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Digital Temperature Sensor Mysentech MY18E20 with Single Bus Protocol and Precise Temperature Sensing

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Digital Temperature Sensor Mysentech MY18E20 with Single Bus Protocol and Precise Temperature Sensing

Temperature Range : -55℃~+125℃

standby current : 200nA

Interface : Single-bus

Temperature Conversion Time : 500ms

Temperature Resolution : 14bit

Voltage - Supply : 1.8V~5.5V

Description : Temperature Sensor -55℃~+125℃ 14bit TO-92

Mfr. Part # : MY18E20

Model Number : MY18E20

Package : TO-92

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MY18 Series Digital Temperature Sensors

Product Overview
The MY18E20, MY1820, MY18B20Z, and MY18B20L are digital analog mixed-signal temperature sensing chips offering high accuracy without user calibration. Leveraging CMOS semiconductor PN junction temperature and bandgap voltage characteristics, these chips provide precise temperature measurements with advantages including high accuracy, good consistency, low power consumption, flexible programmable configuration, and long lifespan. They feature a built-in 14-bit ADC with a resolution of 0.0125C (default 12-bit ADC, 0.0625C resolution) and an operating range of -55C to +125C. Each chip is 100% tested and calibrated at the factory. The digital single-bus protocol simplifies system integration, requiring only one GPIO port for communication. This protocol enables cost-effective multi-node sensing and networking, supporting up to 100 nodes in a series network spanning 100 to 500 meters. The chips include non-volatile E2PROM for storing ID, alarm thresholds, calibration values, and user-defined information. Available in TO-92, TO92S, SOP8, and TO-92L packages, with the TO-92L offering ESD protection up to 15000V.

Product Attributes

Brand: mysentech
Communication Protocol: Single-Bus (1-Wire)

Technical Specifications

Model	Max Accuracy	Accuracy Range	Package	Temperature Conversion Time
MY18E20	0.5	-10C~+85C	TO-92	500ms
MY18E20-15	0.5	-10C~+85C	TO-92	15ms
MY18E20D10	1	0C~+60C	TO-92	500ms
MY1820	0.5	-10C~+85C	TO92S	500ms
MY1820-15	0.5	-10C~+85C	TO92S	15ms
MY1820D10	1	0C~+60C	TO92S	500ms
MY18B20Z	0.5	-10C~+85C	SOP8	500ms
MY18B20Z-15	0.5	-10C~+85C	SOP8	15ms
MY18B20ZD10	1	0C~+60C	SOP8	500ms
MY18B20L	0.5	-10C~+85C	TO-92L	500ms
MY18B20L-15	0.5	-10C~+85C	TO-92L	15ms
MY18B20LD10	1	0C~+60C	TO-92L	500ms

Key Features

Temperature Measurement Accuracy: 0.5 (typical, -10C to +85C)
Temperature Measurement Range: -55C to +125C
Low Power Consumption: 0.2A standby current @ 5V, 5A average current @ 1Hz
Wide Operating Voltage: 1.8V - 5.5V
Temperature Resolution: 12-bit ADC (0.0625C), configurable to 14-bit (0.0125C)
Configurable Temperature Conversion Time: 500ms / 15ms
80-bit additional E2PROM for user information
Unique 64-bit ID for multi-point networking
User-configurable alarm thresholds
Standard single-bus interface for distributed multi-node sensing

Applications

Industrial Monitoring
Smart Hardware
Smart Agriculture
Instrumentation
Smart Home Appliances
Multi-point Series Temperature Measurement

Pin Descriptions

MY18E20 (TO-92)

Pin 1: GND (Ground)
Pin 2: DQ (Single-Bus Digital Interface)
Pin 3: VDD (Power Supply)

MY1820 (TO92S)

Pin 1: GND (Ground)
Pin 2: DQ (Single-Bus Digital Interface)
Pin 3: VDD (Power Supply)

MY18B20Z (SOP8)

Pins 1, 2, 3, 5, 6, 7: NC (Not Connected)
Pin 4: DQ (Single-Bus Digital Interface)
Pin 8: VDD (Power Supply)

MY18B20L (TO-92L)

Pin 1, 2, 6, 7, 8: NC (Not Connected)
Pin 3: VDD (Power Supply)
Pin 4: DQ (Single-Bus Digital Interface)
Pin 5: GND (Ground)

Electrical Characteristics

Parameter	Symbol	Conditions	Min	Typical	Max	Unit	Notes
Supply Voltage	VDD	Power Supply	1.8	-	5.5	V
Temperature Error	tERR	-10C to +85C	-	-	0.5	C
Temperature Error	tERR	-55C to +125C	-	-	1.5	C
Standby Current	IDDS	Idle State	-	0.2	-	A	GNDDQGND+0.3V or VDD-0.3VDQVDD
Temperature Measurement Peak Current	IDD	VDD=5V	-	350	-	A
Non-Volatile Memory Write Cycle Time	tWR	-	-	-	40	ms
E2PROM Write Cycles	NEEWR	-55C to +55C	50000	-	-	times
E2PROM Data Retention	tEEDR	-55C to +55C	-	10	-	years
Temperature Conversion Time	tCONV	See Notes	15	100	500	ms	Configurable

Ordering Information

Model	Max Accuracy	Accuracy Range	Package	Minimum Packaging
MY18E20	0.5	-10C~+85C	TO-92	2K/bag or 1K/bag
MY18E20-15	0.5	-10C~+85C	TO-92	2K/bag
MY18E20D10	1	0C~+60C	TO-92	2K/bag
MY1820	0.5	-10C~+85C	TO92S	2K/bag or 1K/bag
MY1820-15	0.5	-10C~+85C	TO92S	2K/bag
MY1820D10	1	0C~+60C	TO92S	2K/bag
MY18B20Z	0.5	-10C~+85C	SOP8	4K/tray
MY18B20Z-15	0.5	-10C~+85C	SOP8	4K/tray
MY18B20ZD10	1	0C~+60C	SOP8	4K/tray
MY18B20L	0.5	-10C~+85C	TO-92L	2K/bag
MY18B20L-15	0.5	-10C~+85C	TO-92L	2K/bag
MY18B20LD10	1	0C~+60C	TO-92L	2K/bag

2406181623_Mysentech-MY18E20_C2843534.pdf

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