MC9S12DJ128BCFU - 16-bit 128KB Flash HCS12 MCU | NXP
部品番号: MC9S12DJ128BCFU ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $12.75 | $127.50 |
| 100 | $11.2 | $1,120.00 |
| 500 | $9.85 | $4,925.00 |
| 1,000 | $8.4 | $8,400.00 |
MC9S12DJ128BCFU 概要
What is an HCS12 microcontroller? HCS12 (also called S12) is NXP's (formerly Motorola/Freescale) 16-bit CISC microcontroller family using a memory-mapped register architecture and a rich instruction set that evolved from the HC11. HCS12 devices sit within the broader hierarchy of automotive microcontrollers -> 16-bit microcontrollers -> microcontrollers (MCUs) -> embedded processors -> semiconductors. The DJ sub-family adds dual CAN modules and enhanced I/O for body control modules.
Key features include 59 general-purpose I/O pins, an enhanced capture timer with PWM channels, a watchdog timer, and a 25 MHz internal bus clock derived from an external oscillator. The 80-QFP package provides ample pin count for parallel buses and analog inputs while remaining surface-mountable. The Flash memory supports in-application reprogramming via the Background Debug Mode (BDM) interface, enabling firmware updates in the field without removing the device from the PCB.
Technical depth: the HCS12 core executes most instructions in a single bus cycle and includes a multiply-and-accumulate engine useful for basic signal-processing workloads. The integrated CAN 2.0ms controller modules (msCAN) implement the Bosch CAN specification and can operate autonomously from the CPU, offloading message buffering. The 2 KB EEPROM block supports byte-erase and byte-program operations suitable for storing calibration constants and fault logs.
Typical applications include automotive body control modules, HVAC controllers, instrument clusters, industrial CAN nodes, and factory automation gateways. The dual CAN ports allow the device to act as a gateway between two automotive networks, such as powertrain CAN and body CAN.
When designing with this device, ensure the BDM interface is brought out to a header for in-circuit debugging and field firmware updates. The 5V analog supply rail (VDDA) and 5V digital supply rail (VDDR) should be decoupled separately to prevent digital switching noise from coupling into ADC conversions.
This page synthesizes NXP datasheet specifications, distributor pricing, drop-in alternatives within the HCS12 family, and practical design notes not found on a single distributor page.
ドロップイン代替品: MC9S12DJ128BCFU — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MC9S12DJ128BCFU （同一形状・フットプリント） — 相違点: ADC, Package, RoHS Status, Supply Voltage, Connectivity.
クイック比較ツール — 並列比較する代替部品を選択:
MC9S12DT128BCFU
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC9S12DJ128BCPV
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$10.05 / 個
データシートを見る →MC9S12DJ128CFU
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC9S12DG128BCFU
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$9.75 / 個
データシートを見る →MC9S12DP512BCFU
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
S9S12G128F0MLFR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC9S12DJ128BCFU 最大定格＆電気的特性
| Core Processor | HCS12 |
| Core Size | 16-Bit |
| Core Architecture | CISC |
| Maximum Clock Speed | 25 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 8 KB (8K x 8) |
| EEPROM Size | 2 KB (2K x 8) |
| Number of I/O Pins | 59 |
| パッケージ | 80-QFP (PQFP, 14x14 mm) |
| 電源電圧 | 2.5 V / 5 V (dual voltage) |
| Connectivity | CANbus (2x msCAN), I2C, SCI, SPI |
