器件名称: IZ8005
功能描述: CLINICAL THERMOMETER
文件大小: 234.14KB 共6页
简 介:IZ8005 CLINICAL THERMOMETER
General Description
The IZ8005 is a CMOS digital clinical thermometer IC for measuring body temperature from 32.00°C~43.00°C. It also provides alarm, self-test, auto power off and last time measured temperature functions. The other electronic components are LCD display, thermister, 1.5V battery, ON/OFF switch, buzzer, resistors and capacitors.
Features
Single-chip CMOS construction Single 1.5V battery operation Measurement range: +32.00°C ~ +43.00°C Measurement accuracy: ±0.1°C Resolution: 0.01°C Auto self-test Alarm warning for fever Highest temperature hold Auto power off after 8 min 40 sec One-key input switch for ON/OFF Displays last time measured temperature
Block Diagram
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IZ8005
Pad Assignment
37
Chip size: 1.97 x 2.12 mm2 * The IC substrate should be connected to VDD in the PCB layout artwork.
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IZ8005
Pad Description
Pad 1~3 4~6 7~19 10~12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35~37 Pad Name SA1~SA3 SB1~SB3 SC1~SC3 SD1~SD3 SE1 VEE CAP C512 TV TEST1 LOWC VSS SC RF RS VDD PSW TEST2 INIT ML FEVL S804KL OSCI OSCO BZ1 BZ2 COM1~COM3 I/O O O O O O O O O B I B I B O O I I I I I I I I O O O O Function LCD segment drive LCD segment drive LCD segment drive LCD segment drive LCD segment drive Generate negative voltage (–1.5V) For negative voltage, NMOS output For negative voltage, inverter output Test pin for IC Test pin for IC For the supply voltage detector. Open the pin when not in use. Power supply GN……
