Read Timing Characteristics (Figure 3.)
Note: tr, tf = 10 to 30ns.
CHIP SELECTS,
R E G I S T E R
PERIPHERAL
DATA
DATA BUS
Figure 3. Read Timing Characteristics
UM6522
Write Timing Characteristics (Figure 4.)
- -
Min.
.
Symbol
Parameter
Unit
Min.
1
Max.
50
Max.
50
0.50
0.22
90
0
Cycle Time
Pulse Width
25
0.44
180
0
Address Set-Up Time
Address Hold Time
Set-Up Time
ns
ns
ns
ns
ns
ns
180
0
90
0
Hold Time
Data Bus Set- Up Time
Data Bus Hold Time
Peripheral Data Delay Time
150
10
300
10
1.0
2.0
1
Peripheral Data Delay Time
CMOS Levels
2.0
Note: tr,
= 10 to 30ns.
CLOCK
CHIP SELECTS.
REGISTER SELECTS.
DATA BUS
PERIPHERAL
DATA
4.
Timing Characteristics
5 - 2 0
UMC [ UMC CORPORATION ]
