1
Data sheet acquired from Harris Semiconductor
SCHS152D
Features
• Two Enable Inputs to Facilitate Demultiplexing and
Cascading Functions
• Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating T emperature Range . . . -55
o
C to 125
o
C
• 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
Description
The ’HC154 and ’HCT154 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.
Pinout
CD54HC154, CD54HCT154
(CERDIP)
CD74HC154, CD74HCT154
(PDIP, SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C) PACKAGE
CD54HC154F3A -55 to 125 24 Ld CERDIP
CD54HCT154F3A -55 to 125 24 Ld CERDIP
CD74HC154E -55 to 125 24 Ld PDIP
CD74HC154EN -55 to 125 24 Ld PDIP
CD74HC154M -55 to 125 24 Ld SOIC
CD74HC154M96 -55 to 125 24 Ld SOIC
CD74HCT154E -55 to 125 24 Ld PDIP
CD74HCT154EN -55 to 125 24 Ld PDIP
CD74HCT154M -55 to 125 24 Ld SOIC
CD74HCT154M96 -55 to 125 24 Ld SOIC
NOTE: When ordering, use the entire part number. The suffix 96
denotes tape and reel.
1
2
3
4
5
6
7
8
9
10
11
12
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
Y10
GND
16
17
18
19
20
21
22
23
24
15
14
13
V
CC
A1
A2
A3
E2
Y15
Y13
Y12
Y11
A0
E1
Y14
September 1997 - Revised June 2004
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© 2004, Texas Instruments Incorporated
CD54HC154, CD74HC154,
CD54HCT154, CD74HCT154
High-Speed CMOS Logic
4- to 16-Line Decoder/Demultiplexer
/Title
CD74
C154
D74
CT15
)
Sub-
ect
High
peed
MOS
ogic
-to-16
ine
ecod
r/Dem
