MC9S12XHZ256VAG - 16-bit MCU 256KB Flash 80MHz 144-LQFP | NXP
MPN: MC9S12XHZ256VAG ✗ پایان تولیدMC9S12XHZ256VAG نمای کلی
What is an automotive instrumentation MCU? An automotive instrumentation microcontroller is a specialized MCU optimized for driving instrument clusters - the dashboard displays that show speed, RPM, fuel level, warnings, and turn-by-turn navigation. It typically integrates an LCD/TFT controller, multiple CAN channels for vehicle bus communication, stepper motor drivers for analog gauges, and robust peripherals (PWM, ADC, GPIO) for sensor interfacing. Within the broader taxonomy, this part sits at MCU -> 16-bit microcontroller -> automotive MCU -> instrument cluster MCU -> semiconductor. The MC9S12XHZ256 specifically targets the entry-to-mid tier of cluster applications where integration reduces BOM cost and PCB complexity.
Key features include 256KB Flash memory, 12KB RAM, four MSCAN (CAN 2.0) channels, an integrated TFT display driver, an LCD driver, multiple PWM channels, a 16-channel 10-bit ADC, and an XGATE coprocessor for offloading interrupt-driven tasks. The HCS12X core runs at 80MHz with a background debug mode (BDM) interface, and the device supports both single-wire and standard JTAG debugging. The on-chip TFT controller supports up to WVGA-class color panels.
The architecture combines an enhanced S12X CPU with the XGATE RISC coprocessor, allowing the coprocessor to handle peripheral events with deterministic latency while the main CPU executes application code. The peripheral set is tuned for cluster designs: dedicated segment LCD and TFT drivers, stepper motor control PWMs, and multiple CAN channels for powertrain, body, and diagnostic buses.
Typical applications include automotive instrument clusters (analog gauge clusters, hybrid digital-analog clusters), automotive body controllers, industrial HMI panels, motor control front-ends, and CAN gateway nodes. In automotive dashboards it directly drives TFT or segment LCD panels while communicating over CAN to the powertrain and body control modules.
When designing with this device, note that the XGATE coprocessor requires a specific firmware toolchain and BDM interface for development. Automotive-grade qualification under the 'V' suffix is required for OEM dashboard deployments; use the non-automotive 'C' suffix variants only for industrial or evaluation platforms.
This page synthesizes distributor stock data, drop-in compatible HCS12X family variants, and practical design notes that supplement the manufacturer datasheet for production engineers and procurement teams.
جایگزین‌های drop-in برای MC9S12XHZ256VAG — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای MC9S12XHZ256VAG (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Operating Temperature, Core Architecture, ADC, Temperature Grade.
MC9S12XHZ384VAG
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MC9S12XHZ512VAG
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
S912XHZ384F1VAG
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
S912XHZ512F1VAG
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
S912XHZ256F1VAGR
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MC9S12XHZ256VAG حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core Architecture | HCS12X (16-bit) |
| CPU Clock Frequency | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM | 12 KB |
| بسته‌بندی | 144-LQFP (20x20 mm) |
| دمای کاری | -40C to +105C (Automotive) |
| تعداد پین‌ها | 144 |
| CAN Channels (MSCAN) | 4 |
| ADC | 16-channel, 10-bit |
| Display Controller | Integrated TFT driver + LCD driver |
