SN74HC139-Q1 Datasheet, PDF (1/9 Pages) Texas Instruments – DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER

SN74HC139-Q1
DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
D Qualified for Automotive Applications
D Targeted Specifically for High-Speed
Memory Decoders and Data-Transmission
Systems
D Wide Operating Voltage Range of 2 V to 6 V
D Outputs Can Drive up to Ten LSTTL Loads
D Low Power Consumption, 80-µA Max I_CC
D Typical t_pd = 10 ns
D ±4-mA Output Drive at 5 V
SCLS598B − NOVEMBER 2004 – REVISED APRIL 2008
D Low Input Current of 1 µA Max
D Incorporate Two Enable Inputs to Simplify
Cascading and/or Data Reception
D ESD Protection Level per AEC-Q100
Classification
− 2000-V (H2) Human-Body Model
− 200-V (M3) Machine Model
− 1000-V (C5) Charged-Device Model
D OR PW PACKAGE
(TOP VIEW)
description/ordering information
The SN74HC139 device is designed for
high-performance memory-decoding or data-routing
applications requiring very short propagation delay
times. In high-performance memory systems, this
decoder can minimize the effects of system
decoding. When employed with high-speed
memories utilizing a fast enable circuit, the delay time
of this decoder and the enable time of the memory
usually are less than the typical access time of the
memory. This means that the effective system delay
introduced by the decoder is negligible.
1G 1
1A 2
1B 3
1Y0 4
1Y1 5
1Y2 6
1Y3 7
GND 8
16 V_CC
15 2G
14 2A
13 2B
12 2Y0
11 2Y1
10 2Y2
9 2Y3
The SN74HC139 device comprises 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. This decoder/demultiplexer features
fully buffered inputs, each of which represents only one normalized load to its driving circuit.
ORDERING INFORMATION^{
T_A
PACKAGE^‡
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC − D
−40°C to 125°C
TSSOP − PW
Reel of 2500
Reel of 2000
SN74HC139QDRQ1
SN74HC139QPWRQ1
HC139Q
HC139Q
† _{For the most current package and ordering information, see the Package Option Addendum at the end of this}
document, or see the TI web site at http://www.ti.com.
‡ _{Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.}
FUNCTION TABLE
INPUTS
SELECT
G
B
A
H
X
X
L
L
L
OUTPUTS
Y0 Y1 Y2 Y3
H
H
H
H
L
H
H
H
L
L
H
H
L
H
H
L
H
L
H
H
L
H
L
H
H
H
H
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.
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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