Datasheet

LPC435X_3X_2X_1X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 4 — 19 August 2014 59 of 158
NXP Semiconductors
LPC435x/3x/2x/1x
32-bit ARM Cortex-M4/M0 microcontroller
XTAL2 E1 C1 19 13
[8]
- O Output from the oscillator amplifier.
Power and ground pins
USB0_VDDA
3V3_DRIVER
F3 D1 24 16 - - Separate analog 3.3 V power supply for driver.
USB0
_VDDA3V3
G3 D2 25 17 - - USB 3.3 V separate power supply voltage.
USB0_VSSA
_TERM
H3 D3 27 19 - - Dedicated analog ground for clean reference for termination
resistors.
USB0_VSSA
_REF
G1 F2 31 23 - - Dedicated clean analog ground for generation of reference
currents and voltages.
VDDA B4 B2 198 137 - - Analog power supply and ADC reference voltage.
VBAT B10 C5 184 127 - - RTC power supply: 3.3 V on this pin supplies power to the
RTC.
VDDREG F10,
F9,
L8,
L7
E4,
E5,
F4
135,
188,
195,
82,
33
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
F10,
K5
6,
52,
57,
102,
110,
155,
160,
202
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.
Table 3. Pin description …continued
Pin name
LBGA256 TFBGA100 LQFP208 LQFP144 Reset state [1] Type
Description