EEWORLDEEWORLDEEWORLD

Part Number

Search

IDT70121L55JG

Description
HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT
File Size128KB,15 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Download Datasheet View All

IDT70121L55JG Overview

HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT

HIGH-SPEED
2K x 9 DUAL-PORT
STATIC RAM
WITH BUSY & INTERRUPT
Features
IDT70121S/L
IDT70125S/L
High-speed access
– Commercial: 25/35/45/55ns (max.)
– Industrial: 35ns (max.)
Low-power operation
– IDT70121/70125S
Active: 675mW (typ.)
Standby: 5mW (typ.)
– IDT70121/70125L
Active: 675mW (typ.)
Standby: 1mW (typ.)
Fully asychronous operation from either port
MASTER IDT70121 easily expands data bus width to 18 bits or
more using SLAVE IDT70125 chip
On-chip port arbitration logic (IDT70121 only)
BUSY
output flag on Master;
BUSY
input on Slave
INT
flag for port-to-port communication
Battery backup operation—2V data retention
TTL-compatible, signal 5V (±10%) power supply
Available in 52-pin PLCC
Industrial temperature range (–40°C to +85°C) is available for
selected speeds
Green parts available, see ordering information
Functional Block Diagram
OE
L
CE
L
R/W
L
OE
R
CE
R
R/W
R
I/O
0L
- I/O
8L
I/O
Control
BUSY
L
A
10L
A
0L
(1,2)
I/O
0R
-I/O
8R
I/O
Control
BUSY
R
Address
Decoder
11
(1,2)
MEMORY
ARRAY
11
Address
Decoder
A
10R
A
0R
CE
L
OE
L
R/W
L
ARBITRATION
INTERRUPT
LOGIC
CE
R
OE
R
R/W
R
INT
L
(2)
INT
R
2654 drw 01
(2)
NOTES:
1. 70121 (MASTER):
BUSY
is non-tri-stated push-pull output.
70125 (SLAVE):
BUSY
is input.
2.
INT
is non-tri-stated push-pull output.
APRIL 2006
1
©2006 Integrated Device Technology, Inc.
DSC 2654/10
Urgently hiring: AGV solution planning engineer
Urgently hiring: AGV solution planning engineerJob description: 1. Responsible for preliminary technical exchanges with domestic and foreign customers, understanding and guiding customer needs. 2. Res...
西瓜籽 Robotics Development
The serial port driver can only receive 16 bytes, and the data after 16 bytes is lost?
I transplanted the serial port driver under wince. When I finished writing the test, it was all within 16 bytes, and the sending and receiving were normal. Now every time the PC sends more than 16 byt...
beck21 Embedded System
Continue code collection (2)
The last code encyclopedia post was already 8 pages long, so I decided to write a new post. I hope to write more concise and convincing next time. :)...
辛昕 Programming Basics
Improve your basic knowledge of embedded systems
As the Internet of Things technology is booming, embedded development has regained the attention of IT professionals. So, what is an embedded system? What are the components of an embedded system? Wha...
Aguilera DSP and ARM Processors
【FAQ】Microchip Live: Simplifying security application design with dsPIC33/PIC24 and ATECC608 devices
Live Topic : Simplifying Security Application Design with dsPIC33/PIC24 and ATECC608 Devices | Microchip Security Solutions Series Seminar No. 15Content Introduction: Learn how the hardware code prote...
EEWORLD社区 Energy Infrastructure?
C pointer learning, need guidance!
I am a newbie and I am not very good at pointers. Should I study "C and Pointers" or learn by reading code? ? ? I hope the experts can give me some advice! Thank you very much:)...
king_mcu Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 436  772  2363  757  732  9  16  48  15  27 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号