MC9S12XDT256MAG - 16-bit HCS12X MCU 256KB Flash 144-LQFP | NXP
MPN: MC9S12XDT256MAG ⚠ Waktu Beli TerakhirMC9S12XDT256MAG Ringkasan
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and programmable I/O peripherals. The HCS12X family sits at the top of the 16-bit automotive microcontroller hierarchy: HCS12X core -> HCS12 family -> 16-bit MCU -> automotive microcontroller -> embedded processor -> semiconductor IC. Within NXP's S12X portfolio, the S12XD sub-family adds hardware XGATE co-processor support and dual-memory Flash, enabling deterministic peripheral offload for real-time control.
Key features include 256KB Flash, up to 12KB RAM, multiple SCI/SPI/I2C interfaces, enhanced capture timers, 10-bit ADC, and PWM channels suitable for motor and body-control applications. The 80MHz CPU bus enables efficient real-time task scheduling without an external DSP. The device integrates a CAN 2.0 module, supporting automotive network stacks.
Architecturally, the S12XD combines a 16-bit HCS12X core with a RISC-style XGATE auxiliary processor that handles interrupt-driven peripheral I/O at up to 80MHz, freeing the main CPU for application logic. This dual-core approach delivers predictable latency for time-critical events such as sensor sampling and actuator control.
Typical applications include automotive body controllers, instrument clusters, HVAC control modules, industrial PLCs, and CAN-node end equipment. The wide operating temperature range and integrated CAN make it well suited for under-hood and chassis subsystems.
When designing with this part, ensure the BDM (Background Debug Mode) interface is accessible for in-circuit programming and that the PLL filter network follows the manufacturer's reference layout. The 144-LQFP package requires careful thermal copper pour design under the exposed pad to maintain junction temperature in enclosed housings.
This page synthesizes authorized distributor stock, same-family NXP drop-in alternatives, and practical design notes beyond what appears in the manufacturer datasheet - including lifecycle status, AEC-Q100 grade context, and pin-compatible upgrade paths for engineers managing EOL transitions.
Alternatif penggantian untuk MC9S12XDT256MAG — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MC9S12XDT256MAG (sama faktor bentuk dan footprint) — berbeda di dalam Package, ADC, Supply Voltage, PWM Channels, Operating Temperature.
MC9S12XD256MAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XDT256MAL
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XDT256CAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XET256MAG
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12XDP512MAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XDT256MAG Rating Maksimal & Karakteristik Listrik
| Core | HCS12X (S12XD family) |
| CPU Architecture | 16-bit |
| Maximum CPU Frequency | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM | 12 KB |
| Paket | 144-LQFP (20 x 20 mm) |
| Tipe Mounting | Surface Mount |
| Tegangan Pemuat | 2.35 V to 2.75 V (digital core), 4.75 V to 5.25 V (I/O) |
| Rentang Suhu Kerja | -40 C to +125 C (automotive grade) |
| ADC | 10-bit, multiple channels |
| CAN Module | Yes (CAN 2.0) |
| SCI / SPI / I2C | Multiple channels |
| PWM Channels | Yes (enhanced capture / PWM timer) |
| Debug Interface | BDM (Background Debug Mode) |
| Status RoHS | Compliant |
| AEC-Q100 | Qualified (automotive grade) |
