Z8523L08VEG Datasheet, PDF (89/118 Pages) Zilog, Inc. – Enhanced Serial Communications Controller

Z80230/Z85230/L
Product Specification
84
Table 45. Z80230 AC Characteristics (Continued)
10 MHz
No Symbol
Parameter
Min. Max.
13 TwDSI
DS Low Width
125
14 TrC
Valid Access Recovery Time
4
15 TsA (AS) Address to AS Rise Setup Time 10
16 ThA (AS) Address to AS Rise Hold Time 20
17 TsDW (DS) Write Data to DS Fall Setup Time 10
18 ThDW (DS) Write Data to DS Rise Hold Time 0
19 TdDS (DA) DS Fall to Data Active Delay
0
20 TdDSr (DR) DS Rise to Read Data Not Valid 0
Delay
21 TdDSf (DR) DS Fall to Data Active Delay
120
22 TdAS (DR) AS Rise to Read Data Valid Delay
190
23 TdDS (DRz) DS Rise to Read Data Float
35
Delay
24 TdA (DR) Address Required Valid to Read
210
Data Valid Delay
25 TdDS (W) DS Fall to Wait Valid Delay
160
26 TdDSf
DS Fall to W/REQ Not Valid
160
(REQ)
Delay
27 TdDSr
DS Fall to DTR/REQ Not Valid
4
(REQ)
Delay
28 TdAS (INT) AS Rise to INT Valid Delay
500
29 TdAS (DSA) AS Rise to DS Fall
225
(Acknowledge) Hold Time
30 TsDSA
DS (Acknowledge) Low Width 125
31 TdDSA (DR) DS Fall (Acknowledge) to Read 120
Data Valid Delay
32 TsIEI (DSA) IEI to DS Fall (Acknowledge)
80
Setup time
33 ThIEI (DSA) IEI to DS Rise (Acknowledge) 0
Hold Time
16 MHz
Min. Max
80
4
10
10
10
0
0
0
70
110
20
100
60
60
4
175
50
75
70
50
0
Notes
8
2, 9
1, 8
1, 8
8
8
8
8
8
8
3, 8
4, 8
8
9
5
8
8
8
8
PS005308-0609
Electrical Characteristics