74F779 Datasheet, PDF (5/7 Pages) NXP Semiconductors – 8-bit bidirectional binary counter 3-State

AC Electrical Characteristics
Symbol
Parameter
f_MAX
t_PLH
t_PHL
t_PLH
t_PHL
t_PLH
t_PHL
t_PLH
t_PHL
t_PZH
t_PZL
t_PHZ
t_PLZ
Maximum Clock Frequency
Propagation Delay
CP to I/O_n
Propagation Delay
CP to TC
Propagation Delay
CET to TC
Propagation Delay
SN to TC
Output Enable Time
OE to I/O_n
Output Disable Time
OE to I/O_n
AC Operating Requirements
Symbol
t_S(H)
t_S(L)
t_H(H)
t_H(L)
t_S(H)
t_S(L)
t_H(H)
t_H(L)
t_S(H)
t_S(L)
t_H(H)
t_H(L)
t_W(H)
t_W(L)
Setup Time
I/O_n to CP
Hold Time
I/O_n to CP
Setup Time
S_n to CP
Hold Time
S_n to CP
Setup Time
CET to CP
Hold Time
CET to CP
Clock Pulse Width
HIGH or LOW
Parameter
T_A = +25°C
V_CC = +5.0V
C_L = 50 pF
Min
Typ
Max
100
105
3.0
5.0
8.0
5.0
7.5
11.0
5.0
7.5
9.0
5.0
9.3
10.5
2.5
3.8
5.5
4.5
6.1
8.0
3.5
6.5
12.0
3.5
7.5
12.0
3.0
5.0
7.0
5.0
8.0
10.0
1.0
4.0
6.5
1.0
3.7
6.5
T_A = 0°C to +70°C
V_CC = +5.0V
C_L = 50 pF
Min
Max
90
3.0
8.5
5.0
11.0
5.0
10.0
5.0
11.5
2.5
6.0
4.5
8.5
3.5
13.0
3.5
13.0
3.0
8.0
5.0
10.5
1.0
7.0
1.0
7.0
Units
ns
ns
ns
ns
ns
ns
T_A = +25°C
V_CC = +5.0V
Min
Max
5.0
5.0
0.0
0.0
9.5
9.5
0.0
0.0
7.0
7.0
0.0
0.0
4.0
4.0
T_A = 0°C to +70°C
V_CC = +5.0V
Min
Max
5.0
5.0
0.0
0.0
10.0
10.0
0.0
0.0
7.0
7.0
0.0
0.0
4.0
4.0
Units
ns
ns
ns
ns
ns
ns
ns
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