PIC14000T-04I/JW 데이터 시트보기 (PDF) - Microchip Technology

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PIC14000T-04I/JW

28-Pin Programmable Mixed Signal Controller

Microchip Technology 

PIC14000

FIGURE 3-1: PIC14000 BLOCK DIAGRAM

EPROM

Program

Memory

4K x 14

Program

Bus

14

Instruction reg

13

Program Counter

Data Bus

8

8 Level Stack

(13-bit)

RAM

File

Registers

192 x 8

RAM Addr (1)

9

Addr MUX

Direct Addr 7

Indirect

8 Addr

FSR reg

STATUS reg

8

Instruction

Decode &

Control

OSC1/PBTN

OSC2/CLKOUT

Timing

Generation

Internal

Oscillator

Power-up

Timer

Oscillator

Start-up Timer

Power-on

Reset

Watchdog

Timer

Low Voltage

Detector

3

MUX

ALU

8

W reg

MCLR/VPP VDD, VSS

Programmable

Reference A & B

with Comparators

Timer0

PORTA

RA0/AN0

RA1/AN1

RA2/AN2

RA3/AN3

PORTC

RC0/REFA

RC1/CMPA

RC2

RC3/T0CKI

RC4

RC5

RC6/SCLA

RC7/SDAA

PORTD

RD0/SCLB

RD1/SDAB

RD2/CMPB

RD3/REFB

RD4/AN4

RD5/AN5

RD6/AN6

RD7/AN7

Voltage

Regulator

Support

Temp

Sensor

Bandgap

Reference

Slope A/D

I2C

Serial Port

VREG

SUM CDAC

Note 1: Higher order bits are from the STATUS register.

DS40122B-page 8

Preliminary

© 1996 Microchip Technology Inc.

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