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LPC4357 CPU Module, LAN8720A Ethernet PHY, Two 80-pin Sockets US$69.00

LPC4357 CPU Module, LAN8720A Ethernet PHY, Two 80-pin Sockets

The Mini4357 CPU core module contains an NXP LPC4357FET256 dual-core 32-bit ARM Cortex-M4/M0 processor. It adds external 128MB Nand Flash, 32MB SDRAM, 2Kb EEPROM, pads for adding 4Mb SPI Flash (not included), plus an SMSC LAN8720A Ethernet 10/100Mbps PHY.

Two 240-pin 0.05"-pitch female connectors are provided for connection to a host system. The EDM1070 Embedded Display Module system includes this CPU core module, for example.

LPC4357FET256 CPU Module Overview

LPC4357FET256 CPU Features

  • ARM Cortex-M4 processor and ARM Cortex-M0 co-processor running at up to 204 MHz
  • ARM Cortex-M4 built-in Memory Protection Unit (MPU) supporting eight regions
  • ARM Cortex-M4 built-in Nested Vectored Interrupt Controller (NVIC)
  • Hardware floating-point unit (FPU)
  • Non-Maskable Interrupt (NMI) input
  • JTAG and Serial Wire Debug (SWD)
  • System tick timer
  • Integrated 1MB Flash, 136kB SRAM and a 32kB ROM
  • LCD controller with support of 24bpp true-color mode and a resolution of up to 1024768
  • USB 2.0 high-speed Host/Device/OTG interface with DMA support
  • Additional USB 2.0 high-speed Host/Device interface with ULPI which supports external high-speed PHY
  • 10/100 Mbps Ethernet MAC MII/RMII interface (the board's LAN8720A PHY supports RMII only)
  • Four-wire SPI Flash interface (SPIFI) with data transfer rate of up to 40Mbps per channel
  • Two CAN 2.0B, four UART, two I2S, two I2C, two SSP, one SPI bus (not all available through on-board headers; see below)
  • Four 32-bit general-purpose timers, two standard PWMs, one motor-control PWM with Quadrature encoder interface
  • Two 10-bit ADCs operating at up to 400KHz, one 10-bit DAC operating at up to 400KHz
  • Serial GPIO interface (SGPIO)
  • 164 general-purpose I/O interfaces (see pinout below for specific pins broken out by this board)
  • Windowed watchdog timer

CPU Module Board Features

  • 128MB NAND Flash
  • 32MB SDRAM
  • 2Kb EEPROM
  • Pads for adding 4Mb SPI Flash (512KB)
  • LAN8710A Ethernet PHY
  • 12MHz, 25MHz and 32.768kHz oscillators
  • Operating Temperature: 0 to 70 C
  • Storage Temperature: -40 to +85 C
  • Operating Humidity: 0% to 90% non-condensing
  • Power Supply: DC 5V @ 0.8A
  • Dimensions: 67 45 mm
  • 6-layer PCB
  • Supports uC/OS-II v2.91 operating system
  • Supports emWin5.18 graphical interface
  • Supports FatFs vR0.08a file system (for SD card)
  • Supports LwIP v1.4.0 protocol stack

The module ships with a CD-ROM containing the OS etc., plus drivers and examples.

On-board Headers and Signals Routed to Pins

  • Two SPI
  • Three 3-wire UARTs
  • One touchscreen interface (16-bit 256RGB)
  • One I2C interface
  • One I2S interface
  • Two USB interfaces
  • Two CAN interfaces
  • One SDIO interface
  • One 10/100Mbps Ethernet interface

LPC4357FET256 CPU Module Pinout

The module affixes to a host system via two 80-pin female headers (240 each) with 0.05" pitch (1.27mm). Their pinouts are as follows:

