LM99-1EVAL/NOPB National Semiconductor, LM99-1EVAL/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM99-1EVAL/NOPB
• Description: BOARD EVALUATION LM99-1
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM99-1EVAL/NOPB

• Sensor Type: Temperature
• Sensing Range: 0°C ~ 125°C
• Interface: SMBus (2-Wire/I²C)
• Sensitivity: ±1°C
• Voltage - Supply: 3 V ~ 3.6 V
• Embedded: No
• Utilized Ic / Part: LM99-1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q3777902

7
AT24C02-10SI-2.7
1 uH
SHELL_1
SHELL_2
1
2
3
4
L1
USB-B
J3
VBUS
U4
GND
A0
A1
A2
Vss
D+
D-
C14
2.2uF
1
2
3
4
5
6
SCL
SDA
Vcc
R12
1M
WP
C15
0.1uF
8
7
6
5
1
LP2950CDT-3.3/TO252
IN
GND
U1
OUT
C16
2.2uF
R7 22
R9 22
R11 1.5K
1.5K
R13
3
+ 3.3 VDC
0.1uF
1.5K
R14
C17
0.1uF
C18
0.1uF
C20
SCL
SDA
R3
100k
28
24
25
18
10
11
12
2
3
+ 3.3 VDC
RESET#
USBD-
USBD+
DISCON#
PA4/FWR#
PA5/FRD#
CLKOUT
SCL
SDA
4.0 Schematic of the LMxx Evaluation Board
0.1uF
+ 3.3 VDC
C1
Figure 4. LMxx Evaluation Board Schematic
C2
0.1uF
CY7C64603-52NC
Use a 0.1 uF capacitor for each
Vcc pin of U2 and Reserved_6 pin.
0.1uF
U2
C3
C9
33pF
0.1uF
C4
CTL2/AOUTFLAG
12 MHz
CTL0/AINFLAG
0.1uF
Y1
R4
1M
PB7/T2OUT
PC2/INT0#
PC3/INT1#
C5
PC0/RxD0
PC1/TxD0
PC6/WR#
PB6/INT6
PC7/RD#
PC4/T0
PC5/T1
0.1uF
C6
35
36
37
41
43
44
45
46
48
49
50
51
C10
33pF
TCRIT
ALERT#
MMBT3904/SOT
Q1
7
Shunt to select the PCB
temperature diode.
SCL
SDA
2
4
C11
2.2uF
HEADER 2x2
J4
1
3
C12
0.1uF
100 pF
C13
C19
2.2 nF
+ 3.3 VDC
R1
0
1
2
3
4
VDD
D+
D-
TCRIT#
LMxx
U3
ALERT#
SMBCLK
SMBDAT
ALERT#
GND
8
7
6
5
ALERT#
SCL
SDA
1.5K
R2
R15
1.5K
ALERT#
TCRIT
+3.3 VDC
SCL
SDA
HEADER 1X7
JP2
1
3
2
4
5
6
7
TP1
GND
TP2
GND
TP3
GND
TP4
GND