MCP2140A-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP2140A-I/SO

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

Microchip Technology 

FIGURE 4-4:

VDD

RESET

Reset

Detected

PWRT

Timeout

OSC

Timeout

Internal

RESET

Output Pin

RESET AND DEVICE RESET TIMING

30

33

32

34

MCP2140A

34

TABLE 4-4: RESET AND DEVICE RESET 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(1) Max Units

Conditions

30 TRSTL RESET Pulse Width (low)

2000 —

—

ns VDD = 5.0V

32 TOST Oscillator Start-up Timer Period 1024

33 TPWRT Power up Timer Period

28 (2)

34 TIOZ Output High-impedance from

—

RESET Low or device Reset

— 1024 TOSC

72 132 (2) ms VDD = 5.0V

— 2.0 (2) µs

Note 1: Data in the Typical (“Typ”) column is at 5V, +25°C unless otherwise stated.

2: These parameters are for design guidance only and are not tested.

© 2007 Microchip Technology Inc.

DS22050A-page 35

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