Cypress CY7C026AV - Manual
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Table of Contents:
- Page 2 – Pin Configurations
- Page 4 – Selection Guide; Parameter
- Page 5 – Write Operation; Figure 8; Read Operation; Interrupts; Pin Definitions; Left Port
- Page 6 – Table 2; Busy; Table 3
- Page 8 – Electrical Characteristics
- Page 9 – Switching Characteristics
- Page 10 – Data Retention Mode
- Page 11 – Switching Waveforms
- Page 13 – Figure 10. Semaphore Read After Write Timing, Either Side
- Page 15 – CE
- Page 16 – Right Side Clears INT
- Page 17 – Ordering Information
- Page 18 – Package Diagram
- Page 19 – Document History Page; Worldwide Sales and Design Support; Change
CY7C024AV/024BV/025AV/026AV
CY7C0241AV/0251AV/036AV
3.3V 4K/8K/16K x 16/18 Dual-Port
Static RAM
Cypress Semiconductor Corporation
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Document #: 38-06052 Rev. *J
Revised December 10, 2008
Features
■
True dual-ported memory cells which enable simultaneous
access of the same memory location
■
4, 8 or 16K × 16 organization
■
(CY7C024AV/024BV
[1]
/ 025AV/026AV)
■
4 or 8K × 18 organization (CY7C0241AV/0251AV)
■
16K × 18 organization (CY7C036AV)
■
0.35 micron CMOS for optimum speed and power
■
High speed access: 20 and 25 ns
■
Low operating power
❐
Active: I
CC
= 115 mA (typical)
❐
Standby: I
SB3
= 10
μ
A (typical)
■
Fully asynchronous operation
■
Automatic power down
■
Expandable data bus to 32 bits, 36 bits or more using Master
and Slave chip select when using more than one device
■
On chip arbitration logic
■
Semaphores included to permit software handshaking
between ports
■
INT flag for port-to-port communication
■
Separate upper byte and lower byte control
■
Pin select for Master or Slave (M/S)
■
Commercial and industrial temperature ranges
■
Available in 100-pin Pb-free TQFP and 100-pin TQFP
Notes
1. CY7C024AV and CY7C024BV are functionally identical.
2. IO
8
–IO
15
for x16 devices; IO
9
–IO
17
for x18 devices.
3. IO
0
–IO
7
for x16 devices; IO
0
–IO
8
for x18 devices.
4. A
0
–A
11
for 4K devices; A
0
–A
12
for 8K devices; A
0
–A
13
for 16K devices.
5. BUSY is an output in master mode and an input in slave mode.
R/W
L
OE
L
IO
8/9L
–IO
15/17L
IO
Control
Address
Decode
A
0L
–A
11/12/13L
CE
L
OE
L
R/W
L
BUSY
L
IO
Control
CE
L
Interrupt
Semaphore
Arbitration
SEM
L
INT
L
M/S
UB
L
LB
L
IO
0L
–IO
7/8L
R/W
R
OE
R
IO
8/9L
–IO
15/17R
CE
R
UB
R
LB
R
IO
0L
–IO
7/8R
UB
L
LB
L
A
0L
–A
11/1213L
True Dual-Ported
RAM Array
A
0R
–A
11/12/13R
CE
R
OE
R
R/W
R
BUSY
R
SEM
R
INT
R
UB
R
LB
R
Address
Decode
A
0R
–A
11/12/13R
[3]
[3]
12/13/14
8/9
8/9
12/13/14
8/9
8/9
12/13/14
12/13/14
[4]
[4]
Logic Block Diagram
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Summary
CY7C024AV/024BV/025AV/026AV CY7C0241AV/0251AV/036AV Document #: 38-06052 Rev. *J Page 2 of 19 Pin Configurations Figure 1. 100-Pin TQFP (Top View) Notes 6. A 12L on the CY7C025AV. 7. A 12R on the CY7C025AV. 100 99 97 98 96 23 1 42 41 59 60 61 1213 15 14 16 4 5 40 39 95 94 17 26 910 8 7 6 11 27 28 30...
CY7C024AV/024BV/025AV/026AV CY7C0241AV/0251AV/036AV Document #: 38-06052 Rev. *J Page 4 of 19 Figure 3. 100-Pin TQFP (Top View) Pin Configurations (continued) 100 99 97 98 96 23 1 42 41 59 60 61 1213 15 14 16 4 5 40 39 95 94 17 26 910 8 7 6 11 27 28 30 29 31 32 35 34 36 37 38 33 6766 64 65 6362 68 6...
CY7C024AV/024BV/025AV/026AV CY7C0241AV/0251AV/036AV Document #: 38-06052 Rev. *J Page 5 of 19 Architecture The CY7C024AV/024BV/025AV/026AV andCY7C0241AV/0251AV/036AV consist of an array of 4K, 8K, and16K words of 16 and 18 bits each of dual-port RAM cells, IO andaddress lines, and control signals (C...