Pin Signal Description Pin Signal Description
1VDD5V+5V power 1LED1_LINK/ACKLink LED
2VDD5V+5V power 2ENET_TXNEthernet transmit data
4GNDGND 4ENET_TXPEthernet transmit data
5TDITest data input 5USB0_IDUSB0 ID pin
6nTRSTTest system reset 6ENET_RXNEthernet receive data
7TCKTest clock 7USB0_VBUSUSB0 VBUS pin
8TMSTest mode select 8ENET_RXPEthernet receive data
9nRESETTest system reset 9GNDGND
10TDOTest data output 10GNDGND
11P1_4GPIO 11USB0_DMUSB0 bi-directional D- line
13PC_3GPIO 13USB0_DPUSB0 bi-directional D+ line
15PC_11GPIO 15P4_1GPIO
16PC_12GPIO 16P4_4GPIO
17PC_13GPIO 17P8_0GPIO
18PC_14GPIO 18P8_1GPIO
21SD_CMDGPIO 21LCD_HSYNCHorizontal sync input
22GNDGND 22LCD_BL_ENLCD backlight enable
23SD_DAT0Card data 0 23LCD_VSYNCVertical sync input
24SD_CLKCard clock 24LCD_DCLKSample clock
25SD_DAT1Card data 1 25LCD_PWRLCD power enable
26SD_CDCard command signal 26GNDGND
27PD_0GPIO 27LCD_VD4LCD panel data 4
28PD_1GPIO 28LCD_DEData input enable
29PD_2GPIO 29LCD_VD6LCD panel data 6
30PD_3GPIO 30LCD_VD3LCD panel data 3
31PD_4GPIO 31LCD_VD11LCD panel data 11
32PD_5GPIO 32LCD_VD5LCD panel data 5
33PD_6GPIO 33LCD_VD13LCD panel data 13
34PD_7GPIO 34LCD_VD7LCD panel data 7
35PD_8GPIO 35LCD_VD15LCD panel data 15
36PD_9GPIO 36LCD_VD10LCD panel data 10
37PD_10GPIO 37LCD_VD20LCD panel data 20
38PD_11GPIO 38LCD_VD12LCD panel data 12
39PD_12GPIO 39LCD_VD22LCD panel data 22
40PD_13GPIO 40LCD_VD14LCD panel data 14
41SPIFI_SIO2SPIFI Data 2 41LCD_VD23LCD panel data 23
42P9_0GPIO 42LCD_VD19LCD panel data 19
44P9_2GPIO 44LCD_VD21LCD panel data 21
45P9_3GPIO 45ADC0ADC input channel 0
46P9_4GPIO 46ADC1ADC input channel 1
47USB1_PWR_FAULTUSB1 power fail 47ADC2ADC input channel 2
48USB1_PWR_ENUSB1 power enable 48ADC3ADC input channel 3
49USB1_DMUSB1 bi-directional D- line 49ADC4ADC input channel 4
50USB0_PWR_ENUSB0 power enable 50ADC5ADC input channel 5
51USB1_DPUSB1 bi-directional D+ line 51ADC6ADC input channel 6
52P3_0GPIO 52ADC7ADC input channel 7
53USB0_PWR_FAULTUSB0 power fail 53WAKEUP0Wakeup pin 0
54USB1_VBUSVBUS drive signal 54WAKEUP1Wakeup pin 1
55GNDGND 55WAKEUP2Wakeup pin 2
56I2C_SCLI2C clock input/output 56WAKEUP3Wakeup pin 3
57U1_TXDUART1 transmit data 57SPIFI_SCKSerial clock for SPIFI
58I2C_SDAI2C data input/output 58SPI_SSELSlave Select for SPI
59U1_RXDUART1 receive data 59SPIFI_MISOMaster In Slave Out for SPIFI
60U3_TXDUART3 transmit data 60SPIFI_MOSIMaster Out Slave In for SPIFI
61U1_DTRUART1 data terminal ready 61GNDGND
62U3_RXDUART3 receive data 62SSP0_SSELSlave Select for SSP0
63U0_TXDUART0 transmit data 63SSP0_SCKSerial clock for SSP0
64EMC_A9EMC address line 9 64SSP0_MOSIMaster Out Slave In for SSP0
65U0_RXDUART0 receive data 65SSP0_MISOMaster In Slave Out for SSP0
66U2_TXDUART2 transmit data 66TP_PENIRQLCD touch interrupt request
67CAN0_TDC_CAN0 transmitter output 67TP_BUSYLCD touch busy
68U2_RXDUART2 receive data 68PF_9GPIO
69CAN0_RDC_CAN0 receiver input 69P6_1GPIO
70CAN1_TDC_CAN1 transmitter output 70P6_0GPIO
72CAN1_RDC_CAN1 receiver input 72P6_2GPIO
76PE_5GPIO 76CLK1Clock output pin 1
78PE_7GPIO 78CLK2Clock output pin 2
79PE_14GPIO 79P7_5GPIO
80PE_9GPIO 80CLK3Clock output pin 3

  • Download Mini4357 Board Mechanical Dimensions
  • See the NXP LPC4357FET256 Page for datasheets and other documentation about the CPU
  • Ships from: China
    Lead time: 1 week

    This product was added to our catalog on Thursday 12 September, 2013.


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