TCN75-3.3MUA datasheet(7/20 Pages) MICROCHIP

部件名	TCN75-3.3MUA

功能描述	2-Wire Serial Temperature Sensor and Thermal Monitor

PDF	20 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

标志

7 / 20 page

 2001-2012 Microchip Technology Inc.

DS21490D-page 7

TCN75

3.6

Comparator/Interrupt Modes

INT/CMPTR behaves differently depending on whether

the TCN75 is in Comparator mode or Interrupt mode.

Comparator mode is designed for simple thermostatic

operation. INT/CMPTR will go active anytime TEMP

exceeds TSET. When in Comparator mode, INT/

CMPTR will remain active until TEMP falls below

THYST, whereupon it will reset to its inactive state. The

state of INT/CMPTR is maintained in Shutdown mode

when the TCN75 is in Comparator mode. In Interrupt

mode, INT/CMPTR will remain active indefinitely, even

if TEMP falls below THYST, until any register is read via

the 2-wire bus. Interrupt mode is better suited to inter-

rupt driven microprocessor-based systems. The INT/

CMPTR output may be wire-OR’ed with other interrupt

sources in such systems. Note that a pull-up resistor is

necessary on this pin since it is an open-drain output.

Entering Shutdown mode will unconditionally reset INT/

CMPTR when in Interrupt mode.

TCN75-3.3MUA 数据表(PDF) 7 Page - Microchip Technology