MC9S12XD256MAG - 16-Bit HCS12X 80MHz 256KB Flash MCU | NXP
MPN: MC9S12XD256MAG ✗ Akhir HidupMC9S12XD256MAG Ringkasan
Background: HCS12X is NXP's (formerly Freescale) 16-bit microcontroller architecture, evolved from the HCS12 CISC core. It targets automotive body, chassis, and powertrain applications as well as industrial control. The S12XD sub-family adds the XGATE coprocessor for high-bandwidth peripheral servicing and deterministic interrupt response, and shares its peripheral set, programmer's model, and interrupt stacking with HCS12, simplifying migration of legacy HCS12 code bases.
Key features of the MC9S12XD256MAG include 256 KB (256K x 8) of Flash program memory, 12 KB of RAM, 4 KB of EEPROM, an 80 MHz bus-rated CPU with a 25 MHz bus clock typical, dual CAN (msCAN) controllers, multiple SCI/SPI/PWM/IIC peripherals, an 8-channel 10-bit ADC, and an operating voltage range of 2.5 V/5 V that suits automotive 5 V rails.
Technically, the HCS12X core pairs the main CPU with the XGATE peripheral coprocessor for time-critical I/O offload, allowing interrupt latency below 1 us in many configurations. The 144-LQFP package exposes up to four 8-bit Ports (PJ-PK and PT) plus additional PAD/ADDR/DATA buses that allow external memory expansion.
Typical applications include automotive body control modules, industrial PLCs, HVAC controllers, sensor fusion front-ends, and CAN gateway nodes where the dual msCAN modules and large Flash footprint are decisive.
Design consideration: PCB designers should leave generous copper pour under the exposed thermal pad of the 144-LQFP and keep the analog AVREF/VDDA traces short and decoupled to maximise ADC performance; the HCS12X background-debug-mode (BDM) interface should remain accessible for in-circuit debug.
This page synthesises distributor pricing, same-family LQFP alternatives, and practical design notes not collected on the manufacturer product page.
Alternatif penggantian untuk MC9S12XD256MAG — 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 MC9S12XD256MAG (sama faktor bentuk dan footprint) — berbeda di dalam ADC, Package, Supply Voltage, Core, Operating Temperature.
MC9S12XDT256CAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XDT256MAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XDP512MAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XDP512CAG
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12XEQ512MAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XA256MAG
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12XD256MAG Rating Maksimal & Karakteristik Listrik
| Core Architecture | HCS12X (S12XD) |
| Lebar Bus Data | 16-bit |
| CPU Clock (max) | 80 MHz |
| Program Memory | 256 KB Flash (256K x 8) |
| RAM | 12 KB |
| EEPROM | 4 KB |
| Tegangan Pemuat | 2.5 V / 5 V |
| CAN Controllers | 2 x msCAN |
| SCI | Up to 2 |
| SPI | Up to 1 |
| ADC | 8-channel, 10-bit |
| PWM Channels | 8 (standard S12 PWM) |
| XGATE Coprocessor | Yes |
| Paket | 144-LQFP (20 x 20 mm) |
| Suhu Kerja | -40C to +125C (Automotive grade) |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant |
Konfigurasi Pin MC9S12XD256MAG
