CAM35C44 Ver la hoja de datos (PDF) - SMSC -> Microchip

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CAM35C44

Infrared Communications Controller Chip CameraFR

SMSC -> Microchip 

NAME

Power Good

No Connect

Infrared Rx3

Infrared Tx1,2

Infrared Mode/IRRX31

+3.3V Digital Supply

Voltage

I/O Interface Supply

Voltage1

Ground

TOTAL

PINS

SYMBOL

1 PWRGD

BUFFER

TYPE

IP

4 N/C

-

INFRARED INTERFACE (3)

1 IRRX

I

1 IRTX

O12PD

1 IRMODE/IRRX3

O12/I

POWER PINS (6)

2 VCC

DESCRIPTION

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

30#A pull-up.

No internal connections are made

to these pins.

This is the infrared port receiver

input pin.

This is the infrared port transmitter

output pin.

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).

Positive Supply Voltage

1 VIO

3 VSS

Positive I/O Interface Supply

Voltage

Ground Supply

10

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