1. CY7C136 and CY7C136A are functionally identical.
2. CY7C132/CY7C136/CY7C136A (Master): BUSY
is open drain output and requires pull up resistor . CY7C142/CY7C146 (Slave): BUSY is input.
3. Open drain outputs; pull up resistor required.
Functional Description
■ True dual-ported memory cells that enable simultaneous reads
of the same memory location
■ 2K x 8 organization
■ 0.65 micron CMOS for optimum speed and power
■ High speed access: 15 ns
■ Low operating power: I
■ Fully asynchronous operation
■ Automatic power down
■ Master CY7C132/CY7C136/CY7C136A
= 110 mA (maximum)
CC
[1]
easily expands data
bus width to 16 or more bits using slave CY7C142/CY7C146
■ BUSY output flag on CY7C132/CY7C136/CY7C136A;
BUSY input on CY7C142/CY7C146
■ INT flag for port to port communication (52-Pin PLCC/PQFP
versions)
■ CY7C136, CY7C136A, and CY7C146 available in 52-pin
PLCC and 52-pin PQFP packages
■ Pb-free packages available
The CY7C132, CY7C136, CY7C136A, CY7C142, and CY7C146
are high speed CMOS 2K x 8 dual-port static RAMs. Two ports
are provided to permit independent access to any location in
memory. The CY7C132, CY7C136, and CY7C136A can be used
as either a standalone 8-bit dual-port static RAM or as a
MASTER dual-port RAM, in conjunction with the
CY7C142/CY7C146 SLAVE dual-port device. They are used in
systems that require 16-bit or greater word widths. This is the
solution to applications that require shared or buffered data, such
as cache memory for DSP, bit-slice, or multiprocessor designs.
Each port has independent control pins; chip enable (CE
enable (R/W
on each port. In addition, an interrupt flag (INT
each port of the 52-pin PLCC version. BUSY
), and output enable (OE). BUSY flags are provided
) is provided on
signals that the port
), write
is trying to access the same location currently being accessed
by the other port. On the PLCC version, INT
is an interrupt flag
indicating that data is placed in an unique location (7FF for the
left port and 7FE for the right port).
An automatic power down feature is controlled independently on
each port by the chip enable (CE
) pins.
Cypress Semiconductor Corporation•198 Champion Court•San Jose, CA 95134-1709•408-943-2600
Document #: 38-06031 Rev. *E Revised March 24, 2009
[+] Feedback
CY7C132, CY7C136
CY7C136A, CY7C142, CY7C146
Pinouts
1
V
CC
OE
R
A
0R
8
9
10
11
12
13
14
15
16
17
18
19
20
46
45
44
43
42
41
40
39
38
37
36
35
34
2122 23 24 25 26 27 28 29 30 31 32 33
7 6 5 4 3 252 51 50 49 48 47
A
1R
A
2R
A
3R
A
4R
A
5R
A
6R
A
7R
A
8R
A
9R
NC
I/O
7R
A
1L
A
2L
A
3L
A
4L
A
5L
A
6L
A
7L
A
8L
A
9L
I/O
0L
I/O
1L
I/O
2L
I/O
3L
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
4L5L6L
7L
0R1R2R3R4R5R6R
NC
GND
OE
BUSY
INT
A
R/W
CE
R/W
BUSY
INT
0L
L
L
L
L
L
CE
R
R
R
R
7C136/7C136A
7C146
A
10L
A
10R
46
1
2
3
4
5
6
7
8
9
10
11
12
13
39
38
37
36
35
34
33
32
31
30
29
28
27
1415 16 17 18 19 20 21 22 23 24 25 26
52 51 50 49 48 4745 44 43 42 41 40
V
CC
OE
BUSY
INT
A
R/W
CE
R/W
BUSY
INT
0L
L
L
L
L
LCER
R
R
R
OE
R
A
0R
A
1R
A
2R
A
3R
A
4R
A
5R
A
6R
A
7R
A
8R
A
9R
NC
I/O
7R
A
1L
A
2L
A
3L
A
4L
A
5L
A
6L
A
7L
A
8L
A
9L
I/O
0L
I/O
1L
I/O
2L
I/O
3L
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
4L5L6L
7L
0R1R2R3R4R5R6R
NC
GND
7C136/7C136A
7C146
A
10L
A
10R
Note:
4. 15 ns and 25 ns version available in PQFP and PLCC packages only.
