LM77-3EVAL National Semiconductor, LM77-3EVAL Datasheet
LM77-3EVAL
Manufacturer Part Number
LM77-3EVAL
Description
EVALUATION BOARD FOR LM77-3
Manufacturer
National Semiconductor
Specifications of LM77-3EVAL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LM77-3EVAL
N
LM77 9-bit + Sign Temperature Sensor Evaluation Kit Manual
1.0 General Description
The LM77 Evaluation Kit allows quick connection and evaluation of the LM77 9-bit plus Sign
Temperature Sensor integrated circuit. The Evaluation Board connects to and derives all of it’s power from
the parallel printer port of a PC. The software was written using Visual Basic 4.0 is compatible with
Windows version 3.1 or later.
With the LM77 Evaluation board and software you can:
Figure 1 LM77 Evaluation Board
2.0 Installation
The LM77 Evaluation Kit comprises of the LM77 Evaluation board, a 3.5” diskette, and this instruction
manual.
Copyright © July 1999 National Semiconductor
Configure the LM77 register contents
View the LM77 register contents
Save LM77 temperature measurements in a file
Quickly gain knowledge of the LM77 register operation
Insert the floppy into the 3.5” floppy drive of the PC. Install the software in Windows by selecting Run
and type in the name of the drive followed by “setup”. For example type a:\setup.
In setup select the drive you would like the software installed on. Disk space required for the software
is 1MB.
Make sure all the jumpers are installed on the demo board as shown in figure 1.
Run the software. Select the parallel printer port address and the I²C address of the demo board. The
default I2C address is 100 1000 with JP3 and JP4 installed.
1/2
LM77 Evaluation Kit
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LM77-3EVAL Summary of contents
Page 1
... Quickly gain knowledge of the LM77 register operation Figure 1 LM77 Evaluation Board 2.0 Installation The LM77 Evaluation Kit comprises of the LM77 Evaluation board, a 3.5” diskette, and this instruction manual. Insert the floppy into the 3.5” floppy drive of the PC. Install the software in Windows by selecting Run and type in the name of the drive followed by “ ...
Page 2
... Press the ON button on the screen. The software will then report the state of all the registers in the LM77. 3.0 LM77 Evaluation Board Schematic The LM77 Demo Board schematic is shown at the end of this document. The software was pre-configured to run with all of the jumpers installed. Table 1 Jumper Functions ...
Page 3
... LP2950CZ-3.3 1N4001 1N4001 0 HLMP-K150 LM77 Demo Board Schematic VCC 0 SDA + LM77 BAT54 100k 100k HLMP-K150 Title LM77 Small DEMO BOARD Size Wednesday, July 02, 1997 Sheet 1 ...