MCP9808 datasheet(33/52 Pages) MICROCHIP

部件名	MCP9808

功能描述	짹0.5째C Maximum Accuracy Digital Temperature Sensor

PDF	52 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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33 / 52 page

DS25095A-page 33

MCP9808

5.3

Summary of Power-on Default

The MCP9808 has an internal Power-on Reset (POR)

circuit. If the power supply voltage, VDD, glitches below

the VPOR threshold, the device resets the registers to

the power-on default settings.

Table 5-3 shows the power-on default summary for the

Temperature Sensor registers.

TABLE 5-3:

POWER-ON RESET DEFAULTS

Registers

Default Register

Data (Hexadecimal)

Power-Up Default

Address

(Hexadecimal)

0x01

CONFIG

0x0000

Comparator Mode

Active-Low Output

Alert and Critical Output

Output Disabled

Alert Not Asserted

Interrupt Cleared

Alert Limits Unlocked

Critical Limit Unlocked

Continuous Conversion

0°C Hysteresis

0x02

TUPPER

0x0000

0°C

0x03

TLOWER

0x0000

0°C

0x04

TCRIT

0x0000

0°C

0x05

0x0000

0°C

0x06

Manufacturer ID

0x0054

0x0054 (hex)

0x07

Device ID/Device Revision

0x0400

0x0400 (hex)

0x08

Resolution

0x03

0x03 (hex)

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