Datasheet > IDT71342LA

IDT71342LA

更新时间： 2024-11-22 23:01:11

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
13页	147K
描述
HIGH-SPEED 4K x 8 DUAL-PORT STATIC RAM WITH SEMAPHORE

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IDT71342LA 数据手册

IDT71342SA/LA

HIGH-SPEED

4K x 8 DUAL-PORT

STATIC RAM WITH SEMAPHORE

Integrated Device Technology, Inc.

FEATURES:

DESCRIPTION:

• High-speed access

TheIDT71342isanextremelyhigh-speed4Kx8Dual-Port

Static RAM with full on-chip hardware support of semaphore

signalling between the two ports.

— Commercial: 20/25/35/45/55/70ns (max.)

• Low-power operation

— IDT71342SA

TheIDT71342providestwoindependentportswithseparate

control, address, and I/O pins that permit independent,

asynchronous access for reads or writes to any location in

memory. To assist in arbitrating between ports, a fully

independent semaphore logic block is provided. This block

contains unassigned flags which can be accessed by either

side; however, only one side can control the flag at any time.

Active: 500mW (typ.)

Standby: 5mW (typ.)

— IDT71342LA

Active: 500mW (typ.)

Standby: 1mW (typ.)

• Fully asynchronous operation from either port

• Full on-chip hardware support of semaphore signalling An automatic power down feature, controlled by CEand SEM,

between ports

permits the on-chip circuitry of each port to enter a very low

standby power mode (both CE and SEM High).

• Battery backup operation—2V data retention

• TTL-compatible; single 5V (±10%) power supply

• Available in plastic packages

• Industrial temperature range (–40°C to +85°C) is avail-

able, tested to military electrical specifications

Fabricated using IDT’s CMOS high-performance

technology, this device typically operates on only 500mW of

power. Low-power (LA) versions offer battery backup data

retentioncapability,witheachporttypicallyconsuming200µW

from a 2V battery. The device is packaged in either a 64-pin

TQFP, thin quad plastic flatpack, or a 52-pin PLCC.

FUNCTIONAL BLOCK DIAGRAM

CER

CEL

OER

OEL

COLUMN

I/O

COLUMN

I/O

I/O0R - I/O7R

I/O0L- I/O7L

MEMORY

ARRAY

SEMAPHORE

LOGIC

SEM

LEFT SIDE

ADDRESS

DECODE

LOGIC

RIGHT SIDE

ADDRESS

DECODE

LOGIC

0R- A11R

A0L- A11L

2721 drw 01

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

COMMERCIAL TEMPERATURE RANGE

OCTOBER 1996

DSC-2721/4

For latest information contact IDT’s web site at www.idt.com or fax-on-demand at 408-492-8391.

6.05

12 3 4 5 6 7...13

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与IDT71342LA相关器件

型号	品牌	获取价格	描述	数据表
IDT71342LA20J	IDT	获取价格	HIGH-SPEED 4K x 8 DUAL-PORT STATIC RAM WITH SEMAPHORE
IDT71342LA20JG	IDT	获取价格	Dual-Port SRAM, 4KX8, 20ns, CMOS, PQCC52, PLASTIC, LCC-52
IDT71342LA20JG8	IDT	获取价格	暂无描述
IDT71342LA20JI	IDT	获取价格	HIGH SPEED 4K X 8 DUAL-PORT STATIC RAM WITH SEMAPHORE
IDT71342LA20PF	IDT	获取价格	HIGH-SPEED 4K x 8 DUAL-PORT STATIC RAM WITH SEMAPHORE
IDT71342LA20PFG	IDT	获取价格	Dual-Port SRAM, 4KX8, 20ns, CMOS, PQFP64, PLASTIC, TQFP-64
IDT71342LA20PFG8	IDT	获取价格	Dual-Port SRAM, 4KX8, 20ns, CMOS, PQFP64, PLASTIC, TQFP-64
IDT71342LA20PFI	IDT	获取价格	HIGH SPEED 4K X 8 DUAL-PORT STATIC RAM WITH SEMAPHORE
IDT71342LA25J	IDT	获取价格	HIGH-SPEED 4K x 8 DUAL-PORT STATIC RAM WITH SEMAPHORE
IDT71342LA25J8	IDT	获取价格	Dual-Port SRAM, 4KX8, 25ns, CMOS, PQCC52, PLASTIC, LCC-52

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