3-10
EF1-4 Set Up
t
SU
5
5
-30
20
-30
0
ns
5
10
-20
30
-
-
ns
10
10
-10
40
-
-
ns
EF1-4 Hold
t
H
(Note 2)
5
5
150
200
100
150
ns
5
10
100
150
-
-
ns
10
10
75
100
-
-
ns
Minimum Pulse Width Times
CLEAR Pulse Width
t
WL
(Note 2)
5
5
150
300
100
150
ns
5
10
100
200
-
-
ns
10
10
75
150
-
-
ns
CLOCK Pulse Width
t
WL
5
5
125
150
90
100
ns
5
10
100
125
-
-
ns
10
10
60
75
-
-
ns
NOTES:
1. Typical values are for T
A
= +25
o
C and nominal V
DD
.
2. Maximum limits of minimum characteristics are the values above which all devices function.
Timing Specifications
as a function of T(T = 1/f
CLOCK
) at T
A
= -40 to +85
o
C, Except as Noted
PARAMETERS
SYMBOL
TEST CONDITIONS
CDP1802A,
CDP1802AC
CDP1802BC
UNITS
V
CC
(V)
V
DD
(V)
MIN
(NOTE 1)
TYP
MIN
(NOTE 1)
TYP
High-Order Memory-Address Byte
Set Up to TPA
Time
t
SU
5
5
2T-550
2T-400
2T-325
2T-275
ns
5
10
2T-350
2T250
-
-
ns
10
10
2T-250
2T-200
-
-
ns
High-Order Memory-Address Byte
Hold After TPA Time
t
H
5
5
t/2-25
T/2-15
T/2-25
T/2-15
ns
5
10
T/2-35
T/2-25
-
-
ns
10
10
T/2-10
T/2-+0
-
-
ns
Low-Order Memory-Address Byte
Hold After WR Time
t
H
5
5
T-30
T+0
T-30
T+0
ns
5
10
T-20
T+0
-
-
ns
10
10
T-10
T+0
-
-
ns
CPU Data to Bus Hold After WR
Time
t
H
5
5
T-200
T-150
T-175
T-125
ns
5
10
T-150
T-100
-
-
ns
10
10
T-100
T-50
-
-
ns
Dynamic Electrical Specifications
T
A
= -40
o
C to +85
o
C, C
L
= 50pF, V
DD
±
5%, Except as Noted (Continued)
PARAMETER
SYMBOL
TEST
CONDITIONS
CDP1802A,
CDP1802AC
CDP1802BC
UNITS
V
CC
(V)
V
DD
(V)
(NOTE 1)
TYP
MAX
(NOTE 1)
TYP
MAX
CDP1802A, CDP1802AC, CDP1802BC
