ST7578
System Bus Read/Write Characteristics 1 (For the 6800 Series MPU)
(VDD = 3.3V , Ta =-30~85°C)
Item
Address setup time
Signal
Symbol
tAW6
Condition
Min.
80
Max.
—
Unit
A0
Address hold time
tAH6
10
—
System cycle time
tCYC6
tEWLW
tEWHW
tEWLR
tEWHR
tDS6
240
70
—
Enable L pulse width (WRITE)
Enable H pulse width (WRITE)
Enable L pulse width (READ)
Enable H pulse width (READ)
Write data setup time
—
E
50
—
ns
70
—
130
60
—
—
70
50
Write data hold time
tDH6
10
D[7:0]
Read data access time
Read data output disable time
tACC6
tOH6
CL = 16 pF
CL = 16 pF
—
10
(VDD = 2.8V , Ta =-30~85°C)
Item
Signal
Symbol
tAW6
Condition
Min.
100
15
Max.
—
Unit
Address setup time
A0
Address hold time
tAH6
—
System cycle time
tCYC6
tEWLW
tEWHW
tEWLR
tEWHR
tDS6
340
120
100
120
100
120
15
—
Enable L pulse width (WRITE)
Enable H pulse width (WRITE)
Enable L pulse width (READ)
Enable H pulse width (READ)
Write data setup time
—
E
—
ns
—
—
—
Write data hold time
tDH6
—
D[7:0]
—
Read data access time
Read data output disable time
tACC6
tOH6
CL = 16 pF
CL = 16 pF
140
100
10
Ver 1.2
39/52
2007/04/30
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
