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Thermal Sensor MICROCHIP TC74A1-3.3VAT Digital Temperature Measurement with SMBus I2C Compatibility

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Thermal Sensor MICROCHIP TC74A1-3.3VAT Digital Temperature Measurement with SMBus I2C Compatibility

Temperature Range : -40℃~+125℃

Interface : I2C;SMBus

Voltage - Supply : 2.7V~5.5V

Description : -40℃~+125℃ 2.7V~5.5V TO-220-5 Analog and Digital Output RoHS

Mfr. Part # : TC74A1-3.3VAT

Model Number : TC74A1-3.3VAT

Package : TO-220-5

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Product Overview

The TC74 is a serially accessible, digital temperature sensor designed for low-cost, small-form-factor applications. It provides temperature data as an 8-bit digital word via a 2-wire SMBus/I2C compatible serial port. Key features include solid-state sensing with high accuracy, a wide supply voltage range, and low power consumption in both operating and standby modes. Its ease of use and small size make it ideal for thermal management in various systems.

Product Attributes

Brand: Microchip Technology Inc.
Origin: Not specified
Material: Not specified
Color: Not specified
Certifications: Not specified

Technical Specifications

Parameter	Symbol	Min	Typ	Max	Units	Conditions
Power-on Reset Threshold	VPOR	1.2		2.2	V	VDD Falling Edge or Rising Edge
Supply Voltage	VDD	2.7		5.5	V	Note 5
Operating Current	IDD		200	350	A	VDD = 5.5V, Note 1
Standby Supply Current	IDD-STANDBY		5.0	10	A	VDD = 3.3V, Serial Port Inactive, Note 4
Temperature Accuracy	TERR		2.0		C	+25C < TA < +85C
Temperature Accuracy	TERR		3.0		C	0C < TA < +125C
Conversion Rate	CR	4	8		SPS	Note 2
Logic Input High	VIH	0.8 x VDD			V
Logic Input Low	VIL			0.2 x VDD	V
SDA Output Low	VOL			0.4	V	IOL = 3 mA
SDA Output Low	VOL			0.6	V	IOL = 6 mA, Note 3
Input Capacitance	CIN		5.0		pF	SDA, SCLK
I/O Leakage	ILEAK	-1.0	0.1	1.0	A
SMBus/I2C Clock Frequency	fSMB	10		100	kHz	Serial Port AC Timing (CLOAD = 80 pF)
Low Clock Period	tLOW	4.7			sec	10% to 10%
High Clock Period	tHIGH	4.0			sec	90% to 90%
SMBus/I2C Rise Time	tR			1000	nsec	10% to 90%
SMBus/I2C Fall Time	tF			300	nsec	90% to 10%
START Condition Setup Time	tSU(START)	4.0			sec	90% SCLK to 10% SDA
START Condition Hold Time	tH(START)	4.0			sec
Data In Setup Time	tSU-DATA	1000			nsec
Data In Hold Time	tH-DAT	1250			nsec
STOP Condition Setup Time	tSU(STOP)	4.0			sec
Bus Free Time Prior to New Transition	tIDLE	4.7			sec
Power-on Reset Delay	tPOR		500		sec	VDD VPOR (Rising Edge)

2410121852_MICROCHIP-TC74A1-3-3VAT_C641444.pdf

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