參數(shù)資料
型號: SAB-C504-2RM
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, 12 MHz, MICROCONTROLLER, PQFP44
文件頁數(shù): 41/49頁
文件大?。?/td> 962K
代理商: SAB-C504-2RM
Semiconductor Group
41
C504
AC Characteristics for C504-L24 / C504-2R24
V
CC
= 5 V + 10 %, – 15 %;
V
SS
= 0 V
T
A
= 0 to 70
°
C
T
A
= – 40 to 85
°
C
for the SAB-C504
for the SAF-C504
(
C
L
for port 0, ALE and PSEN outputs = 100 pF;
C
L
for all other outputs = 80 pF)
Program Memory Characteristics
*)
Interfacing the C504 to devices with float times up to 37 ns is permissible. This limited bus contention will not
cause any damage to port 0 drivers.
Parameter
Symbol
Limit Values
Unit
24-MHz clock
Variable Clock
1/
t
CLCL
= 3.5 MHz to
24 MHz
min.
max.
min.
2
t
CLCL
– 40
t
CLCL
– 25
t
CLCL
– 25
t
CLCL
– 20
3
t
CLCL
– 30
max.
ALE pulse width
t
LHLL
t
AVLL
t
LLAX
t
LLIV
t
LLPL
t
PLPH
t
PLIV
t
PXIX
t
PXIZ
t
PXAV
t
AVIV
t
AZPL
43
ns
Address setup to ALE
17
ns
Address hold after ALE
17
4
t
CLCL
– 87
ns
ALE low to valid instr in
80
ns
ALE to PSEN
22
ns
PSEN pulse width
95
3
t
CLCL
– 65
t
CLCL
– 10
5
t
CLCL
– 60
ns
PSEN to valid instr in
60
ns
Input instruction hold after PSEN
0
0
ns
Input instruction float after PSEN
*)
32
t
CLCL
– 5
ns
Address valid after PSEN
*)
37
ns
Address to valid instr in
148
ns
Address float to PSEN
0
0
ns
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