參數(shù)資料
型號(hào): LP87C52
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
中文描述: 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁數(shù): 18/23頁
文件大小: 319K
代理商: LP87C52
8XC52/54/58
EXTERNAL CLOCK DRIVE
Symbol
Parameter
Min
Max
Units
1/TCLCL
Oscillator Frequency
8XC5X
8XC5X-1
8XC5X-2
8XC5X-24
8XC5X-33
MHz
MHz
MHz
MHz
MHz
MHz
3.5
3.5
0.5
3.5
3.5
12
16
12
24
33
TCHCX
High Time
8XC5X-24/33
20
ns
ns
0.35 T
OSC
0.65 T
OSC
TCLCX
Low Time
8XC5X-24/33
20
ns
ns
0.35 T
OSC
0.65 T
OSC
TCLCH
Rise Time
8XC5X-24
8XC5X-33
20
10
5
ns
ns
ns
TCHCL
Fall Time
8XC5X-24
8XC5X-33
20
10
5
ns
ns
ns
EXTERNAL CLOCK DRIVE WAVEFORM
272336–16
AC TESTING INPUT, OUTPUT WAVEFORMS
272336–19
AC Inputs during testing are driven at V
CC
b
0.5V for a Logic ‘‘1’’
and 0.45V for a Logic ‘‘0’’. Timing measurements are made at V
IH
min for a Logic ‘‘1’’ and V
IL
max for a Logic ‘‘0’’.
FLOAT WAVEFORMS
272336–20
For timing purposes a port pin is no longer floating when a
100 mV change from load voltage occurs, and begins to float
when a 100 mV change from the loaded V
OH
/V
OL
level occurs.
I
OL
/I
OH
e
g
20 mA.
18
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