Latch up Current.................................................... > 200 mA
Operating Range
RangeAmbient TemperatureV
Commercial0°C to +70°C 5V ± 10%
Industrial–40°C to +85°C 5V ± 10%
[4]
7C132-35,45
7C136-35,45
7C142-35,45
7C146-35,45
7C136-15
7C146-15
7C132-30
[4]
7C136-25, 30
7C142-30
7C146-25, 30
Min Max Min Max Min Max Min Max
0.50.50.50.5
2.22.22.22.2V
0.80.80.80.8V
–5+5−5+5−5+5−5+5μA
Com’l/
190170120110mA
Ind’l
Com’l/
75654535mA
Ind’l
Com’l/
1351159075mA
Ind’l
Com’l/
15151515mA
Ind’l
Com’l/
1251058570mA
Ind’l
[7]
7C132-55
7C136-55
7C136A-55
7C142-55
7C146-55
CC
Unit
Document #: 38-06031 Rev. *EPage 3 of 15
[+] Feedback
CY7C132, CY7C136
CY7C136A, CY7C142, CY7C146
3.0V
5V
OUTPUT
R1 893Ω
R2
347Ω
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
90%
10%
<5ns
<5ns
5V
OUTPUT
R1 893Ω
R2
347Ω
5pF
INCLUDING
JIG AND
SCOPE
(a)(b)
OUTPUT1.4V
Equivalent to:TH ÉVENIN
EQUIVALENT
5V
281Ω
30 pF
BUSY
OR
INT
BUSY Output Load
(CY7C132/CY7C136 Only)
10%
ALL INPUT PULSES
250Ω
Notes
8. Test conditions assume signal transition t imes of 5 ns or le ss, t iming re ference levels of 1. 5V, input pulse levels of 0 to 3.0V and output loading of th e specified I
OL/IOH,
and 30 pF load capacitance.
9. AC test conditions use V
OH
= 1.6V and VOL = 1.4V.
10.At any given temperature and voltage condition for any given device, t
HZCE
is less than t
LZCE
and t
HZOE
is less than t
LZOE
.
11. t
LZCE
, t
LZWE
, t
HZOE
, t
LZOE, tHZCE,
and t
HZWE
are tested with CL = 5pF as in (b) of AC Test Loads and Waveforms. Transition is measured ± 500 mV from steady state
Data Hold from Address Change000ns
CE LOW to Data Valid
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
CE LOW to Low Z
CE HIGH to High Z
CE LOW to Power Up
[9]
[9]
[7, 10]
[7, 10, 11]
[7, 10]
[7, 10, 11]
[7]
CE HIGH to Power Down
[8]
[7]
[4]
7C132-30
7C136-30
7C142-30
7C146-30
7C136-15
7C146-15
[4]
7C132-25
7C136-25
7C142-25
7C146-25
MinMaxMinMaxMinMax
152530ns
152530ns
101520ns
333ns
101515ns
355ns
101515ns
000ns
152525ns
Unit
[+] Feedback
CY7C132, CY7C136
CY7C136A, CY7C142, CY7C146
Switching Characteristics
Notes
12.The internal write time of the memory is defined by the overlap of CE
LOW and R/W LOW. Both signals must be LOW t o initiate a write and eit her signal can terminate
a write by going HIGH. The data input setup and hold timing must be referenced to the rising edge of the signal that terminates the write.
13.These parameters are measured from the input signal changing, until the output pin goes to a high impedance state.
14.CY7C142/CY7C146 only.
