SI7005USB-DONGLE 데이터 시트보기 (PDF) - Silicon Laboratories

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SI7005USB-DONGLE

DIGITAL I2C HUMIDITY AND TEMPERATURE SENSOR

Silicon Laboratories 

Si7005

1. Electrical Specifications

Unless otherwise specified, all min/max specifications apply over the recommended operating conditions.

Table 1. Recommended Operating Conditions

Parameter

Power Supply

Operating Temperature

Operating Temperature

Symbol

VDD

TA

TA

Test Condition

G grade

F grade

Min Typ Max Unit

2.1

3.3

3.6

V

–40

—

85

°C

0

—

70

°C

Table 2. General Specifications

2.1  VDD  3.6 V; TA = 0 to 70 °C (F grade) or –40 to 85 °C (G grade) unless otherwise noted.

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Input Voltage High

Input Voltage Low

Input Voltage Range

VIH

CS, SCL, SDA pins

0.7xVDD

—

—

V

VIL

CS, SCL, SDA pins

—

—

0.3xVDD

V

VIN

SCL, SDA pins with respect 0.0

—

3.6

V

to GND

CS, CEXT pin with respect to

0.0

—

VDD

V

GND

Input Leakage

Output Voltage Low

IIL

CS, SCL, SDA pins

—

—

±1

µA

VOL

SDA pin; IOL = 8.5 mA;

—

—

0.6

V

VDD = 3.3 V

SDA pin; IOL = 3.5 mA;

—

—

0.4

V

VDD = 2.1 V

Notes:

1. Si7005 can draw excess current if VDD and CS are ramped high together. To enter the lowest power mode, either hold

CS low while VDD ramps or pulse CS low after VDD reaches its final value.

2. SDA and SCL pins have an internal 75 k pull-up resistor to VDD.

4

Rev. 1.3

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