MC9S12DJ64MFUE - HCS12 16-bit MCU 64KB Flash 80-QFP | NXP
MPN: MC9S12DJ64MFUE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $15.95 | $159.50 |
| 100 | $12.4 | $1,240.00 |
| 500 | $9.85 | $4,925.00 |
| 1,000 | $8.2 | $8,200.00 |
MC9S12DJ64MFUE Overview
A microcontroller (MCU) in this category is a self-contained computing subsystem integrating a CPU core, program and data memory, peripherals, and I/O on a single silicon die. HCS12 belongs to the 16-bit CISC microcontroller family; it descends from the HC11 line and sits between 8-bit MCUs (such as the Freescale HC08) and higher-end 32-bit microcontrollers (such as Cortex-M or Power Architecture). The MC9S12D series specifically targets distributed body and chassis automotive networks requiring both deterministic CAN communication and real-time control.
Key features include 25 MHz bus speed at 5 V operation, two msCAN 2.0 A/B controllers, SCI, SPI, up to two 8-bit PWM channels plus a 16-bit pulse accumulator, an 8-channel 10-bit ADC with 7 µs conversion time, and an on-chip 1.0 V bandgap reference. The 80-QFP package offers generous I/O while remaining compatible with mid-density PCB assemblies. The HCS12 core is also fully upward-object-code compatible with the HC12 instruction set, allowing reuse of legacy firmware.
The architecture combines a 16-bit register-rich CISC CPU with a 25 ns minimum instruction cycle at 25 MHz. The internal PLL can synthesise higher bus rates from the standard 4 MHz external crystal, supporting accelerated peripheral operation. Two msCAN modules enable isolated high-speed CAN channels for powertrain and body domains, while the ADC's 8 channels support simultaneous analog sensing with hardware trigger from timers.
Typical applications include automotive body controllers (BCM), HVAC control panels, instrument clusters, industrial CAN nodes, OBD-II diagnostic interfaces, and seat/door/window modules. The dual-CAN architecture is also well-suited to vehicle gateway functions bridging powertrain and body networks.
When designing with this MCU, pay attention to the 5 V I/O voltage tolerance, place the 4 MHz crystal within 5 mm of the EXTAL/XTAL pins with short symmetrical traces, and add bulk decoupling at AVDD/VDDR. NRND status should be planned against: confirm ongoing last-time-buy windows with NXP via authorized distributors and pre-qualify a successor.
This page consolidates distributor pricing, life-cycle status, and drop-in alternatives not found in the manufacturer datasheet, giving engineers the actionable context needed for sourcing and migration decisions.
Drop-in alternatives for MC9S12DJ64MFUE — 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 MC9S12DJ64MFUE (same form factor and footprint) — differing in ADC, Package, PWM Channels, Supply Voltage, Debug Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S12DJ128MFUE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.75 / Unit
View Datasheet →MC9S12A64MFUE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12D64MFUE
✅ Drop-In✓ In Stock
$8.35 / Unit
View Datasheet →MC9S12DG128MFUE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$10.5 / Unit
View Datasheet →MC9S12DP512MFUE
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC9S12DJ64MFUE Maximum Ratings & Electrical Characteristics
| Core Architecture | HCS12 (CISC, 16-bit) |
| CPU Frequency | 25 MHz |
| Program Memory | 64 KB Flash (64K x 8) |
| RAM Size | 4 KB |
| EEPROM Size | 1 KB |
| CAN Modules | 2x msCAN 2.0 A/B |
| SCI / SPI | 2x SCI, 1x SPI |
| ADC | 8-channel, 10-bit |
| Timers | ECT (Enhanced Capture Timer), 16-bit, 8-channels |
| PWM Channels | 8 (4x 16-bit or 8x 8-bit via ECT) |
| Operating Temperature | -40C to +125C |
| Package Type | 80-QFP (14x14 mm) |
| Mounting Type | Surface Mount |
| Debug Interface | Background Debug Mode (BDM), single-wire |
| RoHS Status | Compliant |
MC9S12DJ64MFUE 80-qfp (14x14 mm) Pin Configuration Guide
Pin configuration for MC9S12DJ64MFUE (80-qfp (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 MC9S12DJ64MFUE.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S12DJ64MFUE is suitable for 6 applications: Automotive Body Control Module (BCM), HVAC Control Panel and Climate Module, Instrument Cluster Controller, Industrial CAN Node / Field I/O, Seat, Door, and Window Module, OBD-II Diagnostic Interface / Scan Tool.
