RFPIC12F675 Datasheet, PDF(4/136 Page) Microchip Technology – FLASH-Based Microcontroller with ASK/FSK Transmitter

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RFPIC12F675 Datasheet, PDF (4/136 Pages) Microchip Technology – FLASH-Based Microcontroller with ASK/FSK Transmitter

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rfPIC12F675

TABLE 1-1: rfPIC12F675 PINOUT

BUFFER

OUT

WEAK

PULL-UP

DESCRIPTION

1 VDD

Direct â

â Power Supply

GP5

TTL CMOS

Prog

General purpose I/O. Individually controlled interrupt-on-change.

Individually enabled pull-up.

2 T1CKI

â Timer1 clock

OSC1

Xtal

Bias XTAL connection

CLKIN

â External RC network or clock input

GP4

TTL CMOS

Prog

General purpose I/O. Individually controlled interrupt-on-change.

Individually enabled pull-up.

T1G

3 AN3

Analog â

â Timer1 gate

â A/D Channel 3 input

OSC2

Xtal

Bias XTAL connection

CLKOUT â CMOS

TOSC/4 reference clock

GP3

MCLR

TTL

General purpose input. Individually controlled interrupt-on-

change.

No Master Clear Reset

VPP

â Programming voltage

5 RFXTAL Xtal

Xtal

Bias RF Crystal

6 RFEN

TTL

â RF Enable

7 REFCLK â CMOS

Reference Clock/4 Output (on rfPIC12F675K/F)

Reference Clock/8 Output (on rfPIC12F675H)

8 PS

Analog â

Bias Power Select

9 VDDRF

Direct â

â RF Power Supply

10 VSSRF

Direct â

â RF Ground Reference

11 ANT

â RF power amp output to antenna

12 VSSRF

Direct â

â RF Ground Reference

13 LF

Analog Analog

â Loop Filter

14 DATAASK TTL

â ASK modulation data

15 DATAFSK TTL

â FSK modulation data

16 FSKOUT

â FSK output to modulate reference crystal

GP2

ST CMOS

Prog

General purpose I/O. Individually controlled interrupt-on-change.

Individually enabled pull up.

AN2

17 COUT

Analog â

â CMOS

â A/D Channel 2 input

â Comparator output

T0CKI

â External clock for Timer0

INT

â External interrupt

GP1

TTL CMOS

Prog

General purpose I/O. Individually controlled interrupt-on-change.

Individually enabled pull-up.

AN1

18 CIN-

Analog â

â A/D Channel 1 input

â Comparator input - negative

VREF

Analog â

â External voltage reference

ICSPCLK ST

â Serial programming clock

GP0

TTL CMOS

Prog

General purpose I/O. Individually controlled interrupt-on-change.

Individually enabled pull-up.

19 AN0

Analog â

â A/D Channel 0 input

CIN+

Analog â

â Comparator input - positive

ICSPDAT TTL CMOS

â Serial Programming Data I/O

20 VSS

Direct â

â Ground reference

Legend: TTL = TTL input buffer, ST = Schmitt Trigger input buffer, OD = Open Drain output

DS70091B-page 4

Preliminary

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