CD54HC139 Datasheet, PDF (1/11 Pages) Texas Instruments – High-Speed CMOS Logic Dual 2- to 4-Line Decoder/Demultiplexer

Data sheet acquired from Harris Semiconductor
SCHS148D
September 1997 - Revised October 2003
CD54HC139, CD74HC139,
CD54HCT139, CD74HCT139
High-Speed CMOS Logic
Dual 2- to 4-Line Decoder/Demultiplexer
[ /Title
(CD74
HC139
,
CD74
HCT13
9)
/Sub-
ject
(High
Speed
CMOS
Logic
Dual
2-to-4
Line
Decod
Features
• Multifunction Capability
- Binary to 1 of 4 Decoders or 1 to 4 Line
Demultiplexer
• Active Low Mutually Exclusive Outputs
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55^oC to 125^oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: N_IL = 30%, N_IH = 30%of V_CC at
V_CC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V_IL= 0.8V (Max), V_IH = 2V (Min)
- CMOS Input Compatibility, I_l ≤ 1µA at V_OL, V_OH
• Memory Decoding, Data Routing, Code Conversion
Description
The ’HC139 and ’HCT139 devices contain two independent
binary to one of four decoders each with a single active low
enable input (1E or 2E). Data on the select inputs (1A0 and
1A1 or 2A0 and 2A1) cause one of the four normally high
outputs to go low.
If the enable input is high all four outputs remain high. For
demultiplexer operation the enable input is the data input.
The enable input also functions as a chip select when these
devices are cascaded. This device is functionally the same
as the CD4556B and is pin compatible with it.
The outputs of these devices can drive 10 low power
Schottky TTL equivalent loads. The HCT logic family is
functionally as well as pin equivalent to the LS logic family.
Ordering Information
PART NUMBER
CD54HC139F3A
CD54HCT139F3A
CD74HC139E
CD74HC139M
CD74HC139MT
TEMP. RANGE
(^oC)
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
PACKAGE
16 Ld CERDIP
16 Ld CERDIP
16 Ld PDIP
16 Ld SOIC
16 Ld SOIC
CD74HC139M96
-55 to 125
16 Ld SOIC
CD74HCT139E
-55 to 125
16 Ld PDIP
CD74HCT139M
-55 to 125
16 Ld SOIC
Pinout
CD74HCT139MT
-55 to 125
16 Ld SOIC
CD54HC139, CD54HCT139
(CERDIP)
CD74HC139, CD74HCT139
(PDIP, SOIC)
TOP VIEW
CD74HCT139M96
-55 to 125
16 Ld SOIC
NOTE: When ordering, use the entire part number. The suffix 96
denotes tape and reel. The suffix T denotes a small-quantity reel of
250.
1E 1
1A0 2
1A1 3
1Y0 4
1Y1 5
1Y2 6
1Y3 7
GND 8
16 V_CC
15 2E
14 2A0
13 2A1
12 2Y0
11 2Y1
10 2Y2
9 2Y3
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © 2003, Texas Instruments Incorporated
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