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NXP Semiconductors MC9S12C128MPBE
- Part No.:
- MC9S12C128MPBE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
MC9S12C128MPBE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 52TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,237
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Product details
Overview
MC9S12C128MPBE from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 128 KB on-chip Flash, 8 KB RAM, and integrated CAN 2.0B controller, PWM, 10-bit 8-channel ADC, and BDM debug interface. It operates at up to 25 MHz core frequency with 5V tolerant I/O and supports automotive-grade temperature range (−40°C to +125°C). It is used in engine control units, body electronics, and industrial motor controllers requiring deterministic real-time response.
For engineers reviewing the MC9S12C128MPBE datasheet, MC9S12C128MPBE pinout, MC9S12C128MPBE application, or MC9S12C128MPBE equivalent, key selection criteria include its 80-pin LQFP package, 128 KB Flash with EEPROM emulation, S12 CPU core compatibility, and integrated MSCAN module for robust vehicle network communication.
Technical Context
The MC9S12C128MPBE implements the S12 CPU core with 16-bit data/24-bit address bus, supporting byte- and word-aligned memory access. Its memory map includes paged Flash (128 KB), linear RAM (8 KB), and register-mapped peripherals including TIM16B8C timer, ATD10B8C ADC, and S12MSCANV2 CAN controller.
It integrates a PLL-based clock system (CRGV4) with selectable oscillator modes (crystal/resonator), programmable prescalers, and multiple low-power modes (WAIT/STOP). The device uses a single-wire Background Debug Module (BDMV4) for non-intrusive debugging and flash programming without halting real-time operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit addressing and 16-MHz–25-MHz configurable bus speed |
| Flash Memory | 128 KB on-chip Flash with EEPROM emulation, sector erase, and 10K write/erase cycles |
| RAM | 8 KB on-chip SRAM, fully accessible during all operating modes including WAIT |
| ADC | 10-bit, 8-channel analog-to-digital converter with 8 µs conversion time and external trigger support |
| CAN Interface | Scalable Controller Area Network (S12MSCANV2) compliant with ISO 11898-1, supporting CAN 2.0B protocol |
| Package | 80-pin LQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, automotive-grade moisture sensitivity level MSL3 |
| Operating Temperature | −40°C to +125°C ambient, qualified per AEC-Q100 Grade 1 for automotive applications |
Pinout & Package
MC9S12C128MPBE is housed in an 80-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad, optimized for automotive PCB layouts requiring thermal reliability and EMI resilience. Pin assignments follow the standard HCS12 80-pin bond-out configuration defined in Chapter 1.3.1 of the MC9S12C Family Reference Manual (Rev 01.24).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5V power domains: VDD1/VSS1 for core logic, VDD2/VSS2 for I/O - enables noise isolation between digital and peripheral sections |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates hardware reset sequence including register initialization and Flash boot vector fetch |
| BKGD | Background debug serial interface | Single-wire bidirectional BDM interface for flash programming, breakpoint insertion, and real-time register inspection without CPU halt |
| TXD0/RXD0 | SCI0 serial communication | Full-duplex UART interface supporting asynchronous communication at up to 1 Mbps; used for bootloader and diagnostic messaging |
| CANH/CANL | CAN transceiver differential pair | Direct connection to external CAN physical layer (e.g., TJA1042); supports high-speed CAN up to 1 Mbps with built-in error handling and message buffering |
| AD0–AD7 | Analog input channels | Eight dedicated analog inputs shared with Port AD pins; support simultaneous sampling and configurable conversion sequences via ATDCTL registers |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with EEPROM emulation | Enables field firmware updates and nonvolatile parameter storage without external EEPROM, reducing BOM cost and board space |
| Integrated MSCAN module | Hardware-accelerated CAN 2.0B message filtering, transmission queuing, and error confinement - eliminates need for external CAN controller |
| Background Debug Module (BDM) | Allows full debug visibility and flash reprogramming using only one pin (BKGD), simplifying production test and field service workflows |
| 10-bit 8-channel ADC with external trigger | Supports synchronized sampling across multiple sensors (e.g., throttle position, coolant temp, O2) for closed-loop engine control timing accuracy |
| Multiple low-power modes (WAIT/STOP) | Reduces current consumption to <10 µA in STOP mode while retaining RAM content and wake-on-interrupt capability for battery-sensitive applications |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time management of fuel injection timing, spark advance, and air-fuel ratio feedback using sensor inputs and actuator outputs. IC Role / Device Role / Timing Role: Primary control MCU executing deterministic control loops at ≤10 ms intervals with interrupt-driven ADC sampling and CAN-based diagnostics. Use Value: Integrated MSCAN and 128 KB Flash enable seamless integration into vehicle networks and support for complex calibration tables and over-the-air update readiness. |
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC functions in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator managing multi-sensor inputs (switches, ambient light, temperature) and driving relay/LED outputs via PWM and GPIO. Use Value: 80-pin LQFP provides sufficient I/O count for discrete control signals, while 8 KB RAM supports multitask state machine execution without external memory. |
| Industrial Motor Drive | Off-Highway Vehicle Telematics |
|
Use Scenario: Closed-loop speed/torque control of 3-phase BLDC motors in pumps, compressors, and conveyors. IC Role / Device Role / Timing Role: Real-time motion controller interfacing with Hall-effect sensors, generating complementary PWM outputs with dead-time insertion via PWM8B6CV1 module. Use Value: Deterministic 25 MHz bus speed ensures sub-microsecond timer resolution for precise commutation timing and fault response within 2 µs. |
