MC9S12HZ256CPV - 16-Bit 50MHz 256KB Flash MCU | NXP
MPN: MC9S12HZ256CPV ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.9653 | $18.97 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC9S12HZ256CPV Overview
A microcontroller is a programmable integrated circuit used to monitor inputs, execute embedded software, and control peripherals in an electronic system. The S12 HCS12 family combines a 16-bit CPU core, embedded flash, memory-mapped peripherals, communication interfaces, timers, and interrupt capability. The MC9S12HZ256 family is positioned for industrial embedded-control systems requiring deterministic control, multiple I/O resources, and substantial onboard program storage.
The verified specifications identify a 50MHz operating frequency and 256KB flash organized as 256K x 8. Its 112-LQFP package provides a large, inspectable leaded footprint for applications using through-hole assembly, prototype fabrication, or board-level test access. The industrial temperature grade makes the device suitable for equipment intended to operate beyond consumer-grade environments, subject to the complete datasheet limits.
The MC9S12HZ256 device family is associated with automotive and industrial-control building blocks, including serial communications, timing modules, analog interfaces, and general-purpose digital I/O. Exact pin functions, supply limits, memory maps, peripheral assignments, and electrical timing must be confirmed against the official MC9S12HZ256 datasheet before schematic capture or firmware deployment.
Typical design uses include motor and actuator controllers, industrial communication equipment, sensor hubs, embedded gateways, instrumentation, and automotive sub-systems. Its 50MHz performance provides a balance between control-loop responsiveness, memory capacity, and integrated peripheral functionality rather than acting as a high-performance application processor.
The most important engineering checks are supply voltage, clock configuration, memory programming, interrupt routing, peripheral pin multiplexing, and package-specific decoupling. Because the verified listing calls out an industrial-grade 112-LQFP device, validate thermal margins and soldering assembly requirements against the package drawing and device limits.
This page combines the verified manufacturer datasheet listing with distributor availability data, source traceability, package information, application context, and explicit data gaps. It does not infer electrical limits or peripheral assignments that are not present in the supplied source material.
Drop-in alternatives for MC9S12HZ256CPV — 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 MC9S12HZ256CPV (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Supply Voltage, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S12H256VFVER
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.95 / Unit
View Datasheet →MC9S12H256VFVE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.95 / Unit
View Datasheet →MC9S12DT256CPVE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$20.85 / Unit
View Datasheet →MC9S12XHZ256VAG
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$15.2 / Unit
View Datasheet →MC9S12DT256VPVE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$25.87 / Unit
View Datasheet →MC9S12HZ256CPV Maximum Ratings & Electrical Characteristics
| Product Type | 16-bit S12 HCS12 microcontroller |
| Maximum Operating Frequency | 50 MHz |
| Flash Memory | 256 KB |
| Flash Organization | 256K x 8 |
| CPU Architecture | 16-bit |
| Package | 112-LQFP |
| Package Dimensions | 20 mm x 20 mm |
| Mounting Style | Surface mount |
| Terminal Count | 112 |
| Lead Form | Gull wing |
| Temperature Grade | Industrial |
| Manufacturer | Freescale Semiconductor / NXP Semiconductors |
| Core Family | S12 HCS12 |
| Programming Memory Type | Flash |
MC9S12HZ256CPV 20 mm x 20 mm Pin Configuration Guide
Pin configuration for MC9S12HZ256CPV (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 MC9S12HZ256CPV.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S12HZ256CPV is suitable for 6 applications: Industrial Embedded Controller, Motor and Actuator Control, Sensor Hub and Instrumentation, Industrial Communication Gateway, Automotive Sub-System Controller, Educational and Legacy Platform Upgrade.
Industrial Embedded Controller
The MC9S12HZ256CPV fits an industrial embedded controller that needs a 50MHz 16-bit control CPU and 256KB of onboard flash. The MCU can execute state-machine logic, coordinate digital inputs, and supervise external sensors or actuators while retaining program storage on the same device. Its industrial temperature classification is useful for equipment operating outside consumer environments. Before finalizing the design, verify the exact operating-temperature limits, supply rails, GPIO count, timer channels, communication ports, and analog resources in the MC9S12HZ256 datasheet.
Recommended
Motor and Actuator Control
The 50MHz S12 CPU can serve as the supervisory controller in a motor or actuator subsystem, where deterministic control software must coordinate commands, feedback, fault states, and external power stages. The 256KB flash capacity provides room for control algorithms and communication handlers, while the 112-LQFP package exposes many signal pins for external gate drivers, position sensors, and protection circuits. Confirm timer, PWM, capture/compare, analog-input, and interrupt capabilities in the official datasheet before assigning the MCU to a safety- or timing-critical loop.
