LPC1764 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
LPC1764 Datasheet PDF : 66 Pages
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NXP Semiconductors
LPC1769/68/67/66/65/64
32-bit ARM Cortex-M3 microcontroller
Table 3. Pin description …continued
Symbol
Pin
Type Description
P2[13]/EINT3/
50[6]
I/O P2[13] — General purpose digital input/output pin.
I2STX_SDA
I
EINT3 — External interrupt 3 input.
I/O I2STX_SDA — Transmit data. It is driven by the transmitter and read by the
receiver. Corresponds to the signal SD in the I2S-bus specification.
(LPC1769/68/67/66/65 only).
P3[0] to P3[31]
I/O Port 3: Port 3 is a 32-bit I/O port with individual direction controls for each bit. The
operation of port 3 pins depends upon the pin function selected via the pin connect
block. Pins 0 through 24, and 27 through 31 of this port are not available.
P3[25]/MAT0[0]/
PWM1[2]
27[1]
I/O P3[25] — General purpose digital input/output pin.
O
MAT0[0] — Match output for Timer 0, channel 0.
O
PWM1[2] — Pulse Width Modulator 1, output 2.
P3[26]/STCLK/
26[1]
MAT0[1]/PWM1[3]
I/O P3[26] — General purpose digital input/output pin.
I
STCLK — System tick timer clock input.
O
MAT0[1] — Match output for Timer 0, channel 1.
O
PWM1[3] — Pulse Width Modulator 1, output 3.
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. Pins 0 through 27, 30, and 31 of this port are not available.
P4[28]/RX_MCLK/ 82[1]
MAT2[0]/TXD3
I/O P4[28] — General purpose digital input/output pin.
I
RX_MCLK — I2S receive master clock. (LPC1769/68/67/66/65 only).
O
MAT2[0] — Match output for Timer 2, channel 0.
O
TXD3 — Transmitter output for UART3.
P4[29]/TX_MCLK/ 85[1]
MAT2[1]/RXD3
I/O P4[29] — General purpose digital input/output pin.
I
TX_MCLK — I2S transmit master clock. (LPC1769/68/67/66/65 only).
O
MAT2[1] — Match output for Timer 2, channel 1.
I
RXD3 — Receiver input for UART3.
TDO/SWO
1[1]
O
TDO — Test Data out for JTAG interface.
O
SWO — Serial wire trace output.
TDI
2[1]
I
TDI — Test Data in for JTAG interface.
TMS/SWDIO
3[1]
I
TMS — Test Mode Select for JTAG interface.
I/O SWDIO — Serial wire debug data input/output.
TRST
4[1]
I
TRST — Test Reset for JTAG interface.
TCK/SWDCLK
5[1]
I
TCK — Test Clock for JTAG interface.
I
SWDCLK — Serial wire clock.
RTCK
100[1]
I/O
RTCK — JTAG interface control signal.
RSTOUT
14
O
RSTOUT — This is a 3.3 V pin. LOW on this pin indicates the microcontroller
being in Reset state.
RESET
17[7]
I
External reset input: A LOW on this pin resets the device, causing I/O ports and
peripherals to take on their default states, and processor execution to begin at
address 0. TTL with hysteresis, 5 V tolerant.
XTAL1
22[8][9]
I
Input to the oscillator circuit and internal clock generator circuits.
XTAL2
23[8][9]
O
Output from the oscillator amplifier.
RTCX1
16[8]
I
Input to the RTC oscillator circuit.
LPC1769_68_67_66_65_64_4
Product data sheet
Rev. 04 — 1 February 2010
© NXP B.V. 2010. All rights reserved.
13 of 66
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