MICROCONTROLLER SOLUTIONS

Compact Microcontrollers Provide USB for any Application

The LPC214x series from Philips is an ARM7® microcontroller family with full USB 2.0 compliance and USB.org certification. The full-speed USB 2.0 device supports 32 end points with 2KByte of endpoint RAM, 8KByte of RAM usable by the USB DMA (LPC2146 and LPC2148 only), and all data transfer modes (Control, Interrupt, Bulk and Isochronous).



This series of five low-power MCUs allows designers to add USB functionality to almost any end application. In addition to the USB 2.0 full-speed function, they have from 32KByte to 512KByte of zero-wait-state on-chip Flash memory, 8KByte to 40KByte SRAM, single or dual 10-bit ADC, a 10-bit DAC, and a low-power real-time clock.

The complete LPC21xx family is supplied in the same small 10mm x 10mm LQFP64 packages, and these devices include many serial communications interfaces including multiple UARTs, I²C and SPI, as well as 45 fast general purpose I/O lines.

The LPC2141/42/44/46/48 microcontrollers are based on a 16-bit/32-bit ARM7TDMI-S CPU with real-time emulation and embedded trace support. A 128-bit wide memory interface and a unique accelerator structure enable 32-bit code execution at the maximum clock rate. For applications where code size is a critical consideration, the alternative 16-bit Thumb mode reduces program memory requirements by more than 30%, with minimal performance penalty.

Their tiny size and low power consumption make the LPC214x series well-suited to applications where miniaturisation is a key requirement, such as access control and point-of-sale. Due to their rich range of serial communications interfaces, they can also be used in communication gateways, protocol converters and soft modems. A combination of large buffer size and high processing power opens up further applications in voice recognition and low-end imaging. A range of on-chip 32-bit timers, ADC/DAC, PWM channels, multiple GPIO lines and nine external interrupt pins also suit them for use in industrial control and medical systems.

Features

• Tiny USB-equipped ARM7 microcontrollers
• 60MHz 32-Bit ARM7 core architecture
• Full-speed USB 2.0 device
• Very fast on-chip Flash up to 512KByte
• Up to 40KByte SRAM
• 45 fast I/O pins with up to 15MHz switching
• Vectored Interrupt Controller (VIC)
• Very small 10mm x 10mm LQFP packaging
• Single or dual 10-bit ADC
• 10-bit DAC
• Range of serial interfaces
  • Multiple UARTs
  • SPI
  • I²C
• Nine external interrupts

Applications

• Entertainment
• Connectivity
  • Communication gateways
  • Protocol converters
  • Soft modems
• Display applications
• Access control
• Point-of-sale
• Voice recognition
• Industrial control
• Medical systems

For further information, including the Philips LPC214x family Datasheet, please click here