71421LA55J

Obsolete

Renesas Electronics Corporation

IC SRAM 16KBIT PARALLEL 52PLCC

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DocumentsDatasheet 71321/421 Datasheet

71421LA55J

Obsolete

Renesas Electronics Corporation

IC SRAM 16KBIT PARALLEL 52PLCC

Deep-Dive with AI

DocumentsDatasheet 71321/421 Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	71421LA55J

Access Time	55 ns
Memory Format	SRAM
Memory Interface	Parallel
Memory Organization	2K x 8
Memory Size	16 Kbit
Memory Type	Volatile
Mounting Type	Surface Mount
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	52-LCC (J-Lead)
Supplier Device Package	52-PLCC (19.13x19.13)
Technology	SRAM - Dual Port, Asynchronous
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V
Write Cycle Time - Word, Page [custom]	55 ns
Write Cycle Time - Word, Page [custom]	55 ns

71421LA Series

2K x 8 Dual-Port RAM w/Int

Part	Access Time	Mounting Type	Memory Type	Write Cycle Time - Word, Page	Memory Format	Memory Interface	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Technology	Memory Size	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]	Memory Organization	Write Cycle Time - Word, Page [custom]	Write Cycle Time - Word, Page [custom]
Renesas Electronics Corporation 71421LA35PF8	35 ns	Surface Mount	Volatile	35 ns	SRAM	Parallel	70 °C	0 °C	64-LQFP	SRAM - Dual Port Asynchronous	16 Kbit	64-TQFP	4.5 V	5.5 V	2K x 8
Renesas Electronics Corporation 71421SA55J	55 ns	Surface Mount	Volatile		SRAM	Parallel	70 °C	0 °C	52-LCC (J-Lead)	SRAM - Dual Port Asynchronous	16 Kbit	52-PLCC (19.13x19.13)	4.5 V	5.5 V	2K x 8	55 ns	55 ns
Renesas Electronics Corporation 71421SA20PF8	20 ns	Surface Mount	Volatile	20 ns	SRAM	Parallel	70 °C	0 °C	64-LQFP	SRAM - Dual Port Asynchronous	16 Kbit	64-TQFP	4.5 V	5.5 V	2K x 8
Renesas Electronics Corporation 71421LA25PFGI8	25 ns	Surface Mount	Volatile	25 ns	SRAM	Parallel	85 °C	-40 °C	64-LQFP	SRAM - Dual Port Asynchronous	16 Kbit	64-TQFP	4.5 V	5.5 V	2K x 8
Renesas Electronics Corporation 71421LA4J8		Surface Mount	Volatile		SRAM	Parallel	70 °C	0 °C	52-LCC (J-Lead)	SRAM - Dual Port Asynchronous	16 Kbit	52-PLCC (19.13x19.13)	4.5 V	5.5 V	2K x 8
Renesas Electronics Corporation 71421SA25J	25 ns	Surface Mount	Volatile	25 ns	SRAM	Parallel	70 °C	0 °C	52-LCC (J-Lead)	SRAM - Dual Port Asynchronous	16 Kbit	52-PLCC (19.13x19.13)	4.5 V	5.5 V	2K x 8
Renesas Electronics Corporation 71421LA55J	55 ns	Surface Mount	Volatile		SRAM	Parallel	70 °C	0 °C	52-LCC (J-Lead)	SRAM - Dual Port Asynchronous	16 Kbit	52-PLCC (19.13x19.13)	4.5 V	5.5 V	2K x 8	55 ns	55 ns
Renesas Electronics Corporation 71421LA35PF	35 ns	Surface Mount	Volatile	35 ns	SRAM	Parallel	70 °C	0 °C	64-LQFP	SRAM - Dual Port Asynchronous	16 Kbit	64-TQFP	4.5 V	5.5 V	2K x 8
Renesas Electronics Corporation 71421SA55PF8	55 ns	Surface Mount	Volatile		SRAM	Parallel	70 °C	0 °C	64-LQFP	SRAM - Dual Port Asynchronous	16 Kbit	64-TQFP	4.5 V	5.5 V	2K x 8	55 ns	55 ns
Renesas Electronics Corporation 71421LA20JG	20 ns	Surface Mount	Volatile	20 ns	SRAM	Parallel	70 °C	0 °C	52-LCC (J-Lead)	SRAM - Dual Port Asynchronous	16 Kbit	52-PLCC (19.13x19.13)	4.5 V	5.5 V	2K x 8

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

71421LA Series

The 71421 is a high-speed 2K x 8 Dual-Port Static RAM with internal interrupt logic for interprocessor communications. It is designed to be used as a "SLAVE" Dual-Port RAM together with the 71321 "MASTER" Dual-Port in 16-bit-or-more word width systems which would result in full-speed, error free operation without the need for additional discrete logic. An automatic power down feature, controlled by CE, permits the on chip circuitry of each port to enter a very low standby power mode.