Z86E61(2008) View Datasheet(PDF) - Zilog
Part Name
Description
Manufacturer
Z86E61 Datasheet PDF : 69 Pages
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Z86E61/E63
CMOS Z8 16K/32K EPROM Microcontroller
37
AC CHARACTERISTICS
Table 26. External I/O or Memory Read and Write Timing
No Symbol
1 TdA(AS)
2 TdAS(A)
3 TdAS(DR)
4 TwAS
5 TdAZ(DS)
6 TwDSR
7 TwDSW
8 TdDSR(DR)
9 ThDR(DS)
10 TdDS(A)
11 TdDS(AS)
12 TdR/W(AS)
13 TdDS(R/W)
14 TdDW(DSW)
15 TdDS(DW)
16 TdA(DR)
17 TdAS(DS)AS
18 TdDM(AS)
TA = 0°C to +70°C
16 MHza 20 MHz
Parameter
Min
Address Valid to AS Rise Delay 20
AS Rise to Address Float Delay 30
AS Rise to Read Data Req’d Valid
AS Low Width
35
Address Float to DS Fall
0
DS (Read) Low Width
135
DS (Write) Low Width
80
DS Fall to Read Data Req’d Valid
Read Data to DS Rise Hold Time 0
DS Rise to Address Active Delay 35
DS Rise to AS Fall Delay
30
R/W Valid to AS Rise Delay
20
DS Rise to R//W Not Valid
30
Write Data Valid to DS Fall (Write) 25
Delay
DS Rise to Write Data Not Valid 30
Delay
Address Valid to Read Data Req’d
Valid
AS Rise to DS Fall Delay
40
DM Valid to AS Fall Delay
30
Max Min
26
28
180
36
0
130
75
75
0
48
36
32
36
40
40
200
48
36
Max
160
Units Notes
ns Noteb,c
ns Noteb,c
ns Noteb,c,d
ns Noteb,c
ns
ns
ns
100 ns
ns
ns
ns
ns
ns
ns
Noteb,c,d
Noteb,c,d
Noteb,c,d
Noteb,c
Noteb,c
Noteb,c
Noteb,c
Noteb,c
Noteb,c
ns Noteb,c
200 ns Noteb,c,d
ns Noteb,c
ns Noteb,c
a. All timing references use 2.0V for a logic 1 and 0.8V for a logic 0.
b. Timing numbers given are for minimum TpC.
c. See Table 11
d. When using extended memory timing add 2 TpC.
PS014401-1001
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