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NXP Semiconductors MC9S12E256VPVE
- Part No.:
- MC9S12E256VPVE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
MC9S12E256VPVE.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,982
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Product details
Overview
MC9S12E256VPVE from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 256 KB on-chip Flash, 12 KB RAM, and integrated peripherals including 16-channel 10-bit ATD, dual 8-bit DACs, 8-channel PWM, SPI, I²C, three SCI modules, and a PLL-based clock system. It operates at up to 25 MHz core frequency with internal 3.3 V voltage regulator and supports automotive-grade temperature range (–40°C to +105°C).
For engineers reviewing the MC9S12E256VPVE datasheet, MC9S12E256VPVE pinout, MC9S12E256VPVE application, or MC9S12E256VPVE equivalent, this device is selected for embedded control in engine management, body electronics, and industrial motor control where deterministic real-time response, flash reprogrammability, and mixed-signal integration are required.
Technical Context
The MC9S12E256VPVE implements the HCS12 CPU12 core with 16-bit data path and 24-bit addressing, executing instructions from on-chip Flash via a 2-stage pipeline. Its memory subsystem includes 256 KB Flash (with block protection and background debug), 12 KB RAM, and 2 KB EEPROM emulation via Flash.
Peripherals are tightly coupled via the Module Mapping Control (MMC) and Multiplexed External Bus Interface (MEBI). The Clocks and Reset Generator (CRG) provides PLL multiplication (×1–×32), multiple clock sources (crystal, external clock, RC), and failsafe monitoring via Clock Monitor and COP watchdog.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU12 with 24-bit address bus and 2-stage pipeline |
| Flash Memory | 256 KB on-chip Flash with 1K block erase, 2K program, and background debug support |
| RAM | 12 KB on-chip RAM with wait-state-free access at full speed |
| ADC | 16-channel 10-bit ATD with 8 µs conversion time, configurable sample-and-hold, and external trigger inputs |
| DAC | Dual 8-bit DACs (DAO1/DAO2) with independent output buffers and reference input pins (VREF/VRL) |
| PWM | 8-channel 8-bit PWM module with fault protection (PMF), dead-time insertion, and center-aligned modes |
| Operating Voltage | 4.5–5.5 V supply for logic and I/O; internal 3.3 V regulator powers core and analog blocks |
| Temperature Range | –40°C to +105°C ambient, qualified for automotive under AEC-Q100 Grade 2 |
Pinout & Package
MC9S12E256VPVE is housed in a 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) package with exposed thermal pad. Pin functions are multiplexed across 10 I/O ports (A, B, D, E, K, M, P, Q, S, T, U), supporting flexible peripheral mapping and external bus expansion.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDX / VSSX | I/O Power / Ground | Separate 5 V supply and ground for digital I/O drivers to isolate noise from core logic |
| VDDR / VSSR | Regulator Input / Ground | Input to internal 3.3 V regulator; VSSR is dedicated ground for regulator feedback and stability |
| VDDA / VSSA | Analog Supply / Ground | Isolated 5 V and ground for ATD, DAC, and voltage regulator reference circuitry to minimize quantization noise |
| VRH / VRL | ATD Reference Inputs | High- and low-side reference voltages for ADC; support ratiometric or absolute measurement configurations |
| EXTAL / XTAL | Crystal Oscillator Terminals | Drive fundamental-mode quartz crystal (1–8 MHz); enable low-jitter clock source for PLL input |
| XFC | PLL Loop Filter | Analog filter node connecting external RC network to stabilize PLL lock and reduce jitter on generated clocks |
| BKGD | Background Debug | Single-wire interface for non-intrusive debugging, flash programming, and real-time register inspection |
| RESET | Active-Low Reset Input | Asynchronous reset pin with internal pull-up; triggers power-on, low-voltage, and watchdog resets |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Voltage Regulator | Integrated 3.3 V regulator supplies core logic and analog blocks, eliminating need for external LDO in most designs |
| Background Debug Module (BDM) | Enables in-circuit flash programming and real-time debugging without halting CPU operation or requiring JTAG hardware |
| Multiplexed External Bus Interface (MEBI) | Supports 8/16-bit external memory expansion up to 1 MB address space with programmable wait states and burst mode |
| Security Protection | Flash security lock prevents unauthorized read-out; backdoor key access allows recovery without chip erasure |
| Low-Power Modes | Four modes (Run, Wait, Pseudo-Stop, Stop) with configurable wake-up sources including IRQ, RTI, and port interrupts |
| Peripheral Integration | Combines ATD, DAC, PWM, SCI, SPI, and I²C on single die-reducing BOM count and PCB area in cost-sensitive control systems |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time acquisition of throttle position, coolant temperature, and oxygen sensor signals; closed-loop fuel injection timing and spark advance calculation. IC Role / Device Role / Timing Role: Primary controller executing deterministic control algorithms with sub-millisecond interrupt latency and synchronized PWM outputs for injector drivers. Use Value: Integrated 16-channel ATD and dual DACs eliminate external signal conditioning ICs; Flash endurance supports field updates over vehicle lifetime. |
Use Scenario: Centralized management of door locks, window lifts, lighting dimming, and HVAC fan speed in passenger vehicles. IC Role / Device Role / Timing Role: Mixed-signal hub interfacing with analog sensors (potentiometers, thermistors), driving PWM-controlled motors and relays, and communicating via LIN or CAN (via external transceiver). Use Value: On-chip 3.3 V regulator and wide temperature range ensure reliable operation in unregulated vehicle battery environments (-12 V to +16 V transients). |
| Industrial Motor Drive | Medical Infusion Pump |
