Features, Selection Guide for VCC = | Cypress CYDC064B08 instruction

CYDC256B16, CYDC128B16,

CYDC064B16, CYDC128B08,

CYDC064B08

1.8V 4k/8k/16k x 16 and 8k/16k x 8 ConsuMoBL Dual-Port Static RAM

Features

•True dual-ported memory cells which allow simulta- neous access of the same memory location

•4/8/16k × 16 and 8/16k × 8 organization

•High-speed access: 40 ns

•Ultra Low operating power

—Active: ICC = 15 mA (typical) at 55 ns

—Active: ICC = 25 mA (typical) at 40 ns

—Standby: ISB3 = 2 µA (typical)

•Port-independent 1.8V, 2.5V, and 3.0V I/Os

•Lead (Pb)-free 14 x 14 x 1.4 mm 100-pin TQFP Package

•Full asynchronous operation

•Pin select for Master or Slave

•Expandable data bus to 32 bits with Master/Slave chip select when using more than one device

•On-chip arbitration logic

•On-chip semaphore logic

•Input Read Registers and Output Drive Registers

•INT flag for port-to-port communication

•Separate upper-byte and lower-byte control

•Commercial and industrial temperature ranges

	CYDC256B16, CYDC128B16,	CYDC256B16, CYDC128B16,
	CYDC064B16, CYDC128B08,	CYDC064B16, CYDC128B08,
	CYDC064B08	CYDC064B08
	-40	-55
Port I/O Voltages (P1-P2)	1.8V-1.8V	1.8V-1.8V	Unit

Maximum Access Time	40	55	ns

Typical Operating Current	25	15	mA

Typical Standby Current for ISB1	2	2	µA
Typical Standby Current for ISB3	2	2	µA

Selection Guide for VCC = 2.5V

	CYDC256B16, CYDC128B16,	CYDC256B16, CYDC128B16,
	CYDC064B16, CYDC128B08,	CYDC064B16, CYDC128B08,
	CYDC064B08	CYDC064B08
	-40	-55
Port I/O Voltages (P1-P2)	2.5V-2.5V	2.5V-2.5V	Unit

Maximum Access Time	40	55	ns

Typical Operating Current	39	28	mA

Typical Standby Current for ISB1	6	6	µA
Typical Standby Current for ISB3	4	4	µA

Selection Guide for VCC = 3.0V

	CYDC256B16, CYDC128B16,		CYDC256B16, CYDC128B16,
	CYDC064B16, CYDC128B08,		CYDC064B16, CYDC128B08,
		CYDC064B08	CYDC064B08
		-40	-55
Port I/O Voltages (P1-P2)		3.0V-3.0V	3.0V-3.0V			Unit

Maximum Access Time		40	55			ns

Typical Operating Current		49	42			mA

Typical Standby Current for ISB1		7	7			µA
Typical Standby Current for ISB3		6	6			µA
Cypress Semiconductor Corporation	•	198 Champion Court •	San Jose, CA 95134-1709	•	408-943-2600
Document #: 001-01638 Rev. *E			Revised January 25, 2007

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