| Pin produk 1 | PE1 — Port E bit 1 (general-purpose I/O, IRQ) |
| Pin produk 2 | PE0 — Port E bit 0 (general-purpose I/O, XIRQ) |
| Pin produk 3 | BKGD — Background Debug Mode |
| Pin produk 4 | RESET — External reset input (active low) |
| Pin produk 5 | VDDR |
| Pin produk 6 | VDD |
| Pin produk 7 | VSS |
| Pin produk 8 | VDDPLL — PLL supply |
| Pin produk 9 | VSSPLL — PLL ground |
| Pin produk 10 | TEST — Test mode (tie to VSS for normal operation) |
| Pin produk 11 | XCLKS — Clock select (configuration) |
| Pin produk 12 | EXTAL — External clock/crystal input |
| Pin produk 13 | XTAL — Crystal output |
| Pin produk 14 | PAD00 — External address/data bus bit 0 |
| Pin produk 15 | PAD01 — External address/data bus bit 1 |
| Pin produk 16 | PAD02 — External address/data bus bit 2 |
| Pin produk 17 | PAD03 — External address/data bus bit 3 |
| Pin produk 18 | PAD04 — External address/data bus bit 4 |
| Pin produk 19 | PAD05 — External address/data bus bit 5 |
| Pin produk 20 | PAD06 — External address/data bus bit 6 |
| Pin produk 21 | PAD07 — External address/data bus bit 7 |
| Pin produk 22 | PAD08 — External address/data bus bit 8 |
| Pin produk 23 | PAD09 — External address/data bus bit 9 |
| Pin produk 24 | PAD10 — External address/data bus bit 10 |
| Pin produk 25 | PAD11 — External address/data bus bit 11 |
| Pin produk 26 | PAD12 — External address/data bus bit 12 |
| Pin produk 27 | PAD13 — External address/data bus bit 13 |
| Pin produk 28 | PAD14 — External address/data bus bit 14 |
| Pin produk 29 | PAD15 — External address/data bus bit 15 |
| Pin produk 30 | PAD16 — External address/data bus bit 16 |
| Pin produk 31 | PAD17 — External address/data bus bit 17 |
| Pin produk 32 | PAD18 — External address/data bus bit 18 |
| Pin produk 33 | PAD19 — External address/data bus bit 19 |
| Pin produk 34 | PAD20 — External address/data bus bit 20 |
| Pin produk 35 | PAD21 — External address/data bus bit 21 |
| Pin produk 36 | PAD22 — External address/data bus bit 22 |
| Pin produk 37 | PAD23 — External address/data bus bit 23 |
| Pin produk 38 | PE2 — Port E bit 2 |
| Pin produk 39 | PE3 — Port E bit 3 |
| Pin produk 40 | PE4 — Port E bit 4 |
| Pin produk 41 | PE5 — Port E bit 5 |
| Pin produk 42 | PE6 — Port E bit 6 |
| Pin produk 43 | PE7 — Port E bit 7 |
| Pin produk 44 | PJ0 — Port J bit 0 |
| Pin produk 45 | PJ1 — Port J bit 1 |
| Pin produk 46 | PJ2 — Port J bit 2 (XIRQ) |
| Pin produk 47 | PJ3 — Port J bit 3 |
| Pin produk 48 | PJ4 — Port J bit 4 |
| Pin produk 49 | PJ5 — Port J bit 5 |
| Pin produk 50 | PJ6 — Port J bit 6 |
| Pin produk 51 | PJ7 — Port J bit 7 |
| Pin produk 52 | PK0 — Port K bit 0 |
| Pin produk 53 | PK1 — Port K bit 1 |
| Pin produk 54 | PK2 — Port K bit 2 |
| Pin produk 55 | PK3 — Port K bit 3 |
| Pin produk 56 | PK4 — Port K bit 4 |
| Pin produk 57 | PK5 — Port K bit 5 |
| Pin produk 58 | PK6 — Port K bit 6 |
| Pin produk 59 | PK7 — Port K bit 7 |
| Pin produk 60 | PA0 — Port A bit 0 |
| Pin produk 61 | PA1 — Port A bit 1 |
| Pin produk 62 | PA2 — Port A bit 2 |
| Pin produk 63 | PA3 — Port A bit 3 |