| Peripherals | PWM, WDT, Enhanced Capture Timer |
| Automotive Qualification | AEC-Q100 |
| 実装タイプ | Surface Mount |
MC9S12DJ128BCFU ピン構成
| ピン 1 | VSSR — Digital ground reference for voltage regulator |
| ピン 2 | VDDR — External 5V supply for digital I/O and voltage regulator |
| ピン 3 | VDDX — External 5V (or 3.3V) supply for I/O drivers |
| ピン 4 | VSSX — I/O ground |
| ピン 5 | BKGD — Background Debug Mode pin |
| ピン 6 | MODC — Mode control (with PE0) |
| ピン 7 | RESET — External reset input, active low |
| ピン 8 | XTAL — Crystal oscillator input |
| ピン 9 | EXTAL — External clock input / crystal connection |
| ピン 10 | VSSPLL — PLL ground |
| ピン 11 | VDDPLL — PLL supply (2.5V) |
| ピン 12 | XFC — PLL loop filter capacitor |
| ピン 13 | PE0/MODB — Port E bit 0 / mode select B |
| ピン 14 | PE1 — Port E bit 1 |
| ピン 15 | PE2 — Port E bit 2 |
| ピン 16 | PE3 — Port E bit 3 |
| ピン 17 | PE4 — Port E bit 4 |
| ピン 18 | PE5 — Port E bit 5 |
| ピン 19 | PE6 — Port E bit 6 |
| ピン 20 | PE7 — Port E bit 7 |
| ピン 21 | PAD00 — Analog input ATD channel 0 / Port AD bit 0 |
| ピン 22 | PAD01 — Analog input ATD channel 1 |
| ピン 23 | PAD02 — Analog input ATD channel 2 |
| ピン 24 | PAD03 — Analog input ATD channel 3 |
| ピン 25 | PAD04 — Analog input ATD channel 4 |
| ピン 26 | PAD05 — Analog input ATD channel 5 |
| ピン 27 | PAD06 — Analog input ATD channel 6 |
| ピン 28 | PAD07 — Analog input ATD channel 7 |
| ピン 29 | VDDA — Analog supply (5V) |
| ピン 30 | VSSA — Analog ground |
| ピン 31 | VRL — ATD reference low |
| ピン 32 | VRH — ATD reference high |
| ピン 33 | PS0 — Port S bit 0 (PWM / timer channel) |
| ピン 34 | PS1 — Port S bit 1 |
| ピン 35 | PS2 — Port S bit 2 |
| ピン 36 | PS3 — Port S bit 3 |
| ピン 37 | PS4 — Port S bit 4 |
| ピン 38 | PS5 — Port S bit 5 |
| ピン 39 | PS6 — Port S bit 6 |
| ピン 40 | PS7 — Port S bit 7 |
| ピン 41 | PT0 — Port T bit 0 (IOC0) |
| ピン 42 | PT1 — Port T bit 1 (IOC1) |
| ピン 43 | PT2 — Port T bit 2 (IOC2) |
| ピン 44 | PT3 — Port T bit 3 (IOC3) |
| ピン 45 | PT4 — Port T bit 4 (IOC4) |
| ピン 46 | PT5 — Port T bit 5 (IOC5) |
| ピン 47 | PT6 — Port T bit 6 (IOC6) |
| ピン 48 | PT7 — Port T bit 7 (IOC7) |
| ピン 49 | PM0 — Port M bit 0 (CAN-A TX) |
| ピン 50 | PM1 — Port M bit 1 (CAN-A RX) |
| ピン 51 | PM2 — Port M bit 2 (CAN-B TX) |
| ピン 52 | PM3 — Port M bit 3 (CAN-B RX) |
| ピン 53 | PM4 — Port M bit 4 |
| ピン 54 | PM5 — Port M bit 5 |
| ピン 55 | PM6 — Port M bit 6 |
| ピン 56 | PM7 — Port M bit 7 |
| ピン 57 | PJ0 — Port J bit 0 (SCL / I2C SCL) |
| ピン 58 | PJ1 — Port J bit 1 (SDA / I2C SDA) |
| ピン 59 | PJ6 — Port J bit 6 (TXD0 / SCI0) |
| ピン 60 | PJ7 — Port J bit 7 (RXD0 / SCI0) |
| ピン 61 | PK0 — Port K bit 0 |
| ピン 62 | PK1 — Port K bit 1 |
| ピン 63 | PK2 — Port K bit 2 |
| ピン 64 | PK3 — Port K bit 3 |
| ピン 65 | PK4 — Port K bit 4 |
| ピン 66 | PK5 — Port K bit 5 |
| ピン 67 | PK6 — Port K bit 6 |
| ピン 68 | PK7 — Port K bit 7 |
| ピン 69 | PA0 — Port A bit 0 (PWM0) |
| ピン 70 | PA1 — Port A bit 1 (PWM1) |
| ピン 71 | PA2 — Port A bit 2 (PWM2) |
| ピン 72 | PA3 — Port A bit 3 (PWM3) |
| ピン 73 | PA4 — Port A bit 4 (PWM4) |
| ピン 74 | PA5 — Port A bit 5 (PWM5) |
| ピン 75 | PA6 — Port A bit 6 (PWM6) |
| ピン 76 | PA7 — Port A bit 7 (PWM7) |
| ピン 77 | PB0 — Port B bit 0 (OC0) |
| ピン 78 | PB1 — Port B bit 1 (OC1) |
| ピン 79 | PB2 — Port B bit 2 (OC2) |
| ピン 80 | PB3 — Port B bit 3 (OC3) |
主な用途
MC9S12DJ128BCFU の用途: 7 件s: Automotive Body Control Module, CAN Gateway / Network Bridge, HVAC Control Module, Industrial CANopen Node, Instrument Cluster Display Controller, Battery Management Slave Module, Motor Controller (BLDC / PMSM FOC).
