MCP2140A-I/SO 查看數據表（PDF） - Microchip Technology

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MCP2140A-I/SO

IrDA® Standard Protocol Stack Controller With Fixed 9600 Baud Communication Rate

Microchip Technology 

MCP2140A

FIGURE 4-5:

UART ASYNCHRONOUS TRANSMISSION WAVEFORM

Start Bit

IR100

Data Bit

IR100

Data Bit

IR100

Data Bit

IR100

TX pin

IR103

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

IR103

TABLE 4-5: UART ASYNCHRONOUS TRANSMISSION REQUIREMENTS

AC Specifications

Electrical 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

IR100 TTXBIT Transmit Baud rate

384

IR101 ETXBIT Transmit (TX pin) Baud rate

—

Error (into MCP2140A)

IR102 ETXIRBIT Transmit (TXIR pin) Baud rate

—

Error (out of MCP2140A) (1)

—

384

TOSC

—

±2

%

—

±1

%

Note 1: This error is not additive to IR101 parameter.

DS22050A-page 36

© 2007 Microchip Technology Inc.

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