Datasheet
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LPC408X_7X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 3.1 — 1 September 2014 49 of 138
NXP Semiconductors
LPC408x/7x
32-bit ARM Cortex-M4 microcontroller
RTCX2 36L2 J3 2518 15 G2
[14]
[15]
O Output from the RTC 32 kHz ultra-low power oscillator
circuit.
USB_D2 52U1 N237- - -
[9]
I/O USB port 2 bidirectional D line.
VBAT 38 M3 K1 27 19 16 H1 I RTC power supply: 3.3 V on this pin supplies power to the
RTC.
V
DD(REG)(3V3)
26,
86,
174
H4,
P11,
D11
G1,
N9, E9
18,
60,
121
13, 42,
84
34, 67 K7, C7 S 3.3 V regulator supply voltage: This is the power supply for
the on-chip voltage regulator that supplies internal logic.
V
DDA
20 G4 F2 14 10 8 E3 S Analog 3.3 V pad supply voltage: This can be connected to
the same supply as V
DD(3V3)
but should be isolated to
minimize noise and error. This voltage is used to power the
ADC and DAC. Tie this pin to 3.3 V if the ADC and DAC
are not used.
V
DD(3V3)
15,
60,
71,
89,
112,
125,
146,
165,
181,
198
G3,
P6,
P8,
U13,
P17,
K16,
C17,
B13,
C9, D7
E2,
L4,
K8,
L11,
J14,
E12,
E10,
C5
41,
62,
77,
102,
114,
138
28, 54,
71, 96
21, 42,
56, 77
K2,
H7,
D8,
C4
S 3.3 V supply voltage: This is the power supply voltage for
I/O other than pins in the VBAT domain.
VREFP 24 K1 G2 17 12 10 E1 S ADC positive reference voltage: This should be the same
voltage as V
DDA
, but should be isolated to minimize noise
and error. The voltage level on this pin is used as a
reference for ADC and DAC. Tie this pin to 3.3 V if the
ADC and DAC are not used.
Table 3. Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, comparator pins) and Table 5 (EMC pins).
Symbol
Pin LQFP208
Ball TFBGA208
Ball TFBGA180
Pin LQFP144
Pin LQFP100
Pin LQFP80
Pin TFBGA80
Reset state
[1]
Type
[2]
Description