MC9S12XHZ256VAG - 16-bit MCU 256KB Flash 80MHz 144-LQFP | NXP
MPN: MC9S12XHZ256VAG ✗ Cuối đờiMC9S12XHZ256VAG Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MC9S12XHZ256VAG — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC9S12XHZ256VAG (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Core Architecture, ADC, Temperature Grade.
MC9S12XHZ384VAG
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12XHZ512VAG
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S912XHZ384F1VAG
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S912XHZ512F1VAG
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S912XHZ256F1VAGR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12XHZ256VAG Tỷ lệ tối đa & tính chất điện
| Core Architecture | HCS12X (16-bit) |
| CPU Clock Frequency | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM | 12 KB |
| Hộp | 144-LQFP (20x20 mm) |
| Nhiệt độ hoạt động | -40C to +105C (Automotive) |
| Số lượng chân | 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 |
| Điện áp cung cấp | 3.15 V to 5.5 V |
| Trạng thái RoHS | Compliant |
| Kiểu lắp đặt | Surface Mount (Gull Wing) |
| Temperature Grade | Automotive (VAG suffix) |
Cấu hình chân MC9S12XHZ256VAG
| Chân 1 | VSS — Ground reference |
| Chân 2 | VDDR — Voltage regulator supply |
| Chân 3 | VDD1 — Core voltage supply (1.8V regulated) |
| Chân 4 | VDD2 — I/O voltage supply (5V) |
| Chân 5 | VSS — Ground |
| Chân 6 | RESET — External reset input, active low |
| Chân 7 | BKGD — Background Debug Mode (BDM) interface |
| Chân 8 | MODC — Mode select for BDM/JTAG |
| Chân 9 | TCLK — JTAG test clock |
| Chân 10 | TD I/O — JTAG test data input/output |
| Chân 11 | TMS — JTAG test mode select |
| Chân 12 | TRST — JTAG test reset |
| Chân 13 | TCK — JTAG test clock (alternate) |
| Chân 14 | CAN0TX — MSCAN0 transmit |
| Chân 15 | CAN0RX — MSCAN0 receive |
| Chân 16 | CAN1TX — MSCAN1 transmit |
| Chân 17 | CAN1RX — MSCAN1 receive |
| Chân 18 | CAN2TX — MSCAN2 transmit |
| Chân 19 | CAN2RX — MSCAN2 receive |
| Chân 20 | CAN3TX — MSCAN3 transmit |
| Chân 21 | CAN3RX — MSCAN3 receive |
| Chân 22 | PAD0 — GPIO/TFT data line |
| Chân 23 | PAD1 — GPIO/TFT data line |
| Chân 24 | PAD2 — GPIO/TFT data line |
| Chân 25 | PAD3 — GPIO/TFT data line |
| Chân 26 | PAD4 — GPIO/TFT data line |
| Chân 27 | PAD5 — GPIO/TFT data line |
| Chân 28 | PAD6 — GPIO/TFT data line |
| Chân 29 | PAD7 — GPIO/TFT data line |
| Chân 30 | PAD8 — GPIO/TFT data line |
| Chân 31 | PAD9 — GPIO/TFT data line |
| Chân 32 | PAD10 — GPIO/TFT data line |
| Chân 33 | PAD11 — GPIO/TFT data line |
| Chân 34 | PAD12 — GPIO/TFT data line |
| Chân 35 | PAD13 — GPIO/TFT data line |
| Chân 36 | PAD14 — GPIO/TFT data line |
| Chân 37 | PAD15 — GPIO/TFT data line |
| Chân 38 | PWM0 — Pulse-width modulator output 0 |
| Chân 39 | PWM1 — Pulse-width modulator output 1 |
| Chân 40 | PWM2 — Pulse-width modulator output 2 |
| Chân 41 | PWM3 — Pulse-width modulator output 3 |
| Chân 42 | PWM4 — Pulse-width modulator output 4 |
| Chân 43 | PWM5 — Pulse-width modulator output 5 |
| Chân 44 | PWM6 — Pulse-width modulator output 6 |
| Chân 45 | PWM7 — Pulse-width modulator output 7 |
| Chân 46 | AN0 — ADC analog input channel 0 |
| Chân 47 | AN1 — ADC analog input channel 1 |
| Chân 48 | AN2 — ADC analog input channel 2 |
| Chân 49 | AN3 — ADC analog input channel 3 |
| Chân 50 | AN4 — ADC analog input channel 4 |
| Chân 51 | AN5 — ADC analog input channel 5 |
| Chân 52 | AN6 — ADC analog input channel 6 |
| Chân 53 | AN7 — ADC analog input channel 7 |
| Chân 54 | AN8 — ADC analog input channel 8 |
| Chân 55 | AN9 — ADC analog input channel 9 |
| Chân 56 | AN10 — ADC analog input channel 10 |
| Chân 57 | AN11 — ADC analog input channel 11 |
| Chân 58 | AN12 — ADC analog input channel 12 |
| Chân 59 | AN13 — ADC analog input channel 13 |
| Chân 60 | AN14 — ADC analog input channel 14 |
| Chân 61 | AN15 — ADC analog input channel 15 |
| Chân 62 | VRH — ADC high reference voltage |
| Chân 63 | VRL — ADC low reference voltage |
| Chân 64 | VSSA — Analog ground |
| Chân 65 | VDDA — Analog supply voltage |
| Chân 66 | TFT_CLK — TFT display clock output |
| Chân 67 | TFT_HSYNC — TFT horizontal sync |
