LPC1751 데이터 시트보기 (PDF) - Philips Electronics
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LPC1751
Philips Electronics
LPC1751 Datasheet PDF : 64 Pages
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NXP Semiconductors
LPC1759/58/56/54/52/51
32-bit ARM Cortex-M3 microcontroller
Table 3. Pin description …continued
Symbol
Pin
Type Description
P2[8]/TD2/
TXD2
50[1]
I/O P2[8] — General purpose digital input/output pin.
O
TD2 — CAN2 transmitter output. (LPC1759/58/56 only).
O
TXD2 — Transmitter output for UART2.
P2[9]/
USB_CONNECT/
RXD2
49[1]
I/O P2[9] — General purpose digital input/output pin.
O
USB_CONNECT — Signal used to switch an external 1.5 kΩ resistor under
software control. Used with the SoftConnect USB feature.
I
RXD2 — Receiver input for UART2.
P2[10]/EINT0/NMI 41[5]
I/O P2[10] — General purpose digital input/output pin.
Note: LOW on this pin while RESET is LOW forces on-chip bootloader to take
over control of the part after a reset.
I
EINT0 — External interrupt 0 input.
I
NMI — Non-maskable interrupt input.
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. Some port pins are not available on the LQFP80 package.
P4[28]/RX_MCLK/ 65[1]
MAT2[0]/TXD3
I/O P4[28] — General purpose digital input/output pin.
I
RX_MCLK — I2S receive master clock. (LPC1759/58/56 only).
O
MAT2[0] — Match output for Timer 2, channel 0.
O
TXD3 — Transmitter output for UART3.
P4[29]/TX_MCLK/ 68[1]
MAT2[1]/RXD3
I/O P4[29] — General purpose digital input/output pin.
I
TX_MCLK — I2S transmit master clock. (LPC1759/58/56 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.
RSTOUT
11
O
RSTOUT — This is a 3.3 V pin. LOW on this pin indicates
LPC1759/58/56/54/52/51 being in Reset state.
RESET
14[6]
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
19[7][8]
I
Input to the oscillator circuit and internal clock generator circuits.
XTAL2
20[7][8]
O
Output from the oscillator amplifier.
RTCX1
13[7]
I
Input to the RTC oscillator circuit.
RTCX2
15[7]
O
Output from the RTC oscillator circuit.
VSS
24, 33, I
ground: 0 V reference.
43, 57,
66, 78
LPC1759_58_56_54_52_51_4
Product data sheet
Rev. 04 — 26 January 2010
© NXP B.V. 2010. All rights reserved.
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