MCP960X datasheet(9/57 Pages) MICROCHIP

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DS20005426G-page 9

MCP960X/L0X/RL0X

FIGURE 1-2:

Timing Diagram.

SENSOR SERIAL INTERFACE TIMING SPECIFICATIONS

Electrical Specifications: Unless otherwise indicated, GND = Ground, TA = -40°C to +125°C, VDD = 2.7V to 5.5V

and CL =80 pF (Note 1).

Parameters

Sym.

Min.

Max.

Units

Two-Wire I2C Interface

Serial Port Frequency

fSCL

100

kHz

Low Clock (Note 2)

tLOW

4700

—

High Clock

tHIGH

4000

—

Rise Time (Note 3)

—

1000

Fall Time (Note 3)

300

Data in Setup Time (Note 2)

tSU:DAT

250

—

Data in Hold Time

tHD:DAT

0—

Start Condition Setup Time

tSU:STA

4700

—

Start Condition Hold Time

tHD:STA

4000

—

Stop Condition Setup Time

tSU:STO

4000

—

Bus Idle/Free

tB-FREE

—

µs

Bus Capacitive Load

—400

Clock Stretching (Note 4)

tSTRETCH

—

µs

Note 1

All values referred to VIL MAX and VIH MIN levels.

This device can be used in a Standard mode I2C bus system, but the requirement, tSU:DAT  250 ns, must

be met.

Characterized, but not production tested.

Host controllers without features to detect clock stretching by device should increase the tLOW period for

Read Commands to a minimum of tSTRETCH (60 us) for a proper I2C communication. See Figure 2-29 for a

typical tSTRETCH performance.

Start Condition

Data Transmission

Stop Condition

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