GENERAL DESCRIPTION

The SGM458 is a low power, low supply voltage, CSP

package, serial control interface and digital output

temperature sensor with an accuracy of ±1℃ (TYP) in

the temperature range of -55℃ to +125℃. The serial

two-wire interface supports traditional I

2

C bus or

SMBus interface. Multiple device access instruction is

used in this serial bus, so multiple SGM458 devices (up

to three) can share one serial bus. The micro-controller

will communicate with these devices on the bus without

sending separate instructions which increases the

efficiency of software. In multiple hot points monitoring

systems such as computing platform, the design can be

realized by connecting one serial bus with multiple

temperature sensors. The SGM458 has a power supply

voltage range of 1.6V to 5.5V, so the 1.8V I/O of the

micro-controller can be used as the power supply of

SGM458.

The SGM458 is available in a Green WLCSP-0.85×

0.85-4B package and specified over a temperature

range of -55℃ to +125℃.

FEATURES

● 1.6V to 5.5V Supply Voltage Range

● Two-Wire Interface Supports 1.8V, 2.8V, 3.3V and

5.0V Logic

● Temperature Accuracy:

-55℃ to +125℃: ±1℃ (TYP)

● Resolution: 12 Bits or 8 Bits

● Support Multiple Devices in One Serial Bus

● Serial Control Bus is Compatible with I

2C and SMBus Interface

● Low Quiescent Current (IQ): 2.9μA at 0.25Hz

● Shutdown Mode Current: 0.7μA (TYP)

● Available in a Green WLCSP-0.85×0.85-4B

Package

APPLICATIONS

Smart Phone

Temperature Monitor in Computing Platform

Industrial Control

Temperature Monitor in Power System