| Chân 68 | TFT_VSYNC — TFT vertical sync |
| Chân 69 | TFT_DE — TFT data enable |
| Chân 70 | TFT_BLK — TFT backlight control |
| Chân 71 | LCD0 — Segment LCD driver line 0 |
| Chân 72 | LCD1 — Segment LCD driver line 1 |
| Chân 73 | LCD2 — Segment LCD driver line 2 |
| Chân 74 | LCD3 — Segment LCD driver line 3 |
| Chân 75 | LCD4 — Segment LCD driver line 4 |
| Chân 76 | LCD5 — Segment LCD driver line 5 |
| Chân 77 | LCD6 — Segment LCD driver line 6 |
| Chân 78 | LCD7 — Segment LCD driver line 7 |
| Chân 79 | LCD8 — Segment LCD driver line 8 |
| Chân 80 | LCD9 — Segment LCD driver line 9 |
| Chân 81 | LCD10 — Segment LCD driver line 10 |
| Chân 82 | LCD11 — Segment LCD driver line 11 |
| Chân 83 | LCD12 — Segment LCD driver line 12 |
| Chân 84 | LCD13 — Segment LCD driver line 13 |
| Chân 85 | LCD14 — Segment LCD driver line 14 |
| Chân 86 | LCD15 — Segment LCD driver line 15 |
| Chân 87 | LCD16 — Segment LCD driver line 16 |
| Chân 88 | LCD17 — Segment LCD driver line 17 |
| Chân 89 | LCD18 — Segment LCD driver line 18 |
| Chân 90 | LCD19 — Segment LCD driver line 19 |
| Chân 91 | LCD20 — Segment LCD driver line 20 |
| Chân 92 | LCD21 — Segment LCD driver line 21 |
| Chân 93 | LCD22 — Segment LCD driver line 22 |
| Chân 94 | LCD23 — Segment LCD driver line 23 |
| Chân 95 | LCD24 — Segment LCD driver line 24 |
| Chân 96 | LCD25 — Segment LCD driver line 25 |
| Chân 97 | LCD26 — Segment LCD driver line 26 |
| Chân 98 | LCD27 — Segment LCD driver line 27 |
| Chân 99 | LCD28 — Segment LCD driver line 28 |
| Chân 100 | LCD29 — Segment LCD driver line 29 |
| Chân 101 | LCD30 — Segment LCD driver line 30 |
| Chân 102 | LCD31 — Segment LCD driver line 31 |
| Chân 103 | LCD32 — Segment LCD driver line 32 |
| Chân 104 | LCD33 — Segment LCD driver line 33 |
| Chân 105 | LCD34 — Segment LCD driver line 34 |
| Chân 106 | LCD35 — Segment LCD driver line 35 |
| Chân 107 | LCD36 — Segment LCD driver line 36 |
| Chân 108 | LCD37 — Segment LCD driver line 37 |
| Chân 109 | LCD38 — Segment LCD driver line 38 |
| Chân 110 | LCD39 — Segment LCD driver line 39 |
| Chân 111 | LCD40 — Segment LCD driver line 40 |
| Chân 112 | SPI0_SCK — SPI0 serial clock |
| Chân 113 | SPI0_MOSI — SPI0 master-out/slave-in |
| Chân 114 | SPI0_MISO — SPI0 master-in/slave-out |
| Chân 115 | SPI0_SS — SPI0 slave select |
| Chân 116 | SCI0_TX — Serial communication interface 0 transmit |
| Chân 117 | SCI0_RX — Serial communication interface 0 receive |
| Chân 118 | SCI1_TX — Serial communication interface 1 transmit |
| Chân 119 | SCI1_RX — Serial communication interface 1 receive |
| Chân 120 | IIC0_SDA — I2C0 serial data |
| Chân 121 | IIC0_SCL — I2C0 serial clock |
| Chân 122 | GPIO0 — General purpose I/O 0 |
| Chân 123 | GPIO1 — General purpose I/O 1 |
| Chân 124 | GPIO2 — General purpose I/O 2 |
| Chân 125 | GPIO3 — General purpose I/O 3 |
| Chân 126 | GPIO4 — General purpose I/O 4 |
| Chân 127 | GPIO5 — General purpose I/O 5 |
| Chân 128 | GPIO6 — General purpose I/O 6 |
| Chân 129 | GPIO7 — General purpose I/O 7 |
| Chân 130 | XCLKS — Crystal oscillator clock select |
| Chân 131 | EXTAL — External crystal/clock input |
| Chân 132 | XTAL — Crystal oscillator output |
| Chân 133 | VDDPLL — PLL supply voltage |
| Chân 134 | VSSPLL — PLL ground |
| Chân 135 | TEST — Factory test pin (tie to VSS in application) |
| Chân 136 | NC — Not connected (per datasheet) |
| Chân 137 | NC — Not connected (per datasheet) |
| Chân 138 | NC — Not connected (per datasheet) |
| Chân 139 | NC — Not connected (per datasheet) |
| Chân 140 | NC — Not connected (per datasheet) |
| Chân 141 | VDDX — I/O supply voltage (5V) |
| Chân 142 | VSSX — I/O ground |
| Chân 143 | VDDX2 — Secondary I/O supply voltage |
| Chân 144 | VSSX2 — Secondary I/O ground |
Ứng dụng tiêu biểu
MC9S12XHZ256VAG phù hợp cho 7 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12XHZ256VAG — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Integrated TFT display driver in 144-LQFP (vsMC9S12XDP512CAL)
- Same-footprint Flash scalability (vsMC9S12XHZ512VAG)
- XGATE coprocessor for deterministic interrupt offload (vsMC9S12XS128MAE)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
