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TC9329AFCG 数据表(PDF) 8 Page - Toshiba Semiconductor |
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TC9329AFCG 数据表(HTML) 8 Page - Toshiba Semiconductor |
8 / 83 page TC9329AFAG/AFCG 2006-03-02 8 Pin No. Symbol Pin Name Function and Operation Remarks 35 36 IFin1/INTR1 IFin2/IN2 IF signal 1 input /External interrupt input IF signal 2 input /Input port IF signal input pin for the IF counter to count the IF signals of the FM and AM bands and to detect the automatic stop position. The input frequency is between 0.3 to 12 MHz. A built-in input amp. and C coupling allow operation at low-level input. The IF counter is a 20-bit counter with optional gate times of 1, 4, 16 and 64 ms. 20 bits of data can be readily stored in memory. In Manual mode, gate On/Off or CR oscillator clock frequency count can be performed using an instruction. The input pin can be programmed for use as an input port (IN port). In this case, the pins are CMOS input. They can count input clocks using the IF counter. IFin1 also functions as an external interrupt input pin. When interrupts are enabled and a 13.3 to 26.7- µA pulse or longer is input to IFin1, an interrupt is generated and the program jumps to address 1. Input logic or rising/falling edge can be selected for the input interrupt. The internal 8-bit timer clock input can be selected as input to the pin. When the count value reaches the specified value, an interrupt is generated (address 4). Note: When a pin is set to IF input, the input is at high impedance in PLL Off mode or if the pins are not used for input. 27, 39 VDD 37, 57 GND Power-supply pins Pins to which power is applied. Normally, VDD = 0.9~1.8 V is applied. In backup state (at execution of the CKSTP instruction), current dissipation drops (1 µA or less) and the power supply voltage can be reduced to 0.75 V. Note: To operate the power on reset, the power supply should start up in 10~100 ms. VDD RfIN2 GND VDD |
类似零件编号 - TC9329AFCG |
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类似说明 - TC9329AFCG |
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