HD74AC670 Datasheet, PDF (6/10 Pages) Hitachi Semiconductor – 4 x 4 Register File with 3-State Output

HD74AC670
AC Operating Requirements: HD74AC670
Item
Symbol
V_CC (V)*¹
Ta = +25°C
C_L = 50 pF
Typ
Setup time
Data to W_E
t _su
3.3
3.0
5.0
2.0
Setup time
3.3
3.0
W_A1 or W_A0 to W_E
5.0
2.0
Hold time
W_E to Data
t_h
3.3
3.0
5.0
2.5
Hold time
3.3
3.0
W_E to W_A1 or W_A2
5.0
2.5
Pulse width
W_E
t_w
3.3
3.5
5.0
2.5
Latch width
t _latch
3.3
0.5
W_E to 1
5.0
0.5
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
5.5
6.0
4.5
4.5
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
5.5
7.0
4.5
5.0
10.0
10.0
10.0
10.0
Unit
ns
ns
ns
ns
ns
ns
Capacitance
Item
Input capacitance
Power dissipation capacitance
Symbol
Typ
C_IN
4.5
C_PD
60
Unit
pF
pF
Condition
V_CC = 5.5 V
V_CC = 5.0 V
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