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SN74HCT138PWR Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce SN74HCT138PWR
Description  3-LINE TO 8-LINE DECODERS DEMULTIPLEXERS
Download  21 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

SN74HCT138PWR Fiches technique(HTML) 1 Page - Texas Instruments

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SN54HCT138, SN74HCT138
3LINE TO 8LINE DECODERS/DEMULTIPLEXERS
SCLS171E − MARCH 1984 − REVISED SEPTEMBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Operating Voltage Range of 4.5 V to 5.5 V
D Outputs Can Drive Up To 10 LSTTL Loads
D Low Power Consumption, 80-µA Max ICC
D Typical tpd = 17 ns
D ±4-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Inputs Are TTL-Voltage Compatible
D Designed Specifically for High-Speed
Memory Decoders and Data Transmission
Systems
D Incorporate Three Enable Inputs to Simplify
Cascading and/or Data Reception
32 1 20 19
910 11 1213
4
5
6
7
8
18
17
16
15
14
Y1
Y2
NC
Y3
Y4
C
G2A
NC
G2B
G1
SN54HCT138 ...FK PACKAGE
(TOP VIEW)
NC − No internal connection
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A
B
C
G2A
G2B
G1
Y7
GND
VCC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
SN54HCT138 ...J OR W PACKAGE
SN74HCT138 . . . D, N, NS, OR PW PACKAGE
(TOP VIEW)
description/ordering information
The ’HCT138 devices 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 times of these decoders 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 decoders is negligible.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube of 25
SN74HCT138N
SN74HCT138N
Tube of 40
SN74HCT138D
SOIC − D
Reel of 2500
SN74HCT138DR
HCT138
−40
°C to 85°C
SOIC − D
Reel of 250
SN74HCT138DT
HCT138
−40
°C to 85°C
SOP − NS
Reel of 2000
SN74HCT138NSR
HCT138
Tube of 90
SN74HCT138PW
TSSOP − PW
Reel of 2000
SN74HCT138PWR
HT138
TSSOP − PW
Reel of 250
SN74HCT138PWT
HT138
CDIP − J
Tube of 25
SNJ54HCT138J
SNJ54HCT138J
−55
°C to 125°C
CFP − W
Tube of 150
SNJ54HCT138W
SNJ54HCT138W
−55 C to 125 C
LCCC − FK
Tube of 55
SNJ54HCT138FK
SNJ54HCT138FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
 2003, Texas Instruments Incorporated
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.
On products compliant to MILPRF38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.


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