Z89175 Datasheet, PDF (17/68 Pages) Zilog, Inc. – Voice Processing Controllers

Zilog
AC CHARACTERISTICS
External I/O or Memory Read and Write Timing Table
No Symbol
Parameter
V_CC
Note 4
1 TdA(AS)
Address Valid to /AS Rise Delay
2 TdAS(A)
/AS Rise to Address Float Delay
3 TdAS(DR) /AS Rise to Read Data Req’d Valid
4 TwAS
/AS Low Width
5 TdAZ(DS) Address Float to /DS Fall
6 TwDSR
/DS (Read) Low Width
7 TwDSW
/DS (Write) Low Width
8 TdDSR(DR) /DS Fall to Read Data Req’d Valid
9 ThDR(DS) Read Data to /DS Rise Hold Time
10 TdDS(A)
/DS Rise to Address Active Delay
11 TdDS(AS) /DS Rise to /AS Fall Delay
12 TdR/W(AS) R//W Valid to /AS Rise Delay
13 TdDS(R/W) /DS Rise to R//W Not Valid
14 TdDW(DSW) Write Data Valid to /DS Fall (Write)
Delay
15 TdDS(DW)
/DS Rise to Write Data Not Valid
Delay
16 TdA(DR)
Address Valid to Read Data Req’d
Valid
17 TdAS(DS) /AS Rise to /DS Fall Delay
18 TdDI(DS)
Data Input Setup to /DS Rise
19 TdDM(AS) /DM Valid to /AS Fall Delay
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
Notes:
1. When using extended memory timing add 2 TpC.
2. Timing numbers given are for minimum TpC.
3. See clock cycle dependent characteristics table.
4. 5.0 V ±0.5 V.
Standard Test Load
All timing references use 0.9 VCC for a logic 1 and 0.1 VCC for a logic 0.
Z89175/Z89176
Voice Processing Controllers
2
T_A= 0°C to +70°C
Min
Max
Units
Notes
25
ns
2,3
35
ns
2,3
150
ns
1,2,3
35
ns
2,3
0
ns
125
ns
1,2,3
75
ns
1,2,3
90
ns
1,2,3
0
ns
2,3
40
ns
2,3
35
ns
2,3
25
ns
2,3
35
ns
2,3
40
ns
2,3
25
ns
2,3
180
ns
1,2,3
48
ns
2,3
50
ns
1,2,3
20
ns
2,3
DS97TAD0100
PRELIMINARY
17