LPC1786 datasheet(15/117 Pages) NXP

15 / 117 page

LPC178X_7X

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Objective data sheet

Rev. 2 — 27 May 2011

15 of 117

NXP Semiconductors

LPC178x/7x

32-bit ARM Cortex-M3 microcontroller

P0[22]

116

N17

L14

[6]

I/O

P0[22] — General purpose digital input/output pin.

U1_RTS — Request to Send output for UART1. Can also be

configured to be an RS-485/EIA-485 output enable signal for

UART1.

I/O

SD_DAT[0] — Data line 0 for SD card interface.

U4_TXD — Transmitter output for USART4 (input/output in

smart card mode).

CAN_TD1 — CAN1 transmitter output.

P0[23]

[5]

I/O

P0[23] — General purpose digital input/output pin.

ADC0_IN[0] — A/D converter 0, input 0. When configured as an

ADC input, the digital function of the pin must be disabled.

I/O

I2S_RX_SCK — Receive Clock. It is driven by the master and

received by the slave. Corresponds to the signal SCK in the

I2S-bus specification.

T3_CAP0 — Capture input for Timer 3, channel 0.

P0[24]

[5]

I/O

P0[24] — General purpose digital input/output pin.

ADC0_IN[1] — A/D converter 0, input 1. When configured as an

ADC input, the digital function of the pin must be disabled.

I/O

I2S_RX_WS — Receive Word Select. It is driven by the master

and received by the slave. Corresponds to the signal WS in the

I2S-bus specification.

T3_CAP1 — Capture input for Timer 3, channel 1.

P0[25]

[5]

I/O

P0[25] — General purpose digital input/output pin.

ADC0_IN[2] — A/D converter 0, input 2. When configured as an

ADC input, the digital function of the pin must be disabled.

I/O

I2S_RX_SDA — Receive data. It is driven by the transmitter

and read by the receiver. Corresponds to the signal SD in the

I2S-bus specification.

U3_TXD — Transmitter output for UART3.

P0[26]

[7]

I/O

P0[26] — General purpose digital input/output pin.

ADC0_IN[3] — A/D converter 0, input 3. When configured as an

ADC input, the digital function of the pin must be disabled.

DAC_OUT — D/A converter output. When configured as the

DAC output, the digital function of the pin must be disabled.

U3_RXD — Receiver input for UART3.

P0[27]

[8]

<tb

I/O

P0[27] — General purpose digital input/output pin.

I/O

I2C0_SDA — I2C0 data input/output. (this pin uses a

specialized I2C pad).

I/O

USB_SDA1 — I2C serial data for communication with an

external USB transceiver.

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

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