CD54HC157_08 Datasheet, PDF (5/15 Pages) Texas Instruments – High-Speed CMOS Logic Quad 2-Input Multiplexers

CD54/74HC157, CD54/74HCT157, CD54/74HC158, CD54/74HCT158
Switching Specifications Input t_r, t_f = 6ns (Continued)
PARAMETER
TEST
V_CC
SYMBOL CONDITIONS (V)
25^oC
-40^oC TO 85^oC -55^oC TO 125^oC
MIN TYP MAX MIN MAX MIN MAX UNITS
Enable to Output
t_PLH, t_PHL C_L = 50pF
2
-
- 135
-
170
-
205
ns
4.5
-
- 27
-
34
-
41
ns
HC157
HCT157
C_L =15pF
5
- 11 -
-
-
-
-
ns
- 12 -
-
-
-
-
ns
Select to Output
C_L = 50pF
t_PLH, t_PHL C_L = 50pF
6
-
- 23
-
29
-
35
ns
2
-
- 145
-
180
-
220
ns
4.5
-
- 29
-
36
-
44
ns
HC157
HCT157
C_L =15pF
5
- 12 -
-
-
-
-
ns
- 15 -
-
-
-
-
ns
Power Dissipation
Capacitance (Notes 3, 4)
C_PD
C_L = 50pF
-
6
-
- 25
-
31
-
38
ns
5
HC157
- 62 -
-
-
-
-
pF
HCT157
- 70 -
-
-
-
-
pF
HC/HCT158 TYPES
Data to Output
t_PLH, t_PHL C_L = 50pF
2
-
- 140
-
175
-
210
ns
4.5
-
- 28
-
35
-
42
HC158
HCT 158
C_L =15pF
5
- 11 -
-
-
-
-
ns
- 13 -
-
-
-
-
ns
Enable to Output
C_L = 50pF
t_PLH, t_PHL C_L = 50pF
6
-
- 24
-
30
-
36
ns
2
-
- 160
-
200
-
240
ns
4.5
-
- 32
-
40
-
48
ns
HC158
HCT 158
C_L =15pF
5
- 13 -
-
-
-
-
ns
- 15 -
-
-
-
-
ns
Select to Output
C_L = 50pF
t_PLH, t_PHL C_L = 50pF
6
-
- 27
-
34
-
41
ns
2
-
- 150
-
190
-
225
ns
4.5
-
- 30
-
38
-
45
ns
HC158
HCT 158
C_L =15pF
5
- 12 -
-
-
-
-
ns
- 14 -
-
-
-
-
ns
C_L = 50pF
6
-
- 26
-
33
-
38
ns
Output Transition Time
t_TLH, t_THL C_L = 50pF
2
-
- 75
-
95
-
110
ns
4.5
-
- 15
-
19
-
22
ns
6
-
- 13
-
16
-
19
ns
Power Dissipation
C_PD
-
5
Capacitance (Notes 3, 4)
HC158
- 35 -
-
-
-
-
pF
HCT 158
- 35 -
-
-
-
-
pF
Input Capacitance
C_IN
C_L = 50pF
-
-
- 10
-
10
-
NOTES:
3. C_PD is used to determine the dynamic power consumption, per multiplexer.
4. P_D = V_CC2 f_i (C_PD + C_L) where f_i = input frequency, C_L = output load capacitance, V_CC = supply voltage.
10
pF
5