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MM74HC154 4-to-16 Line Decoder
September 1983 Revised February 1999
MM74HC154 4-to-16 Line Decoder
General Description
The MM74HC154 decoder utilizes advanced silicon-gate CMOS technology, and is well suited to memory address decoding or data routing applications. It possesses high noise immunity, and low power consumption of CMOS with speeds similar to low power Schottky TTL circuits. The MM74HC154 have 4 binary select inputs (A, B, C, and D). If the device is enabled these inputs determine which one of the 16 normally HIGH outputs will go LOW. Two active LOW enables (G1 and G2) are provided to ease cascading of decoders with little or no external logic. Each output can drive 10 low power Schottky TTL equivalent loads, and is functionally and pin equivalent to the 74LS154. All inputs are protected from damage due to static discharge by diodes to VCC and ground.
Features
s Typical propagation delay: 21 ns s Power supply quiescent current: 80 A s Wide power supply voltage range: 2-6V s Low input current: 1 A maximum
Ordering Code:
Order Number MM74HC154WM MM74HC154MTC MM74HC154N Package Number M24B MTC24 N24C Package Description 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Body 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300" Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Connection Diagram
Pin Assignments for DIP, SOIC and TSSOP
Truth Table
Inputs G1 G2 L L L L L L L L L L L L L L L L L L L L L L L L L L L H L H D L L L L L L L L H H H H H H H H X X X C L L L L H H H H L L L L H H H H X X X B L L H H L L H H L L H H L L H H X X X A L H L H L H L H L H L H L H L H X X X Low Output (Note 1) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 -- -- --
Top View
L L L L L L H H
Note 1: All others HIGH
(c) 1999 Fairchild Semiconductor Corporation
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MM74HC154
Logic Diagram
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MM74HC154
Absolute Maximum Ratings(Note 2)
(Note 3) Supply Voltage (VCC) DC Input Voltage (VIN) DC Output Voltage (VOUT) Clamp Diode Current (IIK, IOK) DC Output Current, per pin (IOUT) DC VCC or GND Current, per pin (ICC) Storage Temperature Range (TSTG) Power Dissipation (PD) (Note 4) S.O. Package only Lead Temperature (TL) (Soldering 10 seconds) 260C (Note 5)
Conditions
Recommended Operating Conditions
Min Max Units Supply Voltage (VCC) DC Input or Output Voltage (VIN, VOUT) Operating Temperature Range (TA) Input Rise or Fall Times (tr, tf) VCC = 2.0V VCC = 4.5V VCC = 6.0V 1000 500 400 ns ns ns 2 0 6 VCC V V C
-0.5 to +7.0V -1.5 to VCC +1.5V -0.5 to VCC +0.5V 20 mA 25 mA 50 mA -65C to +150C 600 mW 500 mW
-40 +85
Note 2: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Note 3: Unless otherwise specified all voltages are referenced to ground. Note 4: Power Dissipation temperature derating -- plastic "N" package: - 12 mW/C from 65C to 85C.
DC Electrical Characteristics
Symbol VIH Parameter Minimum HIGH Level Input Voltage VIL Maximum LOW Level Input Voltage VOH Minimum HIGH Level Output Voltage
VCC 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V
TA = 25C Typ 1.5 3.15 4.2 0.5 1.35 1.8 2.0 4.5 6.0 4.2 5.7 0 0 0 0.2 0.2 1.9 4.4 5.9 3.98 5.48 0.1 0.1 0.1 0.26 0.26 0.1 8.0
TA = -40 to 85C Guaranteed Limits 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.84 5.34 0.1 0.1 0.1 0.33 0.33 1.0 80
Units V V V V V V V V V V V V V V V V A A
VIN = VIH or VIL |IOUT| 20 A 2.0V 4.5V 6.0V VIN = VIH or VIL |IOUT| 4.0 mA |IOUT| 5.2 mA 4.5V 6.0V 2.0V 4.5V 6.0V VIN = VIH or VIL |IOUT| 4.0 mA |IOUT| 5.2 mA 4.5V 6.0V 6.0V 6.0V
VOL
Maximum LOW Level Output Voltage
VIN = VIH or VIL |IOUT| 20 A
IIN ICC
Maximum Input Current Maximum Quiescent Supply Current
VIN = VCC or GND VIN = VCC or GND IOUT = 0 A
Note 5: For a power supply of 5V 10% the worst case output voltages (VOH, and VOL) occur for HC at 4.5V. Thus the 4.5V values should be used when designing with this supply. Worst case VIH and VIL occur at VCC = 5.5V and 4.5V respectively. (The VIH value at 5.5V is 3.85V.) The worst case leakage current (IIN, ICC, and IOZ) occur for CMOS at the higher voltage and so the 6.0V values should be used.
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MM74HC154
AC Electrical Characteristics
VCC = 5V, TA = 25C, CL = 15 pF, tr = tf = 6 ns Symbol tPHL, tPLH Parameter Maximum Propagation Delay, G1 , G2 or A, B, C, D Conditions Typ 21 Guaranteed Limit 32 Units ns
AC Electrical Characteristics
VCC = 2.0V to 6.0V, CL = 50 pF, tr = tf = 6 ns (unless otherwise specified) Symbol tPHL, tPLH Parameter Maximum Propagation Delay, G1 or G2 or A, B, C, D tTLH, tTHL Maximum Output Rise and Fall Time CPD CIN Power Dissipation Capacitance (Note 6) Maximum Input Capacitance
Note 6: CPD determines the no load dynamic power consumption, PD = CPD VCC2 f + ICC VCC, and the no load dynamic current consumption, IS = CPD V CC f + ICC.
Conditions
VCC 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V
TA = 25C Typ 63 24 20 25 7 6 90 5 10 160 36 30 75 15 13
TA = -40 to 85C Guaranteed Limits 190 42 35 95 19 16
Units ns ns ns ns ns ns pF
10
pF
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MM74HC154
Physical Dimensions inches (millimeters) unless otherwise noted
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Body Package Number M24B
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MM74HC154
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC24
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MM74HC154 4-to-16 Line Decoder
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300" Wide Package Number N24C
LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or systems device or system whose failure to perform can be reawhich, (a) are intended for surgical implant into the sonably expected to cause the failure of the life support body, or (b) support or sustain life, and (c) whose failure device or system, or to affect its safety or effectiveness. to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the www.fairchildsemi.com user.
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.

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