MC9S12D64CFU - 16-Bit 25MHz HCS12 MCU, 64KB Flash, 80-QFP | NXP
MPN: MC9S12D64CFU ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.85 | $12.85 |
| 10 | $11.46 | $114.60 |
| 100 | $10.18 | $1,018.00 |
| 500 | $9.05 | $4,525.00 |
| 1,000 | $8.1 | $8,100.00 |
MC9S12D64CFU Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), peripherals, and I/O onto one die. Within the broader category, the MC9S12D64CFU is a CISC 16-bit MCU using the HCS12 core architecture. The HCS12 hierarchy sits inside the automotive-qualified 16-bit MCU segment, which itself is a branch of the wider microcontroller family tree: 16-bit MCU -> MCU -> microcontroller -> embedded processor -> semiconductor. Compared with 8-bit MCUs (such as HC08 or 8051), the 16-bit HCS12 offers a richer instruction set, larger linear address space, and on-chip peripherals suited to body and chassis ECUs.
Key features of the MC9S12D64CFU include 64 KB of on-chip Flash for application code, 4 KB of RAM for data, an integrated 8-channel 10-bit A/D converter for analog sensor acquisition, and 59 general-purpose I/O pins for digital interfacing. Communication peripherals in the HCS12D family typically include multiple SCI (UART), SPI, and IIC (I2C) ports, plus PWM channels and timers, although specific peripheral counts for the MC9S12D64CFU need to be confirmed in the device datasheet. The 25 MHz bus clock and 16-bit data path allow deterministic interrupt latency and predictable execution.
The MC9S12D64CFU is built around the HCS12 CPU core with CISC (Complex Instruction Set Computer) architecture, providing an instruction pipeline, hardware multiply, and background debug mode (BDM) for in-circuit development. The integrated oscillator and Phase-Lock-Loop (PLL) simplify clock generation, while on-chip voltage regulation supports a wide supply range. The 80-QFP package exposes enough pins for the HCS12's multiplexed bus plus dedicated peripheral pins, enabling both memory expansion and rich peripheral use.
Typical applications for the MC9S12D64CFU include automotive body controllers, instrument cluster MCUs, HVAC climate-control modules, seat and mirror controllers, lighting and door-zone modules, and industrial control boards requiring 16-bit performance with AEC-Q100 reliability. The combination of Flash, EEPROM emulation in Flash, and CAN-friendly peripherals makes it well-suited for in-vehicle networks where deterministic response and automotive-grade qualification are required.
When designing with the MC9S12D64CFU, pay attention to the multiplexed address/data bus and ensure proper external-memory timing if you expand beyond the internal 64 KB Flash. AEC-Q100 qualification means you must observe the automotive temperature range and follow NXP's EMC and signal-integrity guidelines for 80-QFP PCB layouts.
This page synthesizes distributor pricing, 80-QFP drop-in alternatives, and AEC-Q100 design notes not collected on the manufacturer datasheet alone, providing the consolidated engineering context needed for sourcing and second-source decisions.
Drop-in alternatives for MC9S12D64CFU — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC9S12D64CFU (same form factor and footprint) — differing in ADC, Number of I/O, Package / Case, Program Memory Size, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S12D64CFUE
✅ Drop-In✓ In Stock
$16.2 / Unit
View Datasheet →MC9S12D64VFU
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12D64MPVE
✅ Drop-In✓ In Stock
$9.84 / Unit
View Datasheet →MC9S12D64MFU
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12D64CFU
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →MC9S12D64CFU Maximum Ratings & Electrical Characteristics
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Series | HCS12 / MC9S12 |
| Core Architecture | HCS12 (16-bit CISC) |
| Core Type | HCS12 |
| Program Memory Size | 64 KB (64K x 8) Flash |
| Program Memory Type | Flash |
| RAM Size | 4 KB |
| Data EEPROM | 1 KB (per family datasheet) |
| Maximum CPU Frequency | 25 MHz |
| Number of I/O Pins | 59 |
| ADC | 8-channel, 10-bit (per family datasheet) |
| Supply Voltage | 2.5 V / 5 V |
| Oscillator Type | Internal |
| Package / Case | 80-QFP (PQFP, 14x14 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Operating Temperature Grade | Industrial / Automotive (AEC-Q100) |
MC9S12D64CFU 80-qfp (pqfp, 14x14 mm) Pin Configuration Guide
Pin configuration for MC9S12D64CFU (80-qfp (pqfp, 14x14 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MC9S12D64CFU.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S12D64CFU is suitable for 6 applications: Automotive Body Control Module, Instrument Cluster MCU, HVAC Climate Control Module, Seat and Mirror Controller, Industrial CAN Node Controller, Lighting and Door-Zone Module.
Automotive Body Control Module
The MC9S12D64CFU's AEC-Q100 qualification, 16-bit HCS12 core at 25 MHz, and 59 GPIO pins suit it to body control modules that aggregate lighting, door locks, mirror switches, and rain/light sensor inputs. The 64 KB Flash holds door-zone and lighting firmware, while the 8-channel 10-bit ADC samples analog switch wiper voltages and ambient-light sensors with deterministic 16-bit interrupt response. Compared with 8-bit MCUs, the HCS12's hardware multiplier and BDM debug port shorten calibration loops for BCM production tests.
Recommended
Instrument Cluster MCU
Instrument clusters need real-time response to CAN messages, PWM-driven gauge outputs, and stepper-motor control. The MC9S12D64CFU's 16-bit HCS12 core, hardware timers, and PWM channels drive analog/digital gauges while the 64 KB Flash hosts the odometer, trip, and warning-indicator logic. The 80-QFP package exposes enough pins for parallel LCD drive and backlight control, and AEC-Q100 compliance supports cluster operation across -40C to +125C ambient. Stepper-motor drivers such as the A3977 are typically paired off-chip for needle control.
