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HD74HCT137 Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – 3-to-8-line Decoder/Demultiplexer with Address Latch | |||
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HD74HCT137
Electrical Characteristics
Item
Symbol VCC (V)
Input voltage
VIH 4.5 to 5.5
VIL 4.5 to 5.5
Output voltage
VOH
4.5
4.5
VOL
4.5
4.5
Input current
Iin
5.5
Quiescent supply ICC
5.5
current
Ta = 25°C
Min Typ Max
2.0 â â
â â 0.8
4.4 â â
4.18 â â
â â 0.1
â â 0.26
â â ±0.1
â â 4.0
Ta = â40 to+85°C
Min Max
2.0
â
â
0.8
4.4
â
4.13
â
â
0.1
â
0.33
â
±1.0
â
40
Unit
V
V
V
V
µA
µA
Test Conditions
Vin = VIH or VIL IOH = â20 µA
IOH = â4 mA
Vin = VIH or VIL IOL = 20 µA
IOL = 4 mA
Vin = VCC or GND
Vin = VCC or GND, Iout = 0 µA
Switching Characteristics
Item
Propagation delay time
Pulse width
Setup time
Hold time
Output rise/fall time
Input capacitance
Symbol VCC (V)
tPLH
4.5
tPHL
4.5
tPLH
4.5
tPHL
4.5
tPLH
4.5
tPHL
4.5
tPLH
4.5
tPHL
4.5
tw
4.5
tsu
4.5
th
4.5
tTLH
4.5
tTHL
Cin
â
Ta = 25°C
Ta = â40 to +85°C
Min Typ Max Min
Max
â 14 34
â
43
â 22 48
â
60
â 11 26
â
33
â 23 39
â
49
â 13 30
â
38
â 17 39
â
49
â 16 35
â
44
â 23 50
â
63
16 6 â
20
â
20 3 â
25
â
10 0 â
13
â
â 5 15
â
19
â 5 10
â
10
(CL = 50 pF, Input tr = tf = 6 ns)
Unit
Test Conditions
ns A, B or C to Y
ns G2 to Y
ns G1 to Y
ns GL to Y
ns
ns
ns
ns
pF
Test Circuit
VCC
VCC
Input
Pulse Generator
Zout = 50 â¦
Input
Pulse Generator
Zout = 50 â¦
A
Output
B
Y0
C
CL = 50 pF
GL
Output
G2
Y7
G1
CL = 50 pF
Note : 1. CL includes probe and jig capacitance.
Rev.2.00 Mar 30, 2006 page 4 of 7
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