W90N740 is a 32-bit ARM ^®7TDMI-based MCU. It is a high performance, low cost networking oriented microcontroller. W90N740 targets at managed Ethernet switch, management board of data communications and telecommunications system, printer server, and other applications which need a feature rich and low cost communication processor. The build-in cache controller has 8K-byte I-cache and 2K-byte D-cache for accelerate program execution. Dual 10/100Mbps Ethernet MACs is enhanced by the Network Address Translator (NAT) Accelerator to achieve near-wire-speed data communication between the two ports. USB Host Controller and Root-hub on-chip control external downstream USB devices, such as printers and mass storage devices. A flexible peripheral bus supports SDRAM, flash memory and I/O devices. Additional features include on-chip UART, Timer, GPIO, Interrupt Controller and Watchdog Timer. Standard JTAG debug port is supported by leading third party ICE suppliers.

• ARM® 7TDMI core (80MHz)
• JTAG debug interface
• Flexible External Bus Interface (EBI) for external SDRAM, ROM/flash and external I/O devices
• 8K-byte Instruction Cache and 2K-byte Data Cache
• Dual 10/100 Mbps Ethernet MAC Controllers with MII/RMII interface & DMA engine
• Hardware Network Address Translator (NAT) Accelerator
• OHCI USB 1.1 Host Controller with Root Hub
• Low cost 176 PQFP package

• Industry standard 32-bit core for optimized cost/performance
• Leading ICE tool supplier support
• Customers select/optimize memory and I/O configurations
• Increased instruction/data access performance; cache can be configured as internal SRAM
• Support two high performance LAN segments with industry standard PHYs
• Near wire-speed communication for the two Ethernet MAC ports
• Up to two downstream USB ports for hubs, printers, mass storage devices (flash drives) and others
• Reduced system cost

• Managed Ethernet Switches
• Management Board for Data and Telecommunication Communications Systems
• Printer Servers
• Receipt Printers
• Industrial and Process Controllers

80 MHz, 4K I-cache, 4K D-cache, 10/100 MAC, Color LCD Controller, USB1.1 Host/Device, DMAC, UART, Timers, GPIO, INTC, RTC, PWM, I2C M/S, USI, 2x I2S, PC/SC, SD/SDIO, Key scan, PS2, Pwr Ctrl
Sample Code Operating Document
Technical Training Material (Part I)
Technical Training Material (Part II)

80 MHz, 4K I-cache, 4K D-cache, 10/100 MAC, Color LCD Controller, USB1.1 Host/Device, DMAC, UART, Timers, GPIO, INTC, RTC, PWM, I2C M/S, USI, 2x I2S, PC/SC, SD/SDIO, Key scan, PS2, Pwr Ctrl, Pb-free
Sample Code Operating Document
Technical Training Material (Part I)
Technical Training Material (Part II)

80 MHz, 8K I-cache, 2K D-cache, 2 MACs, H/W NAT, 2 USB1.1 Host, 21 GPIO pins, Full modem function UART

80 MHz, 8K I-cache, 2K D-cache, 2 MACs, H/W NAT, 2 USB1.1 Host, 21 GPIO pins, Full modem function UART, Pb-free

80 MHz, 4K I-cache, 4K D-cache, One MAC, One USB 2.0 full speed Host controller, One USB 2.0 full speed Host/Device controller, AC97/I²S, 4 UARTs, I²C Master, 31 GPIOs, Power Management

80 MHz, 4K I-cache, 4K D-cache, One MAC, One USB 2.0 full speed Host controller, One USB 2.0 full speed Host/Device controller, AC97/I²S, 4 UARTs, I²C Master, 31 GPIOs, Power Management, Pb-free