z85c30 ZiLOG Semiconductor, z85c30 Datasheet - Page 58

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

Table 8. Z85C30 System Timing Table (continued)
Table 9. Z85C30 Read/Write Timing
PS011705-0608
No Symbol
4
5
6
7
8
9a TdSY(INT)
9b TdSY(INT)
10 TdEXT(INT)
a.
b.
c.
d.
e.
No
1
2
3
4
5
6
7
8
9
10
Open-drain output, measured with open-drain test load.
RxC is RTxC or TRxC, whichever is supplying the receive clock.
Units equal to TcPc.
TxC is TRxC or RTxC whichever is supplying the transmit clock.
Units equal to AS.
TsRXC(INT)
TdTXC(REQ)
TdTXC(W)
TdTXC(DRQ)
TdTXC(INT)
Symbol
TwPCI
TwPCh
TfPC
TrPC
TsA(WR)
ThA(WR)
TsA(RD)
ThA(RD)
TsiA(PC)
TcPC
Parameter
PCLK Low Width
PCLK High Width
PCLK Fail Time
PCLK Rise Time
PCLK Cycle Time
Address to WR Fail Setup Time
Address to WR Rise Hold Time
Address to RD Fall Setup Time
Address to RD Rise Hold Time
INTACK to PCLK Rise Setup Time
Parameter
RxC High to INT Valid
TxC Low to W/REQ Valid
TxC Low to Wait Inactive
TxC Low to DTR/REQ Valid
TxC Low to INT Valid
SYNC to INT Valid
SYNC to INT Valid
DCD or CTS to INT Valid
2,3,e
2,3
2,3,4
1,2,3
2,3,4
2,3
2,d
3,4
CMOS SCC Serial Communications Controller
8.5 MHz
Min
66
0
66
0
20
45
45
118
8.5 MHz
Min
10
5
5
4
6
2
2
2
Max
2000
2000
10
10
4000
Max
16
8
11
7
10
6
3
6
10 MHz
Min
40
100
50
0
50
0
20
40
10 MHz
Min
10
5
5
4
6
2
2
2
Product Specification
Electrical Characteristics
Max
2000
2000
10
10
4000
Max
16
8
11
7
10
6
3
6
16 MHz
Min
26
26
61
35
0
35
0
15
16 MHz
Min Max
10
5
5
4
6
2
2
2
Max
2000
2000
5
5
4000
16
8
11
7
10
6
3
6
54