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参数资料
型号： SN74AS879DW
厂商： TEXAS INSTRUMENTS INC
元件分类： 总线收发器
英文描述： AS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO24
封装： PLASTIC, SO-24
文件页数： 1/8页
文件大小： 112K
代理商： SN74AS879DW
SN54ALS878A, SN54ALS879A, SN54AS878, SN54AS879
SN74ALS878A, SN74ALS879A, SN74AS878, SN74AS879
DUAL 4BIT DTYPE EDGETRIGGERED FLIPFLOPS WITH 3STATE OUTPUTS
SDAS062A D2661, APRIL 1982 REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
Copyright
1986, Texas Instruments Incorporated
1
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
Synchronous Clear
Package Options Include Plastic Small
Outline Packages, Both Plastic and
Ceramic Chip Carriers, and Standard
Plastic and Ceramic 300-mil DIPs
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.
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.
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.
1CLR
1OC
18
14 15
17
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1CLR
1OC
1D1
1D2
1D3
1D4
2D1
2D2
2D3
2D4
2OC
GND
VCC
1CLK
1Q1
1Q2
1Q3
1Q4
2Q1
2Q2
2Q3
2Q4
2CLK
2CLR
SN54ALS878A, SN54AS878 . . . JT PACKAGE
SN74ALS878A, SN74AS878 . . . DW OR NT PACKAGE
(TOP VIEW)
32 1
13
5
6
7
8
9
10
11
1Q2
1Q3
1Q4
NC
2Q1
Q22
2Q3
1D2
1D3
1D4
NC
2D1
2D2
2D3
4
16
2OC
GND
NC
2CLR
2CLK
2Q4
1D1
1OC
1CLR
NC
SN54ALS878A, SN54AS878 . . . FK PACKAGE
SN74ALS878A, SN74AS878 . . . FN PACKAGE
(TOP VIEW)
28 27 26
25
24
23
22
21
20
19
12
2D4
1Q1
CC
V
18
14 15
17
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1CLR
1OC
1D1
1D2
1D3
1D4
2D1
2D2
2D3
2D4
2OC
GND
VCC
1CLK
1Q1
1Q2
1Q3
1Q4
2Q1
2Q2
2Q3
2Q4
2CLK
2CLR
SN54ALS879A, SN54AS879 . . . JT PACKAGE
SN74ALS879A, SN74AS879 . . . DW OR NT PACKAGE
(TOP VIEW)
32 1
13
5
6
7
8
9
10
11
1Q2
1Q3
1Q4
NC
2Q1
2Q2
2Q3
1D2
1D3
1D4
NC
2D1
2D2
2D3
4
16
2OC
GND
NC
2CLR
2CLK
2G4
1D1
NC
SN54ALS879A, SN54AS879 . . . FK PACKAGE
SN74ALS879A, SN74AS879 . . . FN PACKAGE
(TOP VIEW)
28 27 26
25
24
23
22
21
20
19
12
2D4
1CLK
1Q1
CC
V
NC No internal connection
1CLK
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.
相关PDF资料
PDF描述
SN54ALS878AFK ALS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CQCC28
SN74ALS878AFN ALS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PQCC28
SN74AS879NT AS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP24
SN54AS879JT AS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDIP24
SN54ALS879AJT ALS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CDIP24
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SN74AS885DWE4 功能描述:校验器 IC Octal Magnitude Comparators RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel
SN74AS885DWG4 功能描述:校验器 IC Octal Magnitude Comparators RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel
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