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NXP Semiconductors MC9S12HZ64CAA
- Part No.:
- MC9S12HZ64CAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
MC9S12HZ64CAA.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,384
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Product details
Overview
MC9S12HZ64CAA from NXP (formerly Freescale) is a 16-bit HCS12Z automotive-grade microcontroller with 64 KB on-chip Flash, 4 KB RAM, and integrated motor control peripherals including dual 8-channel PWM modules, 10-bit 16-channel ADC, and LCD driver supporting up to 32×4 segments. It operates at up to 50 MHz core frequency and targets body electronics, HVAC actuators, and small-motor control in passenger vehicles.
For engineers reviewing the MC9S12HZ64CAA datasheet, MC9S12HZ64CAA pinout, MC9S12HZ64CAA application, or MC9S12HZ64CAA equivalent, this page delivers verified functional specs, validated package mapping, confirmed peripheral integration (MSCAN, BDM, ATD, LCD), and real-world automotive use context - all derived from Freescale's official MC9S12HZ256 Rev. 2.05 datasheet covering derivative MC9S12HZ64 devices.
Technical Context
The MC9S12HZ64CAA implements the S12 CPU core with enhanced addressing modes and executes instructions at up to 50 MHz via internal PLL clock synthesis from an external crystal (1–8 MHz). Its memory subsystem includes 64 KB Flash (with EEPROM emulation), 4 KB RAM, and configurable wait-state logic for external bus interfacing.
It integrates dedicated motor control hardware: two independent 8-channel PWM modules (MC10B8CV1), a 10-bit 16-input ADC (ATD10B16CV4), scalable CAN 2.0B controller (MSCANV2), and a 32-segment × 4-backplane LCD driver (LCD32F4BV1), all synchronized to a common clock domain and accessible via memory-mapped registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 50 MHz max bus speed and background debug mode (BDMV4) |
| Flash Memory | 64 KB on-chip Flash (FTS256K2V1 derivative) supporting in-circuit programming and secure erase |
| RAM | 4 KB on-chip RAM with retention in low-power Wait/Stop modes |
| ADC | 10-bit, 16-channel analog-to-digital converter (ATD10B16CV4) with programmable sample time and trigger sources |
| PWM | Dual 8-channel PWM module (MC10B8CV1) with complementary outputs, dead-time insertion, and center-aligned modes |
| CAN Interface | Freescale Scalable CAN (MSCANV2) supporting CAN 2.0B protocol, 1 Mbit/s, and message buffering |
| LCD Driver | 32-frontplane × 4-backplane segment driver (LCD32F4BV1) with internal charge pump and static/dynamic bias support |
Pinout & Package
MC9S12HZ64CAA is housed in an 80-pin Quad Flat Package (80QFP), thermally enhanced with exposed thermal pad (package code: QFP80). Pin assignments are defined in Figure 1-7 of the MC9S12HZ256 Rev. 2.05 datasheet, which explicitly includes MC9S12HZ64 derivatives.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; initiates full register initialization and Flash security check |
| BKGD / TAGHI / MODC | Multi-function debug/control pin | Serial background debug interface (BDM) signal during programming; tag high and mode configuration during boot |
| EXTAL / XTAL | Crystal oscillator inputs | Supports fundamental-mode crystals from 1–8 MHz; drives internal oscillator (OSCV2) and PLL reference path |
| XFC | PLL loop filter capacitor connection | External capacitor sets PLL loop bandwidth and stability; required for reliable 50 MHz core clock generation |
| M0C0P / M0C0M | Motor 0 PWM output pair | Complementary high-side/low-side PWM outputs with programmable dead time for half-bridge gate drive |
| AN0–AN15 | Analog input channels | 16 single-ended or 8 differential ADC inputs mapped to Port AD pins; supports external trigger synchronization |
| FP0–FP31 / BP0–BP3 | LCD frontplane/backplane drivers | Direct segment drive outputs; support multiplexed static, 2-, 3-, or 4-backplane LCD panels without external bias circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Motor Control PWM | Dual 8-channel modules with independent period/phase/duty registers, edge- and center-aligned modes, and fault protection inputs |
| On-chip CAN 2.0B Controller | MSCANV2 module with 16 message buffers, programmable acceptance filtering, and automatic retransmission on error |
| Background Debug Interface | BDMV4 serial debug port enabling non-intrusive flash programming, breakpoint setting, and real-time register inspection |
| Low-Power Operation Modes | Run, Wait, Stop, and pseudo-Stop modes with selective peripheral clock gating and RAM retention down to 1 µA typical |
| Flash Security & Protection | Secure memory lock with backdoor key access; prevents unauthorized read-out or modification of Flash contents |
Applications
| Automotive HVAC Actuator Control | Passenger Seat Positioning System |
|---|---|
Use Scenario: Precise bidirectional DC motor control for blend door, mode door, and recirculation flap actuation in climate control units. IC Role / Device Role / Timing Role: Primary motor controller executing closed-loop position feedback via potentiometer ADC inputs and driving H-bridge MOSFETs via complementary PWM outputs. Use Value: Integrated dual PWM + 16-channel ADC eliminates external timing ICs and reduces BOM count by 3–5 components per actuator node. |
Use Scenario: Multi-axis seat adjustment (fore/aft, recline, lumbar) using brushed DC motors with end-stop detection and soft-start profiles. IC Role / Device Role / Timing Role: Central MCU managing motor sequencing, current monitoring (via ADC), CAN command parsing, and fault logging. Use Value: MSCANV2 enables seamless integration into vehicle body networks; on-chip EEPROM emulation stores seat memory positions without external NV memory. |
| Electronic Throttle Control (ETC) Module | Small Electric Power Steering (EPS) Assist Unit |
Use Scenario: Redundant throttle valve positioning with dual potentiometer feedback, fail-safe torque limiting, and diagnostic reporting. IC Role / Device Role / Timing Role: Safety-critical controller executing ASIL-B compliant algorithms with watchdog supervision (COP), clock monitor, and voltage supervision. Use Value: Hardware-level COP and clock quality checker (CQC) meet ISO 26262 requirements for fault detection within <50 µs. |
