전자부품 데이터시트 검색엔진 |
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LC72338 데이터시트(PDF) 7 Page - Sanyo Semicon Device |
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LC72338 데이터시트(HTML) 7 Page - Sanyo Semicon Device |
7 / 16 page Continued from preceding page. No. 5157-7/16 LC72336, 72338 Pin No. Symbol I/O I/O type Function 6 5 4 3 1 80 77 78 76 31, 73 75 74 PG0 PG1/SCK0 PG2/SO0 PG3/SI0 XIN XOUT EO1 EO2 VSS VDD AMIN FMIN I/O I O O — I I CMOS push-pull — CMOS tristate — CMOS amplifier input CMOS amplifier input Shared-function general-purpose output and serial I/O port Inputs are a Schmitt input. The IOS instruction is used to switch between the general-purpose I/O port function and the serial I/O function, as well as between input and output for the general-purpose I/O port function. • When used as a general-purpose I/O port: Input or output can be specified in bit units (bit I/O). These ports are set up to be general-purpose I/O ports with the IOS instruction with Pn = 0. b0 = SI/O0 0 ... General-purpose ports 1 ... SI/O ports The IOS instruction is used to specify input or output in bit units. PG ... Pn = 6 0 ... Input 1 ... Output • When used as a serial I/O port: These ports are set up to be serial I/O ports with the IOS instruction with Pn = 0. The contents of the serial I/O data buffers can be saved and loaded with the INR and OUTR instructions. Note: Pin setup states when used as serial I/O ports: PG0 ... General-purpose I/O PG1 ... SCK0 output in internal clock mode SCK0 input in external clock mode PG2 ... SO0 output PG3 ... SI0 input These ports go to the input disabled high-impedance state in clock stop mode. These ports function as general-purpose input ports after a power-on reset. 4.5 MHz crystal oscillator connections Charge pump outputs These pins go to the high-impedance state when the HOLD pin is set low in the hold enable state. These pins go to the high-impedance state in clock stop mode, after a power-on reset, and in the PLL stopped state. Power supply connections AM VCO (local oscillator) input This pin is selected and the band set using the PLL instruction CW1 (b1 and b0) field. The input signal must be capacitor coupled. Input is disabled if the HOLD pin is set low in the HOLD enabled state. Input is disabled in clock stop mode, after a power-on reset, and in the PLL stopped state. FM VCO (local oscillator) input This pin is selected using the PLL instruction CW1 field (b1 = 0, b0 = don’t care). The input signal must be capacitor coupled. Input is disabled if the HOLD pin is set low in the HOLD enabled state. Input is disabled in clock stop mode, after a power-on reset, and in the PLL stopped state. Continued on next page. b1 b0 Band 1 0 2 to 40 MHz (SW) 1 1 0.5 to 10 MHz (MW, LW) |
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