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參數(shù)資料
| 型號： | D87C51FB |
| 英文描述： | IC-8-BIT CMOS CPU |
| 中文描述： | 集成電路8位CMOS處理器 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 259K |
| 代理商： | D87C51FB |
8XC51FX
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, 8XC51FX refers to
8XC51FX, 8XC51FX-1 and 8XC51FX-2.
Symbol
Parameter
Oscillator
Units
12 MHz
24 MHz
33 MHz
Variable
Min Max Min Max Min Max
Min
Max
1/TCLCL Oscillator Frequency
8XC51FX
8XC51FX-1
8XC51FX-2
8XC51FX-24
8XC51FX-33
MHz
3.5
3.5
0.5
3.5
3.5
12
16
12
24
33
TLHLL
ALE Pulse Width
127
43
21
2TCLCL
b
40
ns
TAVLL
Address Valid to ALE Low
8XC51FX
8XC51FX-24
8XC51FX-33
43
TCLCL
b
40
TCLCL
b
30
TCLCL
b
25
ns
ns
ns
12
5
TLLAX
Address Hold After ALE Low
8XC51FX/-24
8XC51FX-33
53
12
TCLCL
b
30
TCLCL
b
25
ns
ns
5
TLLIV
ALE Low to Valid Instr In
8XC51FX
8XC51FX-24
8XC51FX-33
234
4TCLCL
b
100
4TCLCL
b
75
4TCLCL
b
65
ns
ns
ns
91
56
TLLPL
ALE Low to PSEN Low
8XC51FX/-24
8XC51FX-33
53
12
TCLCL
b
30
TCLCL
b
25
3TCLCL
b
45
ns
ns
5
TPLPH
PSEN Pulse Width
205
80
46
TPLIV
PSEN Low to Valid Instr In
8XC51FX
8XC51FX-24
8XC51FX-33
145
3TCLCL
b
105
3TCLCL
b
90
3TCLCL
b
55
ns
ns
ns
35
35
TPXIX
Input Instr Hold after PSEN
0
0
0
0
ns
11
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| D87C51 | CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| D80C51 | CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER |
| D882SS | NPN EPITAXIAL SILICON TRANSISTOR |
| D882 | TO-126 Plastic-Encapsulate Transistors |
| D8LC40 | Super Fast Recovery Rectifiers (400V 8A) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| D87C51FB-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| D87C51FB-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| D87C51FB-24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| D87C51FB-3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| D87C51FB-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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