MILITARY AND COMMERCIAL TEMPERATURE RANGES

DECEMBER 1995

©1996 Integrated Device Technology, Inc.

DSC-2795/5

7.02

1

FEATURES

• High-density 512K CMOS Dual-Port RAM module

• Fast access times

—Commercial: 30, 35ns

—Military: 40, 45ns

• Fully asynchronous read/write operation from either port

• Easy to expand data bus width to 64 bits or more using

the Master/Slave function

• Separate byte read/write signals for byte control

• On-chip port arbitration logic

•

INT flag for port-to-port communication

• Full on-chip hardware support of semaphore signaling

between ports

• Surface mounted fine pitch (25 mil) LCC packages allow

through-hole module to fit into 121 pin PGA footprint

• Single 5V (

±10%) power supply

• Inputs/outputs directly TTL-compatible

DESCRIPTION

The IDT7M1002 is a 16K x 32 high-speed CMOS Dual-Port

Static RAM Module constructed on a co-fired ceramic sub-

strate using four 16K x 8 (IDT7006) Dual-Port Static RAMs in

surface-mounted LCC packages. The IDT7M1002 module is

designed to be used as stand-alone 512K Dual-Port RAM or

as a combination Master/Slave Dual-Port RAM for 64-bit or

more word width systems. Using the IDT Master/Slave ap-

proach in such system applications results in full-speed, error-

free operation without the need for additional discrete logic.

The module provides two independent ports with separate

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

asynchronous access for reads or writes to any location in

memory. System performance is enhanced by facilitating

port-to-port communication via additional control signals

SEM

and

INT.

The IDT7M1002 module is packaged in a ceramic 121 pin

PGA (Pin Grid Array)1.35 inches on a side. Maximum access

times as fast as 30ns are available over the commercial

temperature range and 40ns over the military temperature

range.

All IDT military modules are constructed with semiconduc-

tor components manufactured in compliance with the latest

revision of MIL-STD-883, Class B making them ideally suited

to applications demanding the highest level of performance

and reliability.

16K x 32 CMOS

DUAL-PORT STATIC RAM

MODULE

IDT7M1002

PGA

TOP VIEW

12

34

5

6

7

8

910

11

12

13

2795 drw 01

L_CS

L_OE

R_OE

R_CS

R_I/O(28)

R_I/O(24)

R_I/O(26)

R_I/O(30)

L_R/W(3)

L_I/O(30)

L_I/O(28)

L_I/O(26)

L_I/O(24)

A

L_I/O(23)

L_R/W(4)

R_I/O(27)

R_I/O(23)

R_I/O(25)

R_I/O(29)

R_I/O(31)

R_A(0)

L_A(0)

L_I/O(31)

L_I/O(29)

L_I/O(27)

L_I/O(25)

B

GND

R_I/O(21)

R_I/O(22)

R_A(3)

R_A(2)

R_A(1)

GND

L_A(1)

L_A(2)

L_A(3)

VCC

L_I/O(22)

L_I/O(21)

C

R_A(4)

R_I/O(19)

R_I/O(20)

GND

L_A(4)

L_I/O(20)

L_I/O(19)

D

R_A(5)

R_I/O(17)

R_I/O(18)

L_A(5)

L_I/O(18)

L_I/O(17)

E

L_SEM

R_SEM

L_I/O(16)

L_A(6)

R_A(6)

R_I/O(16)

F

L_BUSY

L_INT

R_INT

R_BUSY

GND

GND

G

L_A(7)

R_A(7)

R_R/W (2)

R_R/W (1)

L_R/W(1)

L_R/W(2)

H

L_I/O(15)

L_I/O(14)

L_A(8)

R_I/O(15)

R_I/O(14)

R_A(8)

I

L_I/O(13)

L_I/O(12)

L_A(9)

R_I/O(13)

R_A(9)

R_I/O(12)

J

M/S

L_I/O(11)

GND

L_A(10)

R_I/O(11)

VCC

GND

R_A(10)

R_A(11)

R_A(12)

GND

L_A(12)

L_A(11)

K

L_I/O(10)

L_I/O(8)

L_I/O(6)

R_I/O(10)

R_I/O(6)

R_I/O(8)

R_R/W (4)

R_I/O(4)

R_I/O(2)

R_A(13)

L_A(13)

L_I/O(2)

L_I/O(4)

L

L_I/O(9)

L_I/O(7)

L_I/O(5)

R_I/O(9)

R_I/O(5)

R_I/O(7)

R_R/W (3)

R_I/O(3)

R_I/O(1)

R_I/O(0)

L_I/O(0)

L_I/O(1)

L_I/O(3)

M

PIN CONFIGURATION

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

Integrated Device Technology, Inc.