LPC1227FBD64/301,1 Datasheet LPC1225FBD48/321,1, LPC1225FBD48/301,1, LPC1225FBD64/301,1 | P13-P15

Product data sheet Rev. 2 — 26 August 2011 13 of 61

NXP Semiconductors

LPC122x

32-bit ARM Cortex-M0 microcontroller

PIO2_6/

CT32B0_CAP2/

CT32B0_MAT2/DCD0

-35

[2]

[3]

no I/O I; PU PIO2_6 — General purpose digital input/output pin.

I- CT32B0_CAP2 — Capture input, channel 2 for 32-bit timer 0.

O- CT32B0_MAT2 — Match output, channel 2 for 32-bit timer 0.

I- DCD0

— Data Carrier Detect input for UART0.

PIO2_7/

CT32B0_CAP3/

CT32B0_MAT3/DSR0

-36

[2]

[3]

no I/O I; PU PIO2_7 — General purpose digital input/output pin.

I- CT32B0_CAP3 — Capture input, channel 3 for 32-bit timer 0.

O- CT32B0_MAT3 — Match output, channel 3 for 32-bit timer 0.

I- DSR0

— Data Set Ready input for UART0.

PIO2_8/

CT32B1_CAP0/

CT32B1_MAT0

-59

[2]

[3]

no I/O I; PU PIO2_8 — General purpose digital input/output pin.

I- CT32B1_CAP0 — Capture input, channel 0 for 32-bit timer 1.

O- CT32B1_MAT0 — Match output, channel 0 for 32-bit timer 1.

PIO2_9/

CT32B1_CAP1/

CT32B1_MAT1

-60

[2]

[3]

no I/O I; PU PIO2_9 — General purpose digital input/output pin.

I- CT32B1_CAP1 — Capture input, channel 1 for 32-bit timer 1.

O- CT32B1_MAT1 — Match output, channel 1 for 32-bit timer 1.

PIO2_10/

CT32B1_CAP2/

CT32B1_MAT2/TXD1

-61

[2]

[3]

no I/O I; PU PIO2_10 — General purpose digital input/output pin.

I- CT32B1_CAP2 — Capture input, channel 2 for 32-bit timer 1.

O- CT32B1_MAT2 — Match output, channel 2 for 32-bit timer 1.

O- TXD1 — Transmitter output for UART1.

PIO2_11/

CT32B1_CAP3/

CT32B1_MAT3/RXD1

-62

[2]

[3]

no I/O I; PU PIO2_11 — General purpose digital input/output pin.

I- CT32B1_CAP3 — Capture input, channel 3 for 32-bit timer 1.

O- CT32B1_MAT3 — Match output, channel 3 for 32-bit timer 1.

I- RXD1 — Receiver input for UART1.

PIO2_12/RXD1 - 13

[2]

[3]

no I/O I; PU PIO2_12 — General purpose digital input/output pin.

I- RXD1 — Receiver input for UART1.

PIO2_13/TXD1 - 14

[2]

[3]

no I/O I; PU PIO2_13 — General purpose digital input/output pin.

O- TXD1 — Transmitter output for UART1.

PIO2_14 - 15

[2]

[3]

no I/O I; PU PIO2_14 — General purpose digital input/output pin.

PIO2_15 - 16

[2]

[3]

no I/O I; PU PIO2_15 — General purpose digital input/output pin.

RTCXIN 46 58

[10]

- I - Input to the 32 kHz oscillator circuit.

RTCXOUT 45 57

[10]

- O - Output from the 32 kHz oscillator amplifier.

XTALIN 1 1 - I - Input to the system oscillator circuit and internal clock

generator circuits.

XTALOUT 2 2 - O - Output from the system oscillator amplifier.

VREF_CMP 3 3 - I - Reference voltage for comparator.

Table 3. LPC122x pin description

…continued

Symbol

Pin LQFP48

Pin LQFP64

Start

logic

input

Type Reset

state

[1]

Description

Product data sheet Rev. 2 — 26 August 2011 14 of 61

NXP Semiconductors

LPC122x

32-bit ARM Cortex-M0 microcontroller

[1] Pin state at reset for default function: I = Input; O = Output; PU = internal pull-up enabled; IA = inactive, no pull-up/down enabled.

[2] 3.3 V tolerant, digital I/O pin; default: pull-up enabled, no hysteresis.

[3] If set to output, this normal-drive pin is in low mode by default.

[4] I

C-bus pins; 5 V tolerant; open-drain; default: no pull-up/pull-down; no hysteresis.

[5] 3.3 V tolerant, digital I/O pin with RESET

function; default: pull-up enabled, no hysteresis. An external pull-up resistor is required on this

pin for the Deep power-down mode.

[6] 3.3 V tolerant, digital I/O pin with analog function; default: pull-up enabled, no hysteresis.

[7] If set to output, this normal-drive pin is in high mode by default.

[8] 3.3 V tolerant, digital I/O pin with analog function and WAKEUP function; default: pull-up enabled, no hysteresis.

