NXP | LPC2377FBD144,551

The LPC2377/78 microcontrollers are based on a 16-bit/32-bit ARM7TDMI-S CPU with real-time emulation that combines the microcontroller with 512 kB of embedded high-speed flash memory. A 128-bit wide memory interface and a unique accelerator architecture enable 32-bit code execution at the maximum clock rate. For critical performance in interrupt service routines and DSP algorithms, this increases performance up to 30 % over Thumb mode. For critical code size applications, the alternative 16-bit Thumb mode reduces code by more than 30 % with minimal performance penalty.

Features and Benefits :

• ARM7TDMI-S processor, running at up to 72 MHz.
• Up to 512 kB on-chip flash program memory with In-System Programming (ISP) and In-Application Programming (IAP) capabilities. Flash program memory is on the ARM local bus for high performance CPU access.
• 32 kB of SRAM on the ARM local bus for high performance CPU access.
• 16 kB SRAM for Ethernet interface. Can also be used as general purpose SRAM.
• 8 kB SRAM for general purpose DMA use also accessible by the USB.
• Dual Advanced High-performance Bus (AHB) system that provides for simultaneous Ethernet DMA, USB DMA, and program execution from on-chip flash with no contention between those functions. A bus bridge allows the Ethernet DMA to access the other AHB subsystem.
• EMC provides support for static devices such as flash and SRAM as well as off-chip memory mapped peripherals.
• Advanced Vectored Interrupt Controller (VIC), supporting up to 32 vectored interrupts.
• Standard ARM test/debug interface for compatibility with existing tools.
• Emulation trace module supports real-time trace.
• Single 3.3 V power supply (3.0 V to 3.6 V).
• Four reduced power modes: idle, sleep, power-down, and deep power-down.
• Four external interrupt inputs configurable as edge/level sensitive. All pins on Port 0 and Port 2 can be used as edge sensitive interrupt sources.
• Processor wake-up from Power-down mode via any interrupt able to operate during Power-down mode (includes external interrupts, RTC interrupt, USB activity, Ethernet wake-up interrupt).
• Two independent power domains allow fine tuning of power consumption based on needed features.
• Each peripheral has its own clock divider for further power saving.
• Brownout detect with separate thresholds for interrupt and forced reset.
• On-chip power-on reset.

Applications :

• Industrial control
• Medical systems
• Protocol converter
• Communications