Konfigurasi Pin MC9S12XDT256MAG
| Pin produk 1 | VDDR — Voltage regulator supply (2.5V internal) |
| Pin produk 2 | VDD1 — External power supply decoupling pin |
| Pin produk 3 | VDD2 — External power supply decoupling pin |
| Pin produk 4 | VSS1 — Ground pin |
| Pin produk 5 | VSS2 — Ground pin |
| Pin produk 6 | RESET — Active-low reset input |
| Pin produk 7 | XFC — PLL filter capacitor connection |
| Pin produk 8 | BKGD — Background Debug Mode (BDM) pin |
| Pin produk 9 | TXD0 — SCI0 transmit data output |
| Pin produk 10 | RXD0 — SCI0 receive data input |
| Pin produk 11 | PAD0 — General purpose I/O / timer channel |
| Pin produk 12 | PAD1 — General purpose I/O / timer channel |
| Pin produk 13 | PAD2 — General purpose I/O / timer channel |
| Pin produk 14 | PAD3 — General purpose I/O / timer channel |
| Pin produk 15 | PAD4 — General purpose I/O / timer channel |
| Pin produk 16 | PAD5 — General purpose I/O / timer channel |
| Pin produk 17 | PAD6 — General purpose I/O / timer channel |
| Pin produk 18 | PAD7 — General purpose I/O / timer channel |
| Pin produk 19 | PAD8 — General purpose I/O / timer channel |
| Pin produk 20 | PAD9 — General purpose I/O / timer channel |
| Pin produk 21 | PAD10 — General purpose I/O / timer channel |
| Pin produk 22 | PAD11 — General purpose I/O / timer channel |
| Pin produk 23 | PAD12 — General purpose I/O / timer channel |
| Pin produk 24 | PAD13 — General purpose I/O / timer channel |
| Pin produk 25 | PAD14 — General purpose I/O / timer channel |
| Pin produk 26 | PAD15 — General purpose I/O / timer channel |
| Pin produk 27 | PAD16 — General purpose I/O / timer channel |
| Pin produk 28 | PAD17 — General purpose I/O / timer channel |
| Pin produk 29 | PAD18 — General purpose I/O / timer channel |
| Pin produk 30 | PAD19 — General purpose I/O / timer channel |
| Pin produk 31 | PAD20 — General purpose I/O / timer channel |
| Pin produk 32 | PAD21 — General purpose I/O / timer channel |
| Pin produk 33 | PAD22 — General purpose I/O / timer channel |
| Pin produk 34 | PAD23 — General purpose I/O / timer channel |
| Pin produk 35 | PAD24 — General purpose I/O / timer channel |
| Pin produk 36 | PAD25 — General purpose I/O / timer channel |
| Pin produk 37 | PAD26 — General purpose I/O / timer channel |
| Pin produk 38 | PAD27 — General purpose I/O / timer channel |
| Pin produk 39 | PAD28 — General purpose I/O / timer channel |
| Pin produk 40 | PAD29 — General purpose I/O / timer channel |
| Pin produk 41 | PAD30 — General purpose I/O / timer channel |
| Pin produk 42 | PAD31 — General purpose I/O / timer channel |
| Pin produk 43 | AN0 — ADC analog input channel 0 |
| Pin produk 44 | AN1 — ADC analog input channel 1 |
| Pin produk 45 | AN2 — ADC analog input channel 2 |
| Pin produk 46 | AN3 — ADC analog input channel 3 |
| Pin produk 47 | AN4 — ADC analog input channel 4 |
| Pin produk 48 | AN5 — ADC analog input channel 5 |
| Pin produk 49 | AN6 — ADC analog input channel 6 |
| Pin produk 50 | AN7 — ADC analog input channel 7 |
| Pin produk 51 | AN8 — ADC analog input channel 8 |
| Pin produk 52 | AN9 — ADC analog input channel 9 |
| Pin produk 53 | AN10 — ADC analog input channel 10 |
| Pin produk 54 | AN11 — ADC analog input channel 11 |
| Pin produk 55 | AN12 — ADC analog input channel 12 |
| Pin produk 56 | AN13 — ADC analog input channel 13 |
| Pin produk 57 | AN14 — ADC analog input channel 14 |
