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Renesas Electronics Components Datasheet

HD74LS145 Datasheet

BCD-to-Decimal Decoder/Driver

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Preliminary Datasheet
HD74LS145
BCD-to-Decimal Decoder / Driver (with 15 V outputs)
R04DS0007EJ0400
(Previous: REJ03D0436-0300)
Rev.4.00
Dec 24, 2010
This BCD-to-decimal decoder / driver 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 the NAND gates. Full decoding of valid BCD
input logic ensures that all outputs remain off for all invalid binary input conditions. This decoder features high-
performance, n-p-n output transistors designed for use as indicator / relay drivers or as open-collector logic-circuit
drivers.
Features
Ordering Information
Part Name
Package Type
Package Code Package
(Previous Code) Abbreviation
HD74LS145P
DILP-16 pin
PRDP0016AE-B
(DP-16FV)
P
HD74LS145FPEL SOP-16 pin (JEITA)
PRSP0016DH-B
(FP-16DAV)
FP
HD74LS145RPEL SOP-16 pin (JEDEC)
PRSP0016DG-A RP
(FP-16DNV)
Note: Please consult the sales office for the above package availability.
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
EL (2,500 pcs/reel)
Pin Arrangement
Y0 1
Y1 2
Y2 3
Outputs Y3 4
Y4 5
Y5 6
Y6 7
GND 8
0
1A
2
3B
4
5
6C
7
8D
9
16 VCC
15 A
14 B
13 C
Inputs
12 D
11 Y9
10 Y8 Outputs
9 Y7
(Top view)
R04DS0007EJ0400 Rev.4.00
Dec 24, 2010
Page 1 of 6


Renesas Electronics Components Datasheet

HD74LS145 Datasheet

BCD-to-Decimal Decoder/Driver

No Preview Available !

HD74LS145
Preliminary
Function Table
Inputs
Outputs
No.
DCBA0 1 2 3 4 5 6 7 8 9
0 L L L L LHHHHHHHHH
1 L L LHH L HHHHHHHH
2 L LHLHHLHHHHHHH
3 L LHHHHH L HHHHHH
4 LHL LHHHHLHHHHH
5 LHLHHHHHH L HHHH
6 LHHL HHHHHH L HHH
7 LHHHHHHHHHH L HH
8 HL L LHHHHHHHHLH
9 HL LHHHHHHHHHHL
HLHLHHHHHHHHHH
H L HHHHHHHHHHHH
HHL L HHHHHHHHHH
Invalid
HH L HHHHHHHHHHH
HHHL HHHHHHHHHH
HHHHHHHHHHHHHH
Block Diagram
A
B
Inputs
C
D
Y0
Y1
Y2
Y3
Y4
Outputs
Y5
Y6
Y7
Y8
Y9
Absolute Maximum Ratings
Item
Symbol
Ratings
Supply voltage
VCC
7
Input voltage
VIN 7
Power dissipation
PT 400
Storage temperature
Tstg –65 to +150
Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Unit
V
V
mW
C
R04DS0007EJ0400 Rev.4.00
Dec 24, 2010
Page 2 of 6


Part Number HD74LS145
Description BCD-to-Decimal Decoder/Driver
Maker Renesas
PDF Download

HD74LS145 Datasheet PDF






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