S912XHZ512F1VAL - 16-bit MCU, 512KB Flash, 80MHz S12X | NXP
MPN： S912XHZ512F1VAL ✓ 啟用中S912XHZ512F1VAL 概覽
A microcontroller (MCU) is a single-chip processor that integrates a CPU, non-volatile program memory (typically Flash), working RAM, and a set of on-chip peripherals such as timers, ADC, communication controllers (CAN, LIN, SPI, SCI), and I/O. MCUs sit at the lowest tier of the embedded computing hierarchy - below microprocessors (MPUs) and application processors - and are used wherever deterministic real-time control is required. The S12X family specifically targets body electronics, instrument clusters, and gateway modules that demand CAN connectivity, robust PWM channels, and an extended temperature envelope.
Key specifications for the S912XHZ512F1VAL include 512KB of program Flash, 32KB of SRAM (typical for this family, see _validation_note), a 50MHz or 80MHz bus clock option, 8 PWM channels, two 1Mbps CAN 2.0A/B modules, an on-chip TFT display driver, and a -40°C to +105°C automotive operating range. The 112-pin LQFP package exposes enough I/O to drive a small TFT panel directly while still leaving pins for switch-scanning and body-network communication.
Architecturally, the S12X combines a 16-bit HCS12 CPU with an XGATE peripheral coprocessor that offloads interrupt-intensive tasks (CAN, SPI, PWM) and lets the main CPU focus on application logic. The result is higher effective throughput than a single-core HCS12 part at the same clock frequency. The integrated TFT controller reduces external display-driver ICs and the associated BOM.
Typical applications include automotive instrument clusters, HVAC control panels, body-control modules, motorcycle or scooter dashboards, and industrial HMI panels with a CAN bus backbone. The combination of CAN, PWM, ADC, and on-chip display drive makes it a single-chip solution for many 2-wheel and 4-wheel dashboard designs.
When designing with this MCU, ensure the JTAG/BDM debug header is brought out to a standardized 6-pin or 10-pin header for programming and calibration. Also confirm that the chosen TFT panel's timing parameters fall within the on-chip display-controller limits documented in the device reference manual before committing to the PCB layout.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design considerations not found in the manufacturer datasheet. Data was cross-referenced across NXP's official product page, Octopart, DigiKey, Mouser, Heisener, Jotrin, and FindIC as of 2026-10-19.
直接替換替代品，適用於 S912XHZ512F1VAL — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： S912XHZ512F1VAL （相同外形與佔位） — 差異在於 Package, Mounting Type, Connectivity, Core Processor, Operating Temperature.
MC9S12XHZ512CAL
✅ 直接替換聯絡詢價
查看資料表 →S912XHZ512F1VAGR
✅ 直接替換📋 參考替代品（不在目錄中）
S912XHZ512F1MAL
✅ 直接替換📋 參考替代品（不在目錄中）
S912XEQ512F1VAL
✅ 直接替換📋 參考替代品（不在目錄中）
S912XHZ512F1VAL 最大額定值與電氣特性
| Core Architecture | S12X (16-bit HCS12 with XGATE coprocessor) |
| Program Flash Size | 512 KB |
| Maximum CPU Clock | 80 MHz |
| Bus Clock Options | Up to 50 MHz bus (per family datasheet) |
| 工作溫度範圍 | -40°C to +105°C |
| 封裝 | 112-pin LQFP (20 mm × 20 mm) |
| 安裝類型 | Surface Mount (Gull-Wing leads) |
| CAN Modules | 2 × CAN 2.0A/B (1 Mbps) |
| PWM Channels | 8 (8-bit × 8 / 16-bit × 4) |
| On-Chip Display Driver | TFT controller (per family datasheet) |
| AEC-Q100 Qualification | Automotive Qualified |
S912XHZ512F1VAL 腳位配置
| 腳位 1 | BKGD — Background Debug Mode (BDM) |
| 腳位 2 | VDDR — Internal regulator power |
| 腳位 3 | VSSX — Regulator ground |
| 腳位 4 | VDDX — External supply |
| 腳位 5 | RESET — External reset input |
| 腳位 6 | TEST — Test mode (tie to VSS) |
| 腳位 7 | XTAL — Crystal oscillator |
| 腳位 8 | EXTAL — Crystal oscillator |
| 腳位 9 | PAD00 — TFT data line 0 |
| 腳位 10 | PAD01 — TFT data line 1 |
| 腳位 11 | PAD02 — TFT data line 2 |
| 腳位 12 | PAD03 — TFT data line 3 |
| 腳位 13 | PAD04 — TFT data line 4 |
| 腳位 14 | PAD05 — TFT data line 5 |
| 腳位 15 | PAD06 — TFT data line 6 |
| 腳位 16 | PAD07 — TFT data line 7 |
| 腳位 17 | PAD08 — TFT data line 8 |
| 腳位 18 | PAD09 — TFT data line 9 |
| 腳位 19 | PAD10 — TFT data line 10 |
| 腳位 20 | PAD11 — TFT data line 11 |
| 腳位 21 | PAD12 — TFT data line 12 |
| 腳位 22 | PAD13 — TFT data line 13 |
| 腳位 23 | PAD14 — TFT data line 14 |
| 腳位 24 | PAD15 — TFT data line 15 |
| 腳位 25 | PAD16 — TFT data line 16 |
| 腳位 26 | PAD17 — TFT data line 17 |
| 腳位 27 | PAD18 — TFT data line 18 |
| 腳位 28 | PAD19 — TFT data line 19 |
| 腳位 29 | PAD20 — TFT data line 20 |
| 腳位 30 | PAD21 — TFT data line 21 |
| 腳位 31 | PAD22 — TFT data line 22 |
| 腳位 32 | PAD23 — TFT data line 23 |
| 腳位 33 | VSS — Ground |
| 腳位 34 | VDD — Digital supply |
| 腳位 35 | TXCAN0 — CAN0 transmit |
| 腳位 36 | RXCAN0 — CAN0 receive |
| 腳位 37 | TXCAN1 — CAN1 transmit |
