z85c30 ZiLOG Semiconductor, z85c30 Datasheet - Page 61

• Manufacturer Part Number: z85c30
• Description: Cmos Scc Serial Communications Controller
• Manufacturer: ZiLOG Semiconductor

Table 10. Z80C30 Read/Write Timing
PS011705-0608
No
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Symbol
TsCS1(DS)
ThCS1(DS)
TsiA(AS)
ThIA(AS)
TsRWR(DS)
ThRW(DS)
TsRWW(DS)
TdAS(DS)
TwDSI
TrC
TsA(AS)
ThA(AS)
TsDW(DS)
ThDW(DS)
TdDS(DA)
TdDSr(DR)
TdDSf(DR)
TdAS(DR)
TdDS(DRz)
TdA(DR)
TdDS(W)
TdDSf(REQ)
TdDSr(REQ)
TdAS(INT)
TdAS(DSA)
TwDSA
Parameter
CS1 to DS Fall Setup Time
CS1 to DS Rise Hold Time
INTACK to AS Rise Setup Time
INTACK to AS Rise Hold Time
R/W (Read) to DS Fall Setup Time
R/W to DS Rise Hold Time
R/W (Write) to DS Fall Setup Time
AS Rise to DS Fall Delay
DS Low Width
Valid Access Recovery Time
Address to AS Rise Setup Time
Address to AS Rise Hold Time
Write Data to DS Fall Setup Time
Write Data to DS Rise Hold Time
DS Fall to Data Active Delay
DS Rise to Read Data Not Valid Delay 0
DS Fall to Read Data Valid Delay
AS Rise to Read Data Valid Delay
DS Rise to Read Data Float Delay
Address Required Valid to Read Data
Valid Delay
DS Fall to Wait Valid Delay
DS Fall to W/REQ Not Valid Delay
DS Fall to DTR/REQ Not Valid Delay
AS Rise to INT Valid Delay
AS Rise to DS Fall (Acknowledge)
Delay
DS (Acknowledge) Low Width
f
a
(continued)
CMOS SCC Serial Communications Controller
2
e
5
2
c
2
2
d
8 MHz
Min
65
30
10
150
65
0
0
30
150
4TcPC
10
25
15
0
0
250
150
Max
140
250
40
260
170
170
4TcPC
500
Product Specification
Electrical Characteristics
10 MHz
Min
50
20
10
125
50
0
0
20
125
4TcPC
10
20
10
0
0
0
225
125
Max
120
190
35
210
160
160
4TcPC
500
57