CAM35C44 datasheet(10/50 Pages) SMSC

10 / 50 page

NAME

TOTAL

PINS

SYMBOL

BUFFER

TYPE

DESCRIPTION

Power Good

PWRGD

This active high input indicates

that the positive supply voltage

VCC is valid. For normal device

operation, PWRGD must be

active. When PWRGD is inactive,

all device inputs are disconnected

and placed into a low power state;

all outputs are put into a high-

impedance state. Note: The

crystal oscillator pins are

unaffected by PWRGD. The

contents of all registers are

preserved as long as VCC has a

valid value. Output driver current

drain when PWRGD is inactive

drops to ISTDBY - standby current.

The PWRGD input has an internal

#A pull-up.

No Connect

N/C

No internal connections are made

to these pins.

INFRARED INTERFACE (3)

Infrared Rx

IRRX

This is the infrared port receiver

input pin.

Infrared Tx

1,2

IRTX

O12PD

This is the infrared port transmitter

output pin.

Infrared Mode/IRRX3

IRMODE/IRRX3

O12/I

This is the infrared port secondary

receiver input channel or a

transceiver mode control pin,

depending on the state of the

transceiver module interface type

select (TABLE 27).

POWER PINS (6)

+3.3V Digital Supply

Voltage

VCC

Positive Supply Voltage

I/O Interface Supply

Voltage

VIO

Positive I/O Interface Supply

Voltage

Ground

VSS

Ground Supply

CAM35C44 Datasheet(PDF) 10 Page - SMSC Corporation

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