JH22176220A Datasheet, PDF (12/23 Pages) Jewel Hill Electronic – SPECIFICATIONS FOR

JEWEL HILL ELECTRONIC CO.,LTD.
9.Timing Characteristics
9.1. 80-System bus interface operation
9.2. Timing Characteristics
Normal Write Mode, IOVcc=1.65V~3.3V,Vcc=2.5V~3.3V
Parameter
Symbol
Unit
Min.
Bus cycle time write
t^B CYCW^B
ns
125
Bus cycle time read
tCYCR
ns
450
Write low-level pulse width
PWLW
ns
45
Read low-level pulse width
PWLR
ns
170
Write high-level pulse width
PWHW
ns
70
Read high-level pulse width
PWHR
ns
250
Write/Read rise/fall time
tWR,wRf
ns
-
Setup time Write
tAS
ns
0
Setup time Read
tAS
ns
10
Address hold time
tAH
ns
2
Write data setup time
tDSW
ns
25
Write data hold time
tH
ns
10
Read data delay time
tDDR
ns
-
Read data hold time
tDHR
ns
5
Max. Uni
t
-
-
-
-
-
-
-
-
-
-
-
-
-
25
-
-
-
-
-
-
-
-
-
-
-
150
-
-
JH22176220A VER: 1.0
- 11 -
Issue date: 2013/08/15