參數(shù)資料
型號: SAB-C502-L20P
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8-BIT, 10 MHz, MICROCONTROLLER, PDIP40
文件頁數(shù): 40/46頁
文件大?。?/td> 567K
代理商: SAB-C502-L20P
Semiconductor Group
39
C502
AC Characteristics for SAB-C502-L20 / C502-2R20
External Data Memory Characteristics
Parameter
Symbol
Limit Values
Unit
18 MHz
Clock
Variable Clock
1/
t
CLCL
= 3.5 MHz to 20 MHz
min.
6
t
CLCL
– 100
6
t
CLCL
– 100
t
CLCL
– 30
min.
max.
max.
RD pulse width
t
RLRH
t
WLWH
t
LLAX2
t
RLDV
t
RHDX
t
RHDZ
t
LLDV
t
AVDV
t
LLWL
t
AVWL
t
WHLH
t
QVWX
t
QVWH
t
WHQX
t
RLAZ
200
ns
WR pulse width
200
ns
Address hold after ALE
20
5
t
CLCL
– 95
2
t
CLCL
– 24
8
t
CLCL
– 150
9
t
CLCL
– 165
3
t
CLCL
+ 50
t
CLCL
+ 30
ns
RD to valid data in
155
ns
Data hold after RD
0
0
ns
Data float after RD
76
ns
ALE to valid data in
250
ns
Address to valid data in
285
3
t
CLCL
– 50
4
t
CLCL
– 130
t
CLCL
– 30
t
CLCL
– 45
7
t
CLCL
– 150
t
CLCL
– 40
ns
ALE to WR or RD
100
200
ns
Address valid to WR or RD
70
ns
WR or RD high to ALE high
20
80
ns
Data valid to WR transition
5
ns
Data setup before WR
200
ns
Data hold after WR
10
ns
Address float after RD
0
0
ns
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