TSL4531 datasheet(4/16 Pages) TAOS

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TSL4531

DIGITAL AMBIENT LIGHT SENSOR

TAOS112 − OCTOBER 2011

E 2011, TAOS Inc.

The LUMENOLOGY

r Company

www.taosinc.com

AC Electrical Characteristics, VDD = 2.5 V, TA = 255C (unless otherwise noted)

PARAMETER†

TEST CONDITIONS

MIN

TYP

MAX

UNIT

f(SCL)

Clock frequency

400

kHz

t(BUF)

Bus free time between start and stop condition

4.7

μs

t(HDSTA)

Hold time after (repeated) start condition. After

this period, the first clock is generated.

μs

t(SUSTA)

Repeated start condition setup time

4.7

μs

t(SUSTO)

Stop condition setup time

μs

t(HDDAT)

Data hold time

300

t(SUDAT)

Data setup time

250

t(LOW)

SCL clock low period

4.7

μs

t(HIGH)

SCL clock high period

μs

t(TIMEOUT)

Detect clock/data low timeout

Clock/data fall time

300

Clock/data rise time

1000

Input pin capacitance

† Specified by design and characterization — not production tested.

PARAMETER MEASUREMENT INFORMATION

Start

Condition

Stop

Condition

SDA

t(SUSTO)

t(SUDAT)

t(HDDAT)

t(BUF)

VIH

VIL

SCL

t(SUSTA)

t(HIGH)

t(F)

t(R)

t(HDSTA)

t(LOW)

VIH

VIL

Figure 1. Timing Diagrams

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