Datasheet

LPC1850_30_20_10 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 6.4 — 18 August 2014 58 of 150
NXP Semiconductors
LPC1850/30/20/10
32-bit ARM Cortex-M3 microcontroller
Power and ground pins
USB0_VDDA
3V3_DRIVER
F3 E3 D1 16 - - Separate analog 3.3 V power supply for driver.
USB0
_VDDA3V3
G3 F3 D2 17 - - USB 3.3 V separate power supply voltage.
USB0_VSSA
_TERM
H3 G3 D3 19 - - Dedicated analog ground for clean reference for termination
resistors.
USB0_VSSA
_REF
G1 F1 F2 23 - - Dedicated clean analog ground for generation of reference
currents and voltages.
VDDA B4 A6 B2 137 - - Analog power supply and ADC reference voltage.
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 - - -
[12]
- - 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
[12]
- - 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.
VSS G9,
H7,
J10,
J11,
K8
F10,
D7,
E6,
E7,
E9,
K6,
K9
C8,
D4,
D5,
G8,
J3,
J6
-
[13]
- - Ground.
Table 3. Pin description
…continued
LCD, Ethernet, USB0, and USB1 functions are not available on all parts. See Table 2.
Symbol
LBGA256 TFBGA180 TFBGA100 LQFP144 Reset state [1] Type
Description