MIC281 datasheet(4/12 Pages) MICREL

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MIC281

Micrel

MIC281

November 2004

Symbol

Parameter

Condition

Min

Typ

Max

Units

Serial Clock Input, CLK

VIL

Low Input Voltage

3.0V ≤ VDD ≤ 3.6V

0.8

VIH

High Input Voltage

3.0V ≤ VDD ≤ 3.6V

2.1

5.5

CIN

Input Capacitance,

Note 5

ILEAK

Input current

±1

µA

Serial Interface Timing

CLK (clock) period

2.5

µs

Data in Setup Time to CLK High

100

Data Out Stable After CLK Low

300

DATA Low Setup Time to CLK Low

Start Condition

100

DATA High Hold Time After CLK High Stop Condition

100

tTO

Bus timeout

Note 1. The device is not guaranteed to function outside its operating range.

Note 2. Final test on outgoing product is performed at TA = 25°C.

Note 3. TD is the temperature of the remote diode junction. Testing is performed using a single unit of one of the transistors listed in Table 5.

Note 4. Current into the DATA pin will result in self-heating of the device. Sink current should be minimized for best accuracy.

Note 5. Guaranteed by design over the operating temperature range. Not 100% production tested.

Note 6. Accuracy speciﬁcations do not include quantization noise which may be up to ± 0.5LSB.

Note 7. Devices are ESD sensitive. Observe appropriate handling precautions.

Timing Diagram

SCL

SDA

DATA INPUT

SDA

DATA OUTPUT

Serial Interface Timing

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