| Pin produk 64 | PA4 — Port A bit 4 |
| Pin produk 65 | PA5 — Port A bit 5 |
| Pin produk 66 | PA6 — Port A bit 6 |
| Pin produk 67 | PA7 — Port A bit 7 |
| Pin produk 68 | PB0 — Port B bit 0 |
| Pin produk 69 | PB1 — Port B bit 1 |
| Pin produk 70 | PB2 — Port B bit 2 |
| Pin produk 71 | PB3 — Port B bit 3 |
| Pin produk 72 | PB4 — Port B bit 4 |
| Pin produk 73 | PB5 — Port B bit 5 |
| Pin produk 74 | PB6 — Port B bit 6 |
| Pin produk 75 | PB7 — Port B bit 7 |
| Pin produk 76 | PC0 — Port C bit 0 |
| Pin produk 77 | PC1 — Port C bit 1 |
| Pin produk 78 | PC2 — Port C bit 2 |
| Pin produk 79 | PC3 — Port C bit 3 |
| Pin produk 80 | PC4 — Port C bit 4 |
| Pin produk 81 | PC5 — Port C bit 5 |
| Pin produk 82 | PC6 — Port C bit 6 |
| Pin produk 83 | PC7 — Port C bit 7 |
| Pin produk 84 | PD0 — Port D bit 0 |
| Pin produk 85 | PD1 — Port D bit 1 |
| Pin produk 86 | PD2 — Port D bit 2 |
| Pin produk 87 | PD3 — Port D bit 3 |
| Pin produk 88 | PD4 — Port D bit 4 |
| Pin produk 89 | PD5 — Port D bit 5 |
| Pin produk 90 | PD6 — Port D bit 6 |
| Pin produk 91 | PD7 — Port D bit 7 |
| Pin produk 92 | PP0 — Port P bit 0 (PWM, PWM channel) |
| Pin produk 93 | PP1 — Port P bit 1 (PWM) |
| Pin produk 94 | PP2 — Port P bit 2 (PWM) |
| Pin produk 95 | PP3 — Port P bit 3 (PWM) |
| Pin produk 96 | PP4 — Port P bit 4 (PWM) |
| Pin produk 97 | PP5 — Port P bit 5 (PWM) |
| Pin produk 98 | PP6 — Port P bit 6 (PWM) |
| Pin produk 99 | PP7 — Port P bit 7 (PWM) |
| Pin produk 100 | PT0 — Port T bit 0 (TIM timer input/output) |
| Pin produk 101 | PT1 — Port T bit 1 (TIM timer input/output) |
| Pin produk 102 | PT2 — Port T bit 2 (TIM timer input/output) |
| Pin produk 103 | PT3 — Port T bit 3 (TIM timer input/output) |
| Pin produk 104 | PT4 — Port T bit 4 (TIM timer input/output) |
| Pin produk 105 | PT5 — Port T bit 5 (TIM timer input/output) |
| Pin produk 106 | PT6 — Port T bit 6 (TIM timer input/output) |
| Pin produk 107 | PT7 — Port T bit 7 (TIM timer input/output) |
| Pin produk 108 | CAN0TX — CAN0 transmit |
| Pin produk 109 | CAN0RX — CAN0 receive |
| Pin produk 110 | CAN1TX — CAN1 transmit |
| Pin produk 111 | CAN1RX — CAN1 receive |
| Pin produk 112 | IICSCL — IIC clock |
| Pin produk 113 | IICSDA — IIC data |
| Pin produk 114 | SCIRX — SCI receive |
| Pin produk 115 | SCITX — SCI transmit |
| Pin produk 116 | SPI_SS — SPI slave select (GPIO) |
| Pin produk 117 | SPI_MOSI — SPI master out / slave in |
| Pin produk 118 | SPI_MISO — SPI master in / slave out |
| Pin produk 119 | SPI_SCK — SPI clock |
| Pin produk 120 | VDDA — Analog supply |
| Pin produk 121 | VSSA — Analog ground |
| Pin produk 122 | VRH — ADC high reference voltage |
| Pin produk 123 | VRL — ADC low reference voltage |
| Pin produk 124 | AN0 — ADC analog input 0 |
| Pin produk 125 | AN1 — ADC analog input 1 |
| Pin produk 126 | AN2 — ADC analog input 2 |
| Pin produk 127 | AN3 — ADC analog input 3 |
| Pin produk 128 | AN4 — ADC analog input 4 |
| Pin produk 129 | AN5 — ADC analog input 5 |
| Pin produk 130 | AN6 — ADC analog input 6 |
| Pin produk 131 | AN7 — ADC analog input 7 |
