RENESAS HD74LS42P

HD74LS42
BCD-to-Decimal Decoder
REJ03D0409–0300
Rev.3.00
Jul.22.2005
This monolithic decimal decoder consists of eight inverters and ten four-input NAND gates. The inverters are
connected in pairs to make BCD input data available for decoding by NAND gates. Full decoding of valid input logic
ensures that all outputs remain off for all invalid input conditions.
Features
• Ordering Information
Package Code
(Previous Code)
PRDP0016AE-B
(DP-16FV)
Part Name
Package Type
HD74LS42P
DILP-16 pin
HD74LS42FPEL
SOP-16 pin (JEITA)
HD74LS42RPEL
SOP-16 pin (JEDEC)
PRSP0016DH-B
(FP-16DAV)
PRSP0016DG-A
(FP-16DNV)
Package
Abbreviation
Taping Abbreviation
(Quantity)
P
—
FP
EL (2,000 pcs/reel)
RP
EL (2,500 pcs/reel)
Note: Please consult the sales office for the above package availability.
Pin Arrangement
0Y
1
16
VCC
15
A
14
B
13
C
12
D
11
9Y
10
8Y
9
7Y
0
1Y
2Y
2
1
3
2
3
Outputs
3Y
4
4Y
5
5Y
6
6Y
7
GND
8
A
B
4
5
6
C
7
8
D
9
(Top view)
Rev.3.00, Jul.22.2005, page 1 of 6
Inputs
Outputs
HD74LS42
Function Table
No.
BCD input
Decimal output
0
D
L
C
L
B
L
A
L
0
L
1
H
2
H
3
H
4
H
5
H
6
H
7
H
8
H
9
H
1
2
L
L
L
L
L
H
H
L
H
H
L
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
3
4
L
L
L
H
H
L
H
L
H
H
H
H
H
H
L
H
H
L
H
H
H
H
H
H
H
H
H
H
5
6
L
L
H
H
L
H
H
L
H
H
H
H
H
H
H
H
H
H
L
H
H
L
H
H
H
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
H
L
L
L
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
L
H
H
L
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
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
H
H
H
H
H
H
H
H
H
H
H
H
Invalid
H
H
H; high level, L; low level
Block Diagram
A
A
0Y
A
1Y
2Y
B
B
3Y
B
4Y
Inputs
Outputs
C
D
C
5Y
C
6Y
D
7Y
D
8Y
9Y
Absolute Maximum Ratings
Symbol
Ratings
Unit
Supply voltage
Input voltage
Item
VCC
VIN
7
7
V
V
Power dissipation
Storage temperature
PT
Tstg
400
–65 to +150
mW
°C
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Rev.3.00, Jul.22.2005, page 2 of 6
HD74LS42
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Symbol
Min
Typ
Max
Unit
VCC
IOH
4.75
—
5.00
—
5.25
–400
V
µA
IOL
Topr
—
–20
—
25
8
75
mA
°C
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Input voltage
Symbol
min.
typ.*
max.
Unit
VIH
VIL
2.0
—
—
—
—
0.8
V
V
VOH
2.7
—
—
V
—
—
0.5
IIH
—
—
—
—
0.4
20
µA
VCC = 5.25 V, VI = 2.7 V
IIL
II
—
—
—
—
–0.4
0.1
mA
mA
VCC = 5.25 V, VI = 0.4 V
VCC = 5.25 V, VI = 7 V
—
–100
mA
VCC = 5.25 V
Output voltage
VOL
Input current
VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V,
IOH = –400 µA
IOL = 8 mA
VCC = 4.75 V, VIH = 2 V,
VIL = 0.8 V
IOL = 4 mA
V
Short-circuit output
current
Supply current
IOS
–20
ICC**
—
7
13
mA
Input clamp voltage
VIK
—
—
–1.5
V
Condition
VCC = 5.25 V
VCC = 4.75 V, IIN = –18 mA
Notes: * VCC = 5 V, Ta = 25°C
** VCC is measured with all outputs and all inputs grounded.
Switching Characteristics
(VCC = 5 V, Ta = 25°C)
Item
Symbol
2 Stage
Propagation delay time
3 Stage
2 Stage
3 Stage
Rev.3.00, Jul.22.2005, page 3 of 6
tPLH
tPHL
min.