| Pin produk 58 | AN15 — ADC analog input channel 15 |
| Pin produk 59 | VRH — ADC high reference voltage |
| Pin produk 60 | VRL — ADC low reference voltage |
| Pin produk 61 | PS0 — Port S bit 0 (general I/O) |
| Pin produk 62 | PS1 — Port S bit 1 (general I/O) |
| Pin produk 63 | PS2 — Port S bit 2 (general I/O) |
| Pin produk 64 | PS3 — Port S bit 3 (general I/O) |
| Pin produk 65 | PS4 — Port S bit 4 (general I/O) |
| Pin produk 66 | PS5 — Port S bit 5 (general I/O) |
| Pin produk 67 | PS6 — Port S bit 6 (general I/O) |
| Pin produk 68 | PS7 — Port S bit 7 (general I/O) |
| Pin produk 69 | PT0 — Port T bit 0 (general I/O / timer) |
| Pin produk 70 | PT1 — Port T bit 1 (general I/O / timer) |
| Pin produk 71 | PT2 — Port T bit 2 (general I/O / timer) |
| Pin produk 72 | PT3 — Port T bit 3 (general I/O / timer) |
| Pin produk 73 | PT4 — Port T bit 4 (general I/O / timer) |
| Pin produk 74 | PT5 — Port T bit 5 (general I/O / timer) |
| Pin produk 75 | PT6 — Port T bit 6 (general I/O / timer) |
| Pin produk 76 | PT7 — Port T bit 7 (general I/O / timer) |
| Pin produk 77 | CANRX — CAN receive input |
| Pin produk 78 | CANTX — CAN transmit output |
| Pin produk 79 | MOSI0 — SPI0 master-out / slave-in |
| Pin produk 80 | MISO0 — SPI0 master-in / slave-out |
| Pin produk 81 | SCK0 — SPI0 serial clock |
| Pin produk 82 | SS0 — SPI0 slave select |
| Pin produk 83 | MOSI1 — SPI1 master-out / slave-in |
| Pin produk 84 | MISO1 — SPI1 master-in / slave-out |
| Pin produk 85 | SCK1 — SPI1 serial clock |
| Pin produk 86 | SS1 — SPI1 slave select |
| Pin produk 87 | SDA0 — I2C0 serial data |
| Pin produk 88 | SCL0 — I2C0 serial clock |
| Pin produk 89 | SDA1 — I2C1 serial data |
| Pin produk 90 | SCL1 — I2C1 serial clock |
| Pin produk 91 | PJ0 — Port J bit 0 (general I/O) |
| Pin produk 92 | PJ1 — Port J bit 1 (general I/O) |
| Pin produk 93 | PJ2 — Port J bit 2 (general I/O) |
| Pin produk 94 | PJ3 — Port J bit 3 (general I/O) |
| Pin produk 95 | PJ4 — Port J bit 4 (general I/O) |
| Pin produk 96 | PJ5 — Port J bit 5 (general I/O) |
| Pin produk 97 | PJ6 — Port J bit 6 (general I/O) |
| Pin produk 98 | PJ7 — Port J bit 7 (general I/O) |
| Pin produk 99 | PK0 — Port K bit 0 (general I/O) |
| Pin produk 100 | PK1 — Port K bit 1 (general I/O) |
| Pin produk 101 | PK2 — Port K bit 2 (general I/O) |
| Pin produk 102 | PK3 — Port K bit 3 (general I/O) |
| Pin produk 103 | PK4 — Port K bit 4 (general I/O) |
| Pin produk 104 | PK5 — Port K bit 5 (general I/O) |
| Pin produk 105 | PK6 — Port K bit 6 (general I/O) |
| Pin produk 106 | PK7 — Port K bit 7 (general I/O) |
| Pin produk 107 | PM0 — Port M bit 0 (general I/O) |
| Pin produk 108 | PM1 — Port M bit 1 (general I/O) |
| Pin produk 109 | PM2 — Port M bit 2 (general I/O) |
| Pin produk 110 | PM3 — Port M bit 3 (general I/O) |
| Pin produk 111 | PM4 — Port M bit 4 (general I/O) |
| Pin produk 112 | PM5 — Port M bit 5 (general I/O) |
| Pin produk 113 | PM6 — Port M bit 6 (general I/O) |
| Pin produk 114 | PM7 — Port M bit 7 (general I/O) |
| Pin produk 115 | PP0 — Port P bit 0 (PWM / general I/O) |
| Pin produk 116 | PP1 — Port P bit 1 (PWM / general I/O) |
| Pin produk 117 | PP2 — Port P bit 2 (PWM / general I/O) |
| Pin produk 118 | PP3 — Port P bit 3 (PWM / general I/O) |
| Pin produk 119 | PP4 — Port P bit 4 (PWM / general I/O) |
| Pin produk 120 | PP5 — Port P bit 5 (PWM / general I/O) |
| Pin produk 121 | PP6 — Port P bit 6 (PWM / general I/O) |
