Key features brought by LPC2292/2294/01 devices
Fast GPIO ports enable port pin toggling up to 3.5 times faster than the
original device. They also allow for a port pin to be read at any time
regardless of its function.
Dedicated result registers for ADC(s) reduce interrupt overhead. The ADC
pads are 5 V tolerant when configured for digital I/O function(s).
UART0/1 include fractional baud rate generator, auto-bauding capabilities
and handshake flow-control fully implemented in hardware.
Buffered SSP serial controller supporting SPI, 4-wire SSI, and Microwire
- SPI programmable data length and leader mode enhancement.
Diversified Code Read Protection (CRP) enables different security levels
to be implemented. This feature is available in LPC2292/2294/00 devices as
- General purpose timers can operate as external event counters.
Key features common for all devices
16/32-bit Arm7TDMI-S™ microcontroller in a LQFP144
16 kB on-chip static RAM and 256 kB on-chip flash program memory. 128-bit
wide interface/accelerator enables high-speed 60 MHz operation.
In-System Programming/In-Application Programming (ISP/IAP) via on-chip
bootloader software. Single flash sector or full chip erase in 400 ms and
programming of 256 B in 1 ms.
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/four (LPC2292/2294) 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
Configurable external memory interface with up to four banks, each up to
16 MB and 8/16/32-bit data width.
Up to 112 general purpose I/O pins (5 V tolerant). Up to nine edge/level
sensitive external interrupt pins available.
60 MHz maximum CPU clock available from programmable on-chip PLL with
settling time of 100 µs.
The on-chip crystal oscillator should have an operating range of 1 MHz to
- 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.