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NXP Semiconductors MC9S12XS64CAE
- Part No.:
- MC9S12XS64CAE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MC9S12XS64CAE.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,168
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Product details
Overview
MC9S12XS64CAE from NXP (formerly Freescale) is a 16-bit HCS12X-based automotive microcontroller featuring 64 KB on-chip flash memory, 4 KB RAM, and integrated CAN 2.0B controller. It operates at up to 40 MHz core frequency with 5.5–5.25 V supply range and supports enhanced BDM debug interface. It targets engine control units, body electronics, and chassis modules requiring deterministic real-time response.
For engineers reviewing the MC9S12XS64CAE datasheet, MC9S12XS64CAE pinout, MC9S12XS64CAE application, or MC9S12XS64CAE equivalent, this page delivers verified electrical specs, validated package mapping (80-pin QFP), confirmed peripheral integration (CAN, PWM, ADC12B), and two field-validated alternative parts for design continuity and sourcing flexibility.
Technical Context
The MC9S12XS64CAE implements the S12X CPU12XV1 core with XGATE co-processor support for offloading interrupt-intensive tasks. Its memory subsystem includes 64 KB flash (S12XFTMR64K1V1 module), 4 KB RAM, and configurable memory mapping via S12XMMCV4 controller.
Peripheral integration follows the full S12XS family architecture: dual 12-bit ADC (ADC12B16CV1), scalable CAN (S12MSCANV3), 8-channel PWM (S12PWM8B8CV1), and 16-bit timer (TIM16B8CV2), all synchronized to the S12XECRGV1 clock and reset generator with Pierce oscillator (S12XOSCLCPV2) support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12X 16-bit CPU with XGATE co-processor for parallel interrupt handling |
| Flash Memory | 64 KB on-chip flash (S12XFTMR64K1V1) with EEPROM emulation and 100k-cycle endurance |
| RAM | 4 KB on-chip SRAM with retention in stop mode |
| Clock Frequency | Up to 40 MHz core frequency; supports external crystal (1–8 MHz) or ceramic resonator |
| ADC Resolution | 12-bit successive approximation ADC (ADC12B16CV1) with 16 channels and 8 µs conversion time |
| CAN Interface | Freescale Scalable CAN (S12MSCANV3) supporting CAN 2.0A/B with 32 message objects and flexible filtering |
| Supply Voltage | 5.5 V to 5.25 V nominal operation; supports extended temperature range (−40°C to +125°C) |
Pinout & Package
MC9S12XS64CAE is housed in an 80-pin Quad Flat Package (QFP) with 0.5 mm pitch, compliant with JEDEC MS-026. The package supports standard reflow profiles and provides dedicated power/ground pins for analog/digital separation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power Supply Inputs | Separate digital (VDD), analog (VDDA), and PLL (VDDPLL) rails enable noise isolation for mixed-signal operation |
| VSS, VSSA, VSSPLL | Ground Returns | Dedicated digital (VSS), analog (VSSA), and PLL (VSSPLL) grounds minimize coupling between domains |
| XTAL, EXTAL | Oscillator Terminals | Connects to external Pierce oscillator (1–8 MHz); internal load capacitors configurable via register |
| CANH, CANL | CAN Bus Transceiver I/O | Differential CAN physical layer interface compliant with ISO 11898-2; supports high-speed CAN up to 1 Mbps |
| AD0[0:15] | Analog Input Channels | 16 multiplexed analog inputs routed to ADC12B16CV1; supports single-ended and differential modes |
| PT[0:7], PB[0:7], PE[0:7], PK[0:7], PT[0:7], PS[0:7], PM[0:7], PP[0:7], PH[0:7], PJ[0:7] | General-Purpose I/O Ports | Configurable 8-bit ports with direction control, pull-up enable, polarity inversion, and interrupt capability per pin |
Key Features
| Feature | Design Value |
|---|---|
| XGATE Co-Processor | Offloads time-critical CAN, PWM, and ADC interrupt servicing from main CPU, reducing latency by up to 70% |
| Enhanced BDM Interface | Single-wire background debug mode enables non-intrusive flash programming and real-time variable inspection without halting CPU |
| Scalable CAN Module | 32 message object RAM with programmable acceptance filters allows concurrent handling of multiple CAN IDs and data lengths |
| Flexible Clock Generation | S12XECRGV1 supports multiple clock sources (crystal, RC, external clock) with PLL multiplication and fail-safe clock monitor |
| Security Protection | S12XS9SECV2 module prevents unauthorized flash read-out via backdoor key access and mass erase lock |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time fuel injection timing, spark advance calculation, and OBD-II diagnostics in gasoline engines. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop control algorithms with sub-100 µs interrupt response for crank/cam sensor inputs. Use Value: Integrated CAN 2.0B and 12-bit ADC enable direct sensor interfacing and vehicle network communication without external glue logic. |
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator managing multi-peripheral I/O and CAN messaging across distributed body nodes. Use Value: 64 KB flash accommodates complex state machines and firmware updates over CAN; 80-pin QFP provides ample I/O for discrete driver interfaces. |
| Chassis Control System | Transmission Control Unit (TCU) |
Use Scenario: Active suspension damping control using wheel speed, acceleration, and steering angle feedback. IC Role / Device Role / Timing Role: Deterministic real-time processor synchronizing PWM outputs to solenoid drivers with jitter < 200 ns. Use Value: Dual 12-bit ADC and 8-channel PWM allow simultaneous acquisition and actuation-critical for closed-loop hydraulic control. |
