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 31 of 122
NXP Semiconductors
LPC178x/7x
32-bit ARM Cortex-M3 microcontroller
P4[19] 111 P16 M14 -
[3]
I;
PU
I/O P4[19] — General purpose digital input/output pin.
I/O EMC_A[19] — External memory address line 19.
P4[20] 109 R17 - -
[3]
I;
PU
I/O P4[20] — General purpose digital input/output pin.
I/O EMC_A[20] — External memory address line 20.
I/O I2C2_SDA — I
2
C2 data input/output (this pin does not use a
specialized I2C pad).
I/O SSP1_SCK — Serial Clock for SSP1.
P4[21] 115 M15 - -
[3]
I;
PU
I/O P4[21] — General purpose digital input/output pin.
I/O EMC_A[21] — External memory address line 21.
I/O I2C2_SCL — I
2
C2 clock input/output (this pin does not use a
specialized I2C pad).
I/O SSP1_SSEL — Slave Select for SSP1.
P4[22] 123 K14 - -
[3]
I;
PU
I/O P4[22] — General purpose digital input/output pin.
I/O EMC_A[22] — External memory address line 22.
O U2_TXD — Transmitter output for UART2.
I/O SSP1_MISO — Master In Slave Out for SSP1.
P4[23] 129 J15 - -
[3]
I;
PU
I/O P4[23] — General purpose digital input/output pin.
I/O EMC_A[23] — External memory address line 23.
I U2_RXD — Receiver input for UART2.
I/O SSP1_MOSI — Master Out Slave In for SSP1.
P4[24] 183 B8 C8 127
[3]
I;
PU
I/O P4[24] — General purpose digital input/output pin.
O EMC_OE
— LOW active Output Enable signal.
P4[25] 179 B9 D9 124
[3]
I;
PU
I/O P4[25] — General purpose digital input/output pin.
O EMC_WE
— LOW active Write Enable signal.
P4[26] 119 L15 K13 -
[3]
I;
PU
I/O P4[26] — General purpose digital input/output pin.
O EMC_BLS0
— LOW active Byte Lane select signal 0.
P4[27] 139 G15 F14 -
[3]
I;
PU
I/O P4[27] — General purpose digital input/output pin.
O EMC_BLS1
— LOW active Byte Lane select signal 1.
P4[28] 170 C11 D10 118
[3]
I;
PU
I/O P4[28] — General purpose digital input/output pin.
O EMC_BLS2
— LOW active Byte Lane select signal 2.
O U3_TXD — Transmitter output for UART3.
O T2_MAT0 — Match output for Timer 2, channel 0.
- R — Function reserved.
O LCD_VD[6] — LCD data.
O LCD_VD[10] — LCD data.
O LCD_VD[2] — LCD data.
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