15.A write operation on Port A, where Port A has priority , leaves the data on Port B’s outputs undisturbed until one access time after one of the following:
BUSY
on Port B goes HIGH.
Port B’s address toggled.
CE
for Port B is toggled.
R/W
for Port B is toggled during valid read.
16.52-pin PLCC and PQFP versions only.
Over the Operating Range (Speeds -15, -25, -30)
ParameterDescription
Write Cycle
t
WC
t
SCE
t
AW
t
HA
t
SA
t
PWE
t
SD
t
HD
t
HZWE
t
LZWE
Busy/Interrupt Timing
t
BLA
t
BHA
t
BLC
t
BHC
t
PS
t
WB
t
WH
t
BDD
t
DDD
t
WDD
Interrupt Timing
t
WINS
t
EINS
t
INS
t
OINR
t
EINR
t
INR
Shaded areas contain preliminary information.
[12]
Write Cycle Time152530ns
CE LOW to Write End122025ns
Address Setup to Write End122025ns
Address Hold from Write End222ns
Address Setup to Write Start000ns
R/W Pulse Width121525ns
Data Setup to Write End101515ns
Data Hold from Write End000ns
R/W LOW to High Z
R/W HIGH to Low Z
[7]
[7]
BUSY LOW from Address Match152020ns
BUSY HIGH from Address Mismatch
BUSY LOW from CE LOW152020ns
BUSY HIGH from CE HIGH
[13]
Port Set Up for Priority555ns
R/W LOW after BUSY LOW
[14]
R/W HIGH after BUSY HIGH132030ns
BUSY HIGH to Valid Data152530ns
Write Data V alid to Read Data ValidNote 15Note 15Note 15ns
Write Pulse to Data DelayNote 15Note 15Note 15ns
[16]
R/W to INTERRUPT Set Time152525ns
CE to INTERRUPT Set Time152525ns
Address to INTERRUPT Set Time 152525ns
OE to INTERRUPT Reset Time
CE to INTERRUPT Reset T i me
Address to INTERRUPT Reset Time
[8]
(continued)
[13]
[13]
[13]
[13]
[4]
7C132-30
7C136-30
7C142-30
7C146-30
Unit
7C136-15
7C146-15
[4]
7C132-25
7C136-25
7C142-25
7C146-25
MinMaxMinMaxMinMax
101515ns
000ns
152020ns
152020ns
000ns
152525ns
152525ns
152525ns
Document #: 38-06031 Rev. *EPage 5 of 15
[+] Feedback
CY7C132, CY7C136
CY7C136A, CY7C142, CY7C146
Switching Characteristics
Over the Operating Range (Speeds -35, -45, -55)
ParameterDescription
Read Cycle
t
RC
t
AA
t
OHA
t
ACE
t
DOE
t
LZOE
t
HZOE
t
LZCE
t
HZCE
t
PU
t
PD
Write Cycle
t
WC
t
SCE
t
AW
t
HA
t
SA
t
PWE
t
SD
t
HD
t
HZWE
t
LZWE
Busy/Interrupt Timing
t
BLA
t
BHA
t
BLC
t
BHC
t
PS
t
WB
t
WH
t
BDD
t
DDD
t
WDD
Read Cycle Time354555ns
Address to Data Valid
[9]
Data Hold from Address Change000ns
CE LOW to Data Valid
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
CE LOW to Low Z
CE HIGH to High Z
CE LOW to Power Up
CE HIGH to Power Down
[12]
[9]
[9]
[7, 10]
[7, 10, 11]
[7, 10]
[7, 10, 11]
[7]
[7]
Write Cycle Time354555ns
CE LOW to Write End303540ns
Address Setup to Write End303540ns
Address Hold from Write End222ns
Address Setup to Write Start000ns
R/W Pulse Width253030ns
Data Setup to Write End152020ns
Data Hold from Write End000ns
R/W LOW to High Z
R/W HIGH to Low Z
[7]
[7]
BUSY LOW from Address Match202530ns
BUSY HIGH from Address Mismatch
BUSY LOW from CE LOW202530ns
BUSY HIGH from CE HIGH
[13]
Port Set Up for Priority555ns
R/W LOW after BUSY LOW
[14]
R/W HIGH after BUSY HIGH303535ns
BUSY HIGH to Valid Data354545ns
Write Data Valid to Read Data ValidNote 15Note 15Note 15ns
Write Pulse to Data DelayNote 15Note 15Note 15ns
[8]
7C132-35
