid data bus contention on common
I/O lines. If OE
buffers t
is left LOW, internal circuitry turns off the output
after WE goes LOW.
HZWE
AutoStore Operation
The CY14B101LA/CY14B101NA stores data to the nvSRAM
using one of the following three storage operations: Hardware
STORE activated by HSB;
address sequence; AutoStore on device power down. The
AutoStore operation is a unique feature of QuantumTrap
technology and is enabled by default on the
CY14B101LA/CY14B101NA.
During a normal operation, the device draws current from V
charge a capacitor connected to the V
charge is used by the chip to perform a single STORE operation.
If the voltage on the VCC pin drops below V
automatically disconnects the V
operation is initiated with power provided by the V
Software STORE activated by an
pin. This stored
CAP
, the part
pin from VCC. A STORE
CAP
SWITCH
CAP
capacitor.
0–15
CC
Hardware STORE Operation
The CY14B101LA/CY14B101NA provides the HSB
control and acknowledge the STORE operations. Use the HSB
pin to request a Hardware STORE cycle. When the HSB pin is
driven LOW, the CY14B101LA/CY14B101NA conditionally
initiates a STORE operation after t
only begins if a write to the SRAM has taken place since the last
STORE or RECALL cycle. The HSB pin also acts as an open
drain driver that is internally driven LOW to indicate a busy
condition when the STORE (initiated by any means) is in
progress.
SRAM read and write operations that are in progress when HSB
is driven LOW by any means are given time to complete before
the STORE operation is initiated. After HSB
CY14B101LA/CY14B101NA continues SRAM operations for
. However, any SRAM write cycles requested after HSB
t
DELAY
goes LOW are inhibited until HSB returns HIGH. If the write latch
is not set, HSB
to
CY14B101LA/CY14B101NA, but any SRAM read/write cycles
are inhibited until HSB
is not driven low by the
is returned HIGH by MPU or another
external source.
. An actual STORE cycle
DELAY
goes LOW, the
[8]
pin to
Document #: 001-42879 Rev. *BPage 4 of 25
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
During any STORE operation, regardless of how it is initiated,
Notes
9. While there are 17 address lines on the CY14B101LA (16 address lines on the CY14B101NA), only the 13 address lines (A
14
- A2) are used to control software modes.
Rest of the address lines are don’t care.
10. The six consecutive address locations must be in the order listed. WE
must be HIGH during all six cycles to enable a nonvolatile cycle.
the CY14B101LA/CY14B101NA continues to drive the HSB
pin
LOW, releasing it only when the STORE is complete. Upon
completion of the STORE operation, the
CY14B101LA/CY14B101NA remains disabled until the HSB
returns HIGH. Leave the HSB
unconnected if it is not used.
pin
Hardware RECALL (Power Up)
During power up or after any low power condition
(V
CC<VSWITCH
V
again exceeds the sense voltage of V
CC
cycle is automatically initiated and takes t
During this time, HSB
), an internal RECALL request is latched. When
, a RECALL
SWITCH
is driven low by the HSB driver.
HRECALL
to complete.
Software STORE
Data is transferred from SRAM to the nonvolatile memory by a
software address sequence. The CY14B101LA/CY14B101NA
Software STORE cycle is initiated by executing sequential CE
controlled read cycles from six specific address locations in
exact order. During the STORE cycle an erase of the previous
nonvolatile data is first performed, followed by a program of the
nonvolatile elements. After a STORE cycle is initiated, further
input and output are disabled until the cycle is completed.
Because a sequence of READs from specific addresses is used
for STORE initiation, it is important that no other read or write
accesses intervene in the sequence, or the sequence is aborted
and no STORE or RECALL takes place.
