MGC3030 datasheet(36/46 Pages) MICROCHIP

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10.5

Timing Characteristics

10.5.1

Power-on and Reset Timing

Table 10-1. Power-on and Reset Parameters

Operating temperature: -40°C ≤ TA ≤ 125°C

Characteristic(1)

Parameter Symbol

Min

Typical(2)

Max

Units

Power-up period: Internal voltage

regulator enabled

TPU

—

400

600

System delay period: Time required to

reload device configuration fuses plus

clock delay before first instruction is

fetched

TSYSDLY

—

1.2

—

MCLR minimum pulse width

TMCLR

—

BOR pulse width

TBOR

—

Notes:

These parameters are characterized, but not tested in manufacture.

Data in Typical column is at 3.3V, 25°C, unless otherwise stated.

Figure 10-2. Power-on Timings

SDA/SCL

VDD

4.9 ms

TS line low for

duration of transfer

“SensorDataOutput” messages every 5 ms

1.1 ms

MGC3140 will respond to I2C messages

after the Firmware Version message has been transmitted to the host

Power on to “Firmware

Version" message

TS goes high

“Firmware Version” message

470 ms

600 ms

2 ms

Note: Indicated timings are typical values and may vary depending on installed firmware and actual configuration.

Timings after release of MCLR are similar to above.

Bootloader mode can be entered in the first 600 ms after Reset and will be aborted about 400 ms after the latest

message not recognized by bootloader itself (see the document 40001875C – "MGC3140/MGX3141 Library Interface

Guide" for a description of commands available in Bootloader mode.

MGC3140

Electrical Specifications

and its subsidiaries

Advance Information Datasheet

DS40002037C-page 36

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