PIC16F87T-I/ML【PDF 13/200 页】IC MCU FLASH 4KX14 EEPROM 28QFN

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Sheet目录3882

9页 10页 11页 12页 [13页]14页 15页 16页 17页

LC88F83B0A

No.A1228-11/25

Pin Description

Pin Name

I/O

Description

VDD

+ power supply pin

VSS

- power supply pin

VLCD1 to 4

LCD bias power port (capacitor connection port)

LCDVSS0,

LCDVSS1

LCD power supply pin

CUP00, 01

Switching pin for generating LCD driving voltage

Connect capacitor between both ports.

OSC0

XT1

Oscillator circuit for system clock (low speed)

32.768kHz crystal oscillator and capacitor for oscillation connection

XT1: Resistor connection for RC oscillation (RC model)

XT2

OSC1

CF1

Oscillator circuit for system clock (high speed)

Ceramic oscillator and capacitor for oscillator connection

CF1: Resistance connection for RC oscillator (RC model)

CF2

PORT 0

P00 to P07

I/O

8-bit I/O port

I/O specifiable in 1-bit units

Shared pins

P00 to P05 : Interrupt function

P06: Timer 0 PWML output

P07: Timer 0 PWMH output

PORT 1

P10 to P17

I/O

8-bit I/O port

I/O specifiable in 1-bit units

Shared pins

P10: SIO0 data output

P11: SIO0 data input/Bus I/O

P12: SIO0 Clock I/O

P13: Timer 3 PWML output

P14: Timer 3 PWMH output

P16: UART 2 receive

P17: UART 2 send

PORT 2

P20 to P23

I/O

4-bit I/O port

I/O specifiable in 1-bit units

P20 to P23: AD converter input ports (AN0 to AN3)

Shared pins

P20: Timer 4 output

P21: Timer 5 output

COM0 to COM7

LCD common output port

COM8/SEG0 to

COM15/SEG7

LCD common output port/segment output port

common output/segment output is switched according to the register.

SEG8 to SEG55

LCD segment output port

SEG56 to SEG71

I/O

LCD segment output port

SEG71 to SEG56: General purpose Nch OD output/General purpose input

SEG71 to SEG56 can switch LCD output, a general-purpose Nch OD output, and a general-purpose input

(every 4 bits).

SEG71 to SEG64: Interrupt function (every 4 bits)

Selecting sampling frequency for chattering removal (every 4 bits)

Level/edge selection (every 4 bits)

Hi/Low level or rise/fall selection (every 1 bit)

SEG71 to SEG70: Timer 3 external input

RESB

Input terminal for system initialization

It operates reset by the “LOW” input.

with pull-up resistor

TST

I/O

TEST pin

On-chip debugger communication terminal

Used with pull-down or VSS

*Connect 100k

Ω between this pin and VSS when on-chip debugger is used.

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