MCP98243 datasheet(15/62 Pages) MICROCHIP

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DS22153C-page 15

MCP9843/98243

5.0

FUNCTIONAL DESCRIPTION

The MCP9843/98243 temperature sensors consists of

a band-gap type temperature sensor, a Delta-Sigma

Analog-to-Digital Converter (

ΣΔ ADC), user-program-

mable registers and a 2-wire I2C protocol compatible

serial interface. Figure 5-1 shows a block diagram of

the register structure.

FIGURE 5-1:

Functional Block Diagram.

Clear Event

0.5°C/bit

0.25°C/bit

0.125°C/bit

0.0625°C/bit

Temperature

TUPPER

TLOWER

Configuration

ΣΔ ADC

Band-Gap

Temperature

Sensor

Event Status

Output Control

Critical Event only

Event Polarity

Event Comp/Int

TCRIT

Capability

Temp. Range

Accuracy

Output Feature

Pointer

Critical Trip Lock

Alarm Win. Lock Bit

Shutdown

Hysteresis

Manufacturer ID

Resolution

Memory

Control

Logic

Address

Standard

Array

Write

Write Protect

Circuitry

Sense Amp

R/W Control

Protected

(00h-7Fh)

(80h-FFh)

Device ID/Rev

Selected Resolution

HV Generator

Decoder

Array

Address Decoder

Standard I2C

Interface

Event

SDA

SCL

VDD

GND

I2C Bus Time-out

Accepts VHV

Shutdown Status

MCP9843/98243 Temperature Sensor

MCP98243 EEPROM

MCP98243 Datasheet(PDF) 15 Page - Microchip Technology

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