To initiate the Software STORE cycle, the following read
sequence must be performed:
1. Read Address 0x4E38 Valid READ
2. Read Address 0xB1C7 Valid READ
3. Read Address 0x83E0 Valid READ
4. Read Address 0x7C1F Valid READ
5. Read Address 0x703F Valid READ
6. Read Address 0x8FC0 Initiate STORE Cycle
Table 2. Mode Selection
The software sequence may be clocked with CE
controlled reads. After the sixth address in the sequence
or OE
controlled reads
is entered, the STORE cycle commences and the chip is
disabled. HSB
is driven low. It is important to use read cycles and
not write cycles in the sequence, although it is not necessary that
OE be LOW for a valid sequence. After the t
fulfilled, the SRAM is activated again for the read and write
STORE
cycle time is
operation.
Software RECALL
Data is transferred from nonvolatile memory to the SRAM by a
software address sequence. A Software RECALL cycle is
initiated with a sequence of read operations in a manner similar
to the Software STORE initiation. To initiate the RECALL cycle,
the following sequence of CE
performed:
1. Read Address 0x4E38 Valid READ
2. Read Address 0xB1C7 Valid READ
3. Read Address 0x83E0 Valid READ
4. Read Address 0x7C1F Valid READ
5. Read Address 0x703F Valid READ
6. Read Address 0x4C63 Initiate RECALL Cycle
Internally, RECALL is a two step procedure. First, the SRAM data
is cleared. Next, the nonvolatile information is transferred into the
SRAM cells. After the t
ready for read and write operations. The RECALL operation
does not alter the data in the nonvolatile elements.
controlled read operations must be
cycle time, the SRAM is again
RECALL
CEWEOE, BHE, BLE
[3]
A15 - A
[9]
0
ModeI/OPower
HXXXNot SelectedOutput High ZStandby
LHLXRead SRAMOutput Data Active
LLXXWrite SRAMInput Data Active
LHL0x4E38
0xB1C7
0x83E0
0x7C1F
0x703F
0x8B45
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
AutoStore
Disable
Document #: 001-42879 Rev. *BPage 5 of 25
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Active
[10]
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
Table 2. Mode Selection (continued)
CEWEOE, BHE, BLE
[3]
LHL0x4E38
LHL0x4E38
LHL0x4E38
Preventing AutoStore
The AutoStore function is disabled by initiating an AutoStore
disable sequence. A sequence of read operations is performed
in a manner similar to the Software STORE initiation. To initiate
the AutoStore disable sequence, the following sequence of CE
controlled read operations must be performed:
1. Read address 0x4E38 Valid READ
2. Read address 0xB1C7 Valid READ
3. Read address 0x83E0 Valid READ
4. Read address 0x7C1F Valid READ
5. Read address 0x703F Valid READ
6. Read address 0x8B45 AutoStore Disable
The AutoStore is reenabled by initiating an AutoStore enable
sequence. A sequence of read operations is performed in a
manner similar to the Software RECALL initiation. To initiate the
AutoStore enable sequence, the following sequence of CE
controlled read operations must be performed:
1. Read address 0x4E38 Valid READ
2. Read address 0xB1C7 Valid READ
3. Read address 0x83E0 Valid READ
4. Read address 0x7C1F Valid READ
5. Read address 0x703F Valid READ
6. Read address 0x4B46 AutoStore Enable
If the AutoStore function is disabled or reenabled, a manual
STORE operation (Hardware or Software) must be issued to
save the AutoStore state through subsequent power down
cycles. The part comes from the factory with AutoStore enabled.
0xB1C7
0x83E0
0x7C1F
0x703F
0x4B46
0xB1C7
0x83E0
0x7C1F
0x703F
0x8FC0
[9]
0
ModeI/OPower
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
AutoStore Enable
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
Active I
A15 - A
STORE
Output Data
Output Data
Output Data
Output Data
Output Data
Output High Z
0xB1C7
0x83E0
0x7C1F
0x703F
0x4C63
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Nonvolatile
Recall
Data Protection
The CY14B101LA/CY14B101NA protects data from corruption
during low voltage conditions by inhibiting all externally initiated
STORE and write operations. The low voltage condition is
detected when V
CY14B101LA/CY14B101NA is in a write mode (both CE
is less than V
CC
SWITCH
are LOW) at power up, after a RECALL or STORE, the write is
inhibited until the SRAM is enabled after t
active). This protects against inadvertent writes during power up
LZHSB
or brown out conditions.
