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LS 42
Datasheet
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RENESAS LS 42 Datasheet

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Page 1
HD74LS42
BCD-to-Decimal Decoder
REJ03D0409–0300
Rev.3.00
Jul.22.2005
Features
• Ordering Informatio n
Part Name Package Type
HD74LS42P DILP-16 pin
HD74LS42FPEL SOP-16 pin (JEITA)
HD74LS42RPEL SOP-16 pin (JEDEC) Note: Please consult the sales office for the above package availability.
Package Code (Previous Code)
PRDP0016AE-B (DP-16FV)
PRSP0016DH-B (FP-16DAV)
PRSP0016DG-A (FP-16DNV)
Package Abbreviation
P —
FP EL (2,000 pcs/reel)
RP EL (2,500 pcs/reel)
Taping Abbreviation (Quantity)
Pin Arrangement
Outputs
0Y
1Y
2Y
3Y
4Y
5Y
6Y
GND
161
V
0
2
3
4
5
6
7
8
A
1
2
3
B
4
5
C
6
7
8
D
9
(Top view)
15
14
13
12
11
10
CC
A
B
Inputs
C
D
9Y
8Y
Outputs
9
7Y
Rev.3.00, Jul.22.2005, page 1 of 6
Page 2
HD74LS42
Function Table
No.
0 L L L L L H H H H H H H H H 1 L L L H H L H H H H H H H H 2 L L H L H H L H H H H H H H 3 L L H H H H H L 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 L H H H H H H H H H H L H H 8 H L L L H H H H H H H H L H 9 H L L H H H H H H H H H H L
Invalid
H; high level, L; low level
BCD input Decimal output
D C B A 0 1 2 3 4 5 6 7 8 9
H L H L H H H H H H H H H H H L H H H H H H H H H H H H H H L L H H H H H H H H H H H H L H H H H H H H H H H H H 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
Block Diagram
0Y
1Y
2Y
3Y
4Y
5Y
6Y
7Y
8Y
9Y
Outputs
Inputs
A
B
C
D
A
A
B
B
C
C
D
D
Absolute Maximum Ratings
Item Symbol Ratings Unit
Supply voltage VCC 7 V Input voltage VIN 7 V Power dissipation PT 400 mW Storage temperature Tstg –65 to +150 °C Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Rev.3.00, Jul.22.2005, page 2 of 6
Page 3
HD74LS42
Recommended Operating Conditions
Item Symbol Min Typ Max Unit
Supply voltage VCC 4.75 5.00 5.25 V Output current
IOH — — –400 µA
— — 8 mA
I
OL
Operating temperature Topr –20 25 75 °C
Electrical Characteristics
(Ta = –20 to +75 °C)
Item Symbol min. typ.* max. Unit Condition
Input voltage
Output voltage
Input current
Short-circuit output current
Supply current ICC** — 7 13 mA VCC = 5.25 V Input clamp voltage VIK — — –1.5 V VCC = 4.75 V, IIN = –18 mA
Notes: * VCC = 5 V, Ta = 25°C
** V
is measured with all outputs and all inputs grounded.
CC
VIH 2.0 — — V V
— — 0.8 V
IL
V
= 4.75 V, VIH = 2 V, VIL = 0.8 V,
VOH 2.7 — — V
V
OL
— — 0.5 IOL = 8 mA — — 0.4
V
CC
I
= –400 µA
OH
= 4 mA
I
OL
= 4.75 V, VIH = 2 V,
V
CC
V
= 0.8 V
IL
IIH — — 20 µA VCC = 5.25 V, VI = 2.7 V IIL — — –0.4 mA VCC = 5.25 V, VI = 0.4 V
I
— — 0.1 mA VCC = 5.25 V, VI = 7 V
I
I
–20 — –100 mA VCC = 5.25 V
OS
Switching Characteristics
Item Symbol min. typ. max. Unit Condition
2 Stage — 15 25
Propagation delay time
3 Stage 2 Stage — 15 25 3 Stage
t
t
PLH
PHL
(VCC = 5 V, Ta = 25°C)
— 20 30
— 20 30
ns
ns
= 15 pF, RL = 2 kΩ
C
L
Rev.3.00, Jul.22.2005, page 3 of 6
Page 4
HD74LS42
Testing Method
Test Circuit
V
CC
4.5V
A
Input
P.G.
