Z86193 Datasheet, PDF (7/11 Pages) Zilog, Inc. – CMOS Z8 MICROCONTROLLER MULTIPLIER/DIVIDER/SEARCH/MERGE

PRELIMINARY
AC CHARACTERISTICS
External I/O or Memory Read/Write Timing Table
No Sym
Parameter
Max
1
TdA(ALE)
Address Valid To ALE Fall Delay
8
2
ThALE(A)
ALE Fall To Address Hold Time
15
3
TdALE(DI)
ALE Fall To Data In Req’d Valid Delay
4
TwALE
ALE HIGH Width
10
5
TdAZ(RD)
Address Float To /RD Fall
0
6
TwRD
/RD Low Width
60
7
TwWR
/WR Low Width
35
8
TdRD(DI)
/RD Fall To Data in Req'd Valid Delay
9
ThRD(DI)
/RD Rise to Data In Hold Time
0
10 TdRDWR(A) /RD or /WR Rise To Address Active Delay
20
11 TdRDWR(ALE) /RD or /WR Rise To ALE Delay
16
14 TdDO(WR) Data Out To /WR Fall Delay
12
15 ThWR(DO) /WR Rise To Data Out Hold Time
12
16 TdA(DI)
Address Valid To Data In Req’d Valid Delay
17 TdALE(RD) ALE Fall To /RD Fall Delay
20
19 TdDM(ALE) /DM Valid To ALE Fall Delay
10
20 TdRDWR(DM) /RD or /WR Rise To /DM Valid Delay
15
21 ThRDWR(A) /RD or /WR Rise To Adress Valid Hold Time
15
22 TdXT(SCR) XTAL Falling To SCLK Rising
23 TdXT(SCF) XTAL Falling To SCLK Falling
24 TdXT(RDF) XTAL Falling To /RD Falling
25 TdXT(RDR) XTAL Falling To /RD Rising
26 TdXT(WRF) XTAL Falling To/WR Falling
27 TdXT(WRR) XTAL Falling To/WR Rising
28 TsW(XT)
Wait Set Up Time
29 ThW(XT)
Wait Hold Time
30 TsW
Wait Width (One Wait Time)
Notes:
1. Values based on external clock drive with a clock frequency.
2. Values are preliminary and are to be characterized.
3. When using extended memory timing, add 2TpC.
4. Timing numbers are given for minimum TpC.
Max
75
40
90
30
30
40
30
40
30
Z86193
CPS DC-4206-01
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
7