STMicroelectronics M54HC42F1R Bcd to decimal decoder Datasheet

M54HC42
M74HC42
BCD TO DECIMAL DECODER
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HIGH SPEED
tPD = 13 ns (TYP.) AT VCC = 5 V
LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 4 mA (MIN.)
BALANCED PROPAGATION DELAYS
tPLH = tPHL
WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
PIN AND FUNCTION COMPATIBLE
WITH 54/74LS42
B1R
(Plastic Package)
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HC42F1R
M74HC42M1R
M74HC42B1R
M74HC42C1R
DESCRIPTION
The M54/74HC42 is a high speed CMOS BCD-TODECIMAL DECODER fabricated in silicon gate
C2MOS technology.
It has the same high speed performance of LSTTL
combined with true CMOS low power consumption.
A BCD code applied to the four inputs A-D selects
one of ten decimal outputs Y0-Y9, which goes low
to fifteen gives a high level at all outputs. This device
also can be used as a 3-to-8 LINE DECODER, when
the D input is assigned as a disable input. This device is useful for code conversion, address decoding, memory selection, demultiplexing, or readout
decoding.
All inputs are equipped with protection circuits against
static discharge and transient excess voltage.
PIN CONNECTIONS (top view)
INPUT AND OUTPUT EQUIVALENT CIRCUIT
NC =
No Internal
Connection
December 1992
1/10
M54/M74HC42
PIN DESCRIPTION
IEC LOGIC SYMBOL
PIN No
SYMBOL
NAME AND FUNCTION
15, 14, 13,
12
1, 2, 3, 4,
5, 6, 7, 9,
10, 11
8
A, B, C, D
Data Inputs
GND
Ground (0V)
16
VCC
Positive Supply Voltage
Y0 to Y9
LOGIC DIAGRAM
2/10
Multiplexer Outputs
M54/M74HC42
FUNCTIONAL TABLE
CODE No.
BCD INPUTS
DECIMAL OUTPUTS
0
D
L
C
L
B
L
A
L
Y0
L
Y1
H
Y2
H
Y3
H
Y4
H
Y5
H
Y6
H
Y7
H
Y8
H
Y9
H
1
L
L
L
H
H
L
H
H
H
H
H
H
H
H
2
3
L
L
L
L
H
H
L
H
H
H
H
H
L
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
4
L
H
L
L
H
H
H
H
L
H
H
H
H
H
5
L
H
L
H
H
H
H
H
H
L
H
H
H
H
6
L
H
H
L
H
H
H
H
H
H
L
H
H
H
7
8
L
H
H
L
H
L
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
L
H
H
9
H
L
L
H
H
H
H
H
H
H
H
H
H
L
10
11
H
H
L
L
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
12
H
H
L
L
H
H
H
H
H
H
H
H
H
H
13
14
H
H
H
H
L
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
15
H
H
H
H
H
H
H
H
H
H
H
H
H
H
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
-0.5 to +7
V
-0.5 to VCC + 0.5
-0.5 to VCC + 0.5
V
V
DC Input Diode Current
± 20
mA
DC Output Diode Current
DC Output Source Sink Current Per Output Pin
± 20
± 25
mA
mA
VCC
Supply Voltage
VI
VO
DC Input Voltage
DC Output Voltage
IIK
IOK
IO
ICC or IGND
DC VCC or Ground Current
PD
Tstg
Power Dissipation
Storage Temperature
TL
Lead Temperature (10 sec)
± 50
mA
500 (*)
-65 to +150
mW
o
C
300
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.
(*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
VCC
Supply Voltage
2 to 6
V
VI
VO
Input Voltage
Output Voltage
0 to VCC
0 to VCC
V
V
Top
Operating Temperature: M54HC Series
M74HC Series
tr, tf
Input Rise and Fall Time
-55 to +125
-40 to +85
VCC = 2 V
VCC = 4.5 V
0 to 1000
0 to 500
VCC = 6 V
0 to 400
o
o
C
C
ns
3/10
M54/M74HC42
DC SPECIFICATIONS
Test Conditions
Symbol
VIH
V IL
V OH
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level
Output Voltage
II
ICC
Low Level Output
Voltage
Input Leakage
Current
Quiescent Supply
Current
TA = 25 C
54HC and 74HC
Min. Typ. Max.