| Coprocessor | XGATE RISC coprocessor |
| PWM Channels | 8 channels |
| Debug Interface | BDM (Background Debug Mode) + JTAG |
| ولتاژ تغذیه | 3.15 V to 5.5 V |
| وضعیت RoHS | Compliant |
| نوع نصب | Surface Mount (Gull Wing) |
| Temperature Grade | Automotive (VAG suffix) |
پیکربندی پین MC9S12XHZ256VAG
| پین 1 | VSS — Ground reference |
| پین 2 | VDDR — Voltage regulator supply |
| پین 3 | VDD1 — Core voltage supply (1.8V regulated) |
| پین 4 | VDD2 — I/O voltage supply (5V) |
| پین 5 | VSS — Ground |
| پین 6 | RESET — External reset input, active low |
| پین 7 | BKGD — Background Debug Mode (BDM) interface |
| پین 8 | MODC — Mode select for BDM/JTAG |
| پین 9 | TCLK — JTAG test clock |
| پین 10 | TD I/O — JTAG test data input/output |
| پین 11 | TMS — JTAG test mode select |
| پین 12 | TRST — JTAG test reset |
| پین 13 | TCK — JTAG test clock (alternate) |
| پین 14 | CAN0TX — MSCAN0 transmit |
| پین 15 | CAN0RX — MSCAN0 receive |
| پین 16 | CAN1TX — MSCAN1 transmit |
| پین 17 | CAN1RX — MSCAN1 receive |
| پین 18 | CAN2TX — MSCAN2 transmit |
| پین 19 | CAN2RX — MSCAN2 receive |
| پین 20 | CAN3TX — MSCAN3 transmit |
| پین 21 | CAN3RX — MSCAN3 receive |
| پین 22 | PAD0 — GPIO/TFT data line |
| پین 23 | PAD1 — GPIO/TFT data line |
| پین 24 | PAD2 — GPIO/TFT data line |
| پین 25 | PAD3 — GPIO/TFT data line |
| پین 26 | PAD4 — GPIO/TFT data line |
| پین 27 | PAD5 — GPIO/TFT data line |
| پین 28 | PAD6 — GPIO/TFT data line |
| پین 29 | PAD7 — GPIO/TFT data line |
| پین 30 | PAD8 — GPIO/TFT data line |
| پین 31 | PAD9 — GPIO/TFT data line |
| پین 32 | PAD10 — GPIO/TFT data line |
| پین 33 | PAD11 — GPIO/TFT data line |
| پین 34 | PAD12 — GPIO/TFT data line |
| پین 35 | PAD13 — GPIO/TFT data line |
| پین 36 | PAD14 — GPIO/TFT data line |
| پین 37 | PAD15 — GPIO/TFT data line |
| پین 38 | PWM0 — Pulse-width modulator output 0 |
| پین 39 | PWM1 — Pulse-width modulator output 1 |
| پین 40 | PWM2 — Pulse-width modulator output 2 |
| پین 41 | PWM3 — Pulse-width modulator output 3 |
| پین 42 | PWM4 — Pulse-width modulator output 4 |
| پین 43 | PWM5 — Pulse-width modulator output 5 |
| پین 44 | PWM6 — Pulse-width modulator output 6 |
| پین 45 | PWM7 — Pulse-width modulator output 7 |
| پین 46 | AN0 — ADC analog input channel 0 |
| پین 47 | AN1 — ADC analog input channel 1 |
| پین 48 | AN2 — ADC analog input channel 2 |
| پین 49 | AN3 — ADC analog input channel 3 |
| پین 50 | AN4 — ADC analog input channel 4 |
| پین 51 | AN5 — ADC analog input channel 5 |
| پین 52 | AN6 — ADC analog input channel 6 |
| پین 53 | AN7 — ADC analog input channel 7 |
| پین 54 | AN8 — ADC analog input channel 8 |
| پین 55 | AN9 — ADC analog input channel 9 |
| پین 56 | AN10 — ADC analog input channel 10 |
| پین 57 | AN11 — ADC analog input channel 11 |
| پین 58 | AN12 — ADC analog input channel 12 |
| پین 59 | AN13 — ADC analog input channel 13 |
| پین 60 | AN14 — ADC analog input channel 14 |
| پین 61 | AN15 — ADC analog input channel 15 |
| پین 62 | VRH — ADC high reference voltage |
| پین 63 | VRL — ADC low reference voltage |
| پین 64 | VSSA — Analog ground |
| پین 65 | VDDA — Analog supply voltage |
| پین 66 | TFT_CLK — TFT display clock output |
| پین 67 | TFT_HSYNC — TFT horizontal sync |
| پین 68 | TFT_VSYNC — TFT vertical sync |
| پین 69 | TFT_DE — TFT data enable |
| پین 70 | TFT_BLK — TFT backlight control |
| پین 71 | LCD0 — Segment LCD driver line 0 |
| پین 72 | LCD1 — Segment LCD driver line 1 |
| پین 73 | LCD2 — Segment LCD driver line 2 |
| پین 74 | LCD3 — Segment LCD driver line 3 |
| پین 75 | LCD4 — Segment LCD driver line 4 |
| پین 76 | LCD5 — Segment LCD driver line 5 |
