Datasheet > 7008

7008

更新时间： 2023-12-20 18:45:45

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
21页	274K
描述
64K x 8 Dual-Port RAM

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数据手册

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7008 数据手册

HIGH-SPEED

64K x 8 DUAL-PORT

7008S/L

STATIC RAM

Features

◆

True Dual-Ported memory cells which allow simultaneous

reads of the same memory location

High-speed access

IDT7008 easily expands data bus width to 16 bits or

more using the Master/Slave select when cascading more

than one device

M/S = VIH for BUSY output flag on Master,

M/S = VIL for BUSY input on Slave

Interrupt Flag

On-chip port arbitration logic

Full on-chip hardware support of semaphore signaling

between ports

Fully asynchronous operation from either port

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

Available in 84-pin PGA, 84-pin PLCC, and a 100-pin TQFP

Industrial temperature range (–40°C to +85°C) is available

for selected speeds

◆

– Commercial:15/25/35/55ns(max.)

– Industrial: 20ns (max.)

Low-poweroperation

◆

– IDT7008S

Active:750mW(typ.)

Standby: 5mW (typ.)

– IDT7008L

◆

Active:750mW(typ.)

Standby: 1mW (typ.)

◆

Dual chip enables allow for depth expansion without

external logic

◆

Green parts available, see ordering information

FunctionalBlockDiagram

R/W

CE0L

CE1L

CE0R

CE1R

I/O

Control

I/O

Control

I/O0-7L

I/O0-7R

BUSY_L^(1,2)

(1,2)

BUSY

64Kx8

MEMORY

ARRAY

7008

15L

15R

Address

Decoder

Address

Decoder

ARBITRATION

INTERRUPT

SEMAPHORE

LOGIC

CE0L

CE_0R

R/W

SEM

INTL

SEM

(2)

INT

M/S⁽¹⁾

3198 drw 01

NOTES:

1. BUSY is an input as a Slave (M/S = VIL) and an output when it is a Master (M/S = VIH).

2. BUSY and INT are non-tri-state totem-pole outputs (push-pull).

Jan.05.22

12 3 4 5 6 7...21

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