參數(shù)資料
型號: d501gv
廠商: SIEMENS AG
英文描述: 8-Bit CMOS Microcontroller(8位 CMOS 微控制器)
中文描述: 8位CMOS微控制器(8位的CMOS微控制器)
文件頁數(shù): 7/12頁
文件大?。?/td> 47K
代理商: D501GV
Semiconductor Group
7
3 V Specification / 06.97
C501GV
External Data Memory Characteristics
External Clock Characteristics
Parameter
Symbol
Limit Values
Unit
12 MHz
Clock
Variable Clock
1/
t
CLCL
= 1 MHz to 12 MHz
min.
6
t
CLCL
– 100
6
t
CLCL
– 100
t
CLCL
– 53
min.
400
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
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
Parameter
Symbol
Limit Values
Unit
Variable Clock
min.
max.
Oscillator period
t
CLCL
t
CHCX
t
CLCX
t
CLCH
t
CHCL
83.3
1000
t
CLCL
t
CLCX
t
CLCL
t
CHCX
20
ns
High time
20
ns
Low time
20
ns
Rise time
ns
Fall time
20
ns
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