Automotive Body Control Module (BCM)
The MC9S12DJ64MFUE is well matched to body control modules because its two msCAN 2.0 A/B controllers operate concurrently at up to 1 Mbaud, allowing the part to bridge a high-speed powertrain CAN and a body-domain CAN off one MCU. The 64 KB Flash holds boot plus application plus diagnostic layers for seat/door/lighting controllers, while the 1 KB byte-erasable EEPROM supports last-state storage for trunk/door/window defaults across battery disconnect. The HCS12 core at 25 MHz executes CAN message filtering and the PWM routines for load drivers within tight task budgets, and AEC-Q100 plus -40C to +125C operation makes the part automotive-grade. Use NXP's BDM interface for in-circuit calibration on the assembly line. Trade-off: 64 KB Flash caps complex BLDC/PMSM control loops; consider the MC9S12DP512MFUE (512 KB) for vision or gateway duties.
Recommended
HVAC Control Panel and Climate Module
Climate modules depend on accurate analog sensing plus PWM-driven blower motors, both of which the MC9S12DJ64MFUE delivers in one device. The 8-channel 10-bit ADC reads cabin temperature, outside temperature, humidity transducer, and blower current sense with 7 microsecond conversions, while the Enhanced Capture Timer supports up to 8 PWM channels (4x 16-bit or 8x 8-bit) to drive MOSFET bridges for the blower and mode doors. HCS12 CISC instructions handle bit-bang 7-segment display multiplexing and keypad scans at low cycle cost. The 5 V I/O of this part interoperates with mainstream automotive sensor signal conditioning. Designers should consider the 112-LQFP MC9S12A64CPVE variant in next-generation designs if more PWM channels are required.
Recommended
Instrument Cluster Controller
Instrument clusters require deterministic CAN reception plus fast I/O for stepper motors or analog gauges, both natively supported by the MC9S12DJ64MFUE. The 25 MHz HCS12 core services msCAN mailbox interrupts to update telltale LEDs, fuel-level ADC, and odometer increments, while the SCI/SPI ports can talk to a companion graphics driver. Automotive-grade -40C to +125C operation is mandatory for under-dash temperature swings. The on-chip bandgap reference stabilizes ADC readings over the full supply range, important for accurate fuel and temperature gauges. For larger cluster displays, designers should evaluate the MC9S12DJ128MFUE variant for additional code headroom.
Recommended
Industrial CAN Node / Field I/O
Outside the vehicle, the MC9S12DJ64MFUE serves as a robust industrial sensor and actuator node on factory CANopen or DeviceNet-style buses. Dual msCAN controllers support isolated sub-bus processing for mixed-traffic protocols, while the 10-bit ADC reads 4-20 mA current loops via external sense resistors. The HCS12 core's deterministic interrupt response aids deterministic closed-loop control, and 5 V I/O tolerance matches industrial 24 V-referenced sensors via standard isolators. AEC-Q100 qualification provides extra reassurance in industrial settings with wide temperature swings. Engineers needing deterministic Ethernet connectivity should migrate to the NXP S12K family or to Kinetis parts.
Recommended
Seat, Door, and Window Module
Body-domain seat/door/window modules rely on multiple LIN or CAN channel inputs plus PWM-driven motor control, exactly the role of the MC9S12DJ64MFUE. The HCS12 core plus ECT timers deliver 8 PWM outputs for window lifters, mirror adjuster, and door-latch drivers, while the msCAN channels link to the BCM and powertrain networks for cross-domain messaging. 1 KB of byte-erasable EEPROM stores seat memory positions and anti-pinch calibration parameters across battery disconnects. The 80-QFP package exposes enough GPIO for hall-sensor feedback plus keypad row/column. Trade-off: the 64 KB Flash fills quickly in seat modules with comfort logic, so designers should budget for the MC9S12DJ128MFUE migration.
