參數(shù)資料
型號: GMS90L56
英文描述: 8-Bit CMOS Microcontroller(8位CMOS 微控制器)
中文描述: 8位CMOS微控制器(8位的CMOS微控制器)
文件頁數(shù): 36/59頁
文件大小: 812K
代理商: GMS90L56
AC Characteristics for GMS90 series (24MHz version)
V
CC
= 5 V + 10%, - 15%;
V
SS
= 0 V;
T
A
= 0
°
C to 70
°
C
(
C
L
for port 0, ALE and PSEN outputs = 100 pF;
C
L
for all other outputs = 80 pF)
Program Memory characteristics
Parameter
Symbol
Limit Values
Unit
24 MHz
Clock
Variable Clock
1/
t
CLCL
= 3.5 MHz to 24 MHz
min.
max.
min.
max.
ALE pulse width
t
LHLL
43
-
2
t
CLCL
- 40
-
ns
Address setup to ALE
t
AVLL
17
-
t
CLCL
- 25
-
ns
Address hold after ALE
t
LLAX
17
-
t
CLCL
- 25
-
ns
ALE low to valid instr in
t
LLIV
-
80
-
4
t
CLCL
- 87
ns
ALE to PSEN
t
LLPL
22
-
t
CLCL
- 20
-
ns
PSEN pulse width
t
PLPH
95
-
3
t
CLCL
- 30
-
ns
PSEN to valid instr in
t
PLIV
-
60
-
3
t
CLCL
- 65
ns
Input instruction hold after PSEN
t
PXIX
0
-
0
-
ns
Input instruction float after PSEN
t
PXIZ*)
-
32
-
t
CLCL
- 10
ns
Address valid after PSEN
t
PXAV*)
37
-
t
CLCL
- 5
-
ns
Address to valid instruction in
t
AVIV
-
148
-
5
t
CLCL
- 60
ns
Address float to PSEN
t
AZPL
0
-
0
-
ns
*) Interfacing the GMS90 series to devices with float times up to 35 ns is permissible. This limited bus
contention will not cause any damage to port 0 Drivers.
GMS90 Series
8-Bit CMOS Microcontroller
LG Semicon MCU
36
MAY. 1998
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