MCP2120T-I View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP2120T-I

Infrared Encoder/Decoder

Microchip Technology 

MCP2120

FIGURE 4-7:

USART ASynchronous Receive Timing

Start Bit

IR110

Data Bit

IR110

Data Bit

IR110

Data Bit

IR110

RX pin

IR112

Note: Refer to Figure 4-2 for load conditions.

IR112

TABLE 4-7: USART ASYNCHRONOUS RECEIVE REQUIREMENTS

AC Characteristics

Standard Operating Conditions (unless otherwise specified)

Operating Temperature

–40°C ≤ TA ≤ +85°C (industrial)

Operating Voltage VDD range is described in Section 4.1 “DC

Characteristics”

Param.

No.

Sym

Characteristic

Min

Typ Max Units

Conditions

IR110 TRXBIT Receive Baud Rate

768

384

192

128

64

768

384

192

128

64

IR111 ERXBIT Receive (RXIR pin) Baud rate

—

Error (into MCP2120)

IR112 ERXBIT Receive (RX pin) Baud rate

—

Error (out of MCP2120)(1)

IR113 TTXRF RX pin rise time and fall time

—

Note 1: This error is not additive to IR111 parameter.

Hardware Selection

—

768 TOSC BAUD2:BAUD0 = 000

—

384 TOSC BAUD2:BAUD0 = 001

—

192 TOSC BAUD2:BAUD0 = 010

—

128 TOSC BAUD2:BAUD0 = 011

—

64

TOSC BAUD2:BAUD0 = 100

Software Selection

BAUD2:BAUD0 = 111

—

768 TOSC Hex Command = 0x87

—

384 TOSC Hex Command = 0x8B

—

192 TOSC Hex Command = 0x85

—

128 TOSC Hex Command = 0x83

—

64

TOSC Hex Command = 0x81

—

1

%

—

1

%

—

25

ns

© 2007 Microchip Technology Inc.

DS21618B-page 21

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