MCP4432 datasheet(13/100 Pages) MICROCHIP

13 / 100 page

DS22265A-page 13

MCP444X/446X

FIGURE 1-2:

I2C Bus Start/Stop Bits Timing Waveforms.

TABLE 1-2:

I2C BUS START/STOP BITS REQUIREMENTS

I2C AC Characteristics

Standard Operating Conditions (unless otherwise specified)

Operating Temperature

–40

°C ≤ TA ≤ +125°C (Extended)

Operating Voltage VDD range is described in AC/DC characteristics

Param.

No.

Symbol

Characteristic

Min

Max

Units

Conditions

FSCL

Standard Mode

100

kHz

Cb = 400 pF, 1.8V - 5.5V

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

100 kHz mode

4700

—

Only relevant for repeated

START condition

Setup time

400 kHz mode

600

—

1.7 MHz mode

160

—

3.4 MHz mode

160

—

THD:STA START condition

100 kHz mode

4000

—

After this period the first

clock pulse is generated

Hold time

400 kHz mode

600

—

1.7 MHz mode

160

—

3.4 MHz mode

160

—

TSU:STO STOP condition

100 kHz mode

4000

—

Setup time

400 kHz mode

600

—

1.7 MHz mode

160

—

3.4 MHz mode

160

—

THD:STO STOP condition

100 kHz mode

4000

—

Hold time

400 kHz mode

600

—

1.7 MHz mode

160

—

3.4 MHz mode

160

—

THVCSU HVC to SCL Setup time

—

High Voltage Commands

THVCHD SCL to HVC Hold time

—

High Voltage Commands

SCL

SDA

START

Condition

STOP

Condition

HVC/A0 VIH

VIHH

VIH or VIL

or VIL

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