參數(shù)資料
型號(hào)： MSM80C51F-XXXRS
廠商： OKI ELECTRIC INDUSTRY CO LTD
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP40
封裝： 0.600 INCH, PLASTIC, DIP-40
文件頁數(shù)： 29/39頁
文件大?。?/td> 355K
代理商： MSM80C51F-XXXRS
35/38
Semiconductor
MSM80C31F/80C51F
AC Characteristics Measuring Conditions
Input/output signal
VOH
VOL
VIH
VIL
VIH
VIL
TEST POINT
VOH
VOL
*
The input signals in AC test mode are either VOH (logic "1") or VOL (logic "0") input signals
where logic "1" corresponds to a CPU output signal waveform measuring point in excess of
VIH, and logic "0" to a point below VIL.
Floating
*
The port 0 floating interval is measured from the time the port 0 pin voltage drops below VIH
after sinking to GND at 2.4 mA when switching to floating status from a "1" output, and from
the time the port 0 pin voltage exceeds VIL after connecting to a 400 mA source when
switching to floating status from a "0" output.
VOH
VOL
VIH
VIL
VIH
VIL
Floating
VOH
VOL
XTAL1 External Clock Input Waveform Conditions
Parameter
Min.
Max.
Unit
Symbol
Variable Clock
See Guaranteed Operating Range
External Clock Frequency
1/tCLCL
DC
16
MHz
High Time
tCHCX
20
—
ns
Low Time
tCLCX
20
—
ns
Rise Time
tCLCH
—20
ns
Fall Time
tCHCL
—20
ns
External clock waveform
0.7VCC
0.2VCC – 0.1
0.45 V
VCC – 0.5
tCHCL
tCLCH
tCLCX
tCLCL
tCHCX
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