TCS3404 datasheet(4/40 Pages) TAOS

4 / 40 page

TCS3404, TCS3414

DIGITAL COLOR SENSORS

TAOS137A − APRIL 2011

E 2011, TAOS Inc.

The LUMENOLOGY

r Company

www.taosinc.com

Electrical Characteristics, TA = 255C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Power on (ADC inactive)

7.7

IDD

Supply current @ VDD = 3.6 V

Power on (ADC active)

8.7

IDD

Supply current @ VDD

3.6 V

Power down

700

1000

μA

VOL

INT, SDA output low voltage

3 mA sink current

0.4

I LEAK

Input leakage current (SDA, SCL, SYNC)

VIH = VDD, VIL = GND

−5

μA

AC Electrical Characteristics, VDD = 3.3 V, TA = 255C (unless otherwise noted)

PARAMETER†

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Clock frequency 400 kHz (I2C)

400

kHz

f(SCL)

Clock frequency 100 kHz (SMBus)

100

kHz

t(BUF)

Bus free time between start and stop condition

1.3

μs

t(HDSTA)

Hold time after (repeated) start condition. After

this period, the first clock is generated.

0.6

μs

t(SUSTA)

Repeated start condition setup time

0.6

μs

t(SUSTO)

Stop condition setup time

0.6

μs

t(HDDAT)

Data hold time

0.9

μs

t(SUDAT)

Data setup time

100

t(LOW)

SCL clock low period

1.3

μs

t(HIGH)

SCL clock high period

0.6

μs

t(TIMEOUT)

Detect clock/data low timeout (SMBus only)

Clock/data fall time

300

Clock/data rise time

300

Input pin capacitance

tLOW (SYNC)

SYNC low period (see Figure 1)

μs

tHIGH (SYNC)

SYNC high period (see Figure 1)

μs

tF (SYNC)

SYNC fall time (see Figure 1)

tR (SYNC)

SYNC rise time (see Figure 1)

† Specified by design and characterization; not production tested.

tHIGH (SYNC)

tF (SYNC)

tR (SYNC)

tLOW (SYNC)

Figure 1. Timing Diagram for Sync

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