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MCP9805T-BE/ST Datasheet(PDF) 16 Page - Microchip Technology

Part # MCP9805T-BE/ST
Description  Memory Module Digital Temperature Sensor
PDF  34 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP9805T-BE/ST Datasheet(HTML) 16 Page - Microchip Technology

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MCP9805
DS21977B-page 16
© 2005 Microchip Technology Inc.
4.1.5
MANUFACTURER ID REGISTER
This register is used to identify the device manufacturer
in order to perform manufacturer-specific operations.
The manufacturer ID for the MCP9805 is 0x0054
(hexadecimal).
4.1.6
DEVICE ID AND REVISION
REGISTER
The upper byte of this register is used to specify the
device identification and the lower byte is used to
specify device revision. The device ID for the MCP9805
is 0x00 (hex).
The revision begins with 0x00 (hex) for the first release,
with the number being incremented as revised versions
are released.
REGISTER 4-1:
MANUFACTURER ID REGISTER (READ-ONLY)
→ ADDRESS ‘0000 0110’b
Upper-Half:
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
Manufacturer ID
bit 15
bit 8
Lower-Half:
R-0
R-1
R-0
R-1
R-0
R-1
R-0
R-0
Manufacturer ID
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
REGISTER 4-2:
DEVICE ID AND DEVICE REVISION (READ-ONLY)
→ ADDRESS ‘0000 0111’b
Upper-Half:
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
Device ID
bit 15
bit 8
Lower-Half:
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
Device Revision
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown



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