MCP2120 데이터 시트보기 (PDF) - Microchip Technology

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MCP2120

Infrared Encoder/Decoder

Microchip Technology 

MCP2120

TABLE 1-2: PIN DESCRIPTION USER MODE

Pin Name

VDD

OSC1/CLKIN

OSC2

RESET

RXIR

TXIR

MODE

Pin Number

PDIP

1

2

3

4

5

6

7

SOIC

1

2

3

4

5

6

7

Pin

Type

—

I

O

I

I

O

I

BAUD2

BAUD1

BAUD0

RX

TX

EN

VSS

Legend:

8

8

I

9

9

I

10

10

I

11

11

O

12

12

I

13

13

I

14

14

—

TTL = TTL compatible input

I = Input

P = Power

Buffer

Type

Description

P Positive supply for logic and I/O pins

CMOS Oscillator crystal input/external clock source input

— Oscillator crystal Output

ST Resets the Device

ST Asynchronous receive from infrared transceiver

— Asynchronous transmit to infrared transceiver

TTL Selects the device mode (Data/Command) for Software Baud

Rate operation. For more information see Section 2.4.1.2 “Soft-

ware Selection”.

TTL BAUD2:BAUD0 specify the Baud rate of the device, or if the

TTL device operates in Software Baud Rate mode. For more informa-

TTL tion see Section 2.4.1 “Baud Rate”.

— Asynchronous transmit to controller UART

TTL Asynchronous receive from controller UART

— Device Enable.

P Ground reference for logic and I/O pins

ST = Schmitt Trigger input with CMOS levels

O = Output

CMOS = CMOS compatible input

DS21618B-page 4

© 2007 Microchip Technology Inc.

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