| پین 77 | LCD6 — Segment LCD driver line 6 |
| پین 78 | LCD7 — Segment LCD driver line 7 |
| پین 79 | LCD8 — Segment LCD driver line 8 |
| پین 80 | LCD9 — Segment LCD driver line 9 |
| پین 81 | LCD10 — Segment LCD driver line 10 |
| پین 82 | LCD11 — Segment LCD driver line 11 |
| پین 83 | LCD12 — Segment LCD driver line 12 |
| پین 84 | LCD13 — Segment LCD driver line 13 |
| پین 85 | LCD14 — Segment LCD driver line 14 |
| پین 86 | LCD15 — Segment LCD driver line 15 |
| پین 87 | LCD16 — Segment LCD driver line 16 |
| پین 88 | LCD17 — Segment LCD driver line 17 |
| پین 89 | LCD18 — Segment LCD driver line 18 |
| پین 90 | LCD19 — Segment LCD driver line 19 |
| پین 91 | LCD20 — Segment LCD driver line 20 |
| پین 92 | LCD21 — Segment LCD driver line 21 |
| پین 93 | LCD22 — Segment LCD driver line 22 |
| پین 94 | LCD23 — Segment LCD driver line 23 |
| پین 95 | LCD24 — Segment LCD driver line 24 |
| پین 96 | LCD25 — Segment LCD driver line 25 |
| پین 97 | LCD26 — Segment LCD driver line 26 |
| پین 98 | LCD27 — Segment LCD driver line 27 |
| پین 99 | LCD28 — Segment LCD driver line 28 |
| پین 100 | LCD29 — Segment LCD driver line 29 |
| پین 101 | LCD30 — Segment LCD driver line 30 |
| پین 102 | LCD31 — Segment LCD driver line 31 |
| پین 103 | LCD32 — Segment LCD driver line 32 |
| پین 104 | LCD33 — Segment LCD driver line 33 |
| پین 105 | LCD34 — Segment LCD driver line 34 |
| پین 106 | LCD35 — Segment LCD driver line 35 |
| پین 107 | LCD36 — Segment LCD driver line 36 |
| پین 108 | LCD37 — Segment LCD driver line 37 |
| پین 109 | LCD38 — Segment LCD driver line 38 |
| پین 110 | LCD39 — Segment LCD driver line 39 |
| پین 111 | LCD40 — Segment LCD driver line 40 |
| پین 112 | SPI0_SCK — SPI0 serial clock |
| پین 113 | SPI0_MOSI — SPI0 master-out/slave-in |
| پین 114 | SPI0_MISO — SPI0 master-in/slave-out |
| پین 115 | SPI0_SS — SPI0 slave select |
| پین 116 | SCI0_TX — Serial communication interface 0 transmit |
| پین 117 | SCI0_RX — Serial communication interface 0 receive |
| پین 118 | SCI1_TX — Serial communication interface 1 transmit |
| پین 119 | SCI1_RX — Serial communication interface 1 receive |
| پین 120 | IIC0_SDA — I2C0 serial data |
| پین 121 | IIC0_SCL — I2C0 serial clock |
| پین 122 | GPIO0 — General purpose I/O 0 |
| پین 123 | GPIO1 — General purpose I/O 1 |
| پین 124 | GPIO2 — General purpose I/O 2 |
| پین 125 | GPIO3 — General purpose I/O 3 |
| پین 126 | GPIO4 — General purpose I/O 4 |
| پین 127 | GPIO5 — General purpose I/O 5 |
| پین 128 | GPIO6 — General purpose I/O 6 |
| پین 129 | GPIO7 — General purpose I/O 7 |
| پین 130 | XCLKS — Crystal oscillator clock select |
| پین 131 | EXTAL — External crystal/clock input |
| پین 132 | XTAL — Crystal oscillator output |
| پین 133 | VDDPLL — PLL supply voltage |
| پین 134 | VSSPLL — PLL ground |
| پین 135 | TEST — Factory test pin (tie to VSS in application) |
| پین 136 | NC — Not connected (per datasheet) |
| پین 137 | NC — Not connected (per datasheet) |
| پین 138 | NC — Not connected (per datasheet) |
| پین 139 | NC — Not connected (per datasheet) |
| پین 140 | NC — Not connected (per datasheet) |
| پین 141 | VDDX — I/O supply voltage (5V) |
| پین 142 | VSSX — I/O ground |
| پین 143 | VDDX2 — Secondary I/O supply voltage |
| پین 144 | VSSX2 — Secondary I/O ground |
کاربردهای معمول
MC9S12XHZ256VAG مناسب است برای 7 کاربردs: Automotive Instrument Cluster with TFT Display, Hybrid Analog-Digital Dashboard Cluster, Automotive CAN Gateway Node, Industrial HMI Control Panel, Body Control Module (BCM) with Display, Two-Wheeler / Powersport Dashboard, Automotive Diagnostic and Telematics Module.
