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参数资料
| 型号： | SNJ54AS873FK |
| 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, CQCC28 |
| 封装： | CERAMIC, LCC-28 |
| 文件页数： | 1/8页 |
| 文件大小： | 121K |
| 代理商： | SNJ54AS873FK |
SN54ALS873B, SN54AS873 . . . JT PACKAGE
SN74ALS873B, SN74AS873A . . . DW OR NT PACKAGE
(TOP VIEW)
SN54ALS873B, SN54AS873 . . . FK PACKAGE
(TOP VIEW)
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24
23
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16
15
14
13
1CLR
1OE
1D1
1D2
1D3
1D4
2D1
2D2
2D3
2D4
2OE
GND
VCC
1LE
1Q1
1Q2
1Q3
1Q4
2Q1
2Q2
2Q3
2Q4
2LE
2CLR
NC – No internal connection
32 1 28 27
12 13
5
6
7
8
9
10
11
25
24
23
22
21
20
19
1Q2
1Q3
1Q4
NC
2Q1
2Q2
2Q3
1D2
1D3
1D4
NC
2D1
2D2
2D3
426
14 15 16 17 18
2D4
2OE
GND
NC
2CLR
2LE
2Q4
1D1
1OE
1CLR
NC
1LE
1Q1
V
CC
SN54ALS873B, SN54AS873, SN74ALS873B, SN74AS873A
DUAL 4-BIT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SDAS036C – APRIL 1982 – REVISED SEPTEMBER 1994
Copyright
1994, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
3-State Buffer-Type Outputs Drive Bus
Lines Directly
Bus-Structured Pinout
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Plastic (NT) and
Ceramic (JT) DIPs
description
These dual 4-bit D-type latches feature 3-state
outputs designed specifically for bus driving. This
makes these devices particularly suitable for
implementing
buffer
registers,
I/O
ports,
bidirectional bus drivers, and working registers.
The dual 4-bit latches are transparent D-type
latches. While the latch-enable (LE) input is high,
the Q outputs follow the data (D) inputs in true
form, according to the function table. When LE is
low, the outputs are latched. When the clear (CLR)
input
goes
low,
the
Q
outputs
go
low
independently of LE. The outputs are in a
high-impedance state when the output-enable
(OE) input is at a high logic level.
The
SN54ALS873B
and
SN54AS873
are
characterized for operation over the full military
temperature range of – 55
°C to 125°C. The
SN74ALS873B
and
SN74AS873A
are
characterized for operation from 0
°C to 70°C.
FUNCTION TABLE
(each latch)
INPUTS
OUTPUT
OE
CLR
LE
D
Q
L
X
L
HH
H
L
HH
L
HL
X
Q0
H
X
Z
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.
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| SN54AS873FK | AS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, CQCC28 |
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| SN74AS882ADW | AS SERIES, 8-BIT LOOK-AHEAD CARRY GENERATOR, PDSO24 |
| SN74AS882AFN | AS SERIES, 8-BIT LOOK-AHEAD CARRY GENERATOR, PQCC28 |
相关代理商/技术参数 |
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|---|---|
| SNJ54AS874JT | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SNJ54AS885JT | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SNJ54AS897AGB | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SNJ54BCT125AJ | 制造商:Texas Instruments 功能描述:Buffer/Line Driver 4-CH Non-Inverting 3-ST BiCMOS 14-Pin CDIP Tube |
| SNJ54BCT2244J | 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Non-Inverting 3-ST BiCMOS 20-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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