Automotive Body Control Module
The MC9S12DJ128BCFU is a core MCU for automotive body control modules (BCMs) that manage lighting, door locks, wipers, and accessory loads. Its dual msCAN 2.0 controllers allow the BCM to communicate on both the body-CAN (typically 125 kbps) and chassis-CAN (500 kbps) segments simultaneously, bridging messages between networks. With 128 KB Flash the device stores BCM application firmware plus diagnostic routines; the 8 KB RAM accommodates CAN mailboxes, switch-debounce buffers, and PWM channel state. The 59 GPIO pins drive LED drivers, relay coils, and switch inputs. AEC-Q100 qualification allows deployment under the hood or in door modules where temperatures reach +85 C.
おすすめ
CAN Gateway / Network Bridge
The two independent msCAN modules in the MC9S12DJ128BCFU make it ideal as a gateway MCU bridging two CAN networks - for example a powertrain CAN (1 Mbps) segment and a body CAN (125 kbps) segment inside a vehicle electrical architecture. The HCS12 core filters and forwards messages between buses while running higher-layer diagnostics. With 25 MHz bus clock, message routing latency stays below 200 us even at peak bus load. Flash supports OTA gateway-table updates via UDS over CAN, and the 2 KB EEPROM stores the network configuration persistently across power cycles.
おすすめ
HVAC Control Module
HVAC control modules use the MC4AT95 16-bit ADC block to read cabin temperature sensors, blend-door position feedback, and coolant temperatures. The MC9S12DJ128BCFU's enhanced capture timer drives PWM outputs that command the blower motor speed and blend-door actuators with 8-bit resolution. Flash stores HVAC calibration maps; the 2 KB EEPROM retains user setpoints (driver temperature, fan speed) after ignition off. The dual msCAN lets the HVAC module participate in body-CAN diagnostics and receive setpoint commands from the infotainment cluster, while the SCI/UART debugs the unit during factory end-of-line programming.
おすすめ
Industrial CANopen Node
In factory automation the MC9S12DJ128BCFU operates as a CANopen slave node controlling valve manifolds, I/O blocks, or motor starters. The msCAN controller implements the CANopen CiA 301 protocol stack with object dictionaries stored in the 2 KB EEPROM. The 25 MHz HCS12 core handles SDO/PDO processing with sub-millisecond cycle times. The 80-QFP package's 59 GPIO pins interface to local digital I/O, encoder feedback, and 24V opto-isolated inputs. AEC-Q100 qualification is acceptable for industrial environments and provides extra reliability margin over commercial-only parts.
おすすめ
Instrument Cluster Display Controller
Instrument clusters use the MC9S12DJ128BCFU to drive stepper-motor gauge pointers and segment-LCD displays via SPI. The enhanced capture timer generates the precise step pulses for X-by-wire gauges, while the SPI bus streams graphics data to an external LCD driver. The 128 KB Flash stores multiple gauge-face bitmaps and language fonts; 8 KB RAM buffers the active screen. The single msCAN pulls vehicle speed, RPM, and fuel-level messages from the body-CAN bus. AEC-Q100 qualification suits the +85 C cabin environment behind the dashboard.
おすすめ
Battery Management Slave Module
Battery management systems (BMS) for traction packs use the MC9S12DJ128BCFU as a slave controller that monitors individual cell voltages and temperatures via the on-chip ATD converter and SPI-attached AFE chips. The dual msCAN ports allow the BMS slave to communicate on the internal battery CAN bus while also exposing diagnostics on the vehicle body CAN. The 2 KB EEPROM stores cell-balancing parameters and lifetime cycle counts; 128 KB Flash holds the safety firmware. AEC-Q100 plus 5V analog capability simplify cell-voltage measurements in 12V/24V battery packs.
