参数资料
型号: SAB80C537-M-T85
厂商: SIEMENS A G
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 12 MHz, MICROCONTROLLER, PQFP100
封装: PLASTIC, MQFP-100
文件页数: 47/61页
文件大小: 1054K
代理商: SAB80C537-M-T85
SAB 80C517/80C537
Semiconductor Group
50
AC Characteristics (cont’d)
Parameter
Symbol
Limit Values
Unit
12 MHz Clock
Variable Clock
1/t CLCL = 3.5 MHz to 12 MHz
min
max.
min.
max.
External Data Memory Characteristics
RD pulse width
tRLRH
400
6 tCLCL – 100
ns
WR pulse width
tWLWH
400
6 tCLCL – 100
ns
Address hold after ALE
tLLAX2
132
2 tCLCL – 30
ns
RD to valid instr in
tRLDV
252
5 tCLCL – 165
ns
Data hold after RD
tRHDX
0–0
ns
Data oat after RD
tRHDZ
–97
2 tCLCL –70
ns
ALE to valid data in
tLLDV
517
8 tCLCL – 150
ns
Address to valid data in
tAVDV
585
9 tCLCL – 165
ns
ALE to WR or RD
tLLWL
200
300
3 tCLCL – 50
3 tCLCL + 50
ns
WR or RD high to ALE
high
tWHLH
43
123
tCLCL –40
tCLCL +40
ns
Address valid to WR
tAVWL
203
4 tCLCL – 130
ns
Data valid to WR
transition
tQVWX
33
tCLCL – 50
ns
Data setup before WR
tQVWX
433
7 tCLCL – 150
ns
Data hold after WR
tWHQX
33
tCLCL – 50
ns
Address oat after RD
tRLAZ
–0–
0
ns
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