Recommended
Sensor Hub and Instrumentation
The MC9S12HZ256CPV is appropriate for a sensor hub that gathers inputs, performs local filtering, and forwards measurements over an industrial interface. Its 16-bit architecture and 50MHz operating frequency provide useful computational headroom for sampling routines, calibration tables, and protocol handling, while 256KB flash supports embedded firmware and configuration. The verified excerpt does not list the exact ADC, timer, serial, or communication resources, so the design should begin with peripheral-level verification rather than assuming a particular sensor interface is present.
Recommended
Industrial Communication Gateway
Use the MC9S12HZ256CPV as the local control processor in a communication gateway when the system needs embedded protocol management, event logging, and supervisory I/O. The 256KB flash and 50MHz performance can support fixed firmware alongside buffering or routing logic, subject to the available peripheral set. The verified data does not identify Ethernet, CAN, SCI, or other communication counts, so interface selection must be confirmed against the manufacturer datasheet. The 112-LQFP package also requires careful planning for connector routing and signal integrity.
Recommended
Automotive Sub-System Controller
The MC9S12HZ256CPV can be evaluated for a non-safety-critical automotive sub-system because the verified listing identifies an industrial-grade S12 HCS12 MCU with 256KB flash and a 50MHz CPU. It may support body, chassis, or peripheral-control functions where the required peripherals and automotive qualification are confirmed. Industrial temperature grade alone does not establish AEC-Q100 qualification, functional-safety compliance, or suitability for a particular vehicle platform. Obtain the exact device qualification and all electrical limits before using it in automotive production.
Recommended
Educational and Legacy Platform Upgrade
The MC9S12HZ256CPV is suitable for maintaining or reproducing an existing S12 HCS12 design, including educational boards and legacy industrial equipment, provided the original firmware and peripheral assignments are available. The 256KB flash and 50MHz CPU match the verified device identity, while the 112-LQFP package can simplify compatibility with older leaded prototype boards. Do not substitute a related MC9S12 part solely by family name: compare the exact package pinout, reset and clock architecture, memory map, peripheral modules, and software assumptions before releasing a replacement.
Recommended
Recommended Products Summary
Engineering reference data for MC9S12HZ256CPV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S12H256VFVER | MC9S12H256VFVE | MC9S12DT256CPVE | MC9S12XHZ256VAG | MC9S12DT256VPVE |
|---|---|---|---|---|---|---|
| Package | 112-LQFP (20x20 mm) | 112-LQFP (20x20 mm) - package compatibility not verified | 112-LQFP (20x20 mm) - package compatibility not verified | 112-LQFP (20x20 mm) - package compatibility not verified | 112-LQFP (20x20 mm) - package compatibility not verified | 112-LQFP (20x20 mm) - package compatibility not verified |
| Brand | NXP Semiconductors | Freescale Semiconductor | Freescale Semiconductor | Freescale Semiconductor | Freescale Semiconductor | Freescale Semiconductor |
| Product Type | 16-bit S12 HCS12 microcontroller | S12-family microcontroller - exact family specification not verified | S12-family microcontroller - exact family specification not verified | S12-family microcontroller - exact family specification not verified | S12-family microcontroller - exact family specification not verified | S12-family microcontroller - exact family specification not verified |
Key Differentiators
- Verified 50MHz operating frequency (vs MC9S12H256VFVER)
- Verified 256KB flash organization (vs MC9S12DT256CPVE)
- Verified industrial-grade listing (vs MC9S12XHZ256VAG)
- Verified 112-LQFP 20mm x 20mm package (vs MC9S12H256VFVE)
Design Notes
Do not treat a related MC9S12 part number as a drop-in replacement without comparing the exact CPV pinout and package drawing. The verified source confirms a 112-LQFP device but does not provide its complete pin table, so schematic design must begin with the official MC9S12HZ256V2 datasheet. Check power, ground, reset, clock, debug, and unused-pin requirements before layout release.
Place required decoupling and clock-support components according to the manufacturer reference layout and the specific peripheral configuration. Because the supplied data does not state the supply voltage, decoupling capacitance, oscillator requirements, or pin assignments, do not guess component values. Keep high-current and switching-node copper away from sensitive clock and debug routes, and preserve the package's gull-wing lead inspection access.
Use the exact operating-temperature and package thermal data from the MC9S12HZ256 datasheet before defining the enclosure or airflow requirement. The verified source confirms an industrial temperature grade but not its numeric limits or thermal resistance. Estimate dissipation only after the actual clock rate, supply voltage, peripheral loading, and board construction are known; validate the result with a thermal prototype.
Compliance Information
The supplied verified data does not provide current RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for MC9S12HZ256CPV. Obtain current compliance documentation for the exact orderable MPN and package from NXP or an authorized distributor.
