參數資料
型號: SAB80C517-N
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Single-Chip Microcontroller
中文描述: 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC84
封裝: PLASTIC, LCC-84
文件頁數: 49/56頁
文件大?。?/td> 668K
代理商: SAB80C517-N
SAB 80C515/80C535
Semiconductor Group
48
AC Characteristics for SAB 80C515-20 / 80C535-20
V
CC
= 5 V
±
10 %;
V
SS
= 0 V
(
C
L
for port 0, ALE and PSEN outputs = 100 pF;
C
L
for all other outputs = 80 pF)
T
A
= 0 C to + 70 C
*
)
Interfacing the SAB 80C515 / 80C535 microcontrollers to devices with float times up to 45 ns is permissible.
This limited bus contention will not cause any damage to port 0 drivers.
Parameter
Symbol
Limit values
Unit
20 MHz
clock
Variable clock
1/
t
CLCL
= 3.5MHz to 20 MHz
min.
max.
min.
max.
Program Memory Characteristics
ALE pulse width
t
LHLL
60
2
t
CLCL
– 40
t
CLCL
– 30
t
CLCL
– 30
ns
Address setup to ALE
t
AVLL
20
ns
Address hold after ALE
t
LLAX
20
ns
ALE low to valid instr in
t
LLIV
100
4
t
CLCL
– 100
ns
ALE to PSEN
t
LLPL
25
t
CLCL
– 25
3
t
CLCL
– 35
ns
PSEN pulse width
t
PLPH
115
ns
PSEN to valid instr in
t
PLIV
75
3
t
CLCL
– 75
ns
Input instruction hold
after PSEN
t
PXIX
0
0
ns
Input instruction float
after PSEN
t
PXIZ
*
)
40
t
CLCL
– 10
ns
Address valid after PSEN
t
PXAV
*
)
47
t
CLCL
– 3
ns
Address to valid instr in
t
AVIV
190
5
t
CLCL
– 60
ns
Address float to PSEN
t
AZPL
0
0
ns
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