Datasheet

6
AC Timing Characteristics over Operating Temperature Range at V
DD
= 4.5 V
Parameter Symbol Min Units
Address Setup t
AS
10 ns
Address Hold t
AH
40 ns
Data Setup t
DS
50 ns
Data Hold t
DH
40 ns
Chip Enable Setup t
CES
0 ns
Chip Enable Hold t
CEH
0 ns
Write Time t
W
75 ns
Clear t
CLR
10 µs
Clear Disable t
CLRD
1 µs
Timing Diagram Enlarged Character Font
CE
1
t
CES
t
AS
t
W
t
AH
t
CEH
2.0 V
0.8 V
2.0 V
0.8 V
2.0 V
0.8 V
2.0 V
0.8 V
t
DS
t
DH
t
CLRD
t
CLR
2.0 V
0.8 V
CE
2
A
0
– A
1
, CU
WR
D
0
– D
6
CLR
0.80 (0.031)
TYP.
5.08
(0.200)
0.80 (0.031)
TYP.
0.25 (0.010)
TYP.
3.43 (0.135)
Notes:
1. Unless otherwise specied, the tolerance on all
dimensions is ± 0.254 mm (0.010 inch).
2. Dimensions are in mm (inches).