文档介绍：CH2116B
CH2116B 3 1/2 Digit Clinical Thermometer
1. General Descriptions
CH2116B is a CMOS digital clinical thermometer IC for measuring body temperature in
Centigrade(℃) or Fahrenheit(℉) mode by its bonding option. It also provides alarm and auto power off
functions. The other electronic components are LCD display, thermistor, battery, ON/OFF switch,
buzzer, resistors and capacitors.
2. Features
◆ Single battery operation
◆ Single-chip CMOS construction
◆ Centigrade/ Fahrenheit measurement by bonding option
◆ Measurement range: +～+℃(+～+℉)
◆ Resolution: ℃(℉)
◆ Measurement accuracy: ±℃(±℉)
◆ One-key input for ON/OFF
◆ Fever alarm
◆ Highest temperature hold
◆ Auto power off after 8 min 40 sec
◆ Last time measured temperature displaying
3. Function Block Diagram
OSCI System Counter and LOWC
TIMER BZ1
OSCO
OSC Comparator BZ2
TEST2 Control Voltage C