MRF89XA datasheet(13/140 Pages) MICROCHIP

13 / 140 page

 2010-2017 Microchip Technology Inc.

Preliminary

DS70000622D-page 13

MRF89XA

TABLE 2-1:

PIN DESCRIPTIONS

Number

Pin Name

Pin Type

Description

TEST5

Digital I/O

Test Pin. Connected to Ground during normal operation.

TEST1

Digital I/O

Test Pin. Connected to Ground during normal operation.

VCORS

Analog Output Regulated voltage supply of the VCO (0.85V).

VCOTN

Analog I/O

VCO tank.

VCOTP

Analog I/O

VCO tank.

PLLN

Analog I/O

PLL loop filter.

PLLP

Analog I/O

PLL loop filter.

TEST6

Digital I/O

Test Pin. Connected to Ground during normal operation.

TEST7

Digital I/O

Test Pin. Connected to Ground during normal operation.

OSC1

Analog Input Crystal connection.

OSC2

Analog Input Crystal connection.

TEST0

Digital Input

Test Pin. Connected to Ground during normal operation.

TEST8

Digital I/O

Test Pin. Allow pin to float; do not connect signal during normal

operation.

CSCON

Digital Input

SPI Configure Chip Select.

CSDAT

Digital Input

SPI Data Chip Select.

SDO

Digital Output Serial data output interface from MRF89XA.

SDI

Digital Input

Serial data input interface to MRF89XA.

SCK

Digital Input

Serial clock interface.

CLKOUT

Digital Output Clock output. Output clock at reference frequency divided by a pro-

grammable factor. Refer to the Clock Output Control Register

(Register 2-28) for more information.

DATA

Digital I/O

NRZ data input and output (Continuous mode).

IRQ0

Digital Output Interrupt request output.

IRQ1

Digital Output Interrupt request output.

PLOCK

Digital Output PLL lock detection output. Refer to the FIFO Transmit PLL and RSSI

Interrupt Request Configuration Register (Register 2-15) for more

information.

TEST2

Digital I/O

Test Pin. Connected to Ground during normal operation.

TEST3

Digital I/O

Test Pin. Connected to Ground during normal operation.

VDD

Power

Supply voltage.

AVRS

Analog Output Regulated supply of the analog circuitry (1.0V).

DVRS

Analog Output Regulated supply of the digital circuitry (1.0V).

PARS

Analog Output Regulated supply of the PA (1.8V).

TEST4

Digital I/O

Test Pin. Connected to Ground during normal operation.

RFIO

Analog I/O

RF input/output (for more information, see Section 2.3, RFIO Pin).

—

No Connection. Connected to Ground during normal operation.

Vss

Ground

Exposed Pad. Connected to Ground during normal operation.

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