參數(shù)資料
型號(hào): 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): 39/49頁
文件大?。?/td> 962K
代理商: SAB-C504-2RM
Semiconductor Group
39
C504
AC Characteristics for C504-L / C504-2R
V
CC
= 5 V + 10%, – 15%;
V
SS
= 0 V
T
A
= 0 to 70
°
C
T
A
= – 40 to 85
°
C
T
A
= – 40 to 110
°
C
T
A
= – 40 to 125
°
C
for the SAB-C504
for the SAF-C504
for the SAH-C504
for the SAK-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 75 ns is permissible. This limited bus contention will not
cause any damage to port 0 drivers.
Parameter
Symbol
Limit Values
Unit
12-MHz clock
Variable Clock
1/
t
CLCL
= 3.5 MHz to
12 MHz
min.
max.
min.
2
t
CLCL
– 40
t
CLCL
– 40
t
CLCL
– 23
t
CLCL
– 25
3
t
CLCL
– 35
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
127
ns
Address setup to ALE
43
ns
Address hold after ALE
30
4
t
CLCL
– 100 ns
ns
ALE low to valid instr in
233
ALE to PSEN
58
ns
PSEN pulse width
215
3
t
CLCL
– 100 ns
t
CLCL
– 20
5
t
CLCL
– 115 ns
ns
PSEN to valid instr in
150
Input instruction hold after PSEN
0
0
ns
Input instruction float after PSEN
*)
63
t
CLCL
– 8
ns
Address valid after PSEN
*)
75
ns
Address to valid instr in
302
Address float to PSEN
0
0
ns
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