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): 37/46頁
文件大?。?/td> 567K
代理商: SAB-C502-L20P
Semiconductor Group
36
AC Characteristics for SAB-C502-L / C502-2R
External Data Memory Characteristics
Parameter
Symbol
Limit Values
Unit
12 MHz
Clock
Variable Clock
1/
t
CLCL
= 3.5 MHz to 12 MHz
min.
6
t
CLCL
– 100
6
t
CLCL
– 100
t
CLCL
– 53
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
400
ns
WR pulse width
400
ns
Address hold after ALE
30
5
t
CLCL
– 165
2
t
CLCL
– 70
8
t
CLCL
– 150
9
t
CLCL
– 165
3
t
CLCL
+ 50
t
CLCL
+ 40
ns
RD to valid data in
252
ns
Data hold after RD
0
0
ns
Data float after RD
97
ns
ALE to valid data in
517
ns
Address to valid data in
585
3
t
CLCL
– 50
4
t
CLCL
– 130
t
CLCL
– 40
t
CLCL
– 50
7
t
CLCL
– 150
t
CLCL
– 50
ns
ALE to WR or RD
200
300
ns
Address valid to WR or RD
203
ns
WR or RD high to ALE high
43
123
ns
Data valid to WR transition
33
ns
Data setup before WR
433
ns
Data hold after WR
33
ns
Address float after RD
0
0
ns
C502
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