PD39210 datasheet(10/22 Pages) MICROCHIP

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PD39210

Designation

Type

Description

FAN_CONTROL

OUT

Logic out that may be used to control a fan driver.

(Active High)

I2C0_SDA

IN/OUT

I2C bidirectional data. 15-byte protocol messages are

transmitted on this line.

I2C0_SCL

IN/OUT

I2C clock from the host. Speed is limited to 400 KHz.

Clock stretch required. Pull up required, see AN3361

for details.

xLED_CS

OUT

Chip select signal for LED stream. (Active Low)

xI2C_MESSAGE_READY

OUT

I2C message ready for reading by the host. Controller

asserts this line low when it has an answer to the

host. Therefore, the host can poll this line and initiate

I2C read cycle only when the message is ready. After

the host reads the data from the controller, this pin is

asserted to high. (Active Low)

xINT_OUT

OUT

Interrupt output indication. This line is asserted low

when a pre-configured event is in progress. (Active

Low)

xRESET

IN/OUT

Host Reset input (Active Low). Controller can

generate self-reset. In this case, the xRESET pin is

driven low by the controller for 100 µs. See AN3361

for pin connection requirements.

xLED_LATCH

OUT

Latch signal for LED stream. (Active Low)

VSSD

GND

Ground.

VDD_CORE

Power

1.2 V core voltage connect 1 μF capacitor to VSSD.

VDD

Supply

Main 3.3 V supply.

SWD_CLK

PD69210 and PD39210 use a 1 kΩ pull-up to 3.3 V.

PD69220 leave open or use 1k pull-up.

SWD_DIO

Leave open.

ePAD

Connect to VSSA. Must have sufficient copper mass

to ensure adequate thermal performance.

PD39210

Pins

Datasheet

DS00003554C-page 10

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