MB91270/280 is a single chip microcontroller based on a 32-bit high-efficiency RISC CPU, which is used for building various I/O resources and bus control mechanisms to meet the needs of embedded control with high performance/high speed CPU processing. Because the vast address space that 32-bit CPU accesses is supported, the external bus access is basically. To speed up CPU instruction execution, MB91270/280 has built-in RAM of 16 Kbytes (for data) . It is best specification for the embedded usage in which efficient CPU processing power such as the digital video camera, navigation systems, and DVD players is demanded. The MB91270/280 series power-up the bus access based on FR30/40 family CPU, and is FR60 Lite family corresponding to use at high speed.
The MB91270/280 series is a single‑chip 32‑bit proprietary microcontroller that integrates a high‑performance RISC CPU, 16 KB of built‑in RAM, and a wide range of I/O resources. It targets applications such as digital video cameras, navigation systems, and DVD players, offering up to 32 MHz operation and extensive peripheral support including CAN, LIN‑UART, timers, and ADC/DAC modules.
The document provides package options (401‑pin ceramic PGA and 100‑pin plastic LQFP), detailed pin‑assignment tables, electrical characteristics, and ordering information. It also lists the full product lineup with memory sizes, peripheral counts, and optional features such as clock modulators and low‑power modes.
| Maximum operating frequency | 32 MHz |
|---|---|
| Built‑in RAM | 16 KB |
| Supply voltage | 3.5 V to 5.5 V |
| I/O ports | Maximum 120 ports |
| CAN controllers | 3 channels (max) |
| LIN‑UART channels | Up to 7 channels |
| Reload timers | 3 channels (16‑bit) |
| Package types | 401‑pin ceramic PGA, 100‑pin plastic LQFP |
The microcontroller can run at up to 32 MHz.
It includes 16 KB of built‑in RAM for data.
The device operates from 3.5 V to 5.5 V.
The chip provides a maximum of 120 I/O ports.