Datasheet

 
    
SCLS066D − MARCH 1982 − 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 I
CC
D Typical t
pd
= 10 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 Two Enable Inputs to Simplify
Cascading and/or Data Reception
description/ordering information
The ’HCT139 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 time 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
T
A
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N Tube of 25 SN74HCT139N SN74HCT139N
Tube of 40 SN74HCT139D
SOIC − D
Reel of 2500 SN74HCT139DR
HCT139
−40°C to 85°C
SOIC − D
Reel of 250 SN74HCT139DT
HCT139
−40 C to 85 C
SSOP − DB Reel of 2000 SN74HCT139DBR HT139
TSSOP − PW
Reel of 2000 SN74HCT139PWR
HT139
TSSOP − PW
Reel of 250 SN74HCT139PWT
HT139
CDIP − J Tube of 25 SNJ54HCT139J SNJ54HCT139J
−55°C to 125°C
CFP − W Tube of 150 SNJ54HCT139W SNJ54HCT139W
−55 C to 125 C
LCCC − FK Tube of 55 SNJ54HCT139FK SNJ54HCT139FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications o
f
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
3212019
910111213
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
SN54HCT139 . . . 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
V
CC
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
SN54HCT139 ...J OR W PACKAGE
SN74HCT139 . . . D, DB, N, OR PW PACKAGE
(TOP VIEW)
Copyright 2003, Texas Instruments Incorporated
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