P80C32UFBB – Microcontroller – NXP

The P80C32UFBB is an 8-bit ROMless microcontroller from NXP (formerly Philips) built on the 80C51/8052 core, featuring 256 bytes of RAM, a full-duplex UART, and three 16-bit timers in a PQFP-44 package. This obsolete part is available for RFQ.

The P80C32UFBB is an 8-bit microcontroller from NXP (formerly Philips Semiconductors) based on the industry-standard 80C51/8052 core. As a ROMless member of the family, the P80C32UFBB executes program code from external memory, making it ideal for designs that require field-updatable firmware or larger program stores. It pairs the proven 8052 instruction set with 256 bytes of on-chip RAM, three 16-bit timer/counters, a full-duplex UART, and a six-source, two-priority-level nested interrupt structure, all delivered in a 44-pin PQFP (SOT307-2) surface-mount package.

The “U” speed grade of the P80C32UFBB is rated for operation up to 33 MHz, and the “F” temperature grade covers the -40 C to +85 C industrial range. With its wide 2.7 V to 5.5 V supply range, the P80C32UFBB remains a dependable choice for maintaining and repairing legacy 8051/8052-based equipment.

Key Features

• 8-bit microcontroller built on the 80C51/8052 core (ROMless)
• 256 bytes of on-chip data RAM
• No on-chip ROM — executes program code from external program memory
• Maximum clock frequency of 33 MHz (“U” speed grade)
• 32 programmable I/O lines
• Three 16-bit counter/timers
• Six-source, two-priority-level nested interrupt structure
• Full-duplex UART serial port
• Wide operating supply voltage of 2.7 V to 5.5 V
• Industrial temperature range of -40 C to +85 C (“F” grade)
• 44-pin PQFP (SOT307-2) package

Applications

• Embedded control systems
• Industrial automation and control
• Consumer electronics
• Legacy 8051/8052-based product maintenance and replacement
• Communications equipment

Why Source P80C32UFBB from Pacific Component Xchange

The P80C32UFBB is an obsolete, no-longer-manufactured device, which makes reliable sourcing a challenge for engineers keeping legacy 8051/8052 systems in production. Pacific Component Xchange specializes in locating hard-to-find and end-of-life components like the P80C32UFBB, with a commitment to authenticity and quality verification on every order. Because pricing and availability on obsolete parts change frequently, the P80C32UFBB is offered on a Request-for-Quote (RFQ) basis — simply submit a quote request and our team will confirm current stock, lead time, and pricing. We support global shipping to keep your production and repair programs running.