MCP2155 datasheet(21/34 Pages) MICROCHIP

21 / 34 page

 2004 Microchip Technology Inc.

Preliminary

DS21894B-page 21

MCP2122

FIGURE 4-5:

RESET AND DEVICE RESET TIMER TIMING

TABLE 4-5:

RESET AND DEVICE RESET TIMER REQUIREMENTS

AC Characteristics

Standard Operating Conditions (unless otherwise specified)

Operating Temperature: –40

°C ≤ TA ≤ +125°C (Extended)

Operating Voltage VDD range is described in

Section 4.1 “DC Characteristics”.

Param.

No.

Sym

Characteristic

Min

Typ (1)

Max

Units

Conditions

TRSTL

RESET Pulse Width (low)

2000

—

VDD = 5.0 V

34A

ToD

Default output state of TXIR

pin from RESET Low

—

µs

34B

ToD

Default output state of RX

pins from RESET Low

——

µs

Note 1: Data in the Typical (“Typ”) column is at 5V, +25

°C unless otherwise stated. These parameters are for design

guidance only and are not tested.

VDD

RESET

Internal

RESET

34A

TXIR Pin

RX Pin

34B

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