Noise Considerations
Refer to CY application note AN1064.
[10]
Active
[10]
CC2
[10]
Active
. If the
and WE
(HSB to output
Document #: 001-42879 Rev. *BPage 6 of 25
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
Maximum Ratings
Notes
11. Typical conditions for the active current shown on the DC Electrical characteristics are average values at 25°C (room temperature), and V
CC
= 3V. Not 100% tested.
12. The HSB
pin has I
OUT
= -2 uA for VOH of 2.4V when both active high and low drivers are disabled. When they are enabled standard VOH and VOL are valid. This
parameter is characterized but not tested.
13. V
CAP
(Storage capacitor) nominal value is 68 uF.
Exceeding maximum ratings may impair the useful life of the
device. These user guidelines are not tested.
Storage Temperature ................................. –65°C to +150°C
Maximum Accumulated Storage Time:
At 150°C Ambient Temperature ........................1000h
At 85°C Ambient Temperature..................... 20 Years
Ambient Temperature with Power Applied.. –55°C to +150°C
Supply Voltage on V
Voltage Applied to Outputs in High-Z State–0.5V to V
Input Voltage.............................................–0.5V to Vcc+0.5V
Write Cycle Time202545ns
Write Pulse Width152030ns
Chip Enable To End of Write152030ns
Data Setup to End of Write81015ns
Data Hold After End of Write000ns
Address Setup to End of Write152030ns
Address Setup to Start of Write000ns
Address Hold After End of Write000ns
Write Enable to Output Disable81015ns
Output Active after End of Write333ns
Switching Waveforms
Figure 6. SRAM Read Cycle #1: Address Controlled
Description
20 ns25 ns45 ns
MinMaxMinMaxMinMax
[15, 16, 19]
Unit
Document #: 001-42879 Rev. *BPage 9 of 25
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
Note
21. CE
or WE must be > VIH during address transitions.
CE
Data Output
Data Input
Input Data Valid
High Impedance
Address ValidAddress
Previous Data
t
WC
t
SCE
t
HA
t
BW
t
AW
t
PWE
t
SA
t
SD
t
HD
t
HZWE
t
LZWE
WE
BHE, BLE
CE
OE
BHE, BLE
Data Output
I
CC
Figure 7. SRAM Read Cycle #2: CE and OE Controlled
Address ValidAddress
t
RC
t
ACE
t
AA
t
LZCE
t
DOE
t
LZOE
t
DBE
t
LZBE
High Impedance
t
PU
Standby
Active
[3, 15, 19]
t
HZCE
t
HZOE
t
HZBE
Output Data Valid
t
PD
Figure 8. SRAM Write Cycle #1: WE Controlled
[3, 18, 19, 21]
Document #: 001-42879 Rev. *BPage 10 of 25
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
Figure 9. SRAM Write Cycle #2: CE
Data Output
Data Input
Input Data Valid
High Impedance
Address Valid
Address
t
WC
t
SD
t
HD
BHE, BLE
WE
CE
t
SA
t
SCE
t
HA
t
BW
t
PWE
Data Output
Data Input
Input Data Valid
High Impedance
Address ValidAddress
t
WC
t
SD
t
HD
BHE, BLE
WE
CE
t
SCE
t
SA
t
BW
t
HA
t
AW
t
PWE
Controlled
[3, 18, 19, 21]
Figure 10. SRAM Write Cycle #3: BHE and BLE Controlled
Document #: 001-42879 Rev. *BPage 11 of 25
[3, 18, 19, 21]
[+] Feedback
PRELIMINARY
CY14B101LA, CY14B101NA
AutoStore/Power Up RECALL
V
SWITCH
V
HDIS
V
VCCR ISE
t
STORE
t
STORE
t
HHHD
t
HHHD
t
DELAY
t
DELAY
t
LZHSB
t
LZHSB
t
HRECALL
t
HRECALL
HSB OUT
Autostore
POWER-
UP
RECALL
Read & Write
Inhibited
(
RWI)
POWER-UP
RECALL
Read & Write
BROWN
OUT
Autostore
POWER-UP
RECALL
Read & Write
POWER
DOWN
Autostore
Note
23
Note
23
Note
26
Notes
22. t
HRECALL
starts from the time VCC rises above V
SWITCH.