Z
out
= 50Ω
B
C
See Function Table
D
Notes: 1. All diodes are 1S2074(H).
2. CL includes probe and jig capacitance.
Waveform
t
TLH
Input
10%
90%
1.3 V
t
PLH
0
1
2
3
4
5
6
7
8
9
90%
1.3 V
t
THL
10%
Output
t
PHL
R
L
C
L
3 V
0 V
In phase output
Out of phase output
Note: Input pulse: t
≤ 15 ns, t
TLH
1.3 V 1.3 V
t
PHL
1.3 V 1.3 V
≤ 6 ns, PRR = 1 MHz, duty cycle 50%.
THL
t
PLH
V
OH
V
OL
V
OH
V
OL
Rev.3.00, Jul.22.2005, page 4 of 6
Page 5
HD74LS42
Package Dimensions
RENESAS CodeJEITA Package Code Previous Code PRDP0016AE-BP-DIP16-6.3x19.2-2.54
16 9
DP-16FV
D
MASS[Typ.]
E
1.05g
1 8
0.89
Z
P-SOP16-5.5x10.06-1.27 PRSP0016DH-B
*1
D
16 9
b
3
A
1
A
L
b
e c
RENESAS CodeJEITA Package Code Previous Code
p
FP-16DAV
MASS[Typ.]
0.24g
F
θ
e
1
( Ni/Pd/Au plating )
Reference
Symbol
e
1
D
E
A
A
1
b
p
b
3
c
θ
e
Z
L
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET.
Dimension in Millimeters
0.51
0.40 0.48
0.19 0.25 0.31
°
0
2.29 2.54 2.79
2.54
7.62
19.2
6.3
1.30
MaxNomMin
20.32
7.4
5.06
0.56
15
1.12
°
Index mark
Z
e
Rev.3.00, Jul.22.2005, page 5 of 6
b
p
E
E
H
*2
Terminal cross section
( Ni/Pd/Au plating )
81
*3
b
p
xM
A
y
1
A
Detail F
c
Symbol
D
E
A
2
A
1
A
b
p
b
1
c
c
1
0
θ
H
7.50 8.00
E
e
x
y
Z
L
L
1
Dimension in Millimeters
°
10.06
5.50
0.400.34
7.80
1.27
1.15
MaxNomMin
10.5
0.200.100.00
2.20
0.46
0.250.200.15
0.12
0.15
0.80
0.900.700.50
°
8
Reference
L
1
θ
L
Page 6
HD74LS42
P-SOP16-3.95x9.9-1.27 PRSP0016DG-A
Index mark
1
Zb
RENESAS CodeJEITA Package Code Previous Code
*1
D
e
FP-16DNV
916
E
*2
*3
p
8
xM
MASS[Typ.]
E
H
A
y
0.15g
F
Terminal cross section
( Ni/Pd/Au plating )
1
A
Detail F
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET.
b
p
c
L
1
L
Dimension in Millimeters
Reference
Symbol
D
E
A
2
A
1
A
b
p
b
1
c
c
1
0
°
θ
H
5.80 6.20
E
e
θ
x
y
Z
L
L
1
9.90
3.95
0.400.34
6.10
1.27
1.08
MaxNomMin
10.30
0.250.140.10
1.75
0.46
0.250.200.15
8
0.25
0.15
0.635
1.270.600.40
°
Rev.3.00, Jul.22.2005, page 6 of 6
Page 7
Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Keep safety first in your circuit designs!
1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage.
Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap.
Notes regarding these materials
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home page (http://www.renesas.com).
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http://www.renesas.com
Refer to "http://www.renesas.com/en/network" for the latest and detailed information.
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