Datasheet

LPC178X_7X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 5 — 9 September 2014 29 of 122
NXP Semiconductors
LPC178x/7x
32-bit ARM Cortex-M3 microcontroller
P3[25] 56 U2 M3 39
[3]
I;
PU
I/O P3[25] — General purpose digital input/output pin.
I/O EMC_D[25] — External memory data line 25.
O PWM1[2] — Pulse Width Modulator 1, output 2.
O T0_MAT0 — Match output for Timer 0, channel 0.
P3[26] 55 T3 K7 38
[3]
I;
PU
I/O P3[26] — General purpose digital input/output pin.
I/O EMC_D[26] — External memory data line 26.
O PWM1[3] — Pulse Width Modulator 1, output 3.
O T0_MAT1 — Match output for Timer 0, channel 1.
I STCLK — System tick timer clock input. The maximum STCLK
frequency is 1/4 of the ARM processor clock frequency CCLK.
P3[27] 203 A1 - -
[3]
I;
PU
I/O P3[27] — General purpose digital input/output pin.
I/O EMC_D[27] — External memory data line 27.
O PWM1[4] — Pulse Width Modulator 1, output 4.
I T1_CAP0 — Capture input for Timer 1, channel 0.
P3[28] 5 D2 - -
[3]
I;
PU
I/O P3[28] — General purpose digital input/output pin.
I/O EMC_D[28] — External memory data line 28.
O PWM1[5] — Pulse Width Modulator 1, output 5.
I T1_CAP1 — Capture input for Timer 1, channel 1.
P3[29] 11 F3 - -
[3]
I;
PU
I/O P3[29] — General purpose digital input/output pin.
I/O EMC_D[29] — External memory data line 29.
O PWM1[6] — Pulse Width Modulator 1, output 6.
O T1_MAT0 — Match output for Timer 1, channel 0.
P3[30] 19 H3 - -
[3]
I;
PU
I/O P3[30] — General purpose digital input/output pin.
I/O EMC_D[30] — External memory data line 30.
O U1_RTS — Request to Send output for UART1. Can also be
configured to be an RS-485/EIA-485 output enable signal for
UART1.
O T1_MAT1 — Match output for Timer 1, channel 1.
P3[31] 25 J3 - -
[3]
I;
PU
I/O P3[31] — General purpose digital input/output pin.
I/O EMC_D[31] — External memory data line 31.
- R — Function reserved.
O T1_MAT2 — Match output for Timer 1, channel 2.
P4[0] to
P4[31]
I/O Port 4: Port 4 is a 32-bit I/O port with individual direction
controls for each bit. The operation of port 4 pins depends upon
the pin function selected via the pin connect block.
P4[0] 75 U9 L6 52
[3]
I;
PU
I/O P4[0] — General purpose digital input/output pin.
I/O EMC_A[0] — External memory address line 0.
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
Pin LQFP208 Ball TFBGA208 Ball TFBGA180 Pin LQFP144 Reset state
[1]
Type
[2]
Description