P8039AHL INTEL 8 bit Microcontroller

P8039AHL INTEL 8 bit Microcontroller

The P8039AHL is an HMOS II-based microcontroller from Intel’s MCS®-48 family, designed as a self-sufficient, single-chip 8-bit parallel computer. It integrates a CPU, RAM, timer/counter, and I/O control on a single silicon die, leveraging Intel’s advanced N-channel silicon gate process. Unlike ROM-embedded variants, it omits internal program memory, relying solely on external storage for flexibility in system design.

Optimized for real-time control and arithmetic processing, the P8039AHL executes instructions rapidly (1.36 µs cycle time) using a lean instruction set dominated by single-byte operations. It supports binary and BCD arithmetic, bit manipulation, and two interrupt channels, prioritizing efficiency in embedded environments. The absence of on-chip ROM simplifies prototyping, allowing developers to tailor external memory to application needs.

Engineered for expandability, the microcontroller interfaces with MCS®-80/85 peripherals and external RAM/ROM via a bidirectional bus. Its on-board oscillator minimizes external components, while quasi-bidirectional I/O ports (27 total lines) streamline peripheral connectivity. The design emphasizes low-power operation, featuring RAM standby mode for data retention during voltage drops.

Features:

• HMOS II Technology: High-performance, single 5V operation.
• Expandable Memory/I/O: Supports external RAM/ROM and MCS®-80/85 peripherals.
• On-Chip Timer: 8-bit timer/event counter for scheduling.
• Dual Interrupts: Two single-level, maskable interrupts.
• Instruction Efficiency: 90% single-byte instructions; 1 or 2-cycle execution.
• Bit Manipulation: Extensive bit-handling capabilities.
• RAM Standby Mode: Retains data during power-down.
• Bidirectional I/O Ports: 27 quasi-bidirectional lines.

Specifications:

Pin configuration:

Applications:

• Industrial Control Systems.
• Automotive Electronics.
• Consumer Appliances.
• Peripheral Controllers.
• Instrumentation Systems.

Package includes:

• 1x P8039AHL INTEL 8 bit Microcontroller

Datasheet