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L8708H Datasheet(PDF) 13 Page - Zilog, Inc.

Part # L8708H
Description  IR/Low-Voltage Microcontroller
PDF  66 Pages
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Manufacturer  ZILOG [Zilog, Inc.]
Direct Link  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

L8708H Datasheet(HTML) 13 Page - Zilog, Inc.

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Z86L88/81/86/87/89/73
IR/Low-Voltage Microcontroller
DS96LV00800
P R E L I M I N A R Y
13
1
AC CHARACTERISTICS
Preliminary
External I/O or Memory Read and Write Timing Table
TA = 0°C to +70°C
8.0MHz
No
Symbol
Parameter
VCC
Min
Max
Units
Notes
1
TdA(AS)
Address Valid to
/AS Rising Delay
2.0V
3.9V
55
55
ns
ns
2
2
TdAS(A)
/AS Rising to Address
Float Delay
2.0V
3.9V
70
70
ns
ns
2
2
3
TdAS(DR)
/AS Rising to Read
Data Required Valid
2.0V
3.9V
400
400
ns
ns
1,2
4
TwAS
/AS Low Width
2.0V
3.9V
80
80
ns
ns
2
5
Td
Address Float to
/DS Falling
2.0V
3.9V
0
0
ns
ns
6
TwDSR
/DS (Read) Low Width
2.0V
3.9V
300
300
ns
ns
1,2
7
TwDSW
/DS (Write) Low Width
2.0V
3.9V
165
165
ns
ns
1,2
8
TdDSR(DR)
/DS Falling to Read
Data Required Valid
2.0V
3.9V
260
260
ns
ns
1,2
9
ThDR(DS)
Read Data to /DS Rising
Hold Time
2.0V
3.9V
0
0
ns
ns
2
10
TdDS(A)
/DS Rising to Address
Active Delay
2.0V
3.9V
85
95
ns
ns
2
11
TdDS(AS)
/DS Rising to /AS
Falling Delay
2.0V
3.9V
60
70
ns
ns
2
12
TdR/W(AS)
R//W Valid to /AS
Rising Delay
2.0V
3.9V
70
70
ns
ns
2
13
TdDS(R/W)
/DS Rising to
R//W Not Valid
2.0V
3.9V
70
70
ns
ns
2
14
TdDW(DSW)
Write Data Valid to /DS
Falling (Write) Delay
2.0V
3.9V
80
80
ns
ns
2
15
TdDS(DW)
/DS Rising to Write
Data Not Valid Delay
2.0V
3.9V
70
80
ns
ns
2
16
TdA(DR)
Address Valid to Read
Data Required Valid
2.0V
3.9V
475
475
ns
ns
1,2
17
TdAS(DS)
/AS Rising to
/DS Falling Delay
2.0V
3.9V
100
100
ns
ns
2
18
TdDM(AS)
/DM Valid to /AS
Falling Delay
2.0V
3.9V
55
55
ns
ns
2
19
TdDS(DM)
/DS Rise to
/DM Valid Delay
2.0V
3.9V
70
70
ns
ns
20
ThDS(A)
/DS Rise to Address
Valid Hold Time
2.0V
3.9V
70
70
ns
Notes:
1. When using extended memory timing add 2 TpC.
2. Timing numbers given are for minimum TpC.
Standard Test Load
All timing references use 0.9 VCC for a logic 1 and 0.1 VCC for a logic 0.



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