| Pin produk 132 | PWM0 — PWM channel 0 |
| Pin produk 133 | PWM1 — PWM channel 1 |
| Pin produk 134 | PWM2 — PWM channel 2 |
| Pin produk 135 | PWM3 — PWM channel 3 |
| Pin produk 136 | PWM4 — PWM channel 4 |
| Pin produk 137 | PWM5 — PWM channel 5 |
| Pin produk 138 | PWM6 — PWM channel 6 |
| Pin produk 139 | PWM7 — PWM channel 7 |
| Pin produk 140 | PE0_XIRQ — XIRQ shared with PE0 |
| Pin produk 141 | MODC — Mode control (tie to VDD for normal single-chip mode) |
| Pin produk 142 | TCLK — Timer clock input |
| Pin produk 143 | TEST2 — Test pin (tie to VSS for normal operation) |
| Pin produk 144 | EPAD — Exposed thermal pad (connect to VSS) |
Aplikasi Umum
MC9S12XD256MAG cocok untuk 6 aplikasis: Automotive Body Control Modules, Industrial HVAC and Climate Controllers, CAN Gateway and Network Bridges, Motor Control and PWM-Driven Loads, Sensor Fusion and Front-End Acquisition, Industrial PLC and Distributed I/O Nodes.
Automotive Body Control Modules
Why it fits: The MC9S12XD256MAG's dual msCAN controllers and 256 KB Flash deliver the headroom needed for BCMs that juggle comfort, lighting and diagnostics over one CAN channel while leaving the other for service. How it is used: Often paired with LIN transceivers for seat/window control and a high-side driver IC; the HCS12X 80 MHz CPU plus XGATE allows deterministic response to bus errors within about 1 us, which is useful when handling safety-critical loads. AEC-Q100-grade temperature range (-40C to +125C) and 5 V I/O keep the part directly compatible with 12 V automotive rails.
Direkomendasikan
Industrial HVAC and Climate Controllers
Why it fits: The MC9S12XD256MAG's 8-channel 10-bit ADC and 8 PWM channels map directly to temperature sensors, fan/motor drivers and valve actuators used in HVAC controllers. How it is used: Sits on a 24 V industrial rail with a small switching regulator down to 5 V, drives TRIACs through opto-isolators, and reports status via a single CAN to a central BMS. Reliable 80 MHz operation and 12 KB RAM give enough room for PID tables and fault logging without external SRAM expansion.
Direkomendasikan
CAN Gateway and Network Bridges
Why it fits: With two independent msCAN controllers and HCS12X instruction queue, MC9S12XD256MAG can route messages between two buses, filter them in RAM, and forward with sub-millisecond latency. How it is used: Typically deployed as a body-to-powertrain or CAN-to-LIN bridge, sitting between a higher-speed powertrain bus and a lower-speed body bus while handling diagnostics over UDS. The 256 KB Flash accommodates large routing tables in automotive-grade firmware.
Direkomendasikan
Motor Control and PWM-Driven Loads
Why it fits: The 8 PWM channels and 16-bit timers of MC9S12XD256MAG suit small brushless DC and stepper motor controllers for pumps, fans and small actuators. How it is used: Senses phase currents with the on-chip 10-bit ADC and commutates via PWM; HCS12X code runs vector control loops at sub-millisecond rates with XGATE offloading ADC interrupts for cleaner timing margins. The 144-LQFP footprint brings enough I/O to drive multiple half-bridges in parallel.
