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NXP Semiconductors MC9S12C128CPBER
- Part No.:
- MC9S12C128CPBER
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
MC9S12C128CPBER.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 52TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,415
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Product details
Overview
MC9S12C128CPBER from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 128 KB on-chip Flash, 8 KB RAM, and integrated CAN 2.0A/B controller, PWM, 10-bit 8-channel ADC, and BDM debug interface. It operates at up to 25 MHz core frequency with internal PLL, supports automotive-grade temperature range (–40°C to +85°C), and targets engine control, body electronics, and industrial motor management.
For engineers reviewing the MC9S12C128CPBER datasheet, MC9S12C128CPBER pinout, MC9S12C128CPBER application, or MC9S12C128CPBER equivalent, key selection criteria include CAN bus integration, Flash endurance (10K write/erase cycles), BDM-based in-circuit debugging, and compatibility with legacy S12 toolchains and CodeWarrior IDE.
Technical Context
The MC9S12C128CPBER implements the S12 CPU core with 16-bit data path, Harvard architecture, and 24-bit addressing. It integrates a scalable CAN controller (S12MSCANV2) supporting both standard and extended frames, with dedicated message buffers and automatic retransmission.
Its clock system includes a PLL with programmable multiplication factor (1×–32×), selectable oscillator modes (crystal/resonator/external clock), and multiple low-power stop/wait modes. The device uses a dual-voltage regulator (VREG3V3V2) to generate internal 3.3 V from 5 V supply, enabling mixed-signal operation with analog peripherals like ATD10B8C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit address bus - enables access to full 16 MB memory space for complex firmware and data tables. |
| Flash Memory | 128 KB on-chip Flash (S12FTS128K1V1) - supports in-application programming and 10K erase/write cycles for field updates. |
| RAM | 8 KB on-chip RAM - sufficient for real-time control stacks, CAN message buffers, and PID algorithm variables. |
| CAN Interface | Scalable Controller Area Network (S12MSCANV2) - fully compliant with ISO 11898-1, supports 1 Mbit/s and automatic baud rate detection. |
| ADC | 10-bit 8-channel Analog-to-Digital Converter (ATD10B8C) - provides 12 µs conversion time per channel with configurable sample-and-hold. |
| Debug Interface | Background Debug Module (BDMV4) - single-wire serial interface for non-intrusive flash programming and breakpoint debugging. |
| Operating Voltage | 5.0 V ±10% - compatible with automotive battery-supplied systems and eliminates need for external level-shifting. |
| Temperature Range | –40°C to +85°C - qualified for under-hood automotive applications and industrial environments. |
Pinout & Package
MC9S12C128CPBER is housed in an 80-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow the PIM9C32 port integration module layout, supporting multiplexed I/O, CAN differential signaling (CANH/CANL), and BDM serial debug (BKGD).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power Supply / Ground | Dual 5 V supply domains (VDD1/VDD2) with separate ground returns (VSS1/VSS2) reduce noise coupling between digital and analog sections. |
| BKGD | Background Debug | Single-wire bidirectional serial interface for flash programming, register read/write, and real-time halt/resume control. |
| CANH, CANL | CAN Bus Differential Pair | Direct connection to ISO 11898-compliant transceiver; internal pull-ups enable bus-off recovery without external components. |
| RESET | Active-Low Reset Input | Asynchronous reset with internal pull-up; debounced by CRGV4 clock monitor to prevent spurious resets during power transients. |
| XTAL, EXTAL | Crystal Oscillator Inputs | Supports 4–8 MHz fundamental-mode crystals; internal oscillator circuit eliminates need for external capacitors in basic configurations. |
| PORT A–E, PORT P, PORT T | Multiplexed GPIO / Peripheral Signals | Configurable as general-purpose I/O or dedicated functions (PWM, SCI, SPI, ADC triggers) via MODRR and PIM registers. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN 2.0A/B Controller | Hardware message filtering, 15 message buffers, and automatic retransmission reduce CPU overhead in multi-node networks. |
| On-Chip Voltage Regulator | VREG3V3V2 generates stable 3.3 V for internal logic and analog blocks from 5 V supply - simplifies power design and improves noise immunity. |
| Background Debug Module (BDM) | Enables full-speed debugging without ICE hardware; supports flash erase/program, memory inspection, and real-time trace via BKGD pin. |
| Programmable PLL Clock Generator | Configurable multiplication factor (1×–32×) and prescaler allow precise core clock derivation (e.g., 25 MHz from 4 MHz crystal) for timing-critical control loops. |
| 10-Bit 8-Channel ADC with Trigger Flexibility | Supports software, timer, or CAN-triggered conversions - enables synchronized sampling across sensors in closed-loop motor control. |
| Memory Protection and Security | Flash security byte prevents unauthorized read-out; COP watchdog and clock monitor ensure fail-safe behavior in safety-critical automotive functions. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time monitoring of throttle position, coolant temperature, and oxygen sensor signals in gasoline engine management. IC Role / Device Role / Timing Role: Primary MCU executing fuel injection timing, spark advance calculation, and CAN-based OBD-II diagnostics. Use Value: Integrated 10-bit ADC with hardware trigger synchronization ensures sub-millisecond sampling alignment across critical sensors. |
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: CAN node managing distributed actuator commands and status reporting across LIN sub-networks. Use Value: On-chip CAN controller with 15 message buffers handles concurrent diagnostic, comfort, and safety messaging without external ASIC. |
