ISL29029 데이터 시트보기 (PDF) - Intersil

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ISL29029

Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes

Intersil 

ISL29029

I2C Electrical Specifications For SCL and SDA unless otherwise noted, VDD = 3V, TA = +25°C, REXT = 499kΩ 1% tolerance

(Note 12). (Continued)

PARAMETER

DESCRIPTION

CONDITION

MIN

TYP MAX UNIT

tSU:DAT

tR

tF

tSU:STO

tBUF

Data Set-up Time

Rise Time of both SDA and SCL Signals

Fall Time of both SDA and SCL Signals

Set-up Time for STOP Condition

Bus Free Time Between a STOP and START

Condition

(Note 13)

(Note 13)

100

ns

20 + 0.1xCb

ns

20 + 0.1xCb

ns

600

ns

1300

ns

Cb

Capacitive Load for Each Bus Line

Rpull-up SDA and SCL system bus pull-up resistor

Maximum is determined by tR and tF

tVD;DAT

Data Valid Time

tVD:ACK Data Valid Acknowledge Time

VnL

Noise Margin at the LOW Level

VnH

Noise Margin at the HIGH Level

NOTES:

12. All parameters in I2C Electrical Specifications table are guaranteed by design and simulation.

13. Cb is the capacitance of the bus in pF.

1

0.1VDD

0.2VDD

400 pF

kΩ

0.9 µs

0.9 µs

V

V

FIGURE 1. I2C TIMING DIAGRAM

5

FN7682.0

November 23, 2010

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