Datasheet > 70V35

70V35

更新时间： 2023-12-20 18:44:10

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
26页	585K
描述
8K x 18 3.3V Dual-Port RAM

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数据手册

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70V35 数据手册

HIGH-SPEED 3.3V

8/4K x 18 DUAL-PORT

8/4K x 16 DUAL-PORT

STATIC RAM

70V35/34S/L

70V25/24S/L

Features

– IDT70V25/24S

– IDT70V25/24L

◆

Active: 400mW (typ.)

Standby: 3.3mW (typ.)

Separate upper-byte and lower-byte control for multiplexed

bus compatibility

IDT70V35/34 (IDT70V25/24) easily expands data bus width

to 36 bits (32 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

Active: 380mW (typ.)

Standby: 660μW (typ.)

True Dual-Ported memory cells which allow simultaneous

reads of the same memory location

High-speedaccess

◆

IDT70V35

– Commercial: 15ns (max.)

– Industrial:20ns

IDT70V34

– Commercial: 15ns (max.)

IDT70V25

– Commercial: 15/35ns (max.)

– Industrial:20/25ns

IDT70V24

◆

BUSY and Interrupt Flag

On-chip port arbitration logic

Full on-chip hardware support of semaphore signaling

between ports

Fully asynchronous operation from either port

LVTTL-compatible, single 3.3V (±0.3V) power supply

Available in a 100-pin TQFP (IDT70V35/34) & (IDT70V25/24),

and 84-pin PLCC (IDT70V24)

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

for selected speeds

Green parts available, see ordering information

– Commercial:15//35/55ns(max.)

– Industrial:15/20ns

Low-power operation

◆

– IDT70V35/34L

Active:415mW(typ.)

Standby: 660μW(typ.)

◆

Functional Block Diagram

R/W

UBL

(5)

I/O9R-I/O17R

I/O9L-I/O17L

I/O

Control

I/O

Control

(4)

I/O0R-I/O8R

I/O0L-I/O8L

(2,3)

BUSY

(1)

12R

(1)

12L

Address

Decoder

MEMORY

ARRAY

Address

Decoder

A0L

A0R

ARBITRATION

INTERRUPT

SEMAPHORE

LOGIC

R/W

SEM

INTR

SEM

INTL

(3)

M/S

NOTES:

5624 drw 01

1. A12 is a NC for IDT70V34 and for IDT70V24.

2. (MASTER): BUSY is output; (SLAVE): BUSY is input.

3. BUSY outputs and INT outputs are non-tri-stated push-pull.

4. I/O0x - I/O7x for IDT70V25/24.

5. I/O8x - I/O15x for IDT70V25/24.

OCTOBER 2019

DSC-5624/10

12 3 4 5 6 7...26

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