PIC16F87T/ML View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F87T/ML

18/20/28-Pin Enhanced Flash MCUs with nanoWatt Technology

Microchip Technology 

PIC16F87/88

FIGURE 5-12:

BLOCK DIAGRAM OF RB4/SCK/SCL PIN

Port/SSPEN

SCK/SCL

1

0

RBPU(2)

Data Bus

WR

PORTB

WR

TRISB

Data Latch

DQ

CK

TRIS Latch

DQ

CK

RD TRISB

SCL Drive

Set RBIF

RD PORTB

From other

RB7:RB4 pins

SCK

SCL(3)

VDD

P

Weak

Pull-up

VDD

P

N

I/O pin(1)

VSS

TTL

Input

Buffer

Latch

QD

EN

Q1

QD

RD PORTB

EN

Q3

Note 1: I/O pins have diode protection to VDD and VSS.

2: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit.

3: The SCL Schmitt conforms to the I2C™ specification.

 2002-2013 Microchip Technology Inc.

DS30487D-page 63

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