HD74AC74 Datasheet, PDF (4/10 Pages) Hitachi Semiconductor – Dual D-Type Positive Edge-Triggered Flip-Flop

HD74AC74
AC Characteristics
Item
Maximum clock
frequency
Symbol
f _max
V_CC (V)*¹
3.3
5.0
Ta = +25°C
C_L = 50 pF
Min Typ
100 125
140 160
Propagation delay
t _PLH
3.3
1.0
C_Dn or S_Dn to Q_n or Q_n
5.0
1.0
Propagation delay
t _PHL
3.3
1.0
C_Dn or S_Dn to Q_n or Q_n
5.0
1.0
Propagation delay
t _PLH
3.3
1.0
CP_n to Q_n or Q_n
5.0
1.0
Propagation delay
t _PHL
3.3
1.0
CP_n to Q_n or Q_n
5.0
1.0
Note: 1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
8.0
6.0
10.5
8.0
8.0
6.0
8.0
6.0
Max
—
—
12.0
9.0
12.0
9.5
13.5
10.0
14.0
10.0
Ta = –40°C to +85°C
C_L = 50 pF
Min
Max
95
—
125
—
1.0
13.0
1.0
10.0
1.0
13.5
1.0
10.5
1.0
16.0
1.0
10.5
1.0
14.5
1.0
10.5
Unit
MHz
ns
ns
ns
ns
AC Operating Requirements: HD74AC74
Item
Set-up time, HIGH or LOW
D_n to CP_n
Hold time, HIGH or LOW
D_n to CP_n
CP_n or C_Dn or S_Dn
Pulse width
Symbol
t _su
Ta = +25°C
C_L = 50 pF
V_CC (V)*¹ Typ
3.3
1.5
5.0
1.0
t_h
3.3
–2.0
5.0
–1.5
t_w
3.3
3.0
5.0
2.5
Recovery time
t _rec
3.3
C_Dn or S_Dn to CP
5.0
Note: 1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
–2.5
–2.0
Ta = –40°C
to +85°C
C_L = 50 pF
Guaranteed Minimum
4.0
4.5
3.0
3.0
0
0
0
0
5.5
7.0
4.5
5.0
0
0
0
0
Unit
ns
ns
ns
ns
4