UM10503
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© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
299 of 1441
NXP Semiconductors
UM10503
Chapter 16: LPC43xx/LPC43Sxx Pin configuration
VBAT
B10
B9
C5
127
-
-
RTC power supply: 3.3 V on this pin supplies power to the
RTC.
VDDREG
F10,
F9,
L8,
L7
D8,
E8
E4,
E5,
F4
94,
131,
59,
25
-
Main regulator power supply. Tie the VDDREG and VDDIO
pins to a common power supply to ensure the same ramp-up
time for both supply voltages.
VPP
E8
-
-
-
-
-
OTP programming voltage.
VDDIO
D7,
E12,
F7,
F8,
G10,
H10,
J6,
J7,
K7,
L9,
L10,
N7,
N13
H5,
H10,
K8,
G10
F10,
K5
5,
36,
41,
71,
77,
107,
111,
141
-
-
I/O power supply. Tie the VDDREG and VDDIO pins to a
common power supply to ensure the same ramp-up time for
both supply voltages.
VDD
-
-
-
-
Power supply for main regulator, I/O, and OTP.
VSS
G9,
H7,
J10,
J11,
K8
F10,
D7,
E6,
E7,
E9,
K6,
K9
-
-
-
-
Ground.
VSSIO
C4,
D13,
G6,
G7,
G8,
H8,
H9,
J8,
J9,
K9,
K10,
M13,
P7,
P13
-
C8,
D4,
D5,
G8,
J3,
J6
4,
40,
76,
109
-
-
Ground.
VSSA
B2
A3
C2
135
-
-
Analog ground.
Not connected
-
B9
B8
-
-
-
-
n.c.
Table 185. LPC4350/30/20/10 and LPC43S50/S30/S20 pin descriptions
…continued
LCD, Ethernet, USB0, and USB1 functions are not available on all parts.
Symbol
LB
GA25
6
TFBGA180
TFBGA100
LQ
FP1
44
R
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se
t st
ate
[1
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Ty
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Description