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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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3825 bảng dữ liệu(PDF) 21 Page - Renesas Technology Corp |
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3825 bảng dữ liệu(HTML) 21 Page - Renesas Technology Corp |
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21 / 339 page  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS 3825 Group 1-5 PIN DESCRIPTION Table 1. Pin description (1) Function • Apply voltage of 2.5 V to 5.5 V to VCC, and 0 V to VSS. (Extended operating temperature version : 3.0 V to 5.5 V) • Reference voltage input pin for A-D converter. • GND input pin for A-D converter. • Connect to VSS. • Reset input pin for active “L” • Input and output pins for the main clock generating circuit. • Feedback resistor is built in between XIN pin and XOUT pin. • Connect a ceramic resonator or a quartz-crystal oscillator between the XIN and XOUT pins to set the oscillation frequency. • If an external clock is used, connect the clock source to the XIN pin and leave the XOUT pin open. • This clock is used as the oscillating source of system clock. • Input 0 ≤ VL1 ≤ VL2 ≤ VL3 ≤ VCC voltage • Input 0 – VL3 voltage to LCD • External capacitor pins for a voltage multiplier (3 times) of LCD contorl. • LCD common output pins • COM2 and COM3 are not used at 1/2 duty ratio. • COM3 is not used at 1/3 duty ratio. • LCD segment output pins • 8-bit output port • CMOS 3-state output structure • Pull-down control is enabled. • Port output control is enabled. • 6-bit output port • CMOS 3-state output structure • Pull-down control is enabled. • Port output control is enabled. • 2-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. • 8-bit Input 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. • 8-bit output port • 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. • LCD segment pins • Key input (key-on wake up) interrupt input pins • LCD segment pins Pin VCC, VSS VREF AVSS RESET XIN XOUT VL1 – VL3 C1, C2 COM0 – COM3 SEG0 – SEG17 P00/SEG26 – P07/SEG33 P10/SEG34 – P15/SEG39 P16, P17 P20 – P27 P30/SEG15 – P37/SEG25 Name Power source Analog reference voltage Analog power source Reset input Clock input Clock output LCD power source Charge-pump capacitor pin Common output Segment output Output port P0 Output port P1 I/O port P1 I/O port P2 Output port P3 Function except a port function |
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