HD74LS253 Datasheet, PDF (3/6 Pages) Hitachi Semiconductor – Dual 4-line-to-1-line Data Selectors/Multiplexers(with three-state outputs)

HD74LS253
Recommended Operating Conditions
Item
Supply voltage
Output current
Operating temperature
Symbol
V_CC
I_OH
I_OL
Topr
Min
4.75
—
—
–20
Typ
5.00
—
—
25
Max
5.25
–2.6
8
75
Unit
V
mA
mA
°C
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Symbol
min.
typ.* max.
Unit
Condition
Input voltage
Output voltage
Input current
Output current
Short-circuit output
current
V_IH
2.0
—
—
V
V_IL
—
—
0.8
V
V_OH
2.4
—
—
V
V_CC = 4.75 V, V_IH = 2 V, V_IL = 0.8 V,
I_OH = –2.6 mA
V_OL
—
—
0.4
V
I_OL = 4 mA V_CC = 4.75 V, V_IH = 2 V,
—
—
0.5
I_OL = 8 mA ^VIL ^{= 0.8 V}
I_IH
—
—
20
µA V_CC = 5.25 V, V_I = 2.7 V
I_IL
—
—
–0.4
mA V_CC = 5.25 V, V_I = 0.4 V
I_I
—
—
0.1
mA V_CC = 5.25 V, V_I = 7 V
I_OZ
—
—
—
—
20
–20
µA
V_O = 2.7 V
V_O = 0.4 V
V_CC = 5.25 V, V_IH = 2 V
I_OS
–30
—
–130
mA V_CC = 5.25 V
Supply current**
—
7
12
Condition A
I_CC
—
8.5
14
mA
Condition B ^{VCC = 5.25 V}
Input clamp voltage
V_IK
—
—
–1.5
V
V_CC = 4.75 V, I_IN = –18 mA
Notes: * V_CC = 5 V, Ta = 25°C
** I_CC is measured with the outputs open under the following conditions.
A; All inputs grounded, B; Output control at 4.5 V, all inputs grounded.
Switching Characteristics
(V_CC = 5 V, Ta = 25°C)
Item
Symbol Inputs Output
min.
typ.
max.
Unit
Condition
t_PLH
Data
Y
Propagation delay time
t_PHL
t_PLH
Select
Y
t_PHL
—
17
25
—
13
20
ns
—
30
45
C_L = 15 pF,
—
21
32
R_L = 2 kΩ
Output enable time
t_ZH
Output
Y
t_ZL
Control
—
15
28
ns
—
15
23
Output disable time
t_HZ
Output
Y
t_LZ
Control
—
—
27
18
41
27
ns
C_L = 5 pF,
R_L = 2 kΩ
Rev.3.00, Jul.15.2005, page 3 of 5