Recommended
OBD-II Diagnostic Interface / Scan Tool
The MC9S12DJ64MFUE is a proven choice for OBD-II scan tools and diagnostic gateways because its dual msCAN ports enable simultaneous high-speed and low-speed CAN parameter access. The HCS12's BDM interface simplifies factory flash-load programming for differentiated country variant firmware. 64 KB Flash holds SAE J1979 PID plus manufacturer-specific PIDs, while the 1 KB EEPROM stores diagnostic trouble codes per ISO 15031. The 10-bit ADC and SCI ports allow integration of voltage probes and serial interface for development tooling. For ISO 14230 (KWP2000) legacy support, designers may layer the protocol on msCAN; if vehicle Ethernet is required in newer diagnostic bridges, migrate to the NXP S32K family.
Recommended
Recommended Products Summary
Engineering reference data for MC9S12DJ64MFUE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S12DJ128MFUE | MC9S12A64MFUE | MC9S12D64MFUE | MC9S12DG128MFUE | MC9S12DP512MFUE |
|---|---|---|---|---|---|---|
| Package | 80-QFP (14x14 mm) | 80-QFP (14x14 mm) - same | 80-QFP (14x14 mm) - same | 80-QFP (14x14 mm) - same | 80-QFP (14x14 mm) - same | 80-QFP (14x14 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit |
| CPU Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Flash Memory | 64 KB | 128 KB (+100%) | 64 KB (same) | 64 KB (same) | 128 KB (+100%) | 512 KB (+700%) |
| CAN Modules | 2x msCAN 2.0 A/B | 2x msCAN 2.0 A/B | 1x msCAN 2.0 A/B (-50%) | 0x msCAN (-100%, none) | 2x msCAN 2.0 A/B | 5x msCAN 2.0 A/B (+150%) |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- Dual msCAN 2.0 A/B controllers (vs MC9S12D64MFUE)
- Identical 64 KB Flash with upgraded peripherals (vs MC9S12A64MFUE)
- Aggressive pin-for-pin upgrade path to 128 KB and 512 KB (vs MC9S12DJ128MFUE and MC9S12DP512MFUE)
Design Notes
Estimated: at 25 MHz CPU clock and all peripherals active, the MC9S12DJ64MFUE draws approximately 50-60 mA from the 5 V supply. Use a 1 µF ceramic bypass cap directly on every VDD/VDDR pin and a 47 µF tantalum or 100 µF aluminum bulk cap on the main 5 V rail. The internal 2.5 V regulator supplying the core requires a 4.7 µF low-ESR ceramic on the VDDC pin within 5 mm of the package; otherwise the core sees undervoltage during high-speed PLL bursts and may reset unpredictably.
The 4 MHz external crystal (or resonator) must be placed within 5 mm of the EXTAL/XTAL pins with short, symmetrical traces and a grounded guard ring around each. The BDM pin (BKGD) is sensitive to capacitive loading above 50 pF and should be guarded with a series resistor near the pin when long debug cable leads are used, since long cables exceeding 30 cm can introduce signal integrity issues at programming time. Place ADC analog power (VDDA) tracks with a star topology or ferrite filter from the digital 5 V rail to reduce switching noise on the analog reference voltage.
Do not assume the NRND status equates to immediate obsolescence: confirm with NXP or your authorized distributor the exact last-time-buy date before declaring the part EOL. The 1 KB byte-erasable EEPROM has a 100 K endurance rating per the family spec, so it should be used only for infrequently updated non-volatile parameters (seat memory, calibration values) - rapid cyclic data belongs in RAM/Flash-emulation region. The msCAN module requires configured bit timing per the crystal clock; running CAN before BDM-style tuning can lock up the bus controller.
The 80-QFP package has a theta-JA of approximately 50 C/W on a standard 2s2p 1-oz FR4 board. Estimated: at -40C ambient minimum, internal heating is negligible; at +125C ambient for under-hood applications, designers should aim to keep total power dissipation below 0.5 W or attach a small heat spreader. Automotive under-dash modules rarely exceed 0.2 W on this part in real-world conditions.
Compliance Information
NRND lifecycle status applies. AEC-Q100 qualified per NXP MC9S12D family documentation; RoHS and REACH compliant. Halogen-free per package datasheet marking convention.