HD74AC273 Datasheet, PDF (4/10 Pages) Hitachi Semiconductor – Octal D Flip-Flop

HD74AC273
AC Characteristics: HD74AC273
Item
Maximum clock
frequency
Symbol
f _max
V_CC (V)*¹
3.3
5.0
Ta = +25°C
C_L = 50 pF
Min Typ
90
125
140 175
Propagation delay
t _PLH
3.3
Clock to output
5.0
1.0
7.0
1.0
5.5
Propagation delay
t _PHL
3.3
Clock to output
5.0
1.0
7.0
1.0
5.0
Propagation delay
t _PHL
3.3
MR to output
5.0
1.0
7.0
1.0
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
Max
—
—
12.5
9.0
13.0
10.0
13.0
10.0
Ta = –40°C to +85°C
C_L = 50 pF
Min
Max
75
—
125
—
1.0
14.0
1.0
10.0
1.0
14.5
1.0
11.0
1.0
14.0
1.0
10.5
Unit
MHz
ns
ns
ns
AC Operating Requirements: HD74AC273
Item
Setup time, HIGH or LOW
Data to CP
Symbol
t _su
Ta = +25°C
C_L = 50 pF
V_CC (V)*¹ Typ
3.3
3.5
5.0
2.5
Hold time, HIGH or LOW
t_h
Data to CP
3.3
–2.0
5.0
–1.0
Clock pulse width
HIGH or LOW
t_w
3.3
3.5
5.0
2.5
MR Pulse width
HIGH or LOW
t_w
3.3
2.0
5.0
1.5
Recovery time
MR to CP
t _rec
3.3
1.5
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
Ta = –40°C
to +85°C
C_L = 50 pF
Guaranteed Minimum
5.5
6.0
4.0
4.5
0.0
0.0
1.0
1.0
5.5
6.0
4.0
4.5
5.5
6.0
4.0
4.5
3.5
4.5
2.0
3.0
Unit
ns
ns
ns
ns
ns
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