7C136-35
7C142-35
7C146-35
7C132-45
7C136-45
7C142-45
7C146-45
7C132-55
7C136-55
7C136A-55
7C142-55
7C146-55
Unit
MinMaxMinMaxMinMax
354555ns
354555ns
202525ns
333ns
202025ns
555ns
202025ns
000ns
353535ns
202025ns
000ns
[13]
202530ns
202530ns
000ns
Document #: 38-06031 Rev. *EPage 6 of 15
[+] Feedback
CY7C132, CY7C136
CY7C136A, CY7C142, CY7C146
Switching Characteristics
t
RC
t
AA
t
OHA
DATA VALIDPREVIOUS DATA VALID
DATA OUT
ADDRESS
t
ACE
t
LZOE
t
DOE
t
HZOE
t
HZCE
DATA VALID
DATA OUT
CE
OE
t
LZCE
t
PU
I
CC
I
SB
t
PD
Notes
17.R/W
is HIGH for read cycle.
18.Device is continuously selected, CE
= VIL and OE = VIL.
19.Address valid prior to or coincident with CE
transition LOW.
Over the Operating Range (Speeds -35, -45, -55)
ParameterDescription
Interrupt Timing
t
WINS
t
EINS
t
INS
t
OINR
t
EINR
t
INR
[16]
R/W to INTERRUPT Set Time253545ns
CE to INTERRUPT Set Time253545ns
Address to INTERRUPT Set Time 253545ns
OE to INTERRUPT Reset Time
CE to INTERRUPT Reset T i me
Address to INTERRUPT Reset Time
**11017110/21/01SZVChange from Spec number: 38-06031
*A12895909/03/03JFUAdded CY7C136-55NI to Order Information
*B236748See ECNYDTRemoved cross information from features section
*C393184See ECNYIMAdded Pb-Free Logo
Added Pb-Free parts to ordering information:
CY7C136-25JXC, CY7C136-25NXC, CY7C136-55JXC, CY7C136-55NXC,
CY7C136-55JXI, CY7C136-55NXI, CY7C146-25JXC, CY7C146-55JXC
*D262365812/17/08VKN/PYRS A dded CY7C136-25JXI part
Removed CY7C132/142 from the Ordering information table
Removed 48-Pin DIP and 52-Pin Square LCC package from the data sheet
*E267822103/24/2009 VKN/AESA Added CY7C136A-55JXI, and CY7C136A-55NXI parts.
Sales, Solutions, and Legal Information
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Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. T o find the office
closest to you, visit us at cypress.com/sales.
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 co pyright la ws and inte rnatio na l tre aty prov isi ons. Cyp ress he reby g rant s to lice nsee a p erson al, no n-ex clusi ve, non-tra nsferable license to copy, use, modify , create deriva tive works of,
and compile the Cypress Source Code and derivative works for the sole purpo se of creating custom sof tware and or firm ware in support of licen see product to be use d only in conjunction with a Cypress
integrated circuit as specified in th e applicable agreement. Any reproductio n, modification, translation, co mpilation, o r representati on of this Sour ce 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 W ARRANTIES
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 ap plicati on or u se o f any pr oduct o r circui t descri bed h erein. Cypr ess does not aut horize it s product s for use a s critical compo nent s in life-support systems whe re
a malfunction or failure may reasonab ly be expected to resu lt in significant injury t o the user. The inclusion of Cypress’ prod uct 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 #: 38-06031 Rev. *ERevised March 24, 2009Page 15 of 15
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