Z86C27 Datasheet, PDF (9/9 Pages) Zilog, Inc. – CMOS Z8 MICROCONTROLLER

AC CHARACTERISTICS
Unique to Z86C97, T_A=0°C to +70°C; V_CC=+4.5 V to +5.5 V; F_OSC = 4 MHz
No Symbol
Parameter
Min
Max
1 TdA(AS)
2 TdAS(AS)
3 TdAS(DR)
4 TwAS
Address Valid to /AS High Delay
/AS High to Address Float Delay
/AS High to Read Data Required Valid
/AS Low Width
35
45
250
55
5 TdAZ(DS)
Address Float to /DS Low
6 TwDSR
/DS (Read) Low Width
7 TwDSW
DS (Write) Low Width
8 TdDSR(DR) /DS Low to Read Data Required Valid
0
185
110
130
9 ThDR(DS)
10 TdDS(A)
11 TdDS(AS)
12 TdR/W(AS)
Read Data to /DS High Hold
/DS High to Address Active Delay
/DS High to /AS Low Delay
R//W Valid to /AS High Delay
5
55
55
35
13 TdDS(R/W) /DS High to R//W Not Valid
55
14 TdDW(DSW) Write Data Valid to /DS Low Delay
35
15 TdDS(DW) /DS High to Write Data Not Valid
55
16 TdA(DR)
Address Valid to Read Data Required Valid
330
17 TdAS(DS)
/AS High to /DS Low Delay
65
18 TdDI(DS)
Data Input Setup to /DS High
75
Notes:
[1] When using extended memory timing, for parameters 3, 6, 7, 8, and 16, add 2 TpC (250 ns @ 4.0 MHz).
[2] Min and Max times are in nanoseconds unless otherwise noted.
Z86C27/C97
CPS DC-2974-04
Unit
Notes
ns
[2]
ns
[2]
ns
[1,2]
ns
[2]
ns
[2]
ns
[1,2]
ns
[1,2]
ns
[1,2]
ns
ns
[2]
ns
[2]
ns
[2]
ns
[2]
ns
[2]
ns
[2]
ns
[1,2]
ns
[2]
ns
[1]
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