23. If an SRAM write has not taken place since the last nonvolatile cycle, no AutoStore or Hardware STORE takes place.
24. On a Hardware STORE, Software STORE / Recall, AutoStore Enable / Disable and AutoStore initiation, SRAM operation continues to be enabled for time t
DELAY
.
25. Read and Write cycles are ignored during STORE, RECALL, and while VCC is below V
SWITCH.
26. HSB pin is driven high to VCC only by internal 100kOhm resistor, HSB driver is disabled.
ParametersDescription
[27]
t
HRECALL
t
STORE
t
DELAY
V
SWITCH
t
VCCRISE
V
HDIS
t
LZHSB
t
HHHD
Power Up RECALL Duration202020ms
[23]
STORE Cycle Duration888ms
[24]
Time Allowed to Complete SRAM Cycle202525ns
Low Voltage Trigger Level2.652.652.65V
VCC Rise Time150150150µs
[14]
HSB Output Driver Disable Voltage1.91.91.9V
HSB To Output Active Time555µs
HSB High Active Time500500500ns
Switching Waveforms
20 ns25 ns45 ns
MinMaxMinMaxMinMax
Figure 11. AutoStore or Power Up RECALL
Unit
[27]
Document #: 001-42879 Rev. *BPage 12 of 25
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PRELIMINARY
CY14B101LA, CY14B101NA
Software Controlled STORE/RECALL Cycle
t
RC
t
RC
t
SA
t
CW
t
CW
t
SA
t
HA
t
LZCE
t
HZCE
t
HA
t
HA
t
HA
t
DELAY
t
STORE/tRECALL
t
HHHD
t
LZHSB
High Impedance
Address #1Address #6Address
CE
OE
HSB(STOREonly)
DQ (DATA)
RWI
Notes
27. The software sequence is clocked with CE
controlled or OE controlled reads.
28. The six consecutive addresses must be read in the order listed in Table 2 on page 5. WE
must be HIGH during all six consecutive cycles.
Parameters
t
RC
t
SA
t
CW
t
HA
t
RECALL
[27, 28]
Description
STORE/RECALL Initiation Cycle Time202545ns
Address Setup Time000ns
Clock Pulse Width152030ns
Address Hold Time000ns
RECALL Duration200200200µs
Switching Waveforms
20 ns25 ns45 ns
MinMaxMinMaxMinMax
Unit
Figure 12. CE and OE Controlled Software STORE/RECALL Cycle
Figure 13. Autostore Enable / Disable Cycle
t
RC
Address #1Address #6Address
t
SA
t
CW
t
RC
t
CW
[28]
CE
OE
DQ (DATA)
t
SA
t
LZCE
t
t
t
HZCE
HA
HA
Document #: 001-42879 Rev. *BPage 13 of 25
t
HA
t
DELAY
t
HA
t
SS
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PRELIMINARY
CY14B101LA, CY14B101NA
Hardware STORE Cycle
t
PHSB
t
PHSB
t
DELAY
t
DHSB
t
DELAY
t
STORE
t
HHHD
t
LZHSB
Write latch set
Write latch not set
HSB (IN)
HSB (OUT)
DQ (Data Out)
RWI
HSB (IN)
HSB (OUT)
RWI
HSB pin is driven high to V
CC
only by Internal
SRAM is disabled as long as HSB (IN) is driven low.