おすすめ
Motor Controller (BLDC / PMSM FOC)
Low-voltage motor controllers for fans, pumps, and small traction motors run sensorless FOC on the MC9S12DJ128BCFU. The enhanced capture timer samples back-EMF via the ATD converter and generates the 6-PWM signals for the three-phase inverter. Flash holds the FOC lookup tables and PI-controller constants; 8 KB RAM stores Park/Clarke transform intermediate values. The msCAN bus receives torque commands from the vehicle controller. 25 MHz is sufficient for FOC loops at PWM frequencies up to 20 kHz on a 50 us control period.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MC9S12DJ128BCFU — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MC9S12DT128BCFU | MC9S12DJ128BCPV | MC9S12DJ128CFU | MC9S12DG128BCFU | MC9S12DP512BCFU |
|---|---|---|---|---|---|---|
| Package | 80-QFP (14x14 mm) | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS12, 16-bit, 25 MHz | HCS12, 16-bit, 25 MHz | HCS12, 16-bit, 25 MHz | HCS12, 16-bit, 25 MHz | HCS12, 16-bit, 25 MHz | HCS12, 16-bit, 25 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 512 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 32 KB |
| EEPROM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 4 KB |
| CAN Controllers | 2x msCAN 2.0 | 2x msCAN 2.0 | 2x msCAN 2.0 | 2x msCAN 2.0 | 1x msCAN + extra SCI | 2x msCAN 2.0 |
| AEC-Q100 Qualified | Yes | Yes | No (commercial/industrial grade) | No (commercial grade) | Yes | Yes |
主な差別化要因
- Dual msCAN 2.0 controllers in a single MCU （vs MC9S12DG128BCFU)
- On-chip 2 KB EEPROM for persistent data storage （vs MC9S12DT128BCFU)
- AEC-Q100 automotive qualification on the BCFU suffix （vs MC9S12DJ128CFU)
設計ノート
The MC9S12DJ128BCFU requires a dual-rail supply: 5V on VDDR/VDDX/VDDA plus an internal 2.5V core regulator derived from VDDR. Decouple each VDD pin with a 100 nF ceramic plus 10 uF bulk within 5 mm of the pin. Tie VDDX and VDDR together if a single 5V rail is acceptable; otherwise route VDDA through a ferrite bead to isolate analog noise from digital switching. The internal voltage regulator requires a 1 uF low-ESR capacitor on the VDDPLL pin and a 100 nF on each VDD pin.
Do not leave the BKGD (Background Debug Mode) pin floating - tie it to VDDX through a 10 kohm pull-up or directly driven by the BDM tool. A floating BKGD can cause spurious reset events during power-up. The RESET pin is bidirectional; provide an external 4.7 kohm pull-up to VDDX plus a 1 nF capacitor to VSSX to debounce mechanical reset buttons. The XFC pin is the PLL filter node and must NOT be loaded with anything except the specified loop-filter capacitor (typically 5.6 nF).
Route the msCAN TX/RX pairs (PM0/PM1 and PM2/PM3) as 50 ohm differential microstrips with length matching within 5 mm to the external CAN transceiver (e.g., TJA1042). Place the transceiver within 50 mm of the MCU and keep the bus-side traces away from switching signals. The 80-QFP package's 0.65 mm pitch requires at least 4-layer PCB with 0.2 mm via-in-pad if BGA-style breakout is used, or 0.4 mm through-hole vias for standard breakout. Provide a copper pour under the entire package and stitch with thermal vias to ground for thermal dissipation.
The external crystal (XTAL/EXTAL) should be a fundamental-mode AT-cut type with load capacitance matched to the on-chip oscillator (typically 16-20 pF). Place the crystal within 5 mm of the MCU, route the traces over a continuous ground plane, and surround the crystal with a guard ring tied to ground. Avoid routing noisy signals (PWM, CAN) within 3 mm of the crystal traces. If an external clock is used, drive EXTAL with a CMOS-level source and leave XTAL floating.
コンプライアンス情報
AEC-Q100 qualification confirmed via NXP product documentation. RoHS/REACH/lead-free status not stated in the verified web data - mark as 'unknown' and consult NXP compliance letter before PCBA assembly.