|
HD74LS258 Datasheet, PDF (3/7 Pages) Hitachi Semiconductor – Quadruple 2-line-to-1-line Data Selectors/Multiplexers(with three-state outputs) | |||
|
◁ |
HD74LS258
Electrical Characteristics
(Ta = â20 to +75 °C)
Item
Symbol min. typ.* max. Unit
Condition
Input voltage
Output voltage
Output Current
S
except S
VIH
2.0
â
â
V
VIL
â
â
0.8
V
VOH
2.4
â
â
V
VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V,
IOH = â2.6 mA
VOL
â
â
0.4
V
IOL = 4 mA VCC = 4.75 V, VIH = 2 V,
â
â
0.5
V
IOL = 8 mA VIL = 0.8 V
IOZH
â
â
20
µA VCC = 5.25 V, VIH = 2 V, VO = 2.4 V
IOZL
â
â
â20
µA VCC = 5.25 V, VIH = 2 V, VO = 0.4 V
â
â
40
µA
IIH
â
â
20
µA
VCC = 5.25 V, VI = 2.7 V
Input
current
S
except S
â
â
â0.8
mA
IIL
â
â
â0.4
mA
VCC = 5.25 V, VI = 0.4 V
S
except S
â
â
0.2
mA
II
â
â
0.1
mA
VCC = 5.25 V, VI = 7 V
Short-circuit output current
IOS
All outputs high
Supply
current** All outputs low
ICC
All outputs off
â30
â
â130
mA VCC = 5.25 V
â
â
7
mA
â
â
11
mA VCC = 5.25 V
â
â
12
mA
Input clamp voltage
VIK
â
â
â1.5
V
VCC = 4.75 V, IIN = â18 mA
Notes: * VCC = 5 V, Ta = 25°C
** ICC is measured with all outputs open and all possible inputs grounded while achieving the stated output
conditions.
Switching Characteristics
(VCC = 5 V, Ta = 25°C)
Item
Symbol Inputs Output
min.
typ.
max.
Unit
Condition
tPLH
A, B
Y
Propagation delay time
tPHL
tPLH
S
Y
tPHL
â
12
18
ns
â
12
18
â
â
14
14
21
21
ns
CL = 15 pF,
RL = 2 kâ¦
Output enable time
tZH
OC
Y
tZL
â
20
30
ns
â
20
30
Output disable time
tHZ
OC
Y
tLZ
â
â
18
16
30
25
ns
CL = 5 pF,
RL = 2 kâ¦
Rev.3.00, Jul.15.2005, page 3 of 6
|
▷ |