ADT7420

Data Sheet

Rev. 0 | Page 16 of 24

This 8-bit read/write register stores the temperature hysteresis

temperature hysteresis value is stored in straight binary format

using four LSBs. Increments are possible in steps of 1°C from

0°C to 15°C. The value in this register is subtracted from the

ment hysteresis.

ID REGISTER

This 8-bit read-only register stores the manufacture ID in Bit 3

to Bit 7 and the silicon revision in Bit 0 to Bit 2. The default

setting for the ID register is 0xCB.

Bit

Default Value

Type

Name

Description

[3:0]

0101

R/W

Hysteresis value, from 0°C to 15°C. Stored in straight binary format. The default setting is 5°C.

[7:4]

0000

R/W

N/A

Not used.

Table 19. ID Register (Register Address 0x0B)

Bit

Default Value

Type

Name

Description

[2:0]

011

R

Revision ID

Contains the silicon revision identification number

[7:3]

11001

R

Manufacture ID

Contains the manufacture identification number