LPC1776 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

MFG CO.

LPC1776

32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash and 96 kB SRAM; USB Device/Host/OTG; Ethernet; LCD; EMC

NXP Semiconductors. 

Prev 31 32 33 34 35 36 37 38 39 40 Next

NXP Semiconductors

LPC178x/7x

32-bit ARM Cortex-M3 microcontroller

Table 3. Pin description …continued

Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC

pins).

Symbol

Description

VBAT

38 M3 K1 27

-I

RTC power supply: 3.0 V on this pin supplies power to the RTC.

VDD(REG)(3V3)

26, H4, G1, 18,

86, P11, N9, 60,

174 D11 E9 121

- S 3.3 V regulator supply voltage: This is the power supply for the

on-chip voltage regulator that supplies internal logic.

VDDA

20 G4 F2 14

- S Analog 3.3 V pad supply voltage: This can be connected to the

same supply as VDD(3V3) but should be isolated to minimize

noise and error. This voltage is used to power the ADC and

DAC. Note: This pin should be tied to 3.3 V if the ADC and

DAC are not used.

VDD(3V3)

15, G3, E2, 41,

60, P6, L4, 62,

71, P8, K8, 77,

89, U13, L11, 102,

112, P17, J14, 114,

125, K16, E12, 138

146, C17, E10,

165, B13, C5

181, C9,

198 D7

- 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

- S ADC positive reference voltage: This should be the same

voltage as VDDA, but should be isolated to minimize noise and

error. The voltage level on this pin is used as a reference for

ADC and DAC. Note: This pin should be tied to 3.3 V if the

ADC and DAC are not used.

VSS

33, L3, H4, 44,

- G Ground: 0 V reference for digital IO pins.

63, T5, P4, 65,

77, R9, L9, 79,

93, P12, L13, 103,

114, N16, G13, 117,

133, H14, D13, 139

148, E15, C11,

169, A12, B4

189, B6,

200 A2

VSSREG

32, D12, H3, 22,

84, K4, L8, 59,

172 P10 A10 119

- G Ground: 0 V reference for internal logic.

VSSA

XTAL1

22 J2 F3 15

- G Analog ground: 0 V power supply and reference for the ADC

and DAC. This should be the same voltage as VSS, but should

be isolated to minimize noise and error.

44 M4 L2 31 [14] - I

[16]

Input to the oscillator circuit and internal clock generator circuits.

XTAL2

46 N4 K4 33 [14] - O Output from the oscillator amplifier.

[16]

LPC178X_7X

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 5.5 — 26 April 2016

© NXP Semiconductors N.V. 2016. All rights reserved.

34 of 126

Share Link: