MCF51EM256 is Freescale’s smart-meter-on-a-chip 32-bit ColdFire V1 core microcontroller (MCU) with embedded LCD controller, 16-bit analog-to-digital converter (ADC), and metrology-specific peripherals optimized for smart meter applications. MCF51EM256 comes with a full suite of hardware and software tools that make development quick and easy.
32-bit V1 ColdFire CPU offering 47 MIPS at 50 MHz 3.3-volt single supply
Up to 256 KB flash (dual bank)
Up to 16 KB SRAM
Low-power operation mode
4 x 16-bit segmentation and reassembly (SAR) ADC
288 segment LCD driver
Up to 50 general purpose input/output (GPIO)
Integrated real-time clock (RTC)
Automatic meter reading (AMR) serial peripheral interface (SPI)
Background debug mode (BDM) for in-circuit debugging