Use Scenario: Closed-loop speed and current control of BLDC motors using Hall-effect feedback and current-sense ADC inputs. IC Role / Device Role / Timing Role: Real-time execution of FOC or trapezoidal commutation algorithms with precise 8-channel PWM generation and fault shutdown via PMF module. Use Value: Hardware fault protection (FAULT[3:0] inputs) enables immediate PWM disable on overcurrent or thermal events-meeting IEC 61800-5-2 functional safety requirements. |
Use Scenario: Precise volumetric delivery control using stepper motor positioning, pressure sensing, and flow rate feedback. IC Role / Device Role / Timing Role: Safety-critical controller managing analog pressure transducer inputs, DAC-driven valve actuation, and real-time alarm generation via SCI UART. Use Value: Flash security and BDM debug capability support FDA-required traceability and firmware validation; AEC-Q100 qualification ensures long-term supply stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S912XEQ512J2MAG | Enhanced HCS12X core (25 MHz), 512 KB Flash, 32 KB RAM, added XGATE coprocessor for offloading ISR tasks | Higher performance and memory for complex control loops; requires updated toolchain and board layout | Select when migrating legacy MC9S12E256VPVE designs needing >256 KB code space or deterministic ISR offload |
| MC9S12XEP100MAL | HCS12X core, 1 MB Flash, 64 KB RAM, enhanced PWM (16 channels), CAN 2.0B controller integrated on-die | Native CAN support eliminates external transceiver; larger memory enables OTA update partitioning | Choose for new designs requiring CAN bus connectivity and future-proof memory headroom without external bus expansion |
Compared with MC9S12E256VPVE, S912XEQ512J2MAG delivers higher compute throughput via XGATE acceleration but increases BOM cost and design complexity, while MC9S12XEP100MAL adds native CAN and doubles Flash-making it suitable for next-generation automotive nodes where bus integration and firmware scalability are critical.
Availability
MC9S12E256VPVE is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and industrial motor drives requiring stable component supply, long lifecycle support, and automotive-grade reliability.
Supply support for MC9S12E256VPVE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The MC9S12E256VPVE belongs to NXP's legacy HCS12 family, designed specifically for cost-sensitive, high-reliability embedded control in automotive powertrain and chassis systems where Flash programmability and mixed-signal integration are essential.
FAQ
What is the maximum operating frequency of the MC9S12E256VPVE?
The MC9S12E256VPVE achieves a maximum core frequency of 25 MHz using its internal PLL, which multiplies an external crystal (1–8 MHz) or oscillator input. This frequency is sustained across the full –40°C to +105°C temperature range and 4.5–5.5 V supply, enabling deterministic real-time control in demanding automotive environments.
Does the MC9S12E256VPVE include a built-in CAN controller?
No, the MC9S12E256VPVE does not integrate a CAN controller. It supports serial communication via three SCI modules (UART), SPI, and I²C. CAN functionality requires an external CAN transceiver connected to an SCI channel, or migration to an HCS12X variant like MC9S12XEP100MAL that includes native CAN 2.0B support.
How is flash programming performed on the MC9S12E256VPVE?
Flash programming on the MC9S12E256VPVE is performed via the Background Debug Module (BDM) using a single-wire interface. The BDM enables in-system programming without removing the device, supports full flash erase/write/verify cycles, and allows secure firmware updates through protected command sequences defined in the Flash Module specification.
What analog features are integrated into the MC9S12E256VPVE?
The MC9S12E256VPVE integrates a 16-channel 10-bit Analog-to-Digital Converter (ATD) with configurable sample-and-hold and external trigger inputs, plus two independent 8-bit Digital-to-Analog Converters (DACs) with buffered outputs and dedicated reference pins (VREF/VRL). These are powered by isolated analog supplies (VDDA/VSSA) to ensure precision.
Is the MC9S12E256VPVE pin-compatible with other HCS12 devices?
The MC9S12E256VPVE uses a unique 112-pin LQFP package and is not pin-compatible with other HCS12 variants such as MC9S12DG128 or MC9S12DP512. Pin assignments, peripheral mappings, and power domain routing differ significantly-even within the E-series-requiring dedicated PCB layout for each part number.
MC9S12E256VPVE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HCS12
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- EBI/EMI, I2C, SCI, SPI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 91
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 2.75V
- Data Converters:
- A/D 16x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12E256VPVE FAQ
1.How can I place an order for MC9S12E256VPVE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12E256VPVE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC9S12E256VPVE reliable?
The price and inventory of MC9S12E256VPVE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12E256VPVE is usually 5 days.
3.What payment methods are accepted for MC9S12E256VPVE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12E256VPVE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12E256VPVE?
MC9S12E256VPVE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12E256VPVE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC9S12E256VPVE?
For technical support, including MC9S12E256VPVE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12E256VPVE requirements.
6.How does Aetrix verify that MC9S12E256VPVE is sourced from the original manufacturer or authorized distributors?
All MC9S12E256VPVE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC9S12E256VPVE meets industry standards.
7.What is the process for return or replacement of MC9S12E256VPVE?
All MC9S12E256VPVE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12E256VPVE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC9S12E256VPVE part is unused and in its original packaging.
Return procedure for MC9S12E256VPVE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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