MC912DT128ACPV-FR 16-Bit 8MHz 128KB MCU | NXP
MPN: MC912DT128ACPV-FR ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $23.2076 | $23.21 |
| 10 | $23.2076 | $232.08 |
| 100 | $23.2076 | $2,320.76 |
| 500 | $23.2076 | $11,603.80 |
| 1,000 | $23.2076 | $23,207.60 |
MC912DT128ACPV-FR Overview
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.
Drop-in alternatives for MC912DT128ACPV-FR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC912DT128ACPV-FR (same form factor and footprint) — differing in Package, RAM Size, ADC Channels, ADC Resolution, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC912DT128ACPVE
✅ Drop-In✓ In Stock
$43.76 / Unit
View Datasheet →MC912DG128AVPV-FR
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View Datasheet →MC912D60ACPVE8
✅ Drop-In📋 Reference alternative (not in catalog)
MC912DG128CCPVE
✅ Drop-In📋 Reference alternative (not in catalog)
MC912DG128ACPVE
✅ Drop-In✓ In Stock
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View Datasheet →MC912DT128ACPV-FR Maximum Ratings & Electrical Characteristics
| Product Type | 16-bit microcontroller (MCU) |
| Processor Core | CPU12 |
| CPU Bit Width | 16 bit |
| Maximum Stated Speed | 8 MHz |
| Program Memory Size | 128 KB (128K x 8) |
| Program Memory Type | Flash |
| RAM Size | 8 KB (8K x 8) |
| Number of I/O | 67 |
| Package | 112-LQFP |
| Package Dimensions | 20 mm x 20 mm |
| Oscillator Type | Internal |
| Packaging | Tray |
| Analog-to-Digital Converters | 2 |
| PWM Channels | 4 |
| Asynchronous Serial Communications Interfaces | 2 |
MC912DT128ACPV-FR 20 mm x 20 mm Pin Configuration Guide
Pin configuration for MC912DT128ACPV-FR (20 mm x 20 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MC912DT128ACPV-FR.
Refer to the datasheet for full pin configuration.
Typical Applications
MC912DT128ACPV-FR is suitable for 6 applications: Industrial Embedded Control, Motor and PWM Control, Communications Gateway, Instrumentation and Data Acquisition, Legacy CPU12 Platform Upgrade, Automotive and Transportation Control.
Industrial Embedded Control
MC912DT128ACPV-FR fits legacy and mid-complexity industrial controllers that need a 16-bit CPU12, 128 KB flash, 8 KB RAM, and 67 I/O lines in one device. Its two ADCs can support analog sensor acquisition, while four PWM channels can drive timing or actuator functions. The 8 MHz CPU12 core provides a deterministic processing platform for state machines, sequencing, and supervisory control. Designers should verify voltage limits, temperature range, timing, and EMC requirements in the manufacturer technical data. The 112-LQFP package is larger than modern MCU packages but provides extensive routed connectivity and is practical for a control board with many external signals.
Recommended
Motor and PWM Control
The four PWM channels and 67 I/O lines make MC912DT128ACPV-FR suitable for motor-control auxiliaries, actuator sequencing, and industrial drive support functions. The 16-bit CPU12 can execute control loops at the verified 8 MHz speed, while 128 KB flash stores application code and 8 KB RAM supports state variables and buffers. The two ADCs can monitor feedback or analog conditions when their electrical and multiplexing requirements are satisfied. Exact pin assignment, timer channels, PWM resolution, and external driver timing must be confirmed in the datasheet before schematic capture.
Recommended
Communications Gateway
MC912DT128ACPV-FR can serve as the control processor in a communications gateway or protocol concentrator because the verified data identifies two asynchronous serial communications interfaces. Its 128 KB flash provides room for firmware and protocol tables, while 8 KB RAM can support buffering and state management. The device is appropriate for legacy serial bridges, equipment controllers, and industrial communication hubs where CPU12 software support already exists. Designers must verify electrical levels, connector protection, baud-rate requirements, timing, and whether the two serial interfaces match the system’s physical-layer needs.
