LPC540xx
NXP Semiconductors
32-bit ARM Cortex-M4 microcontroller
Table 4.
Symbol
Pin description …continued
Description
[2]
[2]
[2]
[2]
PIO5_7
PIO5_8
PIO5_9
PIO5_10
-
-
-
-
-
-
-
-
171
175
179
168
-
-
-
-
PU; Z I/O PIO5_7 — General-purpose digital input/output pin.
SCT0_GPI2 — Pin input 2 to SCTimer/PWM.
I
I/O MCLK — MCLK input or output for I2S and/or digital
microphone.
I/O FC5_RXD_SDA_MOSI — Flexcomm 5: USART receiver,
I2C data I/O, SPI master-out/slave-in data.
O
O
O
SCT0_OUT6 — SCTimer/PWM output 6.
TRACEDATA[1] — Trace data bit 1.
EMC_A[23] — External memory interface address 23.
PU; Z I/O PIO5_8 — General-purpose digital input/output pin.
I
SCT0_GPI3 — Pin input 3 to SCTimer/PWM.
O
PDM0_CLK — Clock for PDM interface 0, for digital
microphone.
I/O FC5_TXD_SCL_MISO — Flexcomm 5: USART transmitter,
I2C clock, SPI master-in/slave-out data.
O
O
O
SCT0_OUT7 — SCTimer/PWM output 7.
TRACEDATA[2] — Trace data bit 2.
EMC_A[24] — External memory interface address 24.
PU; Z I/O PIO5_9 — General-purpose digital input/output pin.
I
I
SCT0_GPI4 — Pin input 4 to SCTimer/PWM.
PDM0_DATA — Data for PDM interface 0 (digital
microphone).
I/O FC5_CTS_SDA_SSEL0 — Flexcomm 5: USART
clear-to-send, I2C data I/O, SPI Slave Select 0.
O
O
O
SCT0_OUT8 — SCTimer/PWM output 8.
TRACEDATA[3] — Trace data bit 3.
EMC_A[25] — External memory interface address 25.
PU; Z I/O PIO5_10 — General-purpose digital input/output pin.
I
SCT0_GPI5 — Pin input 5 to SCTimer/PWM.
R — Reserved.
I/O FC5_RTS_SCL_SSEL1 — Flexcomm 5: USART
request-to-send, I2C clock, SPI slave select 1.
O
I
SCT0_OUT9 — SCTimer/PWM output 9.
UTICK_CAP3 — Micro-tick timer capture input 3.
USB1 analog 3.3 V ground.
USB1_AVSSC
USB1_REXT
USB1_ID
D1 F2
B1 F1
20
21
6
7
8
USB1 analog signal for reference resistor, 12.4 k +/-1%
C1 G1 22
Indicates to the transceiver whether connected as an
A-device (USB1_ID LOW) or B-device (USB1_ID HIGH).
[6][8]
USB1_VBUS
D3 G2 23
9
I/O VBUS pin (power on USB cable).
LPC540xx
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 1.8 — 22 June 2018
52 of 168
NXP [ NXP ]
