MCP47FXBX4 datasheet(20/124 Pages) MICROCHIP

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MCP47FXBX4/8

DS20006368A-page 20

 2020 Microchip Technology Inc.

TABLE 1-4:

I2C BUS START/STOP BITS AND LAT REQUIREMENTS

I2C AC Characteristics

Standard Operating Conditions (unless otherwise specified)

Operating Temperature: -40

C  T

A  +125C (Extended)

The operating voltage range is described in DC Characteristics.

Param.

No.

Sym.

Characteristic

Min.

Max.

Units

Conditions

—FSCL

Standard mode

100

kHz

Cb = 400 pF, 1.8V - 5.5V(2)

Fast mode

400

kHz

Cb = 400 pF, 2.7V - 5.5V

High-Speed 1.7

1.7

MHz Cb = 400 pF, 4.5V - 5.5V

High-Speed 3.4

3.4

MHz Cb = 100 pF, 4.5V - 5.5V

D102

Bus Capacitive

100 kHz mode

—

400

400 kHz mode

—

400

1.7 MHz mode

—

400

3.4 MHz mode

—

100

TSU:STA Start condition

Setup time

(only relevant for

repeated Start

condition)

100 kHz mode

4700

—

Note 2

400 kHz mode

600

—

1.7 MHz mode

160

—

3.4 MHz mode

160

—

THD:STA Start condition

Hold time

(after this period, the

first clock pulse is

generated)

100 kHz mode

4000

—

Note 2

400 kHz mode

600

—

1.7 MHz mode

160

—

3.4 MHz mode

160

—

TSU:STO Stop condition

Setup time

100 kHz mode

4000

—

Note 2

400 kHz mode

600

—

1.7 MHz mode

160

—

3.4 MHz mode

160

—

THD:STO Stop condition

Hold time

100 kHz mode

4000

—

Note 2

400 kHz mode

600

—

1.7 MHz mode

160

—

3.4 MHz mode

160

—

TLATHD

SCL ↑ to LAT↑ (write data ACK bit)

Hold Time

250

—

Write data delayed(3)

TLAT

LAT High or Low time

—

Note 2

Not Tested. This parameter is ensured by characterization.

Note 3

The transition of the LAT signal between 10 ns before the rising edge (Spec 94) and 250 ns after the rising

edge (Spec 95) of the SCL signal is indeterminate whether the change in VOUT is delayed or not.

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