NXP Semiconductors
LPCXpresso55S36UM
LPCXpresso55S36 Development Board User Manual
Power source
Manufacturing part
number
Power supply rail
Description
From VCC_3V3 /
VCC_1V9 supply through
jumper JP1
VCC_3V3_1V9 (3.3
V or 1.9 V)
•
Another power source for audio codec, octal
flash memory, and external flash connector
•
Produces MCU_VCC_3V3_1V9 supply
•
Supplies power to onboard DMIC, external
DMIC connector, mikroBUS socket connector
J7, Motor 1 + unused MCU pin socket connector
J10, Motor 2 + Arduino socket connectors J92
and J102, SPI NOR flash memory (DNP), SW1,
SW2, and SW3 buttons, the target MCU D5
LED, debug interface four pole double throw
(4PDT) switch (U18), debug trace connector
(J38), 6-axis motion tracking device (U34),
I2C repeater / voltage translator (U27), voltage
translators (U11, U22, U24, U25, and U26), and
current measurement circuit
•
Produces VCC_IF_LINK supply, which provides
power to MCU-Link, debug trace connector
(J38), voltage translators (U17, U19, U20, U21),
buffer (U33), and current measurement circuit
From VCC_3V3_1V9
supply through jumper
JP33
MCU_VCC_3V3_1V9
(3.3 V or 1.9 V)
•
Produces MCU_VDD, MCU_VDDA,
MCU_VBAT, and MCU_MAIN supplies
•
Supplies power to current measurement circuit
From
MCU_VCC_3V3_1V9
supply through jumper
JP20
MCU_VDD (3.3 V or
1.9 V)
•
Provides VDDIO power to the target MCU
•
Supplies power to boot configuration jumper
(J43)
From
MCU_VCC_3V3_1V9
supply through jumper
JP21
MCU_VDDA (3.3 V
or 1.9 V)
Produces MCU_VDDA_F supply, which supplies
power to the target MCU and operational
amplifiers (op-amps)
From
MCU_VCC_3V3_1V9
supply through jumper
JP22
MCU_VBAT (3.3 V
or 1.9 V)
Provides VBAT power to the target MCU
From
MCU_VCC_3V3_1V9
supply through jumper
JP28
MCU_MAIN (3.3 V
or 1.9 V)
Provides VDD_MAIN power to the target MCU
Table 9. LPCXpresso55S36 power supplies
...continued
The LPCXpresso55S36 board supports current measurement for board power supplies
through the onboard MCU-Link debug probe. For more details, see
.
2.2 Clocks
The table below describes the clocks available on the LPCXpresso55S36 board.
Clock generator
Clock
Frequency
Destination
Y2: Crystal (CX3225SA16000D0PTW)
XTAL32M_[P,N]
16 MHz
Target MCU (LPC5536)
Y3: Crystal (FC-135 32.7680KA-AG3)
XTAL32K_[P,N]
32.768 kHz
Target MCU
Y1: Crystal (CX3225GA16000D0PTVCC)
MCU_LINK_[P,N]_16MHz 16 MHz
MCU-Link (LPC55S69)
Table 10. LPCXpresso55S36 clocks
LPCXpresso55S36UM
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© NXP B.V. 2022. All rights reserved.
User manual
Rev. 2 — 5 September 2022
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