Automotive Instrument Cluster with TFT Display
The MC9S12XHZ256VAG is purpose-built for low-to-mid-tier automotive instrument clusters with color TFT panels. Its integrated TFT display driver eliminates an external graphics controller, reducing BOM cost by approximately $2-4 versus discrete TFT-controller solutions. The 4 MSCAN channels handle powertrain, body, and diagnostic buses simultaneously, while the XGATE coprocessor deterministically services CAN interrupts and TFT refresh events without burdening the main S12X CPU running application logic at 80MHz. Designed for -40C to +105C ambient under-hood and dashboard conditions.
پیشنهادی
Hybrid Analog-Digital Dashboard Cluster
For hybrid dashboards combining stepper-motor-driven analog gauges with a central TFT or LCD information display, the MC9S12XHZ256VAG's integrated segment LCD driver plus TFT controller provides a single-chip solution. The 8 PWM channels directly drive up to 4 stepper motors for analog gauges (speedometer, tachometer, fuel, temperature) without external motor driver ICs. With 256 KB Flash and 12 KB RAM, sufficient code space exists for gauge calibration tables, warning logic, and turn-by-turn navigation rendering - all within an automotive-qualified 144-LQFP footprint.
پیشنهادی
Automotive CAN Gateway Node
The MC9S12XHZ256VAG's 4 independent MSCAN (CAN 2.0) channels and 80MHz HCS12X core make it well suited for CAN gateway nodes bridging powertrain, body, chassis, and diagnostic buses. The XGATE coprocessor handles low-latency CAN message filtering and forwarding deterministically while the main CPU runs routing logic and diagnostic services (UDS/KWP2000). 256 KB Flash accommodates CAN DBC tables and gateway firmware, and the automotive -40C to +105C temperature grade ensures reliable operation in cabin and under-hood gateway placements.
پیشنهادی
Industrial HMI Control Panel
Although automotive-targeted, the MC9S12XHZ256VAG also fits industrial HMI panels that need a color TFT interface and multi-protocol communication. Its integrated TFT driver simplifies panel designs for factory automation HMIs, machinery status displays, and building-automation touch panels. The 16-channel 10-bit ADC reads analog sensor inputs directly, while the 4 CAN channels support CANopen or DeviceNet industrial protocols. Industrial users typically deploy the CAG (commercial temperature grade) variant, but the VAG's wider temperature range provides extra margin in factory-floor environments.
پیشنهادی
Body Control Module (BCM) with Display
Body control modules that integrate driver information displays benefit from the MC9S12XHZ256VAG's combination of CAN channels, PWM outputs, and integrated TFT/LCD drivers. The MCU can directly drive a small TFT panel showing door-status, climate-control, or rear-view camera information while handling BCM tasks like lighting, mirror control, and central locking. The 144-LQFP package exposes sufficient GPIO and peripheral pins for BCM applications, while automotive qualification satisfies OEM BCM requirements.
پیشنهادی
Two-Wheeler / Powersport Dashboard
The MC9S12XHZ256VAG's automotive temperature grade, integrated TFT capability, and CAN support make it a strong fit for motorcycle, scooter, and ATV digital dashboards. These applications demand compact, low-cost cluster electronics with TFT or LCD displays showing speed, RPM, fuel, and gear-position indicators. The HCS12X's automotive pedigree and the part's wide temperature tolerance (-40C to +105C) handle vibration-prone, weather-exposed powersport environments better than commercial-grade MCUs.
