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M38D20G8XXXFP Datasheet(PDF) 5 Page - Renesas Technology Corp |
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M38D20G8XXXFP Datasheet(HTML) 5 Page - Renesas Technology Corp |
5 / 136 page Rev.3.02 Apr 10, 2008 Page 5 of 131 REJ03B0177-0302 38D2 Group PIN DESCRIPTION Table 2 Pin description (1) Pin Name Function Function except a port function VCC, VSS Power source • Apply 1.8 to 5.5 V to VCC, and 0 V to VSS. RESET Reset input • Reset input pin for active “L”. XIN Clock input • Input and output pins for the main clock generating circuit. • Connect a ceramic resonator or a quartz-crystal oscillator between the XIN and XOUT pins to set the oscillation frequency. When an external clock is used, connect the clock source to XIN, and leave XOUT pin open. • Feedback resistor is built in between XIN pin and XOUT pin. XOUT Clock output VL3 LCD power source • Input 0 ≤ VL1 ≤ VL2 ≤ VL3 voltage. • Input 0 − VL3 voltage to LCD. COM0 − COM3 Common output • LCD common output pins. •COM2 and COM3 are not used at 1/2 duty ratio. •COM3 is not used at 1/3 duty ratio. P00/SEG0/(KW4) − P03/SEG3/(KW7) I/O port P0 • 8-bit I/O port. • CMOS compatible input level. • CMOS 3-state output structure. • I/O direction register allows each pin to be individually programmed as either input or output. • Pull-up control is enabled in a bit unit. • LCD segment output pins • Key input interrupt input pins P04/SEG4 − P07/SEG7 P10/SEG8 − P17/SEG15 I/O port P1 • 8-bit I/O port. • CMOS compatible input level. • CMOS 3-state output structure. • I/O direction register allows each pin to be individually programmed as either input or output. • Pull-up control is enabled in a bit unit. P20/SEG16 − P25/SEG21 I/O port P2 • 8-bit I/O port. • CMOS compatible input level. • CMOS 3-state output structure. • I/O direction register allows each pin to be individually programmed as either input or output. • Pull-up control is enabled in a bit unit. P26/SEG22/VL1 P27/SEG23/VL2 • LCD power source pins P30/SRDY2/(LED0) P31/SCLK2/(LED1) P32/TxD2/(LED2) P33/RxD2/(LED3) I/O port P3 • 8-bit I/O port. • CMOS compatible input level. • CMOS 3-state output structure. • I/O direction register allows each pin to be individually programmed as either input or output. • Pull-up control is enabled in 4-bit unit. • Serial I/O2 function pins P34/INT2/(LED4) • External interrupt pin P35/TXOUT1/(LED5) P36/T2OUT/CKOUT/ (LED6) • Timer X, Timer 2 output pins P37/CNTR0/TXOUT2/ (LED7) • Timer X function pin P40/OOUT0/AN0 P41/OOUT1/AN1 I/O port P4 • 8-bit I/O port. • CMOS compatible input level. • CMOS 3-state output structure. • I/O direction register allows each pin to be individually programmed as either input or output. • Pull-up control is enabled in 4-bit unit. • A/D convertor input pins • Oscillation external output pins P42/AN2/ADKEY •ADKEY P43/AN3 −P45/AN5 P46/RTP0/AN6 P47/RTP1/AN7 • Real time port function pins P50/INT0 P51/INT1 I/O port P5 • 8-bit I/O port. • CMOS compatible input level. • CMOS 3-state output structure. • I/O direction register allows each pin to be individually programmed as either input or output. • Pull-up control is enabled in 4-bit unit • External input pins P52/T3OUT/PWM0 P53/T4OUT/PWM1 • Timer 3, Timer 4 output pins • PWM output pins P54/RxD1/(KW0) P55/TxD1/(KW1) P56/SCLK1/(KW2) P57/SRDY1/(KW3) • Serial I/O1 function pins • Key input interrupt input pins |
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