[9] 3.3 V tolerant, high-drive digital I/O pin; default: pull-up enabled, no hysteresis.

[10] If the RTC is not used, RTCXIN and RTCXOUT can be left floating.

To enable a peripheral function, find the corresponding port pin, or select a port pin if the

function is multiplexed, and program the port pin’s IOCONFIG register to enable that

function. The primary SWD functions and RESET

are the default functions on their pins

after reset.

DD(IO)

47 63 - I - Input/output supply voltage.

DD(3V3)

44 56 - I - 3.3 V supply voltage to the internal regulator and the ADC. Also

used as the ADC reference voltage.

SSIO

48 64 - I - Ground.

43 55 - I - Ground.

Table 3. LPC122x pin description

…continued

Symbol

Pin LQFP48

Pin LQFP64

Start

logic

input

Type Reset

state

[1]

Description

Table 4. Pin multiplexing

Peripheral Function Type Available on ports:

Analog comparators ROSC I/O PIO0_29 - -

ACMP0_I0 I PIO0_19 - -

ACMP0_I1 I PIO0_20 - -

ACMP0_I2 I PIO0_21 - -

ACMP0_I3 I PIO0_22 - -

ACMP0_O O PIO0_27 - -

ACMP1_I0 I PIO0_23 - -

ACMP1_I1 I PIO0_24 - -

ACMP1_I2 I PIO0_25 - -

ACMP1_I3 I PIO0_26 - -

ACMP1_O O PIO0_28 - -

Product data sheet Rev. 2 — 26 August 2011 15 of 61

NXP Semiconductors

LPC122x

32-bit ARM Cortex-M0 microcontroller

ADC AD0 I PIO0_30 - -

AD1 I PIO0_31 - -

AD2 I PIO1_0 - -

AD3 I PIO1_1 - -

AD4 I PIO1_2 - -

AD5 I PIO1_3 - -

AD6 I PIO1_4 - -

AD7 I PIO1_5 - -

CT16B0 CT16B0_CAP0 I PIO0_11 PIO0_28 PIO2_0

CT16B0_CAP1 I PIO0_12 PIO0_29 PIO2_1

CT16B0_MAT0 O PIO0_11 PIO0_28 PIO2_0

CT16B0_MAT1 O PIO0_12 PIO0_29 PIO2_1

CT16B1 CT16B1_CAP0 I PIO0_15 PIO1_5 PIO2_2

CT16B1_CAP1 I PIO0_16 PIO1_6 PIO2_3

CT16B1_MAT0 O PIO0_15 PIO1_5 PIO2_2

CT16B1_MAT1 O PIO0_16 PIO1_6 PIO2_3

CT32B0 CT32B0_CAP0 I PIO0_1 PIO0_18 PIO2_4

CT32B0_CAP1 I PIO0_2 PIO0_19 PIO2_5

CT32B0_CAP2 I PIO0_3 PIO0_20 PIO2_6

CT32B0_CAP3 I PIO0_4 PIO0_21 PIO2_7

CT32B0_MAT0 O PIO0_1 PIO0_18 PIO2_4

CT32B0_MAT1 O PIO0_2 PIO0_19 PIO2_5

CT32B0_MAT2 O PIO0_3 PIO0_20 PIO2_6

CT32B0_MAT3 O PIO0_4 PIO0_21 PIO2_7

CT32B1 CT32B1_CAP0 I PIO0_6 PIO0_23 PIO2_8

CT32B1_CAP1 I PIO0_7 PIO0_24 PIO2_9

CT32B1_CAP2 I PIO0_8 PIO0_25 PIO2_10

CT32B1_CAP3 I PIO0_9 PIO0_26 PIO2_11

CT32B1_MAT0 O PIO0_6 PIO0_23 PIO2_8

CT32B1_MAT1 O PIO0_7 PIO0_24 PIO2_9

CT32B1_MAT2 O PIO0_8 PIO0_25 PIO2_10

CT32B1_MAT3 O PIO0_9 PIO0_26 PIO2_11

UART0 RXD0 I PIO0_1 PIO2_1 -

TXD0 O PIO0_2 PIO2_2 -

CTS0

I PIO0_7 PIO2_4 -

DCD0

I PIO0_5 PIO2_6 -

DSR0

I PIO0_4 PIO2_7 -

DTR0

O PIO0_3 PIO2_3 -

RI0

I PIO0_6 PIO2_5 -

RTS0

O PIO0_0 PIO2_0 -

Table 4. Pin multiplexing

Peripheral Function Type Available on ports:

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39 P40-P42 P43-P45 P46-P48 P49-P51 P52-P54 P55-P57 P58-P60 P61-P61

LPC1227FBD64/301,1

Mfr. #:

Buy LPC1227FBD64/301,1

Manufacturer:

NXP Semiconductors

Description:

ARM Microcontrollers - MCU CORTEX M0 128K FL 8K DMA CRC ADC COMPARTR

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LPC1227FBD64/301,1

LPC1227FBD64/301,1

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