EM783-MC3E

Application Specific Microcontrollers Overview

The EM783-MC3E is a single-channel application processor for energy measurement, featuring an ARM Cortex-M0 core operating at up to 48 MHz. It integrates a metrology engine delivering up to 1% accuracy with a dynamic range of 1,000:1. The device includes 26 kB of flash memory, 7.2 kB of SRAM, and 4 kB of on-chip EEPROM for calibration parameters. Key peripherals include UART, SPI, I2C, GPIOs, and a built-in temperature sensor accurate within 3 °C. Designed for billing-grade applications, it supports power line frequency detection and tracking.

Application Specific Microcontrollers Feature Summary

• Metrology engine with up to 1% accuracy and 1,000:1 dynamic range
• ARM Cortex-M0 CPU running at frequencies up to 48 MHz
• Integrated serial peripherals including UART, SPI, and I2C
• Built-in temperature sensor with ±3 °C accuracy

Application Specific Microcontrollers Applications

• Smart plugs and plug meters
• Single-phase residential meters
• DALI/DMX and KNX nodes with metering functionality
• Industrial sub-meters
• Power monitors for servers

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'E' against official documentation to confirm package type or temperature range variations. Ensure compatibility with existing design requirements for single-channel energy monitoring before procurement.

Application Specific Microcontrollers Selection Notes

Select the EM783-MC3E for single-channel applications requiring high metrological accuracy. Compare memory sizes across variants; this model offers 26 kB flash and 7.2 kB SRAM. Consider the MC6 variant if six current channels are needed.

Application Specific Microcontrollers Part Context

The EM783 family comprises variants for single-channel (SC), single-phase (SP), multi-channel (MC), and three-phase (TP) configurations. The MC3 variant specifically targets multi-channel setups with three current inputs and one voltage input, utilizing a 36 MHz minimum CPU speed.

Application Specific Microcontrollers Replacement Considerations

For direct replacements, consider other EM783 family members like the EM783-SC or EM783-SP depending on channel requirements. Verify pinout and memory constraints when substituting.