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SN74AS878DW PDF预览

SN74AS878DW

更新时间: 2024-10-01 14:44:51
品牌 Logo 应用领域
德州仪器 - TI 驱动光电二极管逻辑集成电路触发器
页数 文件大小 规格书
8页 103K
描述
Dual 4-Bit D-Type Edge-Triggered Flip-Flops 24-SOIC 0 to 70

SN74AS878DW 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:PLASTIC, SO-24针数:24
Reach Compliance Code:not_compliant风险等级:5.92
Is Samacsys:N其他特性:WITH SYNCHRONOUS CLEAR
系列:ASJESD-30 代码:R-PDSO-G24
长度:15.4 mm负载电容(CL):50 pF
逻辑集成电路类型:BUS DRIVER位数:4
功能数量:2端口数量:2
端子数量:24最高工作温度:70 °C
最低工作温度:输出特性:3-STATE
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP24,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):NOT SPECIFIED最大电源电流(ICC):155 mA
传播延迟(tpd):10.5 ns认证状态:Not Qualified
座面最大高度:2.65 mm子类别:FF/Latches
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:TTL温度等级:COMMERCIAL
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
触发器类型:POSITIVE EDGE宽度:7.5 mm
Base Number Matches:1

SN74AS878DW 数据手册

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SN54ALS878A, SN54ALS879A, SN54AS878, SN54AS879  
SN74ALS878A, SN74ALS879A, SN74AS878, SN74AS879  
DUAL 4-BIT D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS  
SDAS062A – D2661, APRIL 1982 – REVISED MAY 1986  
3-State Bus Driving Outputs  
Full Parallel-Access for Loading  
Buffered Control Inputs  
Choice of True or Inverting Logic  
’ALS878A, ’AS878 True Outputs  
’ALS879A, ’AS879 Inverting Outputs  
SN54ALS878A, SN54AS878 . . . JT PACKAGE  
SN74ALS878A, SN74AS878 . . . DW OR NT PACKAGE  
(TOP VIEW)  
1CLR  
1OC  
1D1  
1D2  
1D3  
1D4  
2D1  
2D2  
2D3  
2D4  
2OC  
GND  
V
CC  
1
2
3
4
5
6
7
8
9
24  
23  
22  
21  
20  
19  
18  
1CLK  
1Q1  
1Q2  
1Q3  
1Q4  
2Q1  
Synchronous Clear  
17 2Q2  
Package Options Include Plastic Small  
Outline Packages, Both Plastic and  
Ceramic Chip Carriers, and Standard  
Plastic and Ceramic 300-mil DIPs  
16  
2Q3  
2Q4  
2CLK  
2CLR  
10 15  
11 14  
12 13  
SN54ALS878A, SN54AS878 . . . FK PACKAGE  
SN74ALS878A, SN74AS878 . . . FN PACKAGE  
(TOP VIEW)  
Dependable Texas Instruments Quality and  
Reliability  
description  
These dual 4-bit registers feature 3-state outputs  
designed specifically for bus driving. This makes  
these devices particularly suitable for implement-  
ing buffer registers, I/O ports, bidirectional bus  
drivers, and working registers.  
4
3 2 1 28 27 26  
1D2  
1D3  
1D4  
NC  
5
6
7
8
9
25  
24  
1Q2  
1Q3  
23 1Q4  
22 NC  
2D1  
2Q1  
Q22  
2Q3  
21  
20  
19  
2D2 10  
2D3  
11  
12  
1314  
16 1718  
The dual 4-bit edge-triggered flip-flops enter data  
on the low-to-high transition of the clock (1CLK  
and 2CLK). All types have individual synchronous  
clear inputs and output control pins for each group  
of 4-bit registers.  
15  
SN54ALS879A, SN54AS879 . . . JT PACKAGE  
SN74ALS879A, SN74AS879 . . . DW OR NT PACKAGE  
(TOP VIEW)  
The SN54ALS’ and SN54AS’ devices are  
characterized for operation over the full military  
temperature range of 55°C to 125°C. The  
SN74ALS’ and SN74AS’ devices are character-  
ized for operation from 0°C to 70°C.  
V
1CLR  
1OC  
1D1  
1D2  
1D3  
1D4  
2D1  
2D2  
2D3  
2D4  
2OC  
CC  
1
2
3
4
5
6
7
8
9
24  
23  
22  
21  
20  
19  
18  
17  
16  
1CLK  
1Q1  
1Q2  
1Q3  
1Q4  
2Q1  
2Q2  
2Q3  
2Q4  
2CLK  
2CLR  
10 15  
11 14  
GND 12 13  
SN54ALS879A, SN54AS879 . . . FK PACKAGE  
SN74ALS879A, SN74AS879 . . . FN PACKAGE  
(TOP VIEW)  
4
3 2 1 28 27 26  
25  
1D2  
1D3  
1D4  
NC  
5
6
7
8
9
1Q2  
1Q3  
24  
23 1Q4  
22 NC  
2D1  
2Q1  
2Q2  
2Q3  
21  
20  
19  
2D2 10  
2D3  
11  
121314  
161718  
15  
NC – No internal connection  
Copyright 1986, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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