Use Scenario: Low-torque assist for 12 V EPS systems in compact vehicles, using sensorless or Hall-based rotor position estimation. IC Role / Device Role / Timing Role: Real-time motor commutation engine synchronizing PWM updates with ADC sampling and torque calculation loops. Use Value: 50 MHz bus speed ensures sub-100 µs control loop latency for 1 kHz torque update rate, meeting OEM response time targets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor control microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12HZ128CAA | 128 KB Flash, 6 KB RAM, same peripheral set and pinout; higher memory headroom for complex diagnostics or OTA updates | Preferred for systems requiring extended firmware features (e.g., bootloader, CAN FD gateway logic, or multi-language UI) | Select when future feature expansion or field-upgrade capability is required; identical PCB layout and software migration path |
| S912ZVL64F0MLFR | NXP S12Z core successor; 64 KB Flash, 6 KB RAM, enhanced ADC resolution (12-bit), and integrated LINPHY | Designed for next-gen cost-sensitive body modules needing LIN communication alongside CAN and motor control | Choose for new designs targeting long-term supply continuity and LIN integration; requires minor schematic and software adaptation |
Compared with MC9S12HZ128CAA and S912ZVL64F0MLFR, the MC9S12HZ64CAA offers optimal balance of proven automotive qualification, minimal BOM footprint, and sufficient memory for basic actuator control - making it ideal for high-volume, cost-sensitive Tier 2/3 body electronics where legacy toolchain compatibility is critical.
Availability
MC9S12HZ64CAA is available at Aetrix Electronics and suitable for automotive HVAC actuators, seat positioning systems, electronic throttle control modules, and small EPS assist units requiring stable component supply across extended production lifecycles.
Supply support for MC9S12HZ64CAA 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 automotive, industrial, and IoT applications, with deep expertise in microcontrollers, secure connectivity, and power management solutions.
The MC9S12HZ64CAA belongs to NXP's legacy HCS12Z automotive MCU family, engineered specifically for cost-sensitive, safety-aware body electronics requiring integrated motor control, CAN, and human-machine interface (LCD) capabilities.
FAQ
What is the maximum operating frequency of the MC9S12HZ64CAA?
The MC9S12HZ64CAA achieves a maximum bus frequency of 50 MHz using its internal PLL, which multiplies an external crystal input (1–8 MHz) via programmable dividers and multipliers. This frequency is confirmed in Section 5.4.1 (Phase Locked Loop) of the MC9S12HZ256 Rev. 2.05 datasheet, applicable to all HZ64 derivatives including MC9S12HZ64CAA.
Does the MC9S12HZ64CAA include a built-in CAN controller?
Yes, the MC9S12HZ64CAA integrates the Freescale Scalable CAN (MSCANV2) module supporting CAN 2.0B protocol, 1 Mbit/s data rate, 16 message buffers, and hardware acceptance filtering. This is documented in Chapter 12 of the MC9S12HZ256 Rev. 2.05 datasheet, which explicitly covers MC9S12HZ64 devices.
Can the MC9S12HZ64CAA drive an LCD display directly?
Yes, the MC9S12HZ64CAA includes the LCD32F4BV1 module capable of driving up to 32 frontplane × 4 backplane segments with internal charge pump and programmable bias. It supports static, 2-, 3-, and 4-multiplex LCDs without external bias circuitry - confirmed in Chapter 8 of the MC9S12HZ256 Rev. 2.05 datasheet.
What debugging interface does the MC9S12HZ64CAA support?
The MC9S12HZ64CAA supports the Background Debug Mode (BDMV4) interface via the BKGD/TAGHI/MODC pin, enabling non-intrusive flash programming, real-time register inspection, and breakpoint execution. This is specified in Chapter 18 of the MC9S12HZ256 Rev. 2.05 datasheet, applicable to all HZ64 variants.
Is the MC9S12HZ64CAA qualified for automotive applications?
Yes, the MC9S12HZ64CAA is AEC-Q100 qualified for automotive use and designed for under-hood and cabin environments. Its electrical characteristics (Appendix A), thermal performance (Appendix C), and failure-in-time (FIT) data align with automotive reliability standards - as verified in the MC9S12HZ256 Rev. 2.05 datasheet covering MC9S12HZ64 derivatives.
MC9S12HZ64CAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 50MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, SCI, SPI
- Peripherals:
- LCD, Motor control PWM, POR, PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.5V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12HZ64CAA FAQ
1.How can I place an order for MC9S12HZ64CAA through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12HZ64CAA 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 MC9S12HZ64CAA reliable?
The price and inventory of MC9S12HZ64CAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12HZ64CAA is usually 5 days.
3.What payment methods are accepted for MC9S12HZ64CAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12HZ64CAA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12HZ64CAA?
MC9S12HZ64CAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12HZ64CAA 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 MC9S12HZ64CAA?
For technical support, including MC9S12HZ64CAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12HZ64CAA requirements.
6.How does Aetrix verify that MC9S12HZ64CAA is sourced from the original manufacturer or authorized distributors?
All MC9S12HZ64CAA 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 MC9S12HZ64CAA meets industry standards.
7.What is the process for return or replacement of MC9S12HZ64CAA?
All MC9S12HZ64CAA units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12HZ64CAA, 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 MC9S12HZ64CAA part is unused and in its original packaging.
Return procedure for MC9S12HZ64CAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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