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NXP Semiconductors MC9S12XS64CAER
- Part No.:
- MC9S12XS64CAER
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MC9S12XS64CAER.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,927
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Product details
Overview
MC9S12XS64CAER from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X-based microcontroller with 64 KB on-chip flash, 4 KB RAM, and integrated CAN 2.0B controller. It operates at up to 40 MHz core frequency, supports 5V I/O, and features 12-bit ADC with 16 channels, 8-channel PWM, and background debug module (BDM). It targets automotive body control modules requiring robust real-time control and CAN networking.
For engineers reviewing the MC9S12XS64CAER datasheet, MC9S12XS64CAER pinout, MC9S12XS64CAER application, or MC9S12XS64CAER equivalent, key selection criteria include its 64 KB flash size, 5V tolerant I/O, S12X CPU12XV1 core architecture, CAN 2.0B compliance, and qualification for automotive temperature range (–40°C to +125°C).
Technical Context
The MC9S12XS64CAER implements the S12X CPU12XV1 core with XGATE co-processor support for offloading interrupt-intensive tasks. Its memory subsystem includes 64 KB flash organized in 1 KB sectors, 4 KB RAM, and 1 KB EEPROM emulation via flash. The device integrates a scalable CAN controller (S12MSCANV3), 12-bit ADC12B16CV1 with hardware trigger synchronization, and S12PWM8B8CV1 with dead-time insertion and center-aligned modes.
Peripherals are managed through the Port Integration Module (S12XSPIMV1), supporting configurable pull-ups, reduced drive strength, and polarity inversion per port. Clock generation uses the S12XECRGV1 module with internal PLL, external crystal, or RC oscillator options - enabling flexible system timing across automotive operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12X CPU12XV1 16-bit CISC core with XGATE auxiliary processor for deterministic ISR offload |
| Flash Memory | 64 KB on-chip flash (S12XFTMR64K1V1) with 1 KB sector erase, 100k-cycle endurance, and 10-year data retention |
| RAM | 4 KB on-chip SRAM with wait-state-free access at full 40 MHz operation |
| CAN Interface | One Freescale Scalable CAN controller (S12MSCANV3) compliant with ISO 11898-1:2003, supporting CAN 2.0B protocol and 1 Mbit/s data rate |
| ADC | 12-bit successive-approximation ADC (ADC12B16CV1) with 16 input channels, 8 µs conversion time, and hardware-triggered sequencing |
| PWM | 8-channel 16-bit PWM (S12PWM8B8CV1) with independent duty cycle/period control, dead-time insertion, and center-aligned mode for motor control |
| Operating Voltage | 4.5 V to 5.5 V supply range - enables direct interfacing with 5V automotive sensors and actuators without level-shifting |
| Temperature Range | –40°C to +125°C ambient operating range - qualified per AEC-Q100 Grade 1 for under-hood automotive applications |
Pinout & Package
MC9S12XS64CAER is housed in an 80-pin QFP (Quad Flat Package) with 0.65 mm pitch, moisture sensitivity level (MSL) 3, and lead-free (Pb-free) RoHS-compliant finish. Package dimensions are 12 mm × 12 mm × 1.4 mm (height).
| 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 ADC and clock circuits |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated analog (VSSA) and PLL (VSSPLL) grounds minimize coupling of digital switching noise into sensitive analog paths |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced signal or watchdog timeout assertion |
| MODA, MODB | Mode configuration pins | Set boot mode (normal, special bootstrap, or BDM) at power-on; latched during reset sequence |
| XTAL, EXTAL | Clock oscillator terminals | Support external crystal (1–8 MHz) or ceramic resonator; internal oscillator circuitry provides stable reference for PLL |
| CANH, CANL | CAN bus differential pair | Direct connection to ISO 11898-compliant physical layer transceiver; integrated CAN controller handles message filtering and arbitration |
| PORTA–PORTH, PORTJ, PORTK, PORTM, PORTP, PORTS, PORTT | General-purpose I/O ports | Configurable as digital input/output, analog input, or peripheral function (e.g., PWM, SCI, SPI); each port supports pull-up, drive strength, and polarity control |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Offloads time-critical interrupts (e.g., CAN message handling, ADC sampling) from main CPU, reducing latency and jitter in real-time control loops |
| Scalable CAN controller | Hardware message buffering (32-message FIFO), programmable acceptance filtering, and automatic retransmission reduce software overhead and improve network determinism |
| Background Debug Module (BDM) | Single-wire debug interface supporting full-speed execution control, register inspection, and flash programming without dedicated JTAG pins |
| EEPROM emulation | 1 KB of flash configured as EEPROM-equivalent storage with wear-leveling and atomic write support for parameter logging and calibration data |
| Peripheral routing flexibility | Module Routing Register (MODRR) allows dynamic assignment of functions (e.g., SCI, SPI, PWM) to multiple port pins - simplifies PCB layout and enables pin-compatible derivatives |
| Automotive-grade voltage regulator | On-chip 3.3 V regulator (S12VREGL3V3V1) powers internal logic and PLL; eliminates need for external LDO in cost-sensitive designs |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
Use Scenario: Centralized management of lighting, window lifts, door locks, and mirror controls in passenger vehicles. IC Role / Device Role / Timing Role: Main application MCU executing real-time control logic, communicating over CAN with gateway and other ECUs. Use Value: 64 KB flash accommodates complex state machines and diagnostics; CAN 2.0B ensures interoperability with OEM networks; 5V I/O interfaces directly with legacy switches and relays. | Use Scenario: Local control of power windows, central locking, and side mirror adjustment in vehicle doors. IC Role / Device Role / Timing Role: Dedicated sub-system MCU with isolated PWM outputs for motor drivers and ADC inputs for position sensing. Use Value: Integrated 8-channel PWM with dead-time control enables compact window lift driver design; 12-bit ADC resolves potentiometer feedback with ±1 LSB accuracy. |
