5秒后页面跳转
71421 PDF预览

71421

更新时间: 2024-11-17 14:58:11
品牌 Logo 应用领域
瑞萨 - RENESAS /
页数 文件大小 规格书
19页 505K
描述
2K x 8 Dual-Port RAM w/Int

71421 数据手册

 浏览型号71421的Datasheet PDF文件第2页浏览型号71421的Datasheet PDF文件第3页浏览型号71421的Datasheet PDF文件第4页浏览型号71421的Datasheet PDF文件第5页浏览型号71421的Datasheet PDF文件第6页浏览型号71421的Datasheet PDF文件第7页 
HIGH SPEED  
2K X 8 DUAL-PORT  
STATIC RAM  
71321SA/LA  
71421SA/LA  
WITH INTERRUPTS  
Features  
MASTER IDT71321 easily expands data bus width to 16-or-  
more-bits using SLAVE IDT71421  
High-speed access  
– Commercial: 20/35/55ns (max.)  
– Industrial: 25/55ns (max.)  
Low-power operation  
On-chip port arbitration logic (IDT71321 only)  
BUSY output flag on IDT71321; BUSY input on IDT71421  
Fully asynchronous operation from either port  
Battery backup operation – 2V data retention (LA only)  
TTL-compatible, single 5V ±10% power supply  
Available in 52-Pin PLCC, 52-Pin STQFP, 64-Pin TQFP, and  
64-Pin STQFP  
Industrial temperature range (–40°C to +85°C) is available  
for selected speeds  
Green parts available, see ordering information  
– IDT71321/IDT71421SA  
Active: 325mW (typ.)  
Standby: 5mW (typ.)  
– IDT71321/421LA  
Active: 325mW (typ.)  
Standby: 1mW (typ.)  
Two INT flags for port-to-port communications  
FunctionalBlockDiagram  
OER  
OEL  
CE  
L
CE  
R/W  
R
R/W  
L
R
I/O0L- I/O7L  
I/O0R-I/O7R  
I/O  
I/O  
Control  
Control  
BUSY (1,2)  
L
(1,2)  
R
BUSY  
A
10L  
A
10R  
Address  
Decoder  
MEMORY  
ARRAY  
Address  
Decoder  
A
0L  
A0R  
11  
11  
ARBITRATION  
and  
INTERRUPT  
LOGIC  
CE  
OE  
L
L
CE  
OE  
R/W  
R
R
R
R/W  
L
(2)  
R
(2)  
L
INT  
INT  
2691 drw 01  
NOTES:  
1. IDT71321(MASTER):BUSYisopendrainoutputandrequirespullupresistorof270Ω.  
IDT71421 (SLAVE): BUSY is input.  
2. Open drain output: requires pullup resistor of 270Ω.  
SEPTEMBER 2019  
1
DSC-2691/17  

与71421相关器件

型号 品牌 获取价格 描述 数据表
7142-12-1000 COTO

获取价格

Electromechanical Relay
7142-12-1001 COTO

获取价格

Dry Reed Relay, DPDT, Momentary, 0.024A (Coil), 12VDC (Coil), 288mW (Coil), 0.25A (Contact
7142-12-1010 COTO

获取价格

Electromechanical Relay
7142-12-1011 COTO

获取价格

Electromechanical Relay
7142-12-1100 COTO

获取价格

Electromechanical Relay
7142-12-1101 ETC

获取价格

7142-12-1110 COTO

获取价格

Electromechanical Relay
7142-12-1111 ETC

获取价格

71421LA20JG IDT

获取价格

HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM
71421LA20JG8 IDT

获取价格

HIGH SPEED 2K X 8 DUAL-PORT STATIC RAM