Direkomendasikan
Sensor Fusion and Front-End Acquisition
Why it fits: The MC9S12XD256MAG offers enough ADC and digital I/O bandwidth to aggregate inputs from pressure, temperature and position sensors before relaying them over CAN. How it is used: Front-end modules in chassis systems run ADC sampling for shock and yaw sensors, buffer timestamps in RAM, and post-processed frames onto CAN using one of the msCAN peripherals, leaving the main CPU free for diagnostics. AEC-Q100-grade temperature rating is critical for under-hood mounting.
Direkomendasikan
Industrial PLC and Distributed I/O Nodes
Why it fits: The 80 MHz HCS12X CPU and large Flash let MC9S12XD256MAG run ladder logic plus diagnostics in a single IC, eliminating a separate communications processor. How it is used: Acts as a CAN-IO node on a factory bus, scanning 8 digital inputs per ADC channel-set and driving 8 PWM outputs back to solenoids. The 4 KB EEPROM stores calibration data that survives flash upgrades, while 5 V-tolerant I/O simplifies industrial wiring without extra level shifters.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC9S12XD256MAG — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC9S12XDT256CAG | MC9S12XDT256MAG | MC9S12XDP512MAG |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) |
| Core | HCS12X 16-bit | HCS12X 16-bit | HCS12X 16-bit | HCS12X 16-bit |
| Maximum CPU Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 256 KB | 512 KB | 256 KB | 512 KB |
| RAM | 12 KB | 20 KB | 12 KB | 32 KB |
| EEPROM | 4 KB | 4 KB | 4 KB | 4 KB |
| CAN Controllers | 2 x msCAN | 2 x msCAN | 2 x msCAN | 2 x msCAN |
Diferensiator Kunci
- Optimal Flash density in the S12XD 144-LQFP family at lowest cost (vsMC9S12XDT256CAG)
- XGATE coprocessor for deterministic peripheral offload (vsMC9S12XA256MAG)
- Identical peripheral count versus higher Flash variants (vsMC9S12XDP512MAG)
Catatan Desain
Estimated: VDDR supplies the internal 1.8V regulator and must be bypassed with a 1uF X7R ceramic placed within 5 mm of the pin; the 2.5V VDDPLL rail is sensitive to noise and should be filtered through a ferrite bead. Power-on reset asserts until VDD rises above 2.4V, after which the device enters single-chip mode. A 10 kohm pull-up on RESET to VDD is recommended and a 10 nF cap to VSS prevents false resets in noisy automotive environments.
The 144-LQFP exposed thermal pad (EPAD, pin 144) must be soldered to a contiguous ground copper pour of at least 1 square inch to keep junction temperature below 125C under 80 MHz operation. Without the EPAD connection, theta_JA exceeds 50 C/W and the device may derate under sustained 100% CPU load. Recommended: 4-layer PCB with solid ground planes top and bottom.
Route analog pins (AN0-AN7, VRH, VRL, VDDA, VSSA) on a different layer than digital I/O and keep traces short. Place the 10 nF AVREF bypass cap adjacent to VRH/VRL. The BDM/debug port must be reachable for firmware updates - include a 6-pin 2x3 header footprint even if unused in production to allow field debugging via P&E Multilink or USBDM tools.
Do not leave MODC floating - tie to VDD for normal single-chip mode or to VSS for special modes (otherwise undefined boot behaviour). Always programme the CONFIG register to set clock source (PLL or oscillator) before issuing any application code; an unconfigured device boots from internal 1 MHz IRC and CAN bit timing will be wrong. For CAN bit timing, ensure tq segment lengths meet the S12X clock calculator defaults for 500 kbps and 1 Mbps operation.
Informasi Konformitas
RoHS and REACH compliance per NXP product family data. AEC-Q100 qualified for automotive Grade 0 (-40C to +125C). Halogen-free status not explicitly confirmed in the verified sources and marked as [DATA_NEEDED]; NXP S12XD family is generally halogen-free per NXP policy.