CD74HC154,
CD74HCT154
Data sheet acquired from Harris Semiconductor
SCHS152
High Speed CMOS Logic
September 1997
4-to-16 Line Decoder/Demultiplexer
Features
Description
• Two Enable Inputs to Facilitate Demultiplexing and
Cascading Functions
The Harris CD74HC154 and CD74HCT154 are 4-to-16 line
decoders/demultiplexers with two enable inputs, E1 and E2.
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.
[ /Title
(CD74
HC154
,
CD74
HCT15
4)
• Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
Ordering Information
• Significant Power Reduction Compared to LSTTL
Logic ICs
PKG.
/Sub-
ject
o
PART NUMBER TEMP. RANGE ( C) PACKAGE
NO.
E24.6
E24.6
E24.3
E24.3
• HC Types
CD74HC154E
CD74HCT154E
CD74HC154EN
CD74HC154EN
CD74HC154M
CD74HCT154M
NOTES:
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
24 Ld PDIP
24 Ld PDIP
24 Ld PDIP
24 Ld PDIP
- 2V to 6V Operation
(High
Speed
CMOS
Logic
4-to-16
Line
- High Noise Immunity: N = 30%, N = 30%of V
IL IH
at
CC
V
= 5V
CC
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
24 Ld SOIC M24.3
24 Ld SOIC M24.3
V = 0.8V (Max), V = 2V (Min)
IL IH
Decod
er/Dem
- CMOS Input Compatibility, I ≤ 1µA at V , V
OL OH
l
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer or d ie for this part number is available which meets all
electrical specifications. Please contact your local sales office or
Harris customer service for ordering information.
Pinout
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.
File Number 1657.1
Copyright © Harris Corporation 1997
1