CY7C09579V-100AC Cypress Semiconductor Corp, CY7C09579V-100AC Datasheet - Page 6

• Manufacturer Part Number: CY7C09579V-100AC
• Description: SRAM Chip Sync Dual 3.3V 1.125M-Bit 32K x 36 12.5ns/5ns 144-Pin TQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C09579V-100AC

• Package: 144TQFP
• Timing Type: Synchronous
• Density: 1.125 Mb
• Data Rate Architecture: SDR
• Typical Operating Supply Voltage: 3.3 V
• Address Bus Width: 15 Bit
• Number Of I/o Lines: 36 Bit
• Number Of Ports: 2
• Number Of Words: 32K

Pin Definitions
Document Number: 38-06054 Rev. *E
A
ADS
CE
CLK
CNTEN
CNTRST
I/O
OE
R/W
FT/PIPE
B
–
–
V
V
0L
0L
SS
DD
Left Port
0L
L
L
–A
–B
L
L
L
–I/O
13/14L
3L
L
L
L
35L
A
ADS
CE
CLK
CNTEN
CNTRST
I/O
OE
R/W
FT/PIPE
–
BM, SIZE
BE
0R
Right Port
0R
R
R
–A
R
R
R
–I/O
13/14R
R
R
R
35R
Address Inputs (A
Address Strobe Input. Used as an address qualifier. This signal should be asserted LOW to assert
the part using the externally supplied address on Address Pins. To load this address into the Burst
Address Counter both ADS and CNTEN have to be LOW. ADS is disabled if CNTRST is asserted
LOW
Chip Enable Input
Clock Signal. This input can be free-running or strobed. Maximum clock input rate is f
Counter Enable Input. Asserting this signal LOW increments the burst address counter of its
respective port on each rising edge of CLK. CNTEN is disabled if CNTRST is asserted LOW
Counter Reset Input. Asserting this signal LOW resets the burst address counter of its respective
port to zero. CNTRST is not disabled by asserting ADS or CNTEN
Data Bus Input/Output
Output Enable Input. This signal must be asserted LOW to enable the I/O data pins during read
operations
Read/Write Enable Input. This signal is asserted LOW to write to the dual port memory array. For
read operations, assert this pin HIGH
Flow-Through/Pipelined Select Input. For flow-through mode operation, assert this pin LOW. For
pipelined mode operation, assert this pin HIGH
Byte Select Inputs. Asserting these signals enable read and write operations to the corresponding
bytes of the memory array
Select Pins for Bus Matching. See Bus Matching for details
Big Endian Pin. See Bus Matching for details
Ground Input
Power Input
0
–A
13
for 16 K, A
0
–A
14
for 32 K devices)
Description
CY7C09569V
CY7C09579V
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