National Semiconductor MM54HC154, MM74HC154 Service Manual
MM54HC154/MM74HC154
4-to-16 Line Decoder
General Description
This 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 MM54HC154/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
cascading of decoders with little or no external logic.
and G2) are provided to ease
Connection Diagram Dual-In-Line Package
Each output can drive 10 low power Schottky TTL equivalent loads, and is functionally and pin equivalent to the
54LS154/74LS154. All inputs are protected from damage
due to static discharge by diodes to V
Features
Y
Typical propagation delay: 21 ns
Y
Power supply quiescent current: 80 mA (74HC)
Y
Wide power supply voltage range: 2 –6V
Y
Low input current: 1 mA maximum
September 1990
and ground.
CC
MM54HC154/MM74HC154 4-to-16 Line Decoder
Order Number MM54HC154 or MM74HC154
Top View
TL/F/5122– 1
Truth Table
Inputs Low
G1 G2 DCBA
L L LLLL 0
L L LLLH 1
LLLLHL 2
LLLLHH 3
L L LHLL 4
L L LHLH 5
LLLHHL 6
LLLHHH 7
LLHLLL 8
LLHLLH 9
L L HLHL 10
L L HLHH 11
LLHHLL 12
LLHHLH 13
L L HHHL 14
L L HHHH 15
L H XXXX Ð
H L XXXX Ð
H H XXXX Ð
*All others high
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.
TL/F/5122
Output*
Absolute Maximum Ratings (Notes1&2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage (V
CC
)
DC Input Voltage (VIN)
DC Output Voltage (V
OUT
)
Clamp Diode Current (IIK,IOK)
DC Output Current, per pin (I
OUT
)
DC VCCor GND Current, per pin (ICC)
Storage Temperature Range (T
STG
Power Dissipation (PD)
b
b
)
b
0.5 toa7.0V
1.5 to V
CC
0.5 to V
CC
g
g
b
g
65§Ctoa150§C
a
1.5V
a
0.5V
20 mA
25 mA
50 mA
Operating Conditions
Supply Voltage (V
DC Input or Output Voltage 0 V
(V
IN,VOUT
Operating Temp. Range (TA)
MM74HC
MM54HC
Input Rise or Fall Times
)26V
CC
)
e
V
2.0V(tr,tf) 1000 ns
CC
e
V
4.5V 500 ns
CC
e
V
6.0V 400 ns
CC
(Note 3) 600 mW
S.O. Package only 500 mW
Lead Temp. (T
) (Soldering 10 seconds) 260§C
L
DC Electrical Characteristics (Note 4)
e
T
25§C
Symbol Parameter Conditions V
CC
A
Typ Guaranteed Limits
V
IH
Minimum High 2.0V 1.5 1.5 1.5 V
Level Input 4.5V 3.15 3.15 3.15 V
Voltage 6.0V 4.2 4.2 4.2 V
V
IL
Maximum Low 2.0V 0.5 0.5 0.5 V
Level Input 4.5V 1.35 1.35 1.35 V
Voltage** 6.0V 1.8 1.8 1.8 V
V
OH
Minimum High V
Level Output
Voltage 4.5V 4.5 4.4 4.4 4.4 V
e
VIHor V
l
I
OUT
IN
IL
s
20 mA 2.0V 2.0 1.9 1.9 1.9 V
l
6.0V 6.0 5.9 5.9 5.9 V
e
V
VIHor V
IN
I
l
OUT
I
l
OUT
l
I
OUT
e
IN
V
OL
Maximum Low V
Level Output
Voltage 4.5V 0 0.1 0.1 0.1 V
IL
s
4.0 mA 4.5V 4.2 3.98 3.84 3.7 V
l
s
5.2 mA 6.0V 5.7 5.48 5.34 5.2 V
l
VIHor V
IL
s
20 mA 2.0V 0 0.1 0.1 0.1 V
l
6.0V 0 0.1 0.1 0.1 V
e
V
VIHor V
IN
I
l
OUT
I
l
OUT
I
IN
I
CC
Maximum V
Input Current
Maximum V
Quiescent I
Supply Current
Note 1: Absolute Maximum Ratings are those values beyond which damage to the device may occur.
Note 2: Unless otherwise specified all voltages are referenced to ground.
Note 3: Power Dissipation temperature derating Ð plastic ‘‘N’’ package:
Note 4: For a power supply of 5V
with this supply. Worst case V
) occur for CMOS at the higher voltage and so the 6.0V values should be used.
I
OZ
**V
limits are currently tested at 20% of VCC. The above VILspecification (30% of VCC) will be implemented no later than Q1, CY’89.
IL
e
IN
e
IN
OUT
g
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
and VILoccur at V
IH
IL
s
4.0 mA 4.5V 0.2 0.26 0.33 0.4 V
l
s
5.2 mA 6.0V 0.2 0.26 0.33 0.4 V
l
VCCor GND 6.0V
g
0.1
VCCor GND 6.0V 8.0 80 160 mA
e
0 mA
b
12 mW/§C from 65§Cto85§C; ceramic ‘‘J’’ package:b12 mW/§C from 100§Cto125§C.
e
5.5V and 4.5V respectively. (The VIHvalue at 5.5V is 3.85V.) The worst case leakage current (IIN,ICC, and
CC
74HC 54HC
eb
T
40 to 85§CT
A
g
1.0
Min Max Units
V
§
§
Units
b
b
A
40
55
eb
55 to 125§C
g
CC
a
85
a
125
1.0 mA
C
C
2
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