参数资料
型号: SAF-C505C-L20M
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44
封装: PLASTIC, MQFP-44
文件页数: 70/88页
文件大小: 1013K
代理商: SAF-C505C-L20M
C505/C505C/C505A/C505CA
Data Sheet
68
12.00
AC Characteristics (16 MHz, 0.4 to 0.6 Duty Cycle)
(Operating Conditions apply)
(
C
L for port 0, ALE and PSEN outputs = 100 pF; CL for all other outputs = 80 pF)
Program Memory Characteristics
*)
Interfacing the C505 to devices with float times up to 20 ns is permissible. This limited bus contention will not
cause any damage to port 0 drivers.
Parameter
Symbol
Limit Values
Unit
16-MHz clock
Duty Cycle
0.4 to 0.6
Variable Clock
1/CLP= 2 MHz to 16 MHz
min.
max.
min.
max.
ALE pulse width
t
LHLL
48
CLP - 15
ns
Address setup to ALE
t
AVLL
10
TCLHmin -15 –
ns
Address hold after ALE
t
LLAX
10
TCLHmin -15 –
ns
ALE to valid instruction in
t
LLIV
75
2 CLP - 50
ns
ALE to PSEN
t
LLPL
10
TCLLmin -15
ns
PSEN pulse width
t
PLPH
73
CLP+
TCLHmin -15
ns
PSEN to valid instruction in
t
PLIV
38
CLP+
TCLHmin- 50
ns
Input instruction hold after PSEN
t
PXIX
0
0
ns
Input instruction float after PSEN
t
PXIZ
*)
15
TCLLmin -10
ns
Address valid after PSEN
t
PXAV
*)
20
TCLLmin - 5
ns
Address to valid instruction in
t
AVIV
95
2 CLP +
TCLHmin -55
ns
Address float to PSEN
t
AZPL
-5
-5
ns
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