HD74AC298 Datasheet, PDF (4/10 Pages) Hitachi Semiconductor – Quad 2-Input Multiplexer with Storage

HD74AC298/HD74ACT298
AC Operating Requirements: HD74AC298
Item
Setup time, HIGH or LOW
D or S to CP
Symbol
t _su
Ta = +25°C
C_L = 50 pF
V_CC (V)*¹ Typ
3.3
4.5
5.0
2.5
Hold time, HIGH or LOW
t_h
D_n to CP_n
Hold time, HIGH or LOW
t_h
S to CP
3.3
–2.0
5.0
–1.0
3.3
–3.0
5.0
–1.5
Pulse with
t_w
3.3
3.0
5.0
3.0
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
7.0
4.5
5.5
0.0
0.0
0.0
0.0
0.5
0.5
0.5
0.5
5.5
7.0
4.5
5.0
Unit
ns
ns
ns
ns
AC Characteristics: HD74ACT298
Item
Maximum count
frequency
Symbol V_CC (V)*¹
f _max
5.0
Ta = +25°C
C_L = 50 pF
Min Typ
70
—
Propagation delay
t _PLH
5.0
CP to Q
1.0
6.0
Propagation delay
t _PHL
5.0
CP to Q
1.0
6.5
Note: 1. Voltage Range 5.0 is 5.0 V ± 0.5 V
Max
—
10.0
10.0
Ta = –40°C to +85°C
C_L = 50 pF
Min
Max
60
—
Unit
MHz
1.0
11.0
ns
1.0
11.0
4