Recommended
HVAC Climate Control Module
Climate-control ECUs mix analog temperature sensing with PWM blower/fan control and CAN networking. The MC9S12D64CFU's 8-channel 10-bit ADC reads cabin and duct NTC sensors, while the HCS12's PWM/timer peripherals generate the variable-frequency blower drive. With 64 KB Flash the part holds lookup tables for humidity compensation and PWM-versus-rpm curves; the 80-QFP footprint fits the typical HVAC module PCB. The AEC-Q100 grade matches the automotive thermal stress under dashboard mounting.
Recommended
Seat and Mirror Controller
Power-seat and power-mirror modules require multiple PWM channels for motor direction, position feedback via potentiometers, and memory-position storage. The MC9S12D64CFU's 59 GPIO plus PWM timers drive up to eight seat-axis motors with H-bridge companion ICs, while the 10-bit ADC reads seat position feedback. The 64 KB Flash is sufficient for memory-position profiles, and the 16-bit core keeps control-loop latency under 1 ms for smooth actuation. AEC-Q100 qualification supports under-seat thermal loads in summer vehicle soak conditions.
Recommended
Industrial CAN Node Controller
Industrial machinery uses CANopen or DeviceNet nodes that benefit from the MC9S12D64CFU's HCS12 core, on-chip CAN peripheral, and 64 KB Flash for protocol stacks. The 16-bit CISC architecture supports efficient CAN message handling with low interrupt latency, and the 80-QFP package fits DIN-rail mounted control boards. The part's industrial temperature range and Flash in-application programming simplify field firmware updates across factory-floor installations.
Recommended
Lighting and Door-Zone Module
Door-zone modules aggregate window lift, central locking, mirror fold, and puddle-lamp control. The MC9S12D64CFU provides 59 GPIO and PWM channels to drive multiple loads simultaneously while the 10-bit ADC reads current-sense amplifiers for short-circuit detection. With 64 KB Flash and 4 KB RAM the part holds the door-zone state machine, while the HCS12's fast interrupt response prevents flicker on PWM lighting. AEC-Q100 qualification supports door-module thermal stress and electrical transients per ISO 7637.
Recommended
Recommended Products Summary
Engineering reference data for MC9S12D64CFU — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S12D64CFUE | MC9S12D64VFU | MC9S12D64MPVE | MC9S12D64MFU | MC9S12D64CFU |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-QFP (PQFP, 14x14 mm) | 80-QFP (PQFP, 14x14 mm) | 80-QFP (PQFP, 14x14 mm) | 80-QFP (PQFP, 14x14 mm) | 80-QFP (PQFP, 14x14 mm) | 80-QFP (PQFP, 14x14 mm) |
| Core | HCS12 (16-bit CISC) | HCS12 (16-bit CISC) | HCS12 (16-bit CISC) | HCS12 (16-bit CISC) | HCS12 (16-bit CISC) | HCS12 (16-bit CISC) |
| Max CPU Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| RAM Size | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Number of I/O Pins | 59 | 59 | 59 | 59 | 59 | 59 |
| AEC-Q100 Grade | Yes | Yes (full automotive) | Yes (extended) | Yes (automotive mask) | Yes (industrial automotive) | Yes |
| Lifecycle Status | NRND | NRND | Active | Active | Active | NRND |
Key Differentiators
- AEC-Q100 qualified on the -E suffix (vs MC9S12D64CFUE)
- Extended voltage/temperature range on the V suffix (vs MC9S12D64VFU)
- Mask-set revision maturity on the MPVE (vs MC9S12D64MPVE)
Design Notes
NRND risk: NXP has placed the MC9S12D64CFU on NRND (Not Recommended for New Designs) per the official product page, so production orders should be qualified against last-time-buy dates. A safer long-term approach is to design on the -E suffix variant or migrate to the active S12D128/S12D256 family, keeping the same 80-QFP footprint and HCS12 core for firmware reuse. Confirm with your NXP field application engineer before locking the BOM.
80-QFP PCB layout requires a 14x14 mm land pattern with gull-wing leads on all four sides. Use at least a 4-layer stack-up with a continuous ground plane beneath the IC to control the impedance of the multiplexed address/data bus; route the HCS12 external bus signals with matched lengths within 25 mil to preserve bus-timing margins at 25 MHz. Decouple VDD/VSS pairs with 100 nF X7R ceramics placed within 3 mm of each supply pin, plus a bulk 10 uF tantalum or ceramic near the package.
The MC9S12D64CFU accepts a 2.5 V or 5 V supply per the family datasheet, with on-chip voltage regulation for the core. Add reverse-battery and load-dump protection (TVS diode + series diode) on the VBAT rail because automotive modules must survive ISO 7637-2 pulse transients. Use a watchdog timer or external supervisor to recover from ECU brown-out events, since HCS12 BDM lockups can otherwise disable in-field recovery.
Background Debug Mode (BDM) pins must be brought out to a header for in-circuit firmware development and field firmware update. The BDM clock and data signals are sensitive to noise; keep traces short (<50 mm) and shield them with ground vias to avoid false debugger sync during EMC testing. Do not share BDM pins with high-current loads or PWM outputs because switching transients can corrupt debug sessions.
Compliance Information
AEC-Q100 compliance stated in datasheets.com part description and DigiKey listing. RoHS, REACH, lead-free, halogen-free and conflict-minerals declarations were not present in the verified web data and are listed as 'unknown' rather than fabricated; confirm with NXP product compliance documentation before AEC-Q100 submission.