MC97F2464AQ

The MC97F2464AQ is a CMOS 8-bit microcontroller based on the high-speed 8051 core designed for embedded control applications. It integrates 64 Kbytes of on‑chip Flash program memory, 4,352 bytes of SRAM (256 bytes IRAM + 4,096 bytes XRAM) and a broad set of peripherals optimized for cost‑effective, flexible system designs.

Targeted at home appliance and industrial control markets, the device combines a 16 MHz internal RC oscillator, a 12‑bit A/D converter, multiple timers/PWM channels and serial interfaces to simplify sensor interfacing, user‑interface control and general embedded control tasks while supporting power‑saving modes and a wide supply range.

Key Features

• Core – High-speed 8-bit M8051-compatible CPU (2 clocks per cycle) for familiar 8051 software and tool compatibility.
• Memory – 64 Kbytes of on‑chip Flash program memory with self read/write capability and 4,352 bytes SRAM (256 bytes IRAM + 4,096 bytes XRAM) for code and data storage.
• Clock & Power – Internal 16 MHz RC oscillator (±2.0%, TA = 0 ~ +50°C), support for external oscillator, and power supply range of 2.2 V to 5.5 V with on‑chip POR, LDO and low voltage detection.
• Timers & PWM – Multiple 8/16‑bit timers and PWM channels for precise timing, motor control and pulse generation.
• Analog – 12‑bit A/D converter with 10 inputs (package-dependent) for high-resolution sensor interfacing.
• Serial Interfaces – Rich connectivity including UART (8‑bit ×3), SPI (8‑bit ×2) and USI sets providing UART/SPI/I2C functionality for flexible peripheral connectivity.
• System Peripherals – Integrated watchdog timer (with RC oscillator ~5 kHz), 16‑bit CRC/checksum generator and buzzer driver to support system reliability and user feedback.
• I/O & Package – Up to 41 programmable I/O lines in a 44‑MQFP surface‑mount package (10 × 10 mm, 0.8 mm pitch).
• Operating Range – Industrial temperature range of −40 °C to +85 °C for robust operation in varied environments.
• Development & Production – On‑chip debug and in‑system programming (ISP) capabilities to streamline firmware development and field programming.

Typical Applications

• Home Appliances – Control and user‑interface tasks such as display driving, keypad scanning and basic motor control in appliances.
• Industrial Control – Sensor acquisition, timing and control functions in automation and machine control systems operating across a wide supply range and temperature range.
• Embedded Control & Sensor Hubs – Data acquisition and preprocessing using the 12‑bit ADC and multiple serial interfaces for sensor networks and local control nodes.

Unique Advantages

• Highly integrated solution: 64 Kbytes Flash combined with ADC, timers, PWM, CRC and watchdog reduces external component count and simplifies BOM.
• Flexible connectivity: Multiple UART, SPI and USI interfaces support a variety of peripheral topologies and communication requirements.
• Wide supply and temperature range: Operates from 2.2 V to 5.5 V and from −40 °C to +85 °C to support diverse system designs and environments.
• On‑board system support: Built‑in POR, LDO, low voltage detect and watchdog assist reliable system startup and fault recovery.
• Development friendly: On‑chip debug and in‑system programming speed development cycles and simplify firmware updates in production.
• Compact, surface‑mount package: 44‑MQFP (10×10‑0.8 mm) balances small footprint with up to 41 I/O for space‑constrained designs.

Why Choose MC97F2464AQ?

The MC97F2464AQ delivers a balanced combination of 8‑bit 8051 compatibility, substantial on‑chip Flash memory and a comprehensive peripheral set designed for embedded control. Its ADC, multiple timers/PWM channels, serial interfaces and system monitors make it suitable for designers aiming to integrate sensing, control and human‑interface functions with minimal external components.

With wide voltage operation, industrial temperature rating and development features such as on‑chip debug and ISP, the MC97F2464AQ is positioned for reliable, scalable deployment in home appliance and industrial control applications where integration, flexibility and predictable behavior matter.

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