Z8523L08VEG Datasheet, PDF (95/118 Pages) Zilog, Inc. – Enhanced Serial Communications Controller

Z80230/Z85230/L
Product Specification
90
Table 47 lists the Z85230/L Read and Write AC characteristics details.
Table 47. Z85230/L AC Characteristics (20MHz applies only to Z85230)
8.5 MHz
10 MHz
16 MHz
20 MHz
No Symbol
Parameter
Min Max Min Max Min Max Min Max Notes
1 TwPCl
PCLK Low Width 45 1000 40 1000 26 1000 22 1000 6
2 TxPCh
PCLK High Width 45 1000 40 1000 26 1000 22 1000 6
3 TfPC
PCLK Fall Time
10
10
5
5
6
4 TrPC
PCLK Rise Time
10
10
5
5
6
5 TcPc
PCLK Cycle Time 118 2000 100 2000 61 2000 50 2000 6
6 TsA
Address to WR fall 66
50
35
30
6
Setup Time
7 ThA (WR) Address to WR 0
0
0
0
6
Rise Hold Time
8 TsA (RD) Address to RD Fall 66
50
35
30
6
Setup Time
9 ThA (RD) Address to RD
0
0
0
0
6
Rise Hold Time
10 TsIA (PC) INTACK to PCLK 20
20
15
15
6
Rise Setup Time
11 TsIAi (WR) INTACK to WR 140
130
70
65
1, 6
Fall Setup Time
12 ThIA (WR) INTACK to WR 0
0
0
0
6
Rise Hold Time
13 TsIAi (RD) INTACK to RD Fall 140
130
70
65
1, 6
Setup Time
14 ThIA (RD) INTACK to RD
0
0
0
0
6
Rise Hold Time
15 ThIA (PC) INTACK to PCLK 38
30
15
15
6
Rise Hold Time
16 TsCEI (WR) CE Low to WR Fall 0
0
0
0
6
Setup Time
17 ThCE (WR) CE to WR Rise 0
0
0
0
6
Hold Time
PS005308-0609
Electrical Characteristics