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參數資料
型號: Q67121C452
英文描述: IC-SM-8-BIT CPU-12MHZ
中文描述: 集成電路釤8位CPU - 12MHz的
文件頁數: 102/121頁
文件大小: 1000K
代理商: Q67121C452
Semiconductor Group
10-5
Device Specifications
C501
10.4
V
CC
= 5 V + 10 %, – 15 %;
V
SS
= 0 V
AC Characteristics for C501-L / C501-1R / C501-1E
T
A
= 0 °C to 70 °C
T
A
= – 40 °C to 85 °C for the SAF-C501
for the SAB-C501
(
C
L
for port 0, ALE and PSEN outputs = 100 pF;
C
L
for all other outputs = 80 pF)
Program Memory Characteristics
*) Interfacing the C501 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.
2
t
CLCL
– 40
t
CLCL
– 40
t
CLCL
– 53
t
CLCL
– 25
3
t
CLCL
– 35
min.
max.
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
ALE low to valid instr in
233
ns
ALE to PSEN
58
ns
PSEN pulse width
215
3
t
CLCL
– 100
t
CLCL
– 20
5
t
CLCL
– 115
ns
PSEN to valid instr in
150
ns
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
ns
Address float to PSEN
0
0
ns
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