VCC
(V)
-40 to 85 oC -55 to 125 oC
74HC
54HC
Min. Max. Min. Max.
2.0
1.5
1.5
1.5
4.5
6.0
3.15
4.2
3.15
4.2
3.15
4.2
2.0
0.5
0.5
0.5
1.35
1.35
1.35
6.0
1.8
1.8
1.8
2.0
4.5
6.0
6.0
2.0
Unit
V
4.5
4.5
VOL
Value
o
VI =
IO=-20 µA
VIH
or
V IL IO=-4.0 mA
1.9
2.0
1.9
1.9
4.4
5.9
4.5
6.0
4.4
5.9
4.4
5.9
4.18
4.31
4.13
4.10
IO=-5.2 mA
5.68
5.8
0.0
5.63
0.1
0.1
0.1
V
V
5.60
0.0
0.1
0.1
0.1
6.0
4.5
VI =
IO= 20 µA
VIH
or
V IL IO= 4.0 mA
0.0
0.17
0.1
0.26
0.1
0.33
0.1
0.40
6.0
IO= 5.2 mA
0.18
0.26
0.33
0.40
VI = VCC or GND
±0.1
±1
±1
µA
VI = VCC or GND
4
40
80
µA
4.5
6.0
6.0
V
AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns)
Test Conditions
Symbol
Parameter
tTLH
tTHL
Output Transition
Time
tPLH
tPHL
Propagation
Delay Time
Value
VCC
(V)
TA = 25 oC
54HC and 74HC
Min. Typ. Max.
-40 to 85 oC -55 to 125 oC
74HC
54HC
Min. Max. Min. Max.
Unit
2.0
30
75
95
110
4.5
6.0
8
7
15
13
19
16
22
19
2.0
64
130
165
195
4.5
6.0
16
14
26
22
33
28
39
33
ns
10
10
10
pF
CIN
Input Capacitance
5
CPD (*)
Power Dissipation
Capacitance
60
ns
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC
4/10
M54/M74HC42
SWITCHING CHARACTERISTICS TEST WAVEFORM
TEST CIRCUIT ICC (Opr.)
INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTIC TEST
5/10
M54/M74HC42
Plastic DIP16 (0.25) MECHANICAL DATA
mm
DIM.
MIN.
a1
0.51
B
0.77
TYP.
inch
MAX.
MIN.
TYP.
MAX.
0.020
1.65
0.030
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
17.78
0.700
F
7.1
0.280
I
5.1
0.201
L
Z
3.3
0.130
1.27
0.050
P001C
6/10
M54/M74HC42
Ceramic DIP16/1 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
20
0.787
B
7
0.276
D
E
3.3
0.130
0.38
e3
0.015
17.78
0.700
F
2.29
2.79
0.090
0.110
G
0.4
0.55
0.016
0.022
H
1.17
1.52
0.046
0.060
L
0.22
0.31
0.009
0.012
M
0.51
1.27
0.020
0.050
N
P
Q
10.3
7.8
8.05
5.08
0.406
0.307
0.317
0.200
P053D
7/10
M54/M74HC42
SO16 (Narrow) MECHANICAL DATA
mm
DIM.
MIN.
TYP.
A
a1
inch
MAX.
MIN.
TYP.
1.75
0.1
0.068
0.2
a2
MAX.
0.004
0.007
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45° (typ.)
D
9.8
E
5.8
10
0.385
6.2
0.228
0.393
0.244
e
1.27
0.050
e3
8.89
0.350
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
S
0.62
0.024
8° (max.)
P013H
8/10
M54/M74HC42
PLCC20 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
9.78
10.03
0.385
0.395
B
8.89
9.04
0.350
0.356
D
4.2
4.57
0.165
0.180
d1
2.54
0.100
d2
0.56
0.022
E
7.37
8.38
0.290
0.330
e
1.27
0.050
e3
5.08
0.200
F
0.38
0.015
G
0.101
0.004
M
1.27
0.050
M1
1.14
0.045
P027A
9/10
M54/M74HC42
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
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