LPC2212 datasheet(11/45 Pages) PHILIPS

11 / 45 page

LPC2212_2214_4

Product data sheet

Rev. 04 — 3 January 2008

11 of 45

NXP Semiconductors

LPC2212/2214

16/32-bit ARM microcontrollers

[1]

SSP interface is available on LPC2212/01 and LPC2214/01 only.

VSS

3, 9, 26,

38, 54, 67,

79, 93,

103, 107,

111, 128

ground: 0 V reference

VSSA

139

analog ground; 0 V reference. This should nominally be the same voltage as

VSS, but should be isolated to minimize noise and error.

VSSA(PLL)

138

PLL analog ground; 0 V reference. This should nominally be the same voltage

as VSS, but should be isolated to minimize noise and error.

VDD(1V8)

37, 110

1.8 V core power supply; this is the power supply voltage for internal circuitry.

VDDA(1V8)

143

analog 1.8 V core power supply; this is the power supply voltage for internal

circuitry. This should be nominally the same voltage as VDD(1V8) but should be

isolated to minimize noise and error.

VDD(3V3)

2, 31, 39,

51, 57, 77,

94, 104,

112, 119

3.3 V pad power supply; this is the power supply voltage for the I/O ports

VDDA(3V3)

analog 3.3 V pad power supply; this should be nominally the same voltage as

VDD(3V3) but should be isolated to minimize noise and error

Table 3.

Pin description …continued

Symbol

Type Description

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