ACE1001MT8X

Overview

The ACE1001MT8X is an 8-bit microcontroller from the ACEx family, fabricated in fully static CMOS technology. It integrates a 1K byte code EEPROM, 64 bytes of data EEPROM, and 64 bytes of RAM. The device features an on-chip oscillator with a 1 µs instruction cycle time, a programmable 8-bit timer with PWM output, and watchdog/idle timers. Operating voltages range from 2.2V to 5.5V for standard variants, supporting single-supply operation. It includes power management modes such as HALT and IDLE, along with on-chip power-on reset and brown-out detection circuitry.

Feature Summary

• Integrated Arithmetic Controller Engine optimized for bit manipulation and arithmetic operations
• On-chip oscillator eliminating the need for external clock components
• Programmable 8-bit timer capable of generating PWM signals
• Multi-input wake-up capability on three I/O pins

Applications

• Low power embedded control systems
• Battery operated devices requiring extended standby life
• Simple arithmetic processing tasks
• Bit manipulation applications

Procurement Notes

Verify the specific voltage grade suffix (L or standard) required for your operating range, as the ACE1001L supports 1.8V while the standard ACE1001 starts at 2.2V. Confirm that the MT8X suffix corresponds to the TSSOP-8 package variant if space constraints are critical. Ensure programming equipment compatibility with the serial interface requirements defined in the datasheet electrical characteristics.

Selection Notes

Select this component when a low-cost, fully static 8-bit controller is needed for simple logic and arithmetic functions. The integrated EEPROM allows for non-volatile storage without external chips. Consider the HALT mode current specifications if deep sleep is required. Verify that the 1MHz internal clock frequency meets the timing requirements of your application logic.

Part Context

This part belongs to the Fairchild Semiconductor ACE1001 Product Family, later acquired by onsemi. The ACEx architecture uses a modified Harvard design with memory-mapped I/O. The MT8X designation indicates the TSSOP-8 package option within the broader family that also includes SOIC-8 packages and various temperature grades.

Replacement Considerations

Direct replacements include other members of the ACE1001 family such as the ACE1001M8X or ACE1001EM8X, provided the package and temperature range match. Cross-family replacements require careful verification of pinouts, instruction set compatibility, and memory sizes.