IDT7205S120 View Datasheet(PDF) - Integrated Device Technology

Part Name

Description

Manufacturer

IDT7205S120

CMOS ASYNCHRONOUS FIFO 2048 x 9, 4096 x 9, 8192 x 9 and 16384 x 9

Integrated Device Technology 

Integrated Device Technology, Inc.

CMOS ASYNCHRONOUS FIFO

2048 x 9, 4096 x 9,

8192 x 9 and 16384 x 9

IDT7203

IDT7204

IDT7205

IDT7206

FEATURES:

• First-In/First-Out Dual-Port memory

• 2048 x 9 organization (IDT7203)

• 4096 x 9 organization (IDT7204)

• 8192 x 9 organization (IDT7205)

• 16384 x 9 organization (IDT7206)

• High-speed: 12ns access time

• Low power consumption

— Active: 770mW (max.)

— Power-down: 44mW (max.)

• Asynchronous and simultaneous read and write

• Fully expandable in both word depth and width

• Pin and functionally compatible with IDT720X family

• Status Flags: Empty, Half-Full, Full

• Retransmit capability

• High-performance CMOS technology

• Military product compliant to MIL-STD-883, Class B

• Standard Military Drawing for #5962-88669 (IDT7203),

5962-89567 (IDT7203), and 5962-89568 (IDT7204) are

listed on this function

• Industrial temperature range (-40oC to +85oC) is avail-

able, tested to military electrical specifications

.

DESCRIPTION:

The IDT7203/7204/7205/7206 are dual-port memory buff-

ers with internal pointers that load and empty data on a first-

in/first-out basis. The device uses Full and Empty flags to

prevent data overflow and underflow and expansion logic to

allow for unlimited expansion capability in both word size and

depth.

W R Data is toggled in and out of the device through the use of

the Write ( ) and Read ( ) pins.

The devices 9-bit width provides a bit for a control or parity

RT at the user’s option. It also features a Retransmit ( ) capa-

bility that allows the read pointer to be reset to its initial position

RT when is pulsed LOW. A Half-Full Flag is available in the

single device and width expansion modes.

The IDT7203/7204/7205/7206 are fabricated using IDT’s

high-speed CMOS technology. They are designed for appli-

cations requiring asynchronous and simultaneous read/writes

in multiprocessing, rate buffering, and other applications.

Military grade product is manufactured in compliance with

the latest revision of MIL-STD-883, Class B.

FUNCTIONAL BLOCK DIAGRAM

WRITE

W

CONTROL

DATA INPUTS

(D0 –D8)

WRITE

POINTER

RAM ARRAY

2048 x 9

4096 x 9

8192 x 9

16384 x 9

READ

POINTER

READ

R

CONTROL

THREE-

STATE

BUFFERS

DATA OUTPUTS

(Q 0 –Q8 )

FLAG

LOGIC

EF

FF

RS

RESET

LOGIC

/ FL RT

EXPANSION

XI

LOGIC

/ XO HF

2661 drw 01

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

MILITARY AND COMMERCIAL TEMPERATURE RANGES

©1996 Integrated Device Technology, Inc.

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

5.04

DECEMBER 1996

DSC-2661/9

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