Document
Data sheet acquired from Harris Semiconductor SCHS152D
September 1997 - Revised June 2004
CD54HC154, CD74HC154, CD54HCT154, CD74HCT154
High-Speed CMOS Logic 4- to 16-Line Decoder/Demultiplexer
[ /Title (CD74 HC154 , CD74 HCT15 4) /Subject (High Speed CMOS Logic 4-to-16 Line Decod er/Dem
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 Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL Logic ICs
• HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30%of VCC at VCC = 5V
• HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
Description
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.
Ordering Information
PART NUMBER CD54HC154F3A CD54HCT154F3A CD74HC154E CD74HC154EN CD74HC154M CD74HC154M96 CD74HCT154E CD74HCT154EN CD74HCT154M CD74HCT154M96
TEMP. RANGE (oC)
-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
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
The ’HC154 and ’HCT154 are 4- to 16-line NOTE: When ordering, use the entire part number. The suffix 96 decoders/demultiplexers with two enable inputs, E1 and E2. denotes tape and reel.
Pinout
CD54HC154, CD54HCT154 (CERDIP)
CD74HC154, CD74HCT154 (PDIP, SOIC) TOP VIEW
Y0 1 Y1 2 Y2 3 Y3 4 Y4 5 Y5 6 Y6 7 Y7 8 Y8 9 Y9 10 Y10 11 GND 12
24 VCC 23 A0 22 A1 21 A2 20 A3 19 E2 18 E1 17 Y15 16 Y14 15 Y13 14 Y12 13 Y11
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © 2004, Texas Instruments Incorporated
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CD54HC154, CD74HC154, CD54HCT154, CD74HCT154
Functional Diagram
A0 23 A1 22 A2 21
20 A3
E1 18 E2 19
1 Y0
2 Y1
3 Y2
4 Y3
5 Y4
6 Y5
7 Y6
8 Y7
9 Y8
10 Y9
11 Y10
13 Y11
14 Y12
15 Y13
16 Y14
17 Y15
GND = 12 VCC = 24
TRUTH TABLE
INPUTS
OUTPUTS
E1 E2 A3 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 Y13 Y14 Y15
L L L L L L LHHHHHHHHHHHHHHH
L L L L LHHLHHHHHHHHHHHHHH
L L L LHLHHLHHHHHHHHHHHHH
L L L LHHHHHLHHHHHHHHHHHH
L L LHL LHHHHLHHHHHHHHHHH
L L LHLHHHHHHLHHHHHHHHHH
L L LHHLHHHHHHLHHHHHHHHH
L L LHHHHHHHHHHLHHHHHHHH
L LHL L LHHHHHHHHLHHHHHHH
L LHL LHHHHHHHHHHLHHHHHH
L LHLHLHHHHHHHHHHLHHHHH
L LHLHHHHHHHHHHHHHLHHHH
L LHHL LHHHHHHHHHHHHLHHH
L LHHLHHHHHHHHHHHHHHLHH
L LHHHLHHHHHHHHHHHHHHLH
L LHHHHHHHHHHHHHHHHHHHL
L HX X X XHHHHHHHHHHHHHHHH
HL XXXXHHHHHHHHHHHHHHHH
HHXXXXHHHHHHHHHHHHHHHH
H = High Voltage Level, L = Low Voltage Level, X = Don’t Care
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CD54HC154, CD74HC154, CD54HCT154, CD74HCT154
Absolute Maximum Ratings
DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V DC Input Diode Current, IIK
For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA DC Output Diode Current, IOK
For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±20mA DC Output Source or Sink Current per Output Pin, IO
For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±25mA DC VCC or Ground Current, ICC or IGND . . . . . . . . . . . . . . . . . .±50mA
Thermal Information
Thermal Resistance (Typical)
θJA (oC/W)
E (PDIP) Package (.600) (Note 1) . . . . . . . . . . . . . .
67
EN (PDIP) Package (.300) (Note 1). . . . . . . . . . . . .
67
M (SOIC) Package (Note 2). . . . . . . . . . . . . . . . . . .
46
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
Operating Conditions
Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC Supply Voltage Range, VCC
HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to VCC Input Rise and Fall Time 2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may caus.