Outline
Applications Specification
Flat TVs System temperature monitering
Tablet PCs, PCs Office automation equipments
PC servers / network servers
Features
① Low voltage operation: 3.0V to 5.5V
② Low current consumption: 75µA typ.
③ Fast update of time: 2ms typ.
④ Accuracy: ±2.0°C ( 25°C to +100°C)
⑤ Resolution: 9 bits (0.5°C)
⑥ Shutdown mode minimizing current consumption
⑦
I
2
C BUS compatible interface
Block Diagram Package
1) SOT-26A(MM3285C) 2) SOT-25A(MM3285F)
*pic：MM3285C
Application circuit
*pic：MM3285C
VOperating voltage 3.0 ～ 5.5
µA
℃
Supply current 75 (typ.)
Temperature accuracy
±2.0（−25～＋100℃）
bit
ms
Resolution 9（0.5℃）
Temperature Sensor IC (Digital Output)
℃
MM3285
Item Specification Unit
Operation temperature
ー40 ～ +125
This IC is an I2C BUS compatible digital temperature sensor IC incorporating a temperature sensor and
sigma-delta AD converter. It provides low current consumption and I2C BUS compatible interface, which
makes it ideal for a wide range of applications.
Data update time 2
Start-up Reset Voltage
2.1 V
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■ Any products mentioned in this leaflet are subject to any modification in their appearance and others for improvements without prior notification.
■ The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
PIN No. PIN NAME
1 SCL
2 BND
3 A1
4 VDD
5 SDA
PIN No. PIN NAME
1 SCL
2 BND
3 A1
4 VDD
5 A0
6 SDA
I
2
C Interface
Configuration
Register
Pointer Register
Temperature
Sensor
9Bit Sigma-Delta
A/D Converter
SDA
SCL
A
0
A
1
V
DD
GND
0.1uF
10kΩ
10kΩ
VDD
A0 SDA
A1 SCL
GND
3.3V
MASTER
MM3285
September 2020 Rev.3