LPC1225FBD48301 datasheet(11/60 Pages) NXP

Part #	LPC1225FBD48301

Description	32-bit ARM Cortex-M0 microcontroller; up to 128 kB flash and 8 kB SRAM

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Manufacturer	NXP [NXP Semiconductors]

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LPC122X

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

Objective data sheet

Rev. 1.1 — 21 February 2011

11 of 60

NXP Semiconductors

LPC122x

32-bit ARM Cortex-M0 microcontroller

PIO0_27/ACMP0_O

12 12

[7]

no

I/O

I; PU

PIO0_27 — General purpose digital input/output pin

(high-current output driver).

O-

ACMP0_O — Output for comparator 0.

PIO0_28/ACMP1_O/

CT16B0_CAP0/

CT16B0_MAT0

13 17

[7]

no

I/O

I; PU

PIO0_28 — General purpose digital input/output pin

(high-current output driver).

O-

ACMP1_O — Output for comparator 1.

I-

CT16B0_CAP0 — Capture input, channel 0 for 16-bit timer 0.

O-

CT16B0_MAT0 — Match output, channel 0 for 16-bit timer 0.

PIO0_29/ROSC/

CT16B0_CAP1/

CT16B0_MAT1

14 18

[7]

no

I/O

I; PU

PIO0_29 — General purpose digital input/output pin

(high-current output driver).

I/O

-

ROSC — Relaxation oscillator for 555 timer applications.

I-

CT16B0_CAP1 — Capture input, channel 1 for 16-bit timer 0.

O-

CT16B0_MAT1 — Match output, channel 1 for 16-bit timer 0.

R/PIO0_30/AD0

34 46

[5]

no

I

I; PU

R — Reserved. Configure for an alternate function in the

IOCONFIG block.

I/O

-

PIO0_30 — General purpose digital input/output pin.

I-

AD0 — A/D converter, input 0.

R/PIO0_31/AD1

35 47

[5]

no

I

I; PU

R — Reserved. Configure for an alternate function in the

IOCONFIG block.

I/O

-

PIO0_31 — General purpose digital input/output pin.

I-

AD1 — A/D converter, input 1.

PIO1_0 to PIO1_6

I/O

Port 1 — Port 1 is a 32-bit I/O port with individual direction and

function controls for each bit. The operation of port 1 pins

depends on the function selected through the IOCONFIG

register block. Pins PIO1_7 through PIO1_31 are not available.

R/PIO1_0/AD2

36 48

[5]

no

O

I; PU

R — Reserved. Configure for an alternate function in the

IOCONFIG block.

I/O

-

PIO1_0 — General purpose digital input/output pin.

I-

AD2 — A/D converter, input 2.

R/PIO1_1/AD3

37 49

[5]

no

I

I; PU

R — Reserved. Configure for an alternate function in the

IOCONFIG block.

I/O

-

PIO1_1 — General purpose digital input/output pin.

I-

AD3 — A/D converter, input 3.

PIO1_2/SWDIO/AD4

38 50

[5]

no

I/O

I; PU

PIO1_2 — General purpose digital input/output pin.

I/O

-

SWDIO — Serial wire debug input/output, alternate location.

I-

AD4 — A/D converter, input 4.

PIO1_3/AD5/WAKEUP

39 51

[6]

no

I/O

I; PU

PIO1_3 — General purpose digital input/output pin.

I-

AD5 — A/D converter, input 5.

I-

WAKEUP — Deep power-down mode wake-up pin.

PIO1_4/AD6

40 52

[5]

no

I/O

I; PU

PIO1_4 — General purpose digital input/output pin.

I-

AD6 — A/D converter, input 6.

Table 3.

LPC122x pin description …continued

Symbol

Start

logic

input

Type Reset

state

[1]

Description

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