Seiko Instruments G1216B1N000-3D0E - Manual (Page 18)

AN.No.G1216B1N000-3D0E
- 15 -
3.2 Timing Characteristics
t
f
t
CYC
t
CYC
R / W
2.4V
0.4V
t
DDR
t
DHR
t
AH
t
AH
2.0V
0.8V
t
AS
t
AS
2.0V
0.8V
t
DHW
t
DSW
t
AS
t
AS 2.0V
0.8V
t
AH
t
AH
t
r
2.0V
0.8V
P
WEL
2.0V
0.8V
P
WEH
D
1
Test point
C R
R
L
D
2
D
3
D
4



25
25



320


1000
450
450


140
10
200

10
20
t
CYC
P
WEH
P
WEL
t
r
t
f
t
AS
t
AH
t
DSW
t
DDR
t
DHW
t
DHR










 ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1
2, 3
1
2
E cycle time
E pulse width (H)
E pulse width (L)
E rise time
E fall time
Address setup time
Address hold time
Data setup time
Data delay time
Data hold time during write
Data hold time during read
Note unit Max. Typ. Min. Symbol Item
Note 1: When the MPU writes:
Note 3: Load circuits (DB
0
to DB
7
)
E
t
f
t
r
P
WEL
2.0V
0.8V
P
WEH
Note 2: When the MPU reads:
DB
0
to DB
7
R
L
= 2.4 k 
R = 11 k 
C = 130 pF (including jig capacity)
Diodes D1 to D4 are 1S2074 H .
E
DB
0
to DB
7
R / W
CS1, CS2
D/I CS1, CS2
D/I
2.0V
0.8V