參數(shù)資料
型號(hào): HT95CXXX
廠商: Holtek Semiconductor Inc.
英文描述: CID Type Phone 8-Bit MCU
中文描述: 刑事偵緝式電話8位微控制器
文件頁數(shù): 5/51頁
文件大?。?/td> 384K
代理商: HT95CXXX
HT95C200/20P
Pin Description
Pin Name
I/O
Description
CPU
VDD
Positive power supply
VDD2
Positive power supply for FSK decoder
VSS
Negative power supply, ground
VSS2
Negative power supply for FSK decoder, ground
X1
I
A 32768Hz crystal (or resonator) should be connected to this pin and X2.
X2
O
A 32768Hz crystal (or resonator) should be connected to this pin and X1.
XC
I
External low pass filter used for frequency up conversion circuit.
RES
I
Schmitt trigger reset input, active low.
INT/TMR1
I
Schmitt trigger input for external interrupt or Timer/Event Counter 1.
No internal pull-high resistor.
For INT: Edge trigger activated on a falling edge.
For TMR1: Activated on falling or rising transition edge, selected by software.
TMR0
I
Schmitt trigger input for Timer/Event Counter 0.
No internal pull-high resistor.
Activated on falling or rising transition edge, selected by software.
HT95CXXX
Rev. 1.50
5
May 26, 2005
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