LPC3240 datasheet(16/80 Pages) NXP

16 / 80 page

LPC3220_30_40_50

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Product data sheet

Rev. 2.1 — 24 June 2014

16 of 80

NXP Semiconductors

LPC3220/30/40/50

16/32-bit ARM microcontrollers

GPO_22/

U7_HRTS/

LCDVD[14]

E10

VDD_IOD

General purpose output 22

HS UART 7 RTS out

LCD data bit 14 (LPC3230 and LPC3250 only)

GPO_23/

U2_HRTS/

U3_RTS

M16

VDD_IOA

General purpose output 23

OHS UART 2 RTS out

UART 3 RTS out

HIGHCORE/

LCDVD[17]

H16

VDD_IOD

Core voltage control out

LCD data bit 17 (LPC3230 and LPC3250 only)

I2C1_SCL

VDD_IOB

I/O T

I2C1 serial clock input/output

I2C1_SDA

VDD_IOB

I/O T

I2C1 serial data input/output

I2C2_SCL

VDD_IOC

I/O T

I2C2 serial clock input/output

I2C2_SDA

VDD_IOC

I/O T

I2C2 serial data input/output

I2S1TX_CLK/

MAT3[0]

VDD_IOB

I/O

I2S1 transmit clock

Timer 3 match output 0

I2S1TX_SDA/

MAT3[1]

VDD_IOB

I/O

I2S1 transmit data

Timer 3 match output 1

I2S1TX_WS/

CAP3[0]

VDD_IOB

I/O

I2S1 transmit word select

I/O

Timer 3 capture input 0

JTAG_NTRST

H17

VDD_IOD

I: PU

JTAG1 reset input. Must be LOW during power-on

reset. See Section 12.1 “Connecting the

JTAG_NTRST pin”.

JTAG_RTCK

H18

VDD_IOD

JTAG1 return clock out

JTAG_TCK

H14

VDD_IOD

JTAG1 clock input

JTAG_TDI

J16

VDD_IOD

I: PU

JTAG1 data input

JTAG_TDO

J15

VDD_IOD

JTAG1 data out

JTAG_TMS

G18

VDD_IOD

I: PU

TAG1 test mode select input

KEY_COL0/

ENET_TX_CLK

F15

VDD_IOD

Keyscan column 0 input

Ethernet transmit clock (LPC3240 and LPC3250

only)

KEY_COL1/

ENET_RX_CLK/

ENET_REF_CLK

E16

VDD_IOD

Keyscan column 1 input

Ethernet receive clock (MII mode, LPC3240 and

LPC3250 only)

Ethernet reference clock (RMII mode, LPC3240 and

LPC3250 only)

KEY_COL2/

ENET_RX_ER

D17

VDD_IOD

Keyscan column 2 input

Ethernet receive error input (LPC3240 and

LPC3250 only)

KEY_COL3/

ENET_CRS

D18

VDD_IOD

Keyscan column 3 input

Ethernet carrier sense input (LPC3240 and

LPC3250 only)

Table 4.

Pin description …continued

Symbol

Power supply

domain

Type

Description

LPC3240 Datasheet(PDF) 16 Page - NXP Semiconductors

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