EM1344V221SO8B+

Overview

The EM1344V221SO8B+ is an ultra-low power 8-pin flash microcontroller manufactured by EM Microelectronic. It features a large supply voltage range of 2.0 V to 5.5 V and requires no external components. The device includes 4096 × 16 bits of Flash memory and 80 × 4 bits of RAM. It operates with an internal RC oscillator ranging from 32 kHz to 800 kHz, providing two clocks per instruction cycle. Key electrical characteristics include 5.8 µA active mode current, 3.3 µA standby mode current, and 0.32 µA sleep mode current. It supports up to four outputs, including two high drive outputs of 10 mA, and up to five inputs.

Feature Summary

• Ultra-low power consumption across active, standby, and sleep modes
• Integrated 4-bit ADC or 12-level Supply Voltage Level Detector (SVLD)
• Built-in Sleep Counter Reset for automatic wake-up from sleep mode
• Comprehensive peripheral set including watchdog timer, serial port, and universal counter

Applications

• Battery-powered portable devices requiring extended operational life
• Smart home sensors and actuators
• Industrial monitoring systems with low duty cycles
• Wearable electronics and health monitoring devices

Procurement Notes

Verify the complete part number against official EM Microelectronic documentation to ensure compatibility with specific package variants and ordering suffixes. Confirm that the SO-8 package type matches your PCB footprint requirements. Cross-reference the manufacturing date code and quality certifications if applicable to your production standards. Ensure that the voltage range specifications align with your system's power supply design constraints.

Selection Notes

Select this component when a robust 8-pin microcontroller with integrated Flash memory is required for cost-sensitive applications. It is suitable for designs needing moderate processing power with strict energy efficiency constraints. Consider its I/O capabilities and peripheral availability relative to system interface requirements. Evaluate the internal oscillator stability against timing precision needs of the application.

Part Context

This microcontroller belongs to the EM6580 family of ultra-low power devices designed for embedded control tasks. It shares architectural similarities with other members in the series, such as the EM6580, but offers specific memory configurations and package options tailored for compact designs. The device integrates essential peripherals to minimize external component count, supporting efficient system integration.

Replacement Considerations

Direct substitutes within the same family include the EM6580SO8B. Verify pinout compatibility and software register mapping before substitution. Alternative packages like die form factor may require redesign considerations.