MC97F2664ASL

The MC97F2664ASL is an 8-bit CMOS microcontroller based on a high-speed M8051 CPU core, designed for embedded control applications in home appliances and industrial control. It combines a 64 Kbyte Flash program memory with a rich set of on-chip peripherals—timers, PWM, ADC, communication interfaces and system supervision—to deliver a highly integrated solution for compact, power-conscious designs.

Key Features

• Core  8-bit M8051-compatible CISC CPU (2 clocks per cycle) with an internal 16 MHz RC oscillator (±2.0% at TA = 0 ~ +50°C) and a 5 kHz watchdog RC oscillator.
• Memory  64 Kbytes of Flash with in-system programming and on-chip debug; 4,352 bytes SRAM (256 bytes IRAM + 4,096 bytes XRAM).
• Flash Endurance & Retention  Specified endurance (10,000 cycles for sectors 0–1019; 100,000 cycles for sectors 1020–1023) and minimum data retention of 10 years.
• Voltage & Temperature  Wide operating voltage range 2.2 V to 5.5 V and industrial temperature range −40 °C to +85 °C.
• Timers & PWM  Multiple timers: four 8-bit timers (T0–T3) and six 16-bit timers (T4–T9); programmable pulse generation and 8-bit PWM via T0–T3; dedicated watch timer with selectable intervals.
• Analog  12-bit ADC with up to 15 input channels and 50 ksps sampling capability for sensor and signal acquisition.
• Connectivity  Multiple serial interfaces: UART (up to 3 channels), SPI (2 channels), and USI sets supporting UART/SPI/I2C modes.
• System Reliability  On-chip peripherals including Power-On Reset (POR), low-voltage detection, Watchdog Timer (WDT), and a 16-bit CRC/checksum generator for data integrity.
• Peripheral I/O  Up to 61 programmable I/O lines across the 64-pin package, plus a dedicated buzzer driving port.
• Package  Available in a 64-LQFP package (10 × 10 mm, 0.5 mm pitch), suitable for surface-mount assembly.

Typical Applications

• Home Appliances  Control and user-interface tasks (timers, ADC-based sensor sampling, PWM-driven indicators and buzzers) for consumer appliances.
• Industrial Control  Process control and monitoring where wide voltage range, industrial temperature operation, and multiple timers and communications are required.
• Sensor Hubs and Data Acquisition  Multichannel 12-bit ADC and CRC checksum hardware enable reliable sensor interfacing and integrity-checked data collection.

Unique Advantages

• Highly integrated peripherals: Combines ADC, multiple timers, PWM, communications and CRC hardware on-chip to reduce BOM and simplify system design.
• Flexible power and environmental range: 2.2–5.5 V operation and −40 °C to +85 °C rating support a broad set of deployment environments.
• Proven program memory strategy: 64 Kbytes of Flash with ISP, on-chip debug and documented endurance/retention figures for long-term firmware management.
• Rich timer and PWM resources: Multiple 8-bit and 16-bit timers plus programmable pulse generation and PWM channels for motor, actuator and timing-centric applications.
• Comprehensive I/O and communications: Up to 61 GPIOs with UART, SPI and USI interfaces provide flexible connectivity for sensors, displays and peripherals.
• Built-in safety and integrity features: POR, LVD/LVI, WDT and hardware CRC help maintain reliable operation and data integrity in embedded systems.

Why Choose MC97F2664ASL?

The MC97F2664ASL is positioned as a compact, highly integrated 8-bit microcontroller for embedded control tasks where a combination of analog acquisition, diverse timing resources and multiple communications channels is required. Its 64 Kbytes of Flash, paired with 4.25 Kbytes of SRAM and extensive peripheral set, enables designers to consolidate functionality and reduce external components.

This device is suited to developers building home appliance controls, industrial automation modules and sensor acquisition units that require robust reset/supervision features, defined flash endurance and broad voltage/temperature operation. On-chip ISP and debug facilities support in-system firmware updates and development workflows that improve time to market.

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