RFPIC12C509AF datasheet(14/104 Pages) MICROCHIP

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rfPIC12C509AG/509AF

DS70031A-page 12

Preliminary

TABLE 3-1:

rfPIC12C509AG/509AF PINOUT DESCRIPTION

Name

SOIC

CERDIP

Pin #

SSOP

Pin #

I/O/P

Type

Buffer

Type

Description

GP0

I/O

TTL/ST Bi-directional I/O port/ serial programming data. Can

be software programmed for internal weak pull-up and

wake-up from SLEEP on pin change. This buffer is a

Schmitt Trigger input when used in serial programming

mode.

GP1

I/O

TTL/ST Bi-directional I/O port/ serial programming clock. Can

be software programmed for internal weak pull-up and

wake-up from SLEEP on pin change. This buffer is a

Schmitt Trigger input when used in serial programming

mode.

GP2/T0CKI

I/O

Bi-directional I/O port. Can be configured as T0CKI.

GP3/MCLR/VPP

TTL/ST Input port/master clear (Reset) input/programming

voltage input. When configured as MCLR, this pin is

an active low RESET to the device. Voltage on MCLR/

VPP must not exceed VDD during normal device opera-

tion or the device will enter programming mode. Can

be software programmed for internal weak pull-up and

wake-up from SLEEP on pin change. Weak pull-up

always on if configured as MCLR. ST when in MCLR

mode.

GP4/OSC2

I/O

TTL

Bi-directional I/O port/oscillator crystal output. Con-

nections to crystal or resonator in crystal oscillator

mode (XT and LP modes only, GPIO in other modes).

GP5/OSC1/CLKIN

I/O

TTL/ST Bi-directional IO port/oscillator crystal input/external

clock source input (GPIO in Internal RC mode only,

OSC1 in all other oscillator modes). TTL input when

GPIO, ST input in external RC oscillator mode.

VDD

—

Positive supply for logic and I/O pins

VSS

—

Ground reference for logic and I/O pins

RFENIN

TTL

Transmitter and CLKOUT enable. Internal pull-down.

CLKOUT

—

Clock output.

PS/DATAASK

—

Power select and ASK data input.

VDDRF

—

Positive supply for transmitter.

ANT2

—

Antenna connection to differential power amplifier out-

put, open collector.

ANT1

—

Antenna connection to differential power amplifier out-

put, open collector.

VSSRF

—

Ground reference for transmitter.

—

External loop filter connection. Common node of

charge pump output and VCO tuning input.

XTAL

—

Transmitter crystal connection to colpitts type crystal

oscillator.

DATAFSK

—

TTL

FSK data input.

FSKOUT

—

FSK crystal pulling output.

Legend: I = input, O = output, I/O = input/output, P = power, — = not used, TTL = TTL input, ST = Schmitt Trigger

input, AN = analog, CMOS = CMOS

RFPIC12C509AF Datasheet(PDF) 14 Page - Microchip Technology

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