Datasheet > 70V19L25PF

70V19L25PF

更新时间： 2024-11-28 06:24:03

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
17页	154K
描述
TQFP-100, Tray

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中文翻译

获取价格

数据手册

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70V19L25PF 数据手册

HIGH-SPEED 3.3V

128K x 9 DUAL-PORT

STATIC RAM

IDT70V19L

Features

◆

True Dual-Ported memory cells which allow simultaneous

access of the same memory location

High-speed access

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

M/S = VIL for BUSY input on Slave

Busy and Interrupt Flags

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

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

for selected speeds

◆

– Commercial:15/20ns (max.)

– Industrial:20ns (max.)

Low-power operation

◆

– IDT70V19L

Active: 440mW (typ.)

Standby: 660µW (typ.)

Dual chip enables allow for depth expansion without

external logic

IDT70V19 easily expands data bus width to 18 bits or

more using the Master/Slave select when cascading more

than one device

◆

Functional Block Diagram

R/W_L

CE0L

CE1L

R/W_R

CE0

CE1R

OE_L

OE_R

I/O

Control

I/O

Control

0-8L

I/O

0-8R

I/O

(1,2)

BUSY

128Kx9

MEMORY

ARRAY

70V19

16L

16R

Address

Decoder

Address

Decoder

ARBITRATION

INTERRUPT

SEMAPHORE

LOGIC

CE _0L

CE_1L

CE_0R

CE_1R

OE_R

R/W_L

R/W

SEM

INT

SEM

(2)

INT

M/S ⁽¹⁾

4853 drw 01

NOTES:

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

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

SEPTEMBER 2003

DSC-4853/4

12 3 4 5 6 7...17

中文翻译

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