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LC72322R Datasheet(PDF) 8 Page - Sanyo Semicon Device |
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LC72322R Datasheet(HTML) 8 Page - Sanyo Semicon Device |
8 / 13 page Continued from preceding page. No. 5378-8/13 LC72322R, 72323R Continued on next page. Pin Pin No. Functions I/O I/O circuit type PH0 PH1 PH2/DAC*1 PH3/DAC*2 PI0/S25 PI1/S26 PI2/S27 PI3/S28 S1 to S24 COM1 COM2 FMIN AMIN 55 56 57 58 26 27 28 29 2 to 25 80 1 71 70 Dedicated output ports Since these pins are high-breakdown voltage n-channel transistor open-drain outputs, they can be effectively used for functions such as band power supply switching. And, PH2 and PH3 can also be used for DAC1 and DAC2 output ports respectively. (*: DAC is contained in LC72322R only.) These ports go to the high impedance state during a reset, i.e., when the RES pin is low, and in BACKUP mode. Dedicated output ports While these pins have a CMOS output circuit structure, they can be switched to function as LCD drivers. Their function is switched by the SS and RS instructions. These pins cannot be switched individually. The LCD driver function is selected and a segment-off signal is output when power is first applied or when RES is low. These pins are held at the low level in BACKUP mode. Note that when the general-purpose port use option is specified, these pins output the contents of IPORT when LPC is 1, and the contents of the general-purpose output port LATCH when LPC is 0. LCD driver segment outputs A frame frequency of 100 Hz and a 1/2 duty, 1/2 bias drive type are used. A segment-off signal is output when power is first applied or when RES is low. These pins are held at the low level in BACKUP mode. The use of these pins as general-purpose output ports can be specified as an option. LCD driver common outputs A 1/2 duty, 1/2 bias drive type is used. The output when power is first applied or when RES is low is identical to the normal operating mode output. These pins are held at the low level in BACKUP mode. FM VCO (local oscillator) input The input must be capacitor coupled. The input frequency range is from 10 to 130 MHz. (Max. 150 MHz) AM VCO (local oscillator) input The input must be capacitor coupled The band supported by this pin can be selected using the PLL instruction. High (2 to 40 MHz) → SW Low (0.5 to 10 MHz) → LW and MW Output Output Output Output Input |
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