MC912DT128ACPV-FR
MC912DT128ACPV-FR 16-Bit 8MHz 128KB MCU | NXP
The NXP Semiconductors MC912DT128ACPV-FR is a 16-bit CPU12 microcontroller operating at 8 MHz, with 128 KB of program flash memory and 8 KB of RAM. It is packaged in a 112-pin LQFP measuring 20 mm by 20 mm and is intended for embedded control systems requiring on-chip flash, serial communications, analog conversion, timers, and a broad general-purpose I/O interface. The supplied technical data identifies tray packaging, 67 I/O pins, and an internal oscillator type.
What is a microcontroller? A microcontroller, or MCU, is a semiconductor device that integrates a processor core, nonvolatile program memory, working RAM, peripherals, and I/O into one package. Within the electronics hierarchy, this CPU12 MCU is a microcontroller, embedded processor, and semiconductor. The MC912DT128ACPV-FR combines general-purpose embedded control with 128 KB flash and 8 KB RAM, allowing firmware, control logic, and peripheral handling to be consolidated into a single device.
Key verified features include a 16-bit central processing unit, 128 KB of flash program memory, 8 KB of RAM, an 8 MHz speed rating, 67 I/O lines, and a 112-LQFP package. Search results also describe two analog-to-digital converters, four PWM channels, two asynchronous serial communications interfaces, timer and capture resources, a light integration module, and key-wakeup interrupt support. These resources make the device suitable for motor, industrial, communications, and embedded control designs where a higher integration level can reduce external component count.
The MC68HC12 architecture is distinct from ARM Cortex-M devices, so software migration is not automatic. Firmware must target the CPU12 instruction set, memory map, interrupt system, and on-chip peripheral registers. Hardware designers must also follow the manufacturer’s 112-pin pin assignment, power, decoupling, clock, and exposed-pad guidance rather than treating it as a generic 112-pin MCU.
Typical applications include industrial control panels, motor-control systems, communications gateways, instrumentation, automotive or transportation control modules, and general embedded products. The 16-bit CPU12 core provides a suitable balance of processing capability and integration for these systems, while the 8 MHz operating speed supports real-time control tasks. The package is large relative to modern mixed-signal MCUs, but it supports numerous I/O and peripheral connections in a surface-mount design.
A key design consideration is that the verified source data does not provide every electrical limit, clock configuration, pin name, and timing parameter. Engineers should consult the original MC68HC12 technical data before final schematic capture, particularly for voltage limits, oscillator options, reset behavior, and peripheral multiplexing. This page combines verified source specifications, sourcing information, and design guidance without filling unknown values by inference.
This data page additionally distinguishes the requested -FR orderable suffix from the base MPN, records distributor sourcing context, and provides a traceable comparison framework for engineers evaluating embedded-control upgrades or replacements.
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