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參數(shù)資料
| 型號： | 8XC58 |
| 廠商： | Intel Corp. |
| 英文描述： | CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| 中文描述： | CHMOS單片8位微控制器 |
| 文件頁數(shù)： | 12/23頁 |
| 文件大小： | 317K |
| 代理商： | 8XC58 |
8XC52/54/58
EXPLANATION OF THE AC SYMBOLS
Each timing symbol has 5 characters. The first char-
acter is always a ‘T’ (stands for time). The other
characters, depending on their positions, stand for
the name of a signal or the logical status of that
signal. The following is a list of all the characters and
what they stand for.
A: Address
C: Clock
D: Input Data
H: Logic level HIGH
I: Instruction (program memory contents)
L: Logic level LOW, or ALE
P: PSEN
Q: Output Data
R: RD signal
T: Time
V: Valid
W: WR signal
X: No longer a valid logic level
Z: Float
For example,
TAVLL
e
Time from Address Valid to ALE Low
TLLPL
e
Time from ALE Low to PSEN Low
AC CHARACTERISTICS
(Over Operating Conditions, Load Capacitance for Port 0, ALE/PROG and
PSEN
e
100 pF, Load Capacitance for All Other Outputs
e
80 pF)
EXTERNAL MEMORY CHARACTERISTICS
All parameter values apply to all devices unless otherwise indicated. In this table, 8XC5X refers to 8XC5X,
8XC5X-1, and 8XC5X-2.
Symbol
Parameter
Oscillator
Units
12 MHz
24 MHz
33 MHz
Variable
Min Max Min Max Min Max
Min
Max
1/TCLCL Oscillator Frequency
8XC5X
8XC5X-1
8XC5X-2
8XC5X-24
8XC5X-33
3.5
3.5
0.5
3.5
3.5
12
16
12
24
33
MHz
MHz
MHz
MHz
MHz
TLHLL
ALE Pulse Width
127
43
21
2 TCLCL
b
40
ns
TAVLL
Address Valid to
ALE Low
8XC5X
8XC5X-24
8XC5X-33
43
TCLCL
b
40
TCLCL
b
30
TCLCL
b
25
ns
ns
ns
12
5
TLLAX
Address Hold After
ALE Low
8XC5X/-24
8XC5X-33
53
12
TCLCL
b
30
TCLCL
b
25
ns
ns
5
TLLIV
ALE Low to Valid
Instruction In
8XC5X
8XC5X-24
8XC5X-33
234
4 TCLCL
b
100
4 TCLCL
b
75
4 TCLCL
b
65
ns
ns
ns
91
56
12
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