CD54HC154, CD74HC154,
CD54HCT154, CD74HCT154
Data sheet acquired from Harris Semiconductor
SCHS152D
High-Speed CMOS Logic
4- to 16-Line Decoder/Demultiplexer
September 1997 - Revised June 2004
A High on either enable input forces the output into the High
state. The demultiplexing function is performed by using the
four input lines, A0 to A3, to select the output lines Y0 to
Y15, and using one enable as the data input while holding
the other enable low.
Features
• Two Enable Inputs to Facilitate Demultiplexing and
Cascading Functions
[ /Title
(CD74
HC154
,
CD74
HCT15
4)
• Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
Ordering Information
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
TEMP. RANGE
o
PART NUMBER
CD54HC154F3A
CD54HCT154F3A
CD74HC154E
( C)
PACKAGE
24 Ld CERDIP
24 Ld CERDIP
24 Ld PDIP
24 Ld PDIP
24 Ld SOIC
24 Ld SOIC
24 Ld PDIP
24 Ld PDIP
24 Ld SOIC
24 Ld SOIC
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
• Significant Power Reduction Compared to LSTTL
Logic ICs
/Sub-
ject
• HC Types
- 2V to 6V Operation
(High
Speed
CMOS
Logic
4-to-16
Line
CD74HC154EN
CD74HC154M
- High Noise Immunity: N = 30%, N = 30%of V
IL IH
at
CC
V
= 5V
CC
• HCT Types
CD74HC154M96
CD74HCT154E
CD74HCT154EN
CD74HCT154M
CD74HCT154M96
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V = 0.8V (Max), V = 2V (Min)
IL IH
Decod
er/Dem
- CMOS Input Compatibility, I ≤ 1µA at V , V
OL OH
l
Description
The ’HC154 and ’HCT154 are 4- to 16-line
decoders/demultiplexers with two enable inputs, E1 and E2.
NOTE: When ordering, use the entire part number. The suffix 96
denotes tape and reel.
Pinout
CD54HC154, CD54HCT154
(CERDIP)
CD74HC154, CD74HCT154
(PDIP, SOIC)
TOP VIEW
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
1
2
3
4
5
6
7
8
9
24
V
CC
23 A0
22 A1
21 A2
20 A3
19 E2
18 E1
17 Y15
16 Y14
15 Y13
14 Y12
13 Y11
Y9 10
Y10 11
GND 12
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © 2004, Texas Instruments Incorporated
1