LM41CIMTX/NOPB National Semiconductor, LM41CIMTX/NOPB Datasheet - Page 17

• Manufacturer Part Number: LM41CIMTX/NOPB
• Description: IC HARDWARE MONITOR 14-TSSOP
• Manufacturer: National Semiconductor

Specifications of LM41CIMTX/NOPB

• Applications: Monitors
• Interface: 1-Wire
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 14-TSSOP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM41CIMTX

000 010 Device ID
000 011
2.0 Register Set
2.5 DEVICE ID (Addr: 000 010; 02h)
The device ID is defined by the manufacturer of the device and is unique for each device produced by a manufacturer. Bits 15-11
identify the revision number of the die and will be incremented upon revision of the device.
2.6 CAPABILITIES FIXED (Addr: 000 011; 03h)
The value of this register defines the capabilities of the LM41. The LM41 supports two functions, that of Temperature
Measurement type (Function 1) and Voltage-Only Measurement type (Function 2). Please refer to the SensorPath specification
for further details on other FuncDescriptor values.
2.7 DEVICE STATUS (Addr: 000 100; 04h)
This register is set to the reset value by a Device Reset.
Reg Add
Reg
Add
Reg
Add
000 100
15-11
10-0
Bit
Bit
3-2
0
1
4
5
6
Register
Name
Register
Name
Capabilities
Fixed
Type
Type
RO
RO
RO
RO
RO
RO
RO
RO
Register Name
Device Status
DeviceID (Device ID Value) A fixed value that identifies the device.
RevID (Revision ID Value) A fixed value that identifies the device revision.
SF1 (Status Function 1) This bit is set by a Function Event within Function 1. Event details are function
dependent and are described within the function. SF1 is cleared by Device Reset or by handling the event
within the Temperature Measurement Function (see Section 2.9 for further details).
0: Status flag for Function 1 is inactive (no event).
1: Status flag for Function 1 is active indicating that a Function Event has occurred.
SF2 (Status Function 2) Same as SF1 for Function 2, Voltage-Only Measurement Function. (see Section
2.10 for further details)
Reserved. Will always read "0".
ERF1 (Error Function 1) This bit is set in response to an error indication within Function 1. ERF1 is cleared
by Device Reset or by handling the error condition within the Temperature Measurement Function (see
Section 2.9 for further details).
0: No error occurred in Function 1.
1: Error occurred in Function 1.
ERF2 (Error Function 2) Same as ERF1 for Function 2, Voltage-Only Measurement Function. (see Section
2.10 for further details)
Reserved. Will always read "0".
R/
R/
W
W
R
R
24h
21h
Val
Val
(Continued)
O
O
P
R
P
R
MSb
MSb
Bit
Bit
15
15
0
0
R/
W
R
Bit
Bit
14
14
0
0
RevID
Val
0h
O
P
R
Bit
Bit
13
13
0
0
Reserved
Bit
Bit
12
12
0
0
Bit 7
BER
Bit
Bit
11
11
0
0
17
Description
Description
Bit 6
Res
Bit
Bit
10
10
0
0
0
Bit
Bit
9
0
9
0
ERF2
Bit 5
Bit
Bit
8
0
8
0
Bit
Bit
ERF1
Bit 4
7
0
7
0
FuncDescriptor2
Bit
Bit
6
0
6
0
DeviceID
Bit 3
Bit
Bit
0
5
1
5
1
Res
Bit
Bit
4
0
4
0
Bit 2
0
Bit
Bit
3
0
3
0
FuncDescriptor1
Bit 1
Bit
Bit
SF2
2
1
2
0
www.national.com
Bit
Bit
1
0
1
0
Bit 0
LSb
SF1
LSb
LSb
Bit
Bit
0
0
0
1