—
typ.
15
max.
25
—
—
20
15
30
25
—
20
30
Unit
Condition
ns
CL = 15 pF, RL = 2 kΩ
ns
HD74LS42
Testing Method
Test Circuit
VCC
4.5V
0
RL
Output
Input
P.G.
Zout = 50Ω
See Function Table
1
2
A
3
B
4
5
C
CL
6
7
D
8
9
Notes:
1. All diodes are 1S2074(H).
2. CL includes probe and jig capacitance.
Waveform
tTHL
tTLH
90%
1.3 V
Input
3V
90%
1.3 V
10%
10%
0V
tPHL
tPLH
VOH
In phase output
1.3 V
1.3 V
VOL
tPHL
tPLH
VOH
Out of phase output
1.3 V
1.3 V
VOL
Note:
Input pulse: tTLH ≤ 15 ns, tTHL ≤ 6 ns, PRR = 1 MHz, duty cycle 50%.
Rev.3.00, Jul.22.2005, page 4 of 6
HD74LS42
Package Dimensions
JEITA Package Code
P-DIP16-6.3x19.2-2.54
RENESAS Code
PRDP0016AE-B
Previous Code
DP-16FV
MASS[Typ.]
1.05g
D
9
E
16
1
8
b3
0.89
Z
A1
A
Reference
Symbol
L
e
Nom
θ
c
e1
D
19.2
E
6.3
JEITA Package Code
P-SOP16-5.5x10.06-1.27
RENESAS Code
PRSP0016DH-B
*1
Previous Code
FP-16DAV
7.4
A1
0.51
b
p
0.40
b
3
0.48
0.56
1.30
c
0.19
θ
0°
e
2.29
0.25
0.31
2.54
2.79
15°
1.12
L
2.54
MASS[Typ.]
0.24g
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
D
F
16
20.32
5.06
Z
( Ni/Pd/Au plating )
Max
7.62
1
A
bp
e
Dimension in Millimeters
Min
9
c
HE
*2
E
bp
Index mark
Reference
Symbol
Terminal cross section
( Ni/Pd/Au plating )
1
Z
*3
bp
Nom
D
10.06
E
5.50
Max
10.5
A2
8
e
Dimension in Millimeters
Min
x
A1
M
0.00
0.10
0.20
0.34
0.40
0.46
0.15
0.20
0.25
7.80
8.00
2.20
A
L1
bp
b1
c
A
c
A1
θ
y
L
Detail F
1
θ
0°
HE
7.50
1.27
e
x
0.12
y
0.15
Z
0.80
0.50
L
L
Rev.3.00, Jul.22.2005, page 5 of 6
8°
1
0.70
1.15
0.90
HD74LS42
JEITA Package Code
P-SOP16-3.95x9.9-1.27
RENESAS Code
PRSP0016DG-A
*1
Previous Code
FP-16DNV
MASS[Typ.]
0.15g
D
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
F
16
9
c
*2
Index mark
HE
E
bp
Reference
Symbol
Terminal cross section
( Ni/Pd/Au plating )
Dimension in Millimeters
Min
Nom
Max
D
9.90
10.30
E
3.95
A2
1
Z
8
e
*3
bp
x
A1
0.10
0.14
0.25
0.34
0.40
0.46
0.15
0.20
0.25
6.10
6.20
1.75
A
M
L1
bp
b1
c
A
c
A1
θ
L
y
Detail F
1
θ
0°
HE
5.80
1.27
e
x
0.25
y
0.15
Z
0.635
0.40
L
L
Rev.3.00, Jul.22.2005, page 6 of 6
8°
1
0.60
1.08
1.27
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