Use Scenario: Data aggregation and wireless transmission of engine health, GPS location, and operational metrics from construction or agricultural equipment. IC Role / Device Role / Timing Role: Edge node processor collecting CAN bus data, performing basic diagnostics, and formatting payloads for cellular or LoRaWAN modems. Use Value: −40°C to +125°C rating and AEC-Q100 qualification ensure reliable operation in harsh outdoor environments with wide thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512 | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM, dual CAN, LIN support - larger footprint (112-pin MAPBGA) | Higher integration for advanced powertrain or gateway ECUs requiring parallel processing and expanded connectivity | Select when needing >128 KB Flash, LIN compliance, or offloading time-critical tasks from main CPU via XGATE |
| S912XEQ512J2 | NXP's pin-compatible successor with enhanced EEPROM, improved ADC linearity, and updated BDMv5 protocol - same 80-pin LQFP | Drop-in replacement path for legacy MC9S12C designs requiring extended lifecycle support and minor performance uplift | Choose for new designs targeting long-term availability and marginally improved analog accuracy (±1 LSB INL vs ±2 LSB) |
Compared with MC9S12C128MPBE, the MC9S12XDP512 offers scalable compute headroom for future feature expansion, while the S912XEQ512J2 delivers direct migration with identical pinout and enhanced analog precision-making it ideal for sustaining engineering where PCB reuse is critical.
Availability
MC9S12C128MPBE is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and industrial motor drives requiring stable component supply, automotive qualification, and long-term production continuity.
Supply support for MC9S12C128MPBE 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 markets, with deep heritage in microcontroller innovation dating to the Motorola 6800 family.
The MC9S12C128MPBE belongs to the HCS12 family, designed specifically for cost-sensitive, high-reliability automotive applications where deterministic real-time performance, CAN integration, and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum operating frequency of the MC9S12C128MPBE?
The MC9S12C128MPBE supports a maximum core bus frequency of 25 MHz, achieved via its internal PLL circuit configured from an external crystal or resonator (typically 4–8 MHz). This frequency determines instruction execution speed, timer resolution, and peripheral throughput - all critical for real-time engine control loops. The MC9S12C128MPBE maintains timing integrity across its full −40°C to +125°C operating range.
Does the MC9S12C128MPBE include a hardware CAN controller?
Yes, the MC9S12C128MPBE integrates the S12MSCANV2 module - a full-featured, silicon-hardened CAN 2.0B controller compliant with ISO 11898-1. It supports bit rates up to 1 Mbps, 15 message buffers with flexible ID filtering, and automatic retransmission. This eliminates the need for external CAN transceivers beyond the physical layer (e.g., TJA1042), reducing system complexity and bill-of-materials cost.
How is flash programming performed on the MC9S12C128MPBE?
Flash programming on the MC9S12C128MPBE is performed via its Background Debug Module (BDMV4) using a single BKGD pin and standard Freescale BDM protocol. No external programmer is required - host tools like P&E Multilink or Segger J-Link (with BDM firmware) can erase, program, and verify the 128 KB Flash in-system. The MC9S12C128MPBE also supports in-application programming (IAP) for field firmware updates.
What is the ADC resolution and channel count of the MC9S12C128MPBE?
The MC9S12C128MPBE features an ATD10B8C analog-to-digital converter with 10-bit resolution and eight input channels (AN0–AN7). Conversion time is 8 µs per sample under typical conditions, and the module supports both software- and hardware-triggered conversions (e.g., via timer overflow or external event). Input voltage range is 0–5 V, compatible with standard automotive sensor outputs.
Is the MC9S12C128MPBE qualified for automotive use?
Yes, the MC9S12C128MPBE is AEC-Q100 Grade 1 qualified (−40°C to +125°C), manufactured in IATF 16949-certified facilities, and designed to meet stringent automotive reliability standards including HTOL, ESD, and EMC requirements. Its 80-pin LQFP package is rated MSL3 and specified for use in engine compartments, chassis modules, and other demanding vehicle subsystems.
MC9S12C128MPBE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 52-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12C128MPBE FAQ
1.How can I place an order for MC9S12C128MPBE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C128MPBE 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 MC9S12C128MPBE reliable?
The price and inventory of MC9S12C128MPBE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C128MPBE is usually 5 days.
3.What payment methods are accepted for MC9S12C128MPBE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12C128MPBE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12C128MPBE?
MC9S12C128MPBE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12C128MPBE 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 MC9S12C128MPBE?
For technical support, including MC9S12C128MPBE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C128MPBE requirements.
6.How does Aetrix verify that MC9S12C128MPBE is sourced from the original manufacturer or authorized distributors?
All MC9S12C128MPBE 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 MC9S12C128MPBE meets industry standards.
7.What is the process for return or replacement of MC9S12C128MPBE?
All MC9S12C128MPBE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C128MPBE, 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 MC9S12C128MPBE part is unused and in its original packaging.
Return procedure for MC9S12C128MPBE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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