LPC178X datasheet(28/120 Pages) NXP

28 / 120 page

LPC178X_7X

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Preliminary data sheet

Rev. 4 — 1 May 2012

28 of 120

NXP Semiconductors

LPC178x/7x

32-bit ARM Cortex-M3 microcontroller

P3[17]

143

F15

[3]

I/O

P3[17] — General purpose digital input/output pin.

I/O

EMC_D[17] — External memory data line 17.

PWM0[2] — Pulse Width Modulator 0, output 2.

U1_RXD — Receiver input for UART1.

P3[18]

151

C15

[3]

I/O

P3[18] — General purpose digital input/output pin.

I/O

EMC_D[18] — External memory data line 18.

PWM0[3] — Pulse Width Modulator 0, output 3.

U1_CTS — Clear to Send input for UART1.

P3[19]

161

B14

[3]

I/O

P3[19] — General purpose digital input/output pin.

I/O

EMC_D[19] — External memory data line 19.

PWM0[4] — Pulse Width Modulator 0, output 4.

U1_DCD — Data Carrier Detect input for UART1.

P3[20]

167

A13

[3]

I/O

P3[20] — General purpose digital input/output pin.

I/O

EMC_D[20] — External memory data line 20.

PWM0[5] — Pulse Width Modulator 0, output 5.

U1_DSR — Data Set Ready input for UART1.

P3[21]

175

C10

[3]

I/O

P3[21] — General purpose digital input/output pin.

I/O

EMC_D[21] — External memory data line 21.

PWM0[6] — Pulse Width Modulator 0, output 6.

U1_DTR — Data Terminal Ready output for UART1. Can also

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

UART1.

P3[22]

195

[3]

I/O

P3[22] — General purpose digital input/output pin.

I/O

EMC_D[22] — External memory data line 22.

PWM0_CAP0 — Capture input for PWM0, channel 0.

U1_RI — Ring Indicator input for UART1.

P3[23]

[3]

I/O

P3[23] — General purpose digital input/output pin.

I/O

EMC_D[23] — External memory data line 23.

PWM1_CAP0 — Capture input for PWM1, channel 0.

T0_CAP0 — Capture input for Timer 0, channel 0.

P3[24]

[3]

I/O

P3[24] — General purpose digital input/output pin.

I/O

EMC_D[24] — External memory data line 24.

PWM1[1] — Pulse Width Modulator 1, output 1.

T0_CAP1 — Capture input for Timer 0, channel 1.

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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