| Industrial Motor Drive | Off-Highway Vehicle Telematics |
|
Use Scenario: Closed-loop speed and torque control of 3-phase BLDC motors using Hall-effect feedback and PWM outputs. IC Role / Device Role / Timing Role: Real-time controller generating complementary PWM waveforms with dead-time insertion and fault shutdown. Use Value: Dedicated PWM8B6CV1 module with independent channel control and emergency stop input enables safe, responsive motor actuation. |
Use Scenario: Data aggregation and wireless transmission of GPS, engine health, and payload metrics from construction or agricultural equipment. IC Role / Device Role / Timing Role: Edge node interfacing GPS module (SCI), CAN bus (engine/J1939), and cellular modem (SPI). Use Value: Dual serial interfaces (SCI + SPI) and 128 KB Flash support firmware-over-the-air (FOTA) updates and logging buffer persistence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512 | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM, dual CAN, higher max frequency (50 MHz) | Required for high-throughput J1939 gateway or complex real-time signal processing | Select when >128 KB Flash, dual CAN, or deterministic offload processing is needed; not pin-compatible. |
| S912XEQ512J2 | Same S12X core but with EEPROM, enhanced BDM, and updated qualification (AEC-Q100 Grade 1) | Preferred for new designs requiring extended data retention or stricter automotive compliance | Choose for new automotive programs needing EEPROM-backed calibration storage and full AEC-Q100 validation. |
Compared with MC9S12C128CPBER, MC9S12XDP512 delivers significantly higher compute throughput and memory capacity for next-generation gateways, while S912XEQ512J2 offers production-ready automotive qualification and nonvolatile parameter storage - both require PCB redesign due to different pinouts and package types.
Availability
MC9S12C128CPBER is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and industrial motor drives requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for MC9S12C128CPBER 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 MC9S12C family was designed specifically for cost-sensitive, high-reliability automotive control applications - emphasizing CAN integration, robust flash memory, and BDM-based development efficiency.
FAQ
What is the maximum operating frequency of the MC9S12C128CPBER?
The MC9S12C128CPBER achieves a maximum core frequency of 25 MHz using its internal PLL, which can multiply an external crystal (e.g., 4 MHz) by factors up to 32×. This frequency is sustained across the full –40°C to +85°C temperature range and 4.5 V–5.5 V supply voltage, enabling deterministic execution of real-time control algorithms in automotive environments.
Does the MC9S12C128CPBER support in-circuit debugging without additional hardware?
Yes, the MC9S12C128CPBER includes a Background Debug Module (BDMV4) that enables full in-circuit debugging via a single BKGD pin. Using standard BDM firmware commands, engineers can perform flash programming, register inspection, breakpoint setting, and real-time execution control without ICE hardware or JTAG adapters - directly supported by CodeWarrior IDE.
How many CAN message buffers does the MC9S12C128CPBER provide?
The MC9S12C128CPBER integrates the S12MSCANV2 module with 15 dedicated message buffers, each configurable for transmit or receive, standard or extended ID, and individual acceptance filtering. This allows concurrent handling of multiple CAN identifiers and prioritized message scheduling without CPU intervention.
Is the MC9S12C128CPBER qualified for automotive applications?
Yes, the MC9S12C128CPBER is manufactured and tested to meet automotive quality standards, including operation over the –40°C to +85°C ambient temperature range and qualification per AEC-Q100 stress test requirements. Its integrated voltage regulator, clock monitor, and COP watchdog support functional safety goals in ASIL-B–capable systems.
What analog peripherals are integrated into the MC9S12C128CPBER?
The MC9S12C128CPBER integrates the ATD10B8C - a 10-bit, 8-channel analog-to-digital converter with programmable sample-and-hold, configurable conversion sequences, and hardware triggering from timers or CAN events. It also includes dedicated analog supply pins (VDDA/VSSA) and reference voltage inputs (VRH/VRL) for precision measurement.
MC9S12C128CPBER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 52-LQFP
- Series:
- HCS12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- CANbus, EBI/EMI, SCI, SPI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 35
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12C128CPBER FAQ
1.How can I place an order for MC9S12C128CPBER through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C128CPBER 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 MC9S12C128CPBER reliable?
The price and inventory of MC9S12C128CPBER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C128CPBER is usually 5 days.
3.What payment methods are accepted for MC9S12C128CPBER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12C128CPBER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12C128CPBER?
MC9S12C128CPBER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12C128CPBER 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 MC9S12C128CPBER?
For technical support, including MC9S12C128CPBER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C128CPBER requirements.
6.How does Aetrix verify that MC9S12C128CPBER is sourced from the original manufacturer or authorized distributors?
All MC9S12C128CPBER 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 MC9S12C128CPBER meets industry standards.
7.What is the process for return or replacement of MC9S12C128CPBER?
All MC9S12C128CPBER units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C128CPBER, 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 MC9S12C128CPBER part is unused and in its original packaging.
Return procedure for MC9S12C128CPBER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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