Micromint BCC52 8052 SBC BASIC-52 Computer Controller MMZ8 Bus 48KB EPROM Rev 3

Micromint BCC52 8052 SBC BASIC-52 Computer Controller MMZ8 Bus 48KB EPROM Rev 3

The Micromint BCC52 is an 8052-based single board computer (SBC) built around the Intel 80C52 microcontroller and designed for embedded control and development applications. It runs BASIC-52, a full floating-point BASIC interpreter firmware resident in EPROM, and communicates over the MMZ8/BCC-bus edge connector, making it compatible with the complete range of Micromint BCC-bus expansion boards. The board is Rev 3.0 and carries socketed RAM and EPROM so memory can be easily upgraded or reprogrammed.

Specifications & What's Included

• Manufacturer: Micromint
• Model: BCC52
• Revision: Rev 3.0
• CPU: Intel IP-80C52104 (MCS-51 / 8052 architecture)
• Programming language: BASIC-52 (floating-point BASIC in EPROM)
• Bus: MMZ8 / BCC-bus edge connector — compatible with full BCC-bus expansion board line
• Memory sockets: up to 48KB RAM/EPROM (socketed for easy upgrade)
• On-board EPROM programmer: intelligent 2764/128 EPROM programmer
• EPROM installed: NEC D2764A-2 (8KB, 27-series, socketed)
• SRAM installed: Hitachi HM6264LP-12 (8KB static RAM, socketed)
• Parallel I/O: 3 parallel ports via NEC D8255AC-2 PIO chips (×2 chips visible)
• Serial terminal port: DB-25, with auto baud rate selection
• Serial printer port: DB-25
• Logic: 74LS245N bus transceivers, DM7407N, additional 74-series logic
• Form factor: card/module with MMZ8 bus edge connector
• Item includes: BCC52 board only — no enclosure or external power supply

Applications

The BCC52 was designed and sold by Micromint in the 1980s as a cost-effective alternative to dedicated programmable controllers for embedded and process control applications. Running BASIC-52 — a floating-point BASIC interpreter developed specifically for the 8052 — the board could be programmed in high-level BASIC rather than assembly, which significantly lowered the barrier to developing custom control logic. Typical uses included industrial process control, data acquisition, laboratory automation, and machine control, as well as prototyping and firmware development for OEM products. The MMZ8/BCC-bus architecture allowed the BCC52 to be paired with a variety of Micromint expansion boards (digital I/O, analog I/O, memory expansion, communications), making it a flexible foundation for both standalone end-use deployments and development work. Today the BCC52 is sought by collectors and engineers maintaining vintage 8052-based systems, as well as hobbyists interested in early single-board computing and BASIC-52 development.