Cypress CY7C026AV, CY7C024AV, CY7C024BV, CY7C0251AV, CY7C036AV manual Features, Logic Block Diagram

CY7C024AV/024BV/025AV/026AV

CY7C0241AV/0251AV/036AV

3.3V 4K/8K/16K x 16/18 Dual-Port Static RAM

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: ICC = 115 mA (typical)

❐Standby: ISB3 = 10 μA (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

Logic Block Diagram

R/WL

UBL

CEL

LBL

OEL

IO		–IO		[2]	8/9
				15/17L
	8/9L				8/9
IO	0L	–IO	[3]
			7/8L

IO

Control

IO

Control

R/WR

UBR

CER

LBR

OER

8/9[2]

IO8/9L–IO15/17R

8/9[3]

IO0L–IO7/8R

12/13/14

12/13/14

A0L–A[4]11/1213L

Address

True Dual-Ported

Address

A0R–A[4]11/12/13R

Decode

RAM Array

Decode

[4]

[4]

12/13/14

12/13/14

A0L–A11/12/13L

A0R–A11/12/13R

CE

Interrupt

CER

L

OE

Semaphore

OE

R

L

Arbitration

R/W

R/W

R

L

SEM

L

SEM

R

[5]

[5]

BUSY

L

BUSY

R

INTL

INTR

UBL

UBR

LBL

M/S

LBR

Notes

1.CY7C024AV and CY7C024BV are functionally identical.

2.IO8–IO15for x16 devices; IO9–IO17for x18 devices.

3.IO0–IO7for x16 devices; IO0–IO8for x18 devices.

4.A0–A11for 4K devices; A0–A12for 8K devices; A0–A13for 16K devices.

5.BUSY is an output in master mode and an input in slave mode.

Cypress Semiconductor Corporation • 198 Champion Court	•	San Jose, CA 95134-1709	•	408-943-2600
Document #: 38-06052 Rev. *J		Revised December 10, 2008

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