ACE1502EM

Overview

The ACE1502EM is a CMOS-based, fully static programmable microcontroller unit (MCU) designed for high-performance and low-power applications. It features an 8-bit core with 2K bytes of code EEPROM, 64 bytes of data EEPROM, and 64 bytes of RAM. The device operates on a single supply voltage ranging from 1.8V to 3.6V and includes integrated peripherals such as a 16-bit timer, watchdog timer, and programmable undervoltage detection. It supports multiple package options including 8-pin SOIC, TSSOP, and DIP.

Feature Summary

• Integrated hardware bit encoder for IR/RF data transmission simulation
• All general-purpose I/O pins support multi-input wake-up functionality
• On-chip oscillator eliminates the need for external clock components
• Supports in-circuit programming of code and data EEPROM arrays

Applications

• Low-power embedded systems requiring small form factors
• IR/RF remote control devices utilizing hardware bit encoding
• Battery-operated consumer electronics needing extended data retention
• Systems requiring precise timing via 16-bit capture capabilities

Procurement Notes

Verify that the suffix 'EM' corresponds to the specific package variant required, typically indicating an 8-pin SOIC or similar surface-mount option within the ACE1502 family. Confirm the operating temperature range matches the application environment, as specifications vary between industrial and commercial grades. Ensure compatibility with the intended programming interface for in-circuit updates. Cross-reference the manufacturer's current datasheet to validate pinout configurations and absolute maximum ratings before finalizing procurement.

Selection Notes

Select this component when design constraints demand minimal external circuitry due to the integrated oscillator and reset functions. It is suitable for applications requiring significant non-volatile storage for both program code and persistent data without external memory chips. Consider the available package types if board space is limited. Evaluate the power consumption requirements against the specified HALT and IDLE modes to ensure compliance with battery life expectations.

Part Context

The ACE1502 belongs to the ACEx (Arithmetic Controller Engine) product family developed by Fairchild Semiconductor, now part of ON Semiconductor. This series targets applications prioritizing low power consumption alongside computational efficiency. The family shares common architectural features but varies in memory sizes and peripheral sets. The ACE1502 represents a mid-range offering within this portfolio, balancing processing capability with cost-effective integration.

Replacement Considerations

Direct substitutes within the same family include other ACE1502 variants with different suffixes indicating package or temperature differences. Check for functional equivalents in the ACE1001, ACE1101, or ACE1202 series if memory requirements differ. Verify pin-to-pin compatibility and software register mapping before substituting.