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: 48/61页
文件大小: 1054K
代理商: SAB80C537-M-T85
SAB 80C517/80C537
Semiconductor Group
51
AC Characteristics
V CC = 5 V ± 10 %; V SS = 0 V
T A =
0 to 70 oC for the SAB 80C517-16/83C537-16
T A = 40 to 85
oC for the SAB 80C517-16/83C537-16-T40/85
(CL for port 0, ALE and PSEN outputs = 100pF; CL for all outputs = 80 pF)
Parameter
Symbol
Limit Values
Unit
16 MHz Clock
Variable Clock
1/t CLCL = 3.5 MHz to 16 MHz
min
max.
min.
max.
Program Memory Characteristics
ALE pulse width
tLHLL
85
2 tCLCL – 40
ns
Address setup to ALE
tAVLL
33
tCLCL – 30
ns
Address hold after ALE
tLLAX
28
tCLCL – 35
ns
ALE to valid instr. in
tLLIV
150
4tCLCL– 100
ns
ALE to PSEN
tLLPL
38
tCLCL – 25
ns
PSEN pulse width
tPLPH
153
3 tCLCL – 35
ns
PSEN to valid instr. in
tPLIV
–88
3tCLCL – 100
ns
Input instruction hold
after PSEN
tPXIX
0
0–ns
Input instruction oat *)
after PSEN
tPXIZ
–43
tCLCL – 20
ns
Address valid after
PSEN *)
tPXAV
55
tCLCL – 8
ns
Address to valid instr. in
tAVIV
198
0–
5tCLCL – 115
ns
Address oat to PSEN
tAZPL
0
0–ns
*)
Interfacing the SAB 80C517 to devices with float times up to 55 ns is permissible.
This limited bus contention will not cause any damage to port 0 drivers.
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