Datasheet

LPC540xx All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet Rev. 1.8 — 22 June 2018 13 of 168
NXP Semiconductors
LPC540xx
32-bit ARM Cortex-M4 microcontroller
6.2 Pin description
On the LPC540xx, digital pins are grouped into several ports. Each digital pin can support
several different digital functions (including General Purpose I/O (GPIO)) and an
additional analog function.
Table 4. Pin description
Symbol
100-pin, TFBGA 180-pin, TFBGA 208-pin, LQFP 100-pin, LQFP Reset state
[1]
[9]
Type
Description
PIO0_0 C4 D6 196 93
[2]
PU; Z I/O PIO0_0 — General-purpose digital input/output pin.
Remark: In ISP mode, this pin is set to the Flexcomm 3 SPI
SCK function.
I CAN1_RD — Receiver input for CAN 1.
I/O FC3_SCK — Flexcomm 3: USART or SPI clock.
O CTimer_MAT0 — Match output 0 from Timer 0.
I SCT0_GPI0 — Pin input 0 to SCTimer/PWM.
O PDM0_CLK — Clock for PDM interface 0, for digital
microphone.
PIO0_1 A1 A1 207 100
[2]
PU;
ZPU;
Z
I/O PIO0_1 — General-purpose digital input/output pin.
Remark: In ISP mode, this pin is set to the Flexcomm 3 SPI
SSEL0 function.
O CAN1_TD — Transmitter output for CAN 1.
I/O FC3_CTS_SDA_SSEL0 — Flexcomm 3: USART
clear-to-send, I2C data I/O, SPI Slave Select 0.
I CT0_CAP0 — Capture input 0 to Timer 0.
I SCT0_GPI1 — Pin input 1 to SCTimer/PWM.
I PDM0_DATA — Data for PDM interface 0 (digital
microphone).
PIO0_2/
TRST
A7 E9 174 83
[2]
PU; Z I/O PIO0_2 — General-purpose digital input/output pin. In
boundary scan mode: TRST (Test Reset).
Remark: In ISP mode, this pin is set to the Flexcomm 3 SPI
MISO function.
I/O FC3_TXD_SCL_MISO — Flexcomm 3: USART transmitter,
I2C clock, SPI master-in/slave-out data.
I CT0_CAP1 — Capture input 1 to Timer 0.
O SCT0_OUT0 — SCTimer/PWM output 0.
I SCT0_GPI[2] — Pin input 2 to SCTimer/PWM.
I/O EMC_D[0] — External Memory interface data [0].