| Roof Module Controller | Seat Control Unit |
Use Scenario: Control of sunroof, panoramic roof, and interior lighting including ambient LED dimming. IC Role / Device Role / Timing Role: Real-time actuator controller with synchronized PWM dimming and CAN-based command reception. Use Value: Center-aligned PWM mode enables smooth LED current regulation; CAN interface receives global lighting commands from body domain controller. | Use Scenario: Motorized seat positioning with memory recall, heating, and lumbar support in premium vehicles. IC Role / Device Role / Timing Role: Safety-critical motion controller managing dual H-bridge drivers and thermal monitoring. Use Value: –40°C to +125°C rating ensures reliability in enclosed seat environments; hardware ADC triggers thermal shutdown before IC damage occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XS128CAER | 128 KB flash, same package and pinout; identical peripheral set and core architecture | Supports larger firmware images (e.g., OTA update capability, enhanced diagnostics) | Select when future firmware growth or dual-bank flash updates are required; no PCB change needed |
| S912XEQ512J2 | 512 KB flash, 32 KB RAM, enhanced CAN FD support, and LIN 2.2 controller; different pinout (112-pin LQFP) | Targeted at next-generation domain controllers requiring higher integration and communication bandwidth | Choose for new designs needing CAN FD or LIN; requires PCB redesign and toolchain migration |
Compared with MC9S12XS64CAER, the MC9S12XS128CAER offers double flash capacity with full pin and software compatibility - ideal for incremental feature upgrades. The S912XEQ512J2 delivers significantly expanded memory and modern protocols but mandates hardware and software requalification due to architectural and packaging differences.
Availability
MC9S12XS64CAER is available at Aetrix Electronics and suitable for automotive body electronics, door control modules, and roof systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for MC9S12XS64CAER 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. Formerly Freescale Semiconductor, it acquired the HCS12X portfolio in 2015.
The S12XS family was designed specifically for cost-sensitive, high-reliability automotive body electronics - emphasizing CAN integration, 5V robustness, and debug-friendly architecture for rapid ECU development and validation.
FAQ
What is the maximum operating frequency of the MC9S12XS64CAER?
The MC9S12XS64CAER supports a maximum core clock frequency of 40 MHz when using the internal PLL with an external crystal or oscillator. This frequency is achieved with the S12X CPU12XV1 core and applies across the full automotive temperature range (–40°C to +125°C), as verified in the Electrical Characteristics section of the S12XS Family Reference Manual, Rev. 1.13.
Does the MC9S12XS64CAER support CAN FD?
No, the MC9S12XS64CAER implements the legacy Freescale Scalable CAN controller (S12MSCANV3), which supports only CAN 2.0A/B protocols up to 1 Mbit/s. It does not support CAN FD framing, data-rate switching, or extended payload lengths. For CAN FD capability, consider newer NXP S32K or S912XEQ series devices.
Is the MC9S12XS64CAER pin-compatible with other S12XS family members?
Yes, the MC9S12XS64CAER in the 80-pin QFP package shares identical pinout and electrical characteristics with MC9S12XS128CAER and MC9S12XS256CAER. This allows drop-in replacement for flash capacity upgrades without PCB modification - confirmed by the Pin Assignment Overview in Chapter 1.2.2 of the S12XS Family Reference Manual.
What debug interface does the MC9S12XS64CAER use?
The MC9S12XS64CAER uses the Background Debug Module (BDM) interface, a single-wire serial protocol defined in the S12XBDMV2 specification. It supports full-speed run control, register read/write, flash programming, and breakpoint insertion without requiring JTAG pins - enabling compact debug connector designs in space-constrained automotive modules.
How is EEPROM functionality implemented on the MC9S12XS64CAER?
The MC9S12XS64CAER provides 1 KB of EEPROM emulation using dedicated flash sectors managed by on-chip firmware routines (S12XFTMR64K1V1). This includes wear-leveling, atomic write operations, and error detection - allowing reliable storage of calibration data, odometer values, or user preferences without external EEPROM components.
MC9S12XS64CAER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- HCS12X
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 4K x 8
- 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:
MC9S12XS64CAER FAQ
1.How can I place an order for MC9S12XS64CAER through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12XS64CAER 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 MC9S12XS64CAER reliable?
The price and inventory of MC9S12XS64CAER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12XS64CAER is usually 5 days.
3.What payment methods are accepted for MC9S12XS64CAER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12XS64CAER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12XS64CAER?
MC9S12XS64CAER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12XS64CAER 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 MC9S12XS64CAER?
For technical support, including MC9S12XS64CAER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12XS64CAER requirements.
6.How does Aetrix verify that MC9S12XS64CAER is sourced from the original manufacturer or authorized distributors?
All MC9S12XS64CAER 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 MC9S12XS64CAER meets industry standards.
7.What is the process for return or replacement of MC9S12XS64CAER?
All MC9S12XS64CAER units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12XS64CAER, 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 MC9S12XS64CAER part is unused and in its original packaging.
Return procedure for MC9S12XS64CAER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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