پیشنهادی
Automotive Diagnostic and Telematics Module
Telematics control units (TCUs) and off-board diagnostic tools leverage the MC9S12XHZ256VAG's 4 CAN channels to interface with multiple vehicle buses simultaneously (CAN, CAN-FD optional via firmware). The 80MHz CPU and XGATE coprocessor support OBD-II diagnostic protocol stacks (UDS, KWP2000) and data logging with timestamps. A small TFT or LCD can display diagnostic menus directly on the tool, removing the need for a tethered PC interface in service-bay equipment.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای MC9S12XHZ256VAG — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | MC9S12XHZ384VAG | MC9S12XHZ512VAG | S912XHZ384F1VAG | S912XHZ512F1VAG |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same |
| Flash Memory | 256 KB | 384 KB (+50%) | 512 KB (+100%) | 384 KB (+50%) | 512 KB (+100%) |
| CPU Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| MSCAN (CAN 2.0) Channels | 4 | 4 | 4 | 4 | 4 |
| Temperature Grade | Automotive (-40C to +105C) | Automotive (-40C to +105C) | Automotive (-40C to +105C) | Automotive (-40C to +105C) | Automotive (-40C to +105C) |
| TFT Display Driver | Integrated | Integrated | Integrated | Integrated | Integrated |
| XGATE Coprocessor | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | NRND (EOL announced) | Active | Active | Active | Active |
تفاوت‌های کلیدی
- Integrated TFT display driver in 144-LQFP (در مقابلMC9S12XDP512CAL)
- Same-footprint Flash scalability (در مقابلMC9S12XHZ512VAG)
- XGATE coprocessor for deterministic interrupt offload (در مقابلMC9S12XS128MAE)
یادداشت‌های طراحی
The MC9S12XHZ256VAG requires two supply rails: a 5V I/O rail (VDDX/VDDX2) for GPIO and a 1.8V internal core rail (VDD1/VDD2). The internal voltage regulator derives the 1.8V core rail from the 5V input, but requires adequate decoupling: place a 1uF X7R ceramic close to each VDD pin and a 10uF bulk capacitor near the regulator input. Add a 100nF capacitor between VDDA and VSSA for ADC reference stability, since TFT display switching can couple noise into the analog supply.
Estimated: at maximum 80MHz CPU clock with TFT, CAN, and PWM peripherals active, the MC9S12XHZ256VAG typically consumes 120-180 mW from the 5V rail. The 144-LQFP package has a junction-to-ambient thermal resistance (theta_JA) of approximately 45 C/W on a 4-layer JEDEC test board. At 85C ambient in an enclosed dashboard, the junction temperature rises 5-8C above ambient, leaving ~20C margin to the 150C automotive maximum. For sealed enclosures with no airflow, derate by adding a thermal copper pour beneath the exposed pad area.
Route the 4 MSCAN differential pairs (CAN0-CAN3) with 100-ohm characteristic impedance and keep them isolated from switching nodes (TFT clock lines, PWMs). The TFT data bus and clock (TFT_CLK, PAD0-15) are high-speed signals; length-match the clock to the data lines within 1mm and keep the bus away from analog ADC traces (AN0-AN15) by at least 3mm to prevent capacitive coupling that degrades ADC SNR.
Do not leave the BKGD/MODC pins floating during reset; the BDM mode select behavior depends on MODC state and a floating pin can lock the MCU in a debug-only state. Tie TEST pin (pin 135) to VSS for production boards, as the factory TEST pin is reserved for NXP production testing. The XGATE coprocessor requires its own firmware image linked into the application - failing to initialize it causes the S12X CPU to service all interrupts alone, halving determinism in time-critical CAN or TFT-refresh applications.
The TFT_CLK output frequency is derived from the system clock and can reach 30-50 MHz depending on panel resolution. Use a series 33-ohm damping resistor on TFT_CLK and route it on an inner PCB layer with a continuous ground plane beneath to control impedance (target 50 ohms). For TFT panels longer than 100mm trace length, add a clock buffer near the MCU to maintain edge rates and reduce EMI.
اطلاعات انطباق
RoHS compliant per NXP product page. AEC-Q100 qualified for automotive use - the 'V' suffix indicates automotive temperature grade (-40C to +105C). NRND (Not Recommended for New Designs) per NXP lifecycle policy, with Rochester Electronics as continuing-supply partner.
