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参数资料
型号： SN54HC139FKR
厂商： TEXAS INSTRUMENTS INC
元件分类： 编、解码器及复用、解复用
英文描述： HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CQCC20
封装： CERAMIC, LCC-20
文件页数： 1/9页
文件大小： 185K
代理商： SN54HC139FKR
SN54HC139, SN74HC139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SCLS108B – DECEMBER 1982 – REVISED MAY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Designed Specifically for High-Speed
Memory Decoders and Data Transmission
Systems
D Incorporate Two Enable Inputs to Simplify
Cascading and/or Data Reception
D Package Options Include Plastic
Small-Outline (D), Thin Shrink
Small-Outline (PW), and Ceramic Flat (W)
Packages, Ceramic Chip Carriers (FK), and
Standard Plastic (N) and Ceramic (J)
300-mil DIPs
description
The ’HC139 are designed for high-performance
memory-decoding or data-routing applications
requiring very short propagation delay times. In
high-performance
memory
systems,
these
decoders can minimize the effects of system
decoding. When employed with high-speed
memories utilizing a fast enable circuit, the delay
time of these decoders and the enable time of the
memory are usually less than the typical access
time of the memory. This means that the effective
system delay introduced by the decoders is
negligible.
The ’HC139 comprise two individual 2-line to
4-line decoders in a single package. The
active-low enable (G) input can be used as a data
line
in
demultiplexing
applications.
These
decoders / demultiplexers feature fully buffered
inputs, each of which represents only one
normalized load to its driving circuit.
The SN54HC139 is characterized for operation over the full military temperature range of –55
°C to 125°C. The
SN74HC139 is characterized for operation from –40
°C to 85°C.
FUNCTION TABLE
INPUTS
OUTPUTS
G
SELECT
OUTPUTS
G
B
A
Y0
Y1
Y2
Y3
H
X
H
L
LL
HH
H
L
HH
LH
H
L
H
LH
HLH
L
H
L
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
32 1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
2A
2B
NC
2Y0
2Y1
1B
1Y0
NC
1Y1
1Y2
1A
1G
NC
2Y3
2Y2
V
2G
1Y3
GND
NC
SN54HC139 . . . FK PACKAGE
(TOP VIEW)
CC
NC – No internal connection
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
VCC
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
SN54HC139 ...J OR W PACKAGE
SN74HC139 . . . D, N, OR PW PACKAGE
(TOP VIEW)
Copyright
1997, 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.
相关PDF资料
PDF描述
SN54HC139WR HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDFP16
SN54HC139FK HC/UH SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CQCC20
SN54HC14J-00 HC/UH SERIES, HEX 1-INPUT INVERT GATE, CDIP14
SN74HC14DR-00 HC/UH SERIES, HEX 1-INPUT INVERT GATE, PDSO14
SN54HC14WR HC/UH SERIES, HEX 1-INPUT INVERT GATE, CDFP14
相关代理商/技术参数
参数描述
SN54HC139J 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Dual 2-to-4 16-Pin CDIP Tube 制造商:Texas Instruments 功能描述:DECODER/DEMLTPLXR DUAL 2-TO-4 16CDIP - Rail/Tube
SN54HC148J 制造商:Texas Instruments 功能描述:PRIORITY ENCODER
SN54HC14J 制造商:Texas Instruments 功能描述:Inverter Schmitt Trigger 6-Element CMOS 14-Pin CDIP Tube 制造商:Texas Instruments 功能描述:INVERTER SCHMITT TRIGGER 6-ELEM CMOS 14CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:HEX SCHMITT-TRIGGER INVERTER 制造商:Texas Instruments 功能描述:HEX SCHMITT-TRIGGER INVERTER*NIC*
SN54HC151J 制造商:Texas Instruments 功能描述:1-OF-8 DATA SELECT/MULTIPLEXER - Rail/Tube
SN54HC153J 制造商:Texas Instruments 功能描述:Multiplexer 1-Element CMOS 8-IN 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:MLTPLXR 1-ELEM CMOS 8-IN 16CDIP - Rail/Tube
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