M38513M4 查看數據表（PDF） - MITSUBISHI ELECTRIC

零件编号

产品描述 (功能)

生产厂家

M38513M4

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

3851 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

PIN DESCRIPTION

Table 1 Pin description

Pin

VCC, VSS

CNVSS

RESET

XIN

Name

Power source

CNVSS input

Reset input

Clock input

XOUT

Clock output

P00–P07

I/O port P0

P10–P17

P20/XCOUT

P21/XCIN

P22/SDA1

P23/SCL1

P24/SDA2/RxD

P25/SCL2/TxD

P26/SCLK

P27/CNTR0/

SRDY

I/O port P1

I/O port P2

P30/AN0–

P34/AN4

P40/CNTR1

P41/INT0–

P43/INT2

P44/INT3/PWM

I/O port P3

I/O port P4

Functions

Function except a port function

•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.

•I/O direction register allows each pin to be individually

programmed as either input or output.

•CMOS compatible input level.

• Sub-clock generating circuit I/O

pins (connect a resonator)

• I2C-BUS interface function pins

•P22 to P25 can be switched between CMOS compat-

ible input level or SMBUS input level in the I2C-BUS

• I2C-BUS interface function pin/

interface function.

Serial I/O function pins

•P20, P21, P24 to P27: CMOS3-state output structure.

•P24, P25: N-channel open-drain structure in the I2C-

BUS interface function.

• Serial I/O function pin

• Serial I/O function pin/

Timer X function pin

•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.

• A-D converter input pin

•8-bit CMOS I/O port with the same function as port P0.

•CMOS compatible input level.

•CMOS 3-state output structure.

• Timer Y function pin

• Interrupt input pins

• Interrupt input pin

• PWM output pin

3

Share Link: