LM76-NEVAL National Semiconductor, LM76-NEVAL Datasheet - Page 2

• Manufacturer Part Number: LM76-NEVAL
• Description: EVALUATION BOARD FOR LM76-N
• Manufacturer: National Semiconductor

Specifications of LM76-NEVAL

• Sensor Type: Temperature
• Sensing Range: -55°C ~ 125°C
• Interface: I²C
• Sensitivity: ±1°C
• Voltage - Supply: 3.3V
• Embedded: No
• Utilized Ic / Part: LM76
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM76-NEVAL

N
3.0 LM76 Evaluation Board Schematic
The LM76 Evaluation Board schematic is shown in figure 2. The software was pre-configured to run
with all of the jumpers installed.
Table 1 Jumper Functions
Jumper
JP1
JP2
JP3
JP4
JP5
The LM76 comes with shorting bars across 2 pin headers JP2, JP3, JP4, JP5.
Table 2 JP1 Description
Pin Number
1
2
3
4
5
6
7
8
4.0 LM76 Evaluation Board Bill of Materials
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
NOTE: TH = Through hole
Copyright © July 1999 National Semiconductor
Run the software. Select the parallel printer port address and the I²C address of the Evaluation
board default 00.
Connect the board to the parallel printer port of the PC directly or through a cable not longer than 3
feet.
Press the ON button on the screen. The software will then report the state of all the registers in the
LM76.
Qty
2
1
2
2
2
1
4
1
4
2
1
1
4
Reference
C1, CB
C2
D1, D2
D3, D6
D4, D5
JP1
JP2, JP3, JP4, JP5
P1
R1, R4, R5, R6
R2, R3
U1
U2
JP2, JP3, JP4, JP5
Description
SDA
SCL
Label OS on Board but maps to T_CRIT_A pin on LM76
GND
A1
A0
INT
+Vs
Function
Mapped to the corresponding pin on the LM76 (see Table 2)
Monitoring LED connection to pin OS/T_CRIT_A pin when short is
installed.
Connects A0 to logic 0 when short is installed; connects A0 to logic 1
when short is not present.
Connects A1 to logic 0 when short is installed; connects A1 to logic 1
when short is not present.
Monitoring LED connection to INT pin when short is installed.
2/2
Description
0.1 uF, 0805, 25V, +80%-20%
10 uF, 1206
BAT54, SOT23
BAT54, SOT23
RED LED, HLMP K150, TH
HEADER 8X1, TH
HEADER 2X1, TH
DB25, MALE RIGHT ANGLE
2K, 1/8 W, 0805, 5%
100K, 1/8 W, 0805, 5%
LP2950CZ-3.3, TH
LM76CNM-3
JUMPERS
LM76 Evaluation Kit