NXP Semiconductors
UM11737
NCX3310 evaluation board
Number
Net name
Description
J1:6
ED_PU
Event detection pin. Open drain. Pulled up to Vcc by R22 (4.7 kΩ).
J1:7
HPD_PD
Hard-power-down pin. Pulled down to GND by R24 (10 kΩ).
J2:7
GND
Ground
J2:9
SDA
Multiplexed pin: I
2
C SDA data line / GPIO1. Can be optionally pulled up to Vcc
by switch SW3:2 on position, R26 (4.7 kΩ).
J2:10
SCL
Multiplexed pin: I
2
C SCL data line / GPIO0. Can be optionally pulled up to Vcc
by switch SW3:1 on position, R25 (4.7 kΩ).
J3:4
P1V8_3V3_BRD
Lower-voltage source from underlaying board (e.g. MCU board), usually 3.3 V.
J3:5
P5V0
Higher-voltage source from underlaying board (e.g. MCU board), usually 5 V.
J3:6
GND
Ground
J3:7
GND
Ground
Table 2. OM2NTP5332 pinout description
3.1.2 Switches and other components description
Figure 3. Locations of switches and other components
Number
Net name / Options
Description
1-6: PU_EN_SCL
With ON position, Pullup R25 engaged.
2-5: PU_EN_SDA
With ON position, Pullup R26 engaged
SW3
3-4: VOUT
With ON position, NCx3310's VOUT connected to VCC (a must for energy
harvesting)
SW1
HPD_VCC
When HPD is pulled to VCC, NCx3310 enters High Power-down mode. When
released, NCx3310 exits from HPD mode. Can be used as NCx3310 reset.
1.8 - 3.3 V
SW6
5 V
VCC chooser. It only connects voltage from underlaying board or source to the
NCx3310 and whole PCB.
D1
D1
Green LED
JP1
GND
Jumper for easy access to GND.
Table 3. OM2NTP5332 switches and other components description
UM11737
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User manual
Rev. 1.0 — 22 August 2022
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