Fan-Speed Regulators and Monitors

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3

ELECTRICAL CHARACTERISTICS (continued)

TIMING CHARACTERISTICS

Selects slave address 1001 011 (Table 1)

Selects slave address 1001 000 (Table 1)

Selects slave address 0011 111 (Table 1)

Minimum resistance to GND, selects slave

address 0011 011 (Table 1)

CONDITIONS

V

ADD Input High Voltage

V

0.1

ADD Input Low Voltage

k

Ω

9.5

10.5

ADD External Pulldown Resistor

to GND

k

Ω

5

Open Resistance

µA

40

80

ADD Pullup Current

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

mA

6

Data Output Sink Current

≤ 3.6V

V

2

V

0.8

Input Low Voltage

µA

±1

Input Leakage Current

3

Input High Voltage

mV

200

Input Hysteresis

ADDRESS SELECT (ADD)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

µs

500

Minimum pulse duration

Glitch Rejection

kHz

254

Clock Frequency

kHz

0

400

SCL Clock Frequency

µs

1.3

Bus Free Time Between Stop

and Start Condition

Hold-Time Start Condition

0.6

µs

µs

1.3

Low Period of the SCL Clock

High Period of the SCL Clock

0.6

µs

µs

0

900

(Note 3)

Data Hold Time

Data Setup Time

100

ns

ns

300

(Note 4)

Rise-Time SDA/SCL Signal

(Receiving)

Fall-Time SDA/SCL Signal

(Receiving)

(Note 4)

300

ns

ns

250

Fall-Time SDA Signal

(Transmitting)

%

-10

+10

Clock Frequency Uncertainty

TACHOMETERS

GPIO2 (Note 2)