Recommended
Instrumentation and Data Acquisition
The two integrated ADCs, 8 MHz CPU12 core, and 67 I/O lines support instrumentation front ends that combine measurement, control, and local processing. An 8 KB RAM block can support sampled-data buffering and working state, while 128 KB flash accommodates firmware and calibration logic. The MCU can coordinate sensors, display or communications interfaces, alarms, and configuration inputs in a single embedded platform. Exact ADC resolution, sample rate, input range, acquisition timing, and channel multiplexing are not included in the verified snippets, so consult the complete technical data before selecting resistor dividers or analog front-end components.
Recommended
Legacy CPU12 Platform Upgrade
MC912DT128ACPV-FR is useful when maintaining a CPU12-based platform requires a device with 128 KB flash, 8 KB RAM, an 8 MHz rating, and a broad 112-pin package. Existing software investments can be preserved more easily than with a migration to a different CPU architecture, particularly when the board already matches the 112-LQFP footprint. The engineering trade-off is ecosystem age: new tools, compilers, documentation, and active component planning may be less convenient than for current 32-bit MCUs. Validate all pin multiplexing, clocking, memory, peripheral, and voltage details before committing to a drop-in claim.
Recommended
Automotive and Transportation Control
The CPU12 architecture, 128 KB flash, 8 KB RAM, serial interfaces, ADCs, and PWM resources can support legacy transportation-control modules where the established software ecosystem is valuable. Four PWM channels may assist actuator and motor functions, while the two ADCs can participate in condition monitoring. Automotive deployment requires explicit qualification evidence, including temperature, voltage, EMC, reliability, and change-control requirements. The supplied data does not state AEC-Q100 status or automotive temperature grade, so this application is conditional rather than an assertion of automotive qualification.
Recommended
Recommended Products Summary
Engineering reference data for MC912DT128ACPV-FR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC912DT128ACPVE | MC912DG128AVPV-FR | MC912D60ACPVE8 | MC912DG128CCPVE | MC912DG128ACPVE |
|---|---|---|---|---|---|---|
| Package | 112-LQFP | 112-LQFP | 112-LQFP | 112-LQFP | 112-LQFP | 112-LQFP |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Processor Architecture | 16-bit CPU12 | 16-bit MCU | 16-bit MCU | 16-bit MCU | 16-bit MCU | 16-bit MCU |
Key Differentiators
- Established 16-bit CPU12 software ecosystem (vs MC912DT128ACPVE)
- High verified integrated memory for a legacy 16-bit control platform (vs MC912DG128AVPV-FR)
- Documented analog and timing resources (vs MC912D60ACPVE8)
Design Notes
Start the layout from the manufacturer’s exact 112-LQFP ACPV package drawing rather than a generic 112-pin library. Confirm pin 1 orientation, lead pitch, body size, and exposed thermal requirements. The verified 20 mm by 20 mm package leaves substantial routing space, but every signal still needs correct pin multiplexing and power-domain review. Keep the footprint and solder mask dimensions under version control.
The retrieved snippets do not provide supply-voltage limits, absolute maximum ratings, or current consumption. Do not select decoupling values or regulator ratings from assumptions. Obtain the original technical data, identify all VDD and VSS pins, implement the required bypass network, and verify startup, reset, brownout, and power-sequencing behavior on the assembled board.
Do not treat a related MC912 family member as interchangeable solely because it is also a 16-bit 112-pin MCU. The supplied comparison sources do not establish complete pinout, memory, clock, voltage, or peripheral equivalence. Compare the exact suffix, package drawing, CPU12 register map, memory size, clock setup, peripheral multiplexing, and software startup code before labeling any candidate a drop-in replacement.
Place input/output and analog-support components close to their associated pins, while routing high-current outputs and switching nodes away from sensitive CPU12 signal paths. The two ADC and four PWM resources are useful, but their exact pin locations and timing requirements are not present in the snippets. Use the complete pinout to define controlled return paths and maintain continuous ground-plane connectivity across the large LQFP footprint.
Compliance Information
The supplied verified snippets do not state compliance status for MC912DT128ACPV-FR. Obtain current manufacturer or authorized-distributor documentation before regulatory or customer qualification.
