
GMS81508/16
65
4.5.4. Bus Holding Timing
( Vdd = 5.0V
±
10%, Vss = 0
, Ta = -20
85
,f (Xin) = 8
)
Parameter
Pin
Symbol
Unit
SPECIFICATION
etc
MIN.
TYP.
MAX.
BRQ Setup Time
BRQ
tSUB
tsys
100
-
BAK Delay Time
BAK
tdBA
tsys
-
50
BAK Release Delay Time
BAK
tdRBA
tsys
-
220
Bus(Address,Data) Control Release
Delay Time
D0 ~ D7
A0 ~ A15
Rd,Wt,R/W
tdRA
tsys
-
210
Timing Chart
Instruction Ececution
Holding Cycle
Instruction Ececution
0.2Vdd
0.2Vdd
0.2Vdd
0.2Vdd
0.8Vdd
0.8Vdd
0.2Vdd
tdBA
tsuB
tsuB
tdRBA
tdRA
Hi-Z
C
SYNC
BRQ
BAQ
D0~D7
A0~A15
Rd
Wt
R/W