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HD74LS40 Datasheet, PDF (3/5 Pages) Hitachi Semiconductor – Dual 4-input Positive NAND Buffers | |||
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HD74LS40
Electrical Characteristics
Item
Input voltage
Output voltage
Symbol
VIH
VIL
VOH
VOL
IIH
Input current
IIL
II
Short-circuit output
current
IOS
Supply current
ICCH
ICCL
Input clamp voltage
VIK
Note: * VCC = 5 V, Ta = 25°C
min.
2.0
â
2.7
â
â
â
â
â
â30
â
â
â
typ.*
â
â
â
â
â
â
â
â
â
0.45
3
â
max.
â
0.8
â
0.5
0.4
20
â0.4
0.1
â130
1.0
6
â1.5
Unit
V
V
V
V
µA
mA
mA
mA
mA
mA
V
(Ta = â20 to +75 °C)
Condition
VCC = 4.75 V, VIL = 0.8 V, IOH = â1.2 mA
IOL = 24 mA
IOL = 12 mA
VCC = 4.75 V, VIH = 2 V
VCC = 5.25 V, VI = 2.7 V
VCC = 5.25 V, VI = 0.4 V
VCC = 5.25 V, VI = 7 V
VCC = 5.25 V
VCC = 5.25 V
VCC = 5.25 V
VCC = 4.75 V, IIN = â18 mA
Switching Characteristics
(VCC = 5 V, Ta = 25°C)
Item
Symbol
min.
typ.
max.
Unit
Condition
Propagation delay time
tPLH
â
tPHL
â
12
12
24
24
ns
ns
CL = 45 pF, RL = 667 â¦
Note: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-
0100)".
Rev.2.00, Feb.18.2005, page 3 of 4
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