LPC5411x
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 2.1 — 9 May 2018
20 of 105
NXP Semiconductors
LPC5411x
32-bit ARM Cortex-M4/M0+ microcontroller
[1]
PU = input mode, pull-up enabled (pull-up resistor pulls up pin to V
DD
). Z = high impedance; pull-up or pull-down disabled, AI = analog
input, I = input, O = output, F = floating. Reset state reflects the pin state at reset without boot code operation. For pin states in the
different power modes, see
Section 6.2.2 “Pin states in different power modes”
. For termination on unused pins, see
.
[2]
5 V tolerant pad with programmable glitch filter (5 V tolerant if V
DD
present; if V
DD
not present, do not exceed 3.6 V); provides digital I/O
functions with TTL levels and hysteresis; normal drive strength. See
. Pulse width of spikes or glitches suppressed by input
filter is from 3 ns to 16 ns (simulated value).
[3]
True open-drain pin. I2C-bus pins compliant with the I2C-bus specification for I2C standard mode, I2C Fast-mode, and I2C Fast-mode
Plus. The pin requires an external pull-up to provide output functionality. When power is switched off, this pin is floating and does not
disturb the I2C lines. Open-drain configuration applies to all functions on this pin.
[4]
5 V tolerant pin providing standard digital I/O functions with configurable modes, configurable hysteresis, and analog input. When
configured as an analog input, the digital section of the pin is disabled, and the pin is not 5 V tolerant.
[5]
Reset pad.5 V tolerant pad with glitch filter with hysteresis. Pulse width of spikes or glitches suppressed by input filter is from 3 ns to
20 ns (simulated value)
[6]
5 V tolerant transparent analog pad.
VREFN
-
21
-
-
ADC negative reference voltage.
V
DDA
A4
23
-
-
Analog supply voltage.
V
DD
C4,
F4
8,
24,
34,
56
-
-
Single 1.62 V to 3.6 V power supply powers internal digital functions and I/Os.
V
SS
D4,
E4
9,
25,
55
-
-
Ground.
V
SSA
A3
20
-
-
Analog ground.
Table 4.
Pin description
…continued
Symbol
49-p
in
64-p
in
R
e
se
t st
ate
[1
]
Ty
p
e
Description