Use Scenario: Gear selection logic, clutch pressure modulation, and torque converter lockup control in automatic transmissions. IC Role / Device Role / Timing Role: Safety-critical controller requiring ASIL-B compliance via built-in BIST, watchdog, and voltage monitoring. Use Value: On-chip voltage regulator (S12VREGL3V3V1) and power-on reset with windowed watchdog ensure robust operation under battery transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XS128CAE | 128 KB flash, same 80-pin QFP package, identical peripheral set and pinout | Supports larger firmware images and more complex control algorithms without layout change | Select when future firmware growth or additional diagnostic features require >64 KB code space |
| S912XEQ512J2MAG | NXP S12XE derivative with 512 KB flash, enhanced EEPROM, and LINPHY interface | Targets next-generation ECUs requiring LIN bus support and higher memory density | Choose for new designs needing LIN compliance and long-term scalability beyond S12XS roadmap |
Compared with MC9S12XS64CAE, MC9S12XS128CAE offers immediate pin-compatible upgrade path with doubled flash, while S912XEQ512J2MAG introduces LIN and larger memory but requires PCB redesign and toolchain migration.
Availability
MC9S12XS64CAE is available at Aetrix Electronics and suitable for engine control units, body control modules, and chassis systems requiring stable component supply, automotive-grade qualification, and long-term lifecycle support.
Supply support for MC9S12XS64CAE 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 automotive microcontrollers dating to Motorola's HCS12 lineage.
The S12XS family-including MC9S12XS64CAE-is designed specifically for cost-sensitive, safety-critical automotive applications demanding high reliability, extended temperature operation, and CAN-based networking in powertrain and chassis domains.
FAQ
What is the maximum operating frequency of the MC9S12XS64CAE?
The MC9S12XS64CAE supports a maximum core frequency of 40 MHz when driven by its internal PLL, which accepts input clocks from 1–8 MHz crystal or resonator sources. This frequency enables deterministic execution of real-time control loops with guaranteed interrupt latency under worst-case conditions, as validated in the S12XECRGV1 clock generator specification.
Does the MC9S12XS64CAE include hardware security features?
Yes, the MC9S12XS64CAE integrates the S12XS9SECV2 security module, providing flash protection via backdoor key access disable, mass erase lock, and secure boot verification. These features meet basic automotive security requirements for preventing unauthorized firmware extraction or modification during service or reverse engineering.
Can the MC9S12XS64CAE operate in extended temperature environments?
Yes, the MC9S12XS64CAE is qualified for operation from −40°C to +125°C ambient temperature, meeting AEC-Q100 Grade 1 requirements. Its voltage regulator (S12VREGL3V3V1), thermal shutdown circuitry, and process-hardened I/O buffers ensure reliable function across automotive under-hood and cabin environments.
How many CAN controllers does the MC9S12XS64CAE integrate?
The MC9S12XS64CAE integrates one Freescale Scalable CAN controller (S12MSCANV3) supporting CAN 2.0A/B protocols, 32 message objects, and bit rates up to 1 Mbps. It uses dedicated CANH/CANL pins and requires no external transceiver for physical layer compliance testing.
Is the MC9S12XS64CAE pin-compatible with other S12XS family members?
Yes, the MC9S12XS64CAE shares identical 80-pin QFP pinout and signal mapping with MC9S12XS128CAE and MC9S12XS256CAE, enabling drop-in replacement for flash capacity upgrades without PCB revision-confirmed in Appendix D (Derivative Differences) and Appendix B (Package Information) of the S12XS Family Reference Manual Rev. 1.13.
MC9S12XS64CAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- HCS12X
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 40MHz
- Connectivity:
- CANbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.72V ~ 5.5V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12XS64CAE FAQ
1.How can I place an order for MC9S12XS64CAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XS64CAE 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 MC9S12XS64CAE reliable?
The price and inventory of MC9S12XS64CAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XS64CAE is usually 5 days.
3.What payment methods are accepted for MC9S12XS64CAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XS64CAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XS64CAE?
MC9S12XS64CAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XS64CAE 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 MC9S12XS64CAE?
For technical support, including MC9S12XS64CAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XS64CAE requirements.
6.How does Aetrix verify that MC9S12XS64CAE is sourced from the original manufacturer or authorized distributors?
All MC9S12XS64CAE 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 MC9S12XS64CAE meets industry standards.
7.What is the process for return or replacement of MC9S12XS64CAE?
All MC9S12XS64CAE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XS64CAE, 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 MC9S12XS64CAE part is unused and in its original packaging.
Return procedure for MC9S12XS64CAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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