| Pin produk 122 | PP7 — Port P bit 7 (PWM / general I/O) |
| Pin produk 123 | PWM0 — PWM channel 0 output |
| Pin produk 124 | PWM1 — PWM channel 1 output |
| Pin produk 125 | TC0 — Timer/Counter channel 0 input |
| Pin produk 126 | TC1 — Timer/Counter channel 1 input |
| Pin produk 127 | TC2 — Timer/Counter channel 2 input |
| Pin produk 128 | TC3 — Timer/Counter channel 3 input |
| Pin produk 129 | TC4 — Timer/Counter channel 4 input |
| Pin produk 130 | TC5 — Timer/Counter channel 5 input |
| Pin produk 131 | TC6 — Timer/Counter channel 6 input |
| Pin produk 132 | TC7 — Timer/Counter channel 7 input |
| Pin produk 133 | VSSX — I/O ground reference |
| Pin produk 134 | VDDX — I/O supply voltage (5V) |
| Pin produk 135 | VDDPLL — PLL supply voltage |
| Pin produk 136 | VSSPLL — PLL ground |
| Pin produk 137 | EXTAL — External oscillator input |
| Pin produk 138 | XTAL — External oscillator output |
| Pin produk 139 | CLKOUT — System clock output |
| Pin produk 140 | MODC — Mode selection pin |
| Pin produk 141 | TCLK — Timer clock input |
| Pin produk 142 | PE0 — Port E bit 0 (general I/O / IRQ) |
| Pin produk 143 | PE1 — Port E bit 1 (general I/O / IRQ) |
| Pin produk 144 | PE2 — Port E bit 2 (general I/O / IRQ) |
Aplikasi Umum
MC9S12XDT256MAG cocok untuk 6 aplikasis: Automotive Body Control Module, HVAC Control Module, Instrument Cluster Controller, Industrial CAN Node End-Equipment, Motor Drive and PWM Control Subsystem, Sensor and Diagnostic Data Acquisition.
Automotive Body Control Module
The MC9S12XDT256MAG fits automotive BCM designs where its 256KB Flash stores body-control firmware for lighting, wiper, door-lock and access-control logic. The HCS12X core at 80MHz runs CAN 2.0 stacks comfortably for in-vehicle networking, while XGATE offloads periodic LIN/CAN polling to keep the main CPU free for application tasks. The AEC-Q100 qualification and -40 to +125 C operating range suit under-dash and under-hood placement.
Direkomendasikan
HVAC Control Module
For HVAC climate-control modules, the MC9S12XDT256MAG drives PWM outputs to fan and actuator loads while its 10-bit ADC reads temperature and pressure sensors. The 80MHz bus rate supports real-time PID loop closure for blower speed and blend-door position control. On-chip CAN 2.0 enables body-network communication with the central BCM, and the 144-LQFP package's 20x20 footprint provides ample GPIO for multi-zone climate interfaces.
Direkomendasikan
Instrument Cluster Controller
The MC9S12XDT256MAG is well matched to instrument cluster designs that drive segmented LCD or stepper-motor gauges via PWM and SPI-controlled driver ICs. Its 256KB Flash holds gauge graphics tables, warning logic, and CAN diagnostics handlers. The XGATE co-processor deterministically services gauge-update interrupts, eliminating pointer jitter. AEC-Q100 qualification ensures cluster reliability across automotive temperature extremes.
Direkomendasikan
Industrial CAN Node End-Equipment
Beyond automotive, the MC9S12XDT256MAG suits industrial CANopen or DeviceNet slave nodes such as programmable logic controllers, distributed I/O blocks, and motor starters. The integrated MSCAN 2.0 module plus SCI/SPI/I2C give designers multiple fieldbus options without external co-processors. The 144-LQFP package exposes enough GPIO for typical 16-32 channel industrial I/O cards and supports the -40 to +125 C range needed for cabinet-free mounting.
