Electronic Thermometer
IZ8016
FEATURES
• Measurement accuracy: ± 1oC • Resolution : 0.2oC (oF) • 31/2 + 7 Indicators, 1/2 duty LCD • Low power ...
Description
IZ8016
FEATURES
Measurement accuracy: ± 1oC Resolution : 0.2oC (oF) 31/2 + 7 Indicators, 1/2 duty LCD Low power consumption Few external components Easiness in adjustment Single 1.5V battery operation Bare chip is available
FUNCTIONS
Measurable temperature range –49oC ~ +49.8oC -57oF ~ +121.8oF Suitable Thermistor RT=10kΩ ± 1% (at 25oC) Sampling Cycle 1 seconds, 3 seconds, 5 seconds, 10 seconds (Default 10 sec) Oscillation Frequency 32.768 KHz Temperature adjustment: Adjustment of temperature is made by adjusting fundamental resistance against dispersion in resistance values of thermistors
ELECTRICAL CHARACTERISTICS
(Ta = 25oC, VSS = 0V, VCC = 1.5V unless otherwise specified) Characteristic Operating Voltage LCD Voltage Supply Current
APPLICATION CIRCUIT
m o .c U 4 t e e h S a t a .D w w w
Symbol VCC VDD ICC ISTD Test Condition Min 1.20 Typ Max 2.00 80 Operating Standby 1.50 3.00 50 5 10
24 23 26 25 28 27 20 19 18 22 21 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 17 29 COM1 SEG13 16 SEG14 15 COM2 14
Unit V V µA µA
0.1µF
30 VDD 31 V SS
BT8016
VCC (Def ault C) INT to CPU
O
32 CF
IZ8016
33 INT 34 MD
Chip size, mm: 2,80 x 2,30
CAP2 13
Data Output
Serial Clock Input
35 SHCK 36 OSC1 OSC2 PUR 2 1 S1 S2 3 4 CAP1T1 T2 ADJ REF 5 6 7 8 9
V CC 12 CAP 11 THER 10
1M
0.1µF VCC (Adjust) 10K TM 2nF
Default: 10 sec
TM – Thermistor CN36-2H103FB
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