NXP Semiconductors LPC11U3x User Manual

UM10462 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2016. All rights reserved.
User manual Rev. 5.5 — 21 December 2016 146 of 523
NXP Semiconductors
UM10462
Chapter 8: LPC11U3x/2x/1x Pin configuration
PIO0_3/USB_VBUS/
IOH_1
9H21419
[3]
I; PU I/O PIO0_3 — General purpose digital input/output pin. A
LOW level on this pin during reset starts the ISP
command handler. A HIGH level during reset starts
the USB device enumeration.
-IUSB_VBUS — Monitors the presence of USB bus
power.
- I/O IOH_1 — I/O Handler input/output 1.
LPC11U37HFBD64/401 only.
PIO0_4/SCL/IOH_2 10 G3 15 20
[4]
I; IA I/O PIO0_4 — General purpose digital input/output pin
(open-drain).
- I/O SCL — I
2
C-bus clock input/output (open-drain).
High-current sink only if I
2
C Fast-mode Plus is
selected in the I/O configuration register.
- I/O IOH_2 — I/O Handler input/output 2.
LPC11U37HFBD64/401 only.
PIO0_5/SDA/IOH_3 11 H3 16 21
[4]
I; IA I/O PIO0_5 — General purpose digital input/output pin
(open-drain).
- I/O SDA — I
2
C-bus data input/output (open-drain).
High-current sink only if I
2
C Fast-mode Plus is
selected in the I/O configuration register.
- I/O IOH_3 — I/O Handler input/output 3.
LPC11U37HFBD64/401 only.
PIO0_6/USB_CONNECT
/
SCK0/IOH_4
15 H6 22 29
[3]
I; PU I/O PIO0_6 — General purpose digital input/output pin.
-OUSB_CONNECT
— Signal used to switch an external
1.5 k resistor under software control. Used with the
SoftConnect USB feature.
- I/O SCK0 — Serial clock for SSP0.
- I/O IOH_4 — I/O Handler input/output 4.
LPC11U37HFBD64/401 only.
PIO0_7/CTS
/IOH_5 16 G7 23 30
[5]
I; PU I/O PIO0_7 — General purpose digital input/output pin
(high-current output driver).
-ICTS
— Clear To Send input for USART.
- I/O IOH_5 — I/O Handler input/output 5.
(LPC11U37HFBD64/401 only.)
PIO0_8/MISO0/
CT16B0_MAT0/R/IOH_6
17 F8 27 36
[3]
I; PU I/O PIO0_8 — General purpose digital input/output pin.
- I/O MISO0 — Master In Slave Out for SSP0.
-OCT16B0_MAT0 — Match output 0 for 16-bit timer 0.
- - Reserved.
- I/O IOH_6 — I/O Handler input/output 6.
(LPC11U37HFBD64/401 only.)
Table 135. LPC11U3x pin description
…continued
Symbol
Pin HVQFN33 Pin TFBGA48 Pin LQFP48 Pin LQFP64
Reset
state
[1]
Type Description

NXP Semiconductors LPC11U3x Specifications

General

Brand	NXP Semiconductors
Model	LPC11U3x
Category	Microcontrollers
Language	English