General description

The LPC2290 microcontroller is based on a 16/32-bit ARM7TDMI-S CPU with real-time emulation and embedded trace support. For critical code size applications, the alternative 16-bit Thumb mode reduces code by more than 30 with minimal performance penalty.

Features

Enhancements introduced with LPC2290/01 device

■ CPU clock up to 72 MHz and 64 kB of on-chip static RAM.

■ Fast GPIO ports enable port pin toggling up to 3.5 times faster than the original LPC2290. A port pin can be read at any time regardless of its function.

■ Dedicated result registers for ADC reduce interrupt overhead.

■ UART0/1 include fractional baud rate generator, auto-bauding capabilities and handshake flow-control fully implemented in hardware.

■ SSP serial controller supporting SPI, 4-wire SSI, and Microwire buses.

Key features common for LPC2290 and LPC2290/01

■ 16/32-bit ARM7TDMI-S microcontroller in a LQFP144 package.

■ 16/64 kB on-chip static RAM.

■ Serial bootloader using UART0 provides in-system download and programming capabilities.

■ EmbeddedICE-RT and Embedded Trace interfaces offer real-time debugging with the on-chip RealMonitor software as well as high-speed real-time tracing of instruction execution.

■ Two interconnected CAN interfaces with advanced acceptance filters. Additional serial interfaces include two UARTs (16C550), Fast I2C-bus (400 kbit/s) and two SPIs.

■ Eight channel 10-bit ADC with conversion time as low as 2.44 μs.

■ Two 32-bit timers (with four capture and four compare channels), PWM unit (six outputs), Real-Time Clock (RTC) and watchdog.

■ Vectored Interrupt Controller (VIC) with configurable priorities and vector addresses.

■ Configurable external memory interface with up to four banks, each up to 16 MB and 8/16/32-bit data width.

■ Up to 76 general purpose I/O pins (5 V tolerant). Up to nine edge/level sensitive external interrupt pins available.

■ 60/72 MHz maximum CPU clock available from programmable on-chip PLL with settling time of 100 μs.

■ On-chip crystal oscillator with an operating range of 1 MHz to 30 MHz.

■ Power saving modes include Idle and Power-down.

■ Processor wake-up from Power-down mode via external interrupt.

■ Individual enable/disable of peripheral functions for power optimization.

■ Dual power supply:

◆ CPU operating voltage range of 1.65 V to 1.95 V (1.8 V ± 0.15 V).

◆ I/O power supply range of 3.0 V to 3.6 V (3.3 V ± 10 ) with 5 V tolerant I/O pads.