參數(shù)資料
型號: SAB-C515-1RM
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, MROM, 16 MHz, MICROCONTROLLER, PQFP80
文件頁數(shù): 46/55頁
文件大?。?/td> 268K
代理商: SAB-C515-1RM
C515
Semiconductor Group
46
1997-08-01
AC Characteristics (16 MHz) (cont’d)
External Data Memory Characteristics
External Clock Drive Characteristics
Parameter
Symbol
Limit Values
Unit
16 MHz
Clock
Variable Clock
1/
t
CLCL
= 1 MHz to 16 MHz
min.
6
t
CLCL
– 100
6
t
CLCL
– 100
2t
CLCL
– 35
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
275
ns
WR pulse width
275
ns
Address hold after ALE
90
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
148
ns
Data hold after RD
0
0
ns
Data float after RD
55
ns
ALE to valid data in
350
ns
Address to valid data in
398
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
138
238
ns
Address valid to WR or RD
120
ns
WR or RD high to ALE high
23
103
ns
Data valid to WR transition
13
ns
Data setup before WR
288
ns
Data hold after WR
13
ns
Address float after RD
0
0
ns
Parameter
Symbol
Limit Values
Unit
Variable Clock
Freq. = 1 MHz to 16 MHz
min.
max.
Oscillator period
t
CLCL
t
CHCX
t
CLCX
t
CLCH
t
CHCL
62.5
1000
t
CLCL
t
CLCX
t
CLCL
t
CHCX
15
ns
High time
15
ns
Low time
15
ns
Rise time
ns
Fall time
15
ns
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