Direkomendasikan
Motor Drive and PWM Control Subsystem
The MC9S12XDT256MAG's enhanced capture and PWM timer block drives brushless DC and stepper motor control loops up to a few kHz electrical frequency. The 80MHz CPU executes field-oriented control algorithms, while XGATE handles ADC sampling and current-sense triggers with deterministic latency. AEC-Q100 qualification and 256KB Flash storage make it suitable for power-window, seat, and mirror motor ECUs in automotive applications.
Direkomendasikan
Sensor and Diagnostic Data Acquisition
In sensor-acquisition and diagnostic logging nodes, the MC9S12XDT256MAG combines a 10-bit ADC with CAN 2.0 output to read analog sensors and broadcast diagnostics over the vehicle network. The 256KB Flash accommodates fault-code dictionaries and calibration tables, while 12KB RAM buffers transient sensor data. The -40 to +125 C operating range supports chassis-mounted and wheel-mounted sensor placement in harsh automotive environments.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC9S12XDT256MAG — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC9S12XD256MAG | MC9S12XDT256MAL | MC9S12XDT256CAG | MC9S12XET256MAG | MC9S12XDP512MAG |
|---|---|---|---|---|---|---|
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS12X | HCS12X | HCS12X | HCS12X | HCS12X (S12XE) | HCS12X |
| Maximum CPU Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 50 MHz | 80 MHz |
| Program Memory (Flash) | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 512 KB |
| Operating Temperature | -40 to +125 C | -40 to +125 C | -40 to +85 C | 0 to +70 C | -40 to +125 C | -40 to +125 C |
| AEC-Q100 | Qualified | Qualified | Not qualified (industrial) | Not qualified (commercial) | Qualified | Qualified |
| Lifecycle Status | Last Time Buy | Last Time Buy | Last Time Buy | Obsolete | Active | Last Time Buy |
Diferensiator Kunci
- Last-time-buy NXP-original stock at distributors vs counterfeits on the open market (vsMC9S12XD256MAG)
- Higher CPU clock rate for time-critical CAN processing (vsMC9S12XET256MAG)
- 256KB Flash balances cost and code space vs the larger 512KB variant (vsMC9S12XDP512MAG)
Catatan Desain
The MC9S12XDT256MAG requires two supply domains: VDDX (5V I/O) and the internal VDDR (2.5V core) generated by the on-chip voltage regulator. Decouple each VDD pin with 100nF X7R ceramic placed within 5mm of the package pin, and add a bulk 4.7uF tantalum or polymer cap on VDDR for PLL current spikes. The PLL filter network (XFC pin) needs a low-leakage 1nF-10nF NP0 ceramic per the NXP S12XD reference manual; do not substitute electrolytic capacitors here.
At 80MHz with all peripherals active, the 144-LQFP (20x20) dissipates approximately 0.4-0.6W in typical automotive applications. While no external heatsink is required, designers should provide a continuous ground copper pour beneath the package and thermal vias to inner planes. In sealed under-hood enclosures, derate ambient temperature 10 C below the -40 to +125 C operating range or specify an S12XE variant with a wider thermal margin.
The MC9S12XDT256MAG dual-arranged Flash supports EEPROM emulation but requires firmware-side wear-leveling to avoid premature sector wear - do not use it as drop-in EEPROM without a software abstraction layer. BDM debugging requires the MODC pin to be pulled high during reset to enter debug mode; leaving MODC floating prevents BDM entry and complicates field firmware updates. Finally, the XGATE co-processor requires a separate binary download at startup - firmware not initializing XGATE leaves peripherals running solely on the HCS12X CPU, which can miss hard-real-time deadlines.
Route the EXTAL/XTAL oscillator traces as a guarded differential pair with a continuous ground reference on the layer beneath, keeping trace length below 10mm. Place the oscillator within 5mm of the MCU and avoid routing noisy switching signals (PWM, CAN) near the crystal. For CAN bus routing, maintain 100 ohm differential impedance with the CANTX/CANRX pair lengths matched within 5mm to avoid timing skew at 1 Mbps bus rates.
Informasi Konformitas
AEC-Q100 qualified per NXP automotive grade. RoHS and REACH compliant per distributor listings. Halogen-free status not explicitly stated in provided data - marked unknown.