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M37515M4-XXXHP Datasheet(PDF) 3 Page - Mitsubishi Electric Semiconductor

Part No. M37515M4-XXXHP
Description  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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Maker  MITSUBISHI [Mitsubishi Electric Semiconductor]
Homepage  http://www.mitsubishichips.com
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M37515M4-XXXHP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
VCC, VSS
PIN DESCRIPTION
Functions
Name
Pin
•Apply voltage of 2.7 V – 5.5 V to Vcc, and 0 V to Vss.
•This pin controls the operation mode of the chip.
•Normally connected to VSS.
•Reset input pin for active “L.”
•Input and output pins for the clock generating circuit.
•Connect a ceramic resonator or 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 the XIN pin and leave the XOUT
pin open.
•8-bit CMOS I/O port.
•I/O direction register allows each pin to be individually programmed as either input or output.
•CMOS compatible input level.
•CMOS 3-state output structure.
•P13 to P17 (5 bits) are enabled to output large current for LED drive.
•8-bit CMOS I/O port.
Power source
Table 1 Pin description
Function except a port function
• Sub-clock generating circuit I/O
pins (connect a resonator)
Clock input
Clock output
I/O port P0
I/O port P1
I/O port P2
CNVSS input
CNVSS
RESET
Reset input
XIN
XOUT
P00–P07
P10–P17
P20/XCOUT
P21/XCIN
P22/SDA1
P23/SCL1
P24/SDA2/RxD
P25/SCL2/TxD
P26/SCLK
P27/CNTR0/
SRDY
I/O port P3
I/O port P4
•I/O direction register allows each pin to be individually
programmed as either input or output.
•CMOS compatible input level.
•P22 to P25 can be switched between CMOS compat-
ible input level or SMBUS input level in the I2C-BUS
interface function.
•P20, P21, P24 to P27: CMOS3-state output structure.
•P24, P25: N-channel open-drain structure in the I2C-
BUS interface function.
•P22, P23: N-channel open-drain structure.
•8-bit CMOS I/O port with the same function as port P0.
•CMOS compatible input level.
•CMOS 3-state output structure.
•8-bit CMOS I/O port with the same function as port P0.
•CMOS compatible input level.
•CMOS 3-state output structure.
• I2C-BUS interface function pins
• I2C-BUS interface function pin/
Serial I/O function pins
• Serial I/O function pin
• Serial I/O function pin/
Timer X function pin
• A-D converter input pin
• Timer Y function pin
• Interrupt input pins
• Interrupt input pin
• PWM output pin
P30/AN0
P37/AN7
P40/CNTR1
P41/INT0
P43/INT2
P44/INT3/PWM
P45–P47




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