HD74HC258 Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – Quad. 2-to-1-line Data Selectors/Multiplexers(with 3-state outputs)

HD74HC258
Switching Characteristics
Item
Symbol V_CC (V)
Propagation delay tPLH
2.0
time
t_PHL
4.5
6.0
2.0
4.5
6.0
Output enable time t_ZL
2.0
4.5
6.0
t_ZH
2.0
4.5
6.0
Output disable
time
t_LZ
2.0
4.5
6.0
t_HZ
2.0
4.5
6.0
Output rise/fall
time
t_TLH
2.0
t_THL
4.5
6.0
Input capacitance Cin
—
Ta = 25°C
Min Typ Max
— — 115
— 11 23
— — 20
— — 115
— 13 23
— — 20
— — 150
— 11 30
— — 26
— — 150
— 13 30
— — 26
— — 150
— 13 30
— — 26
— — 150
— 18 30
— — 26
— — 60
— 4 12
— — 10
— 5 10
(C_L = 50 pF, Input t_r = t_f = 6 ns)
Ta = –40 to +85°C
Unit
Min
Max
Test Conditions
—
145 ns Data to Y
—
29
—
25
—
145 ns Select to Y
—
29
—
25
—
190 ns
—
38
—
33
—
190 ns
—
38
—
33
—
190 ns
—
38
—
33
—
190 ns
—
38
—
33
—
75
ns
—
15
—
13
—
10 pF
Test Circuit
VCC
VCC
Output
Input
Pulse Generator
Zout = 50 Ω
OC
1Y
1A to 4A
Output
2Y
Output
1B to 4B
3Y
Output
1 k Ω _S1
C_L = 50 pF
OPEN
GND
V_CC
Same as Load Circuit
Same as Load Circuit
S
4Y
Same as Load Circuit
TEST
Note : 1. C_L includes probe and jig capacitance.
t_PLH / t _PHL
t_ZH/ t _HZ
t_ZL / t _LZ
S1
OPEN
GND
V_CC
Rev.2.00 Jan 31, 2006 page 4 of 7