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M38068M3-FP Datasheet(PDF) 5 Page - Renesas Technology Corp

Part # M38068M3-FP
Description  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M38068M3-FP Datasheet(HTML) 5 Page - Renesas Technology Corp

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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3825 Group
4
PIN DESCRIPTION
Table 1. Pin description (1)
Function
•Apply voltage of power source to VCC, and 0 V to VSS. (For the limits of VCC, refer to “Recom-
mended operating conditions”.)
• 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
• Pull-down control is enabled.
• Port output 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/SEG18
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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