HSB driver is disabled
t
DHSB
100kOhm resistor,
Address #1Address #6Address #1Address #6
Soft Sequence
Command
t
SS
t
SS
CE
Address
V
CC
t
SA
t
CW
Soft Sequence
Command
t
CW
ParametersDescription
t
DHSB
t
PHSB
t
SS
[29, 30]
HSB To Output Active Time when write latch not set202525ns
Hardware STORE Pulse Width151515ns
Soft Sequence Processing Time100100100μs
20ns25ns45ns
MinMaxMinMaxMinMax
Unit
Switching Waveforms
Figure 14. Hardware STORE Cycle
[23]
Notes
29. This is the amount of time it takes to take action on a soft sequence command. Vcc power must remain HIGH to effectively register command.
30. Commands such as STORE and RECALL lock out IO until operation is complete which further increases this time. See the specific command.
All parts are Pb-free. The above table contains Preliminary information. Please contact your local Cypress sales representative for availability of these parts.
Ordering Code
Package
Diagram
Package Type
Operating
Range
Document #: 001-42879 Rev. *BPage 18 of 25
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PRELIMINARY
CY14B101LA, CY14B101NA
Part Numbering Nomenclature
Option:
T - Tape & Reel
Blank - Std.
Speed:
20 - 20 ns
25 - 25 ns
Data Bus:
L - x8
N - x16
Density:
101 - 1 Mb
Voltage:
B - 3.0V
Cypress
CY 14 B 101L A-ZS 20 X C T
NVSRAM
14 - AutoStore + Software STORE + Hardware STORE
Temperature:
C - Commercial (0 to 70°C)
I - Industrial (–40 to 85°C)
Pb-Free
Package:
BA - 48 FBGA
ZS - TSOP II
45 - 45 ns
SP - 48 SSOP
SZ - 32 SOIC
Die revision:
Blank: No Rev
A - 1
st
Rev
Document #: 001-42879 Rev. *BPage 19 of 25
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PRELIMINARY
CY14B101LA, CY14B101NA
Package Diagrams
MAX
MIN.
DIMENSION IN MM (INCH)
11.938 (0.470)
PLANE
SEATING
PIN 1 I.D.
44
1
18.517 (0.729)
0.800 BSC
0°-5°
0.400(0.016)
0.300 (0.012)
EJECTOR PIN
R
G
OKE
A
X
S
11.735 (0.462)
10.058 (0.396)
10.262 (0.404)
1.194 (0.047)
0.991 (0.039)
0.150 (0.0059)
0.050 (0.0020)
(0.0315)
18.313 (0.721)
10.058 (0.396)
10.262 (0.404)
0.597 (0.0235)
0.406 (0.0160)
0.210 (0.0083)
0.120 (0.0047)
BASE PLANE
0.10 (.004)
22
23
TOP VIEWBOTTOM VIEW
51-85087-*A
Figure 16. 44-Pin TSOP II (51-85087)
Document #: 001-42879 Rev. *BPage 20 of 25
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PRELIMINARY
CY14B101LA, CY14B101NA
Package Diagrams (continued)
A
1
A1 CORNER
0.75
0.75
Ø0.30±0.05(48X)
Ø0.25 M C A B
Ø0.05 M C
B
A
0.15(4X)
0.21±0.05
1.20 MAX
C
SEATING PLANE
0.53±0.05
0.25 C
0.15 C
A1 CORNER
TOP VIEW
BOTTOM VIEW
234
3.75
5.25
B
C
D
E
F
G
H
65
465231
D
H
F
G
E
C
B
A
6.00±0.10
10.00±0.10
A
10.00±0.10
6.00±0.10
B
1.875
2.625
0.36
51-85128-*D
Figure 17. 48-Ball FBGA - 6 mm x 10 mm x 1.2 mm (51-85128)
Document #: 001-42879 Rev. *BPage 21 of 25
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PRELIMINARY
CY14B101LA, CY14B101NA
Package Diagrams (continued)
51-85061 *C
Figure 18. 48-Pin SSOP (51-85061)
Document #: 001-42879 Rev. *BPage 22 of 25
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PRELIMINARY
CY14B101LA, CY14B101NA
Package Diagrams (continued)
Figure 19. 32-Pin SOIC (51-85127)
Document #: 001-42879 Rev. *BPage 23 of 25
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PRELIMINARY
CY14B101LA, CY14B101NA
Document History Page
Document Title: CY14B101LA/CY14B101NA 1 Mbit (128K x 8/64K x 16) nvSRAM
Document Number: 001-42879
*B265448402/05/09GVCH/PYRSChanged the data sheet from Advance information to Preliminary
Orig. of
Change
Description of Change
Updated “Features”
Updated Logic block diagram
Added footnote 1 2, 3 and 7
Pin definition: Updated WE
, HSB and NC pin description
Page 4: Updated SRAM READ, SRAM WRITE, Autostore operation description
Updated Figure 4
Page 4: Updated Hardware store operation and Hardware RECALL (Power
up)description
Page 4: Updated Software store and software recall description
Footnote 1 and 11 referenced for Mode selection Table
Added footnote 11
Updated footnote 9 and 10
Page 6: updated Data protection description
Maximum Ratings:Added Max. Accumulated storage time
Changed Output short circuit current parameter name to DC output current
Changed I
Changed I
Changed I
Changed I
Added I
Updated I
Changed V
Added V
Updated footnote 12 and 13
from 6mA to 10mA
CC2
from 15mA to 35mA
CC3
from 6mA to 5mA
CC4
from 3mA to 5mA
SB
for HSB
IX
CC1, ICC3, ISB
voltage min value from 68uF to 61uF
CAP
voltage max value to 180uF
CAP
and I
Test conditions
OZ
Added footnote 14
Added Data retention and Endurance Table
Added thermal resistance value to 48-pin FBGA and 44-pin TSOP II packages
Updated Input Rise and Fall time in AC test Conditions
Referenced footnote 17 to t
Updated All switching waveforms
parameter
OHA
Updated footnote 17
Added footnote 20
Added Figure 10 (SRAM WRITE CYCLE:BHE
Changed t
Updated t
Added V
Updated footnote 24
HDIS
max value from 12.5ms to 8ms
STORE
value
DELAY
, t
HHHD
and t
LZHSB
parameters
and BLE controlled)
Added footnote 26 and 27
Software controlled STORE/RECALL Table: Changed t
Changed t
Changed t
Added Figure 13
Added t
Changed t
DHSB
Updated tSS from 70us to 100us
to t
GHAX
HA
HA
value from 1ns to 0 ns
parameter
to t
HLHX
PHSB
AS
to t
Added truth table for SRAM operations
Updated ordering information and part numbering nomenclature
, t
Referenced Note 15 to parameters t
Updated Figure 12
LZCE
, t
HZCE
LZOE, tHZOE, tLZWE
SA
and t
HZWE
Document #: 001-42879 Rev. *BPage 24 of 25
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PRELIMINARY
CY14B101LA, CY14B101NA
Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office
closest to you, visit us at cypress.com/sales.
Products
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Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),
United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,
and compile the Cypress Sou rce Code and derivative works for the sole purpose of cr eating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without
the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer
assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Document #: 001-42879 Rev. *BRevised January 29, 2009Page 25 of 25
AutoStore and QuantumTrap are registered trademarks of Cypress Semiconductor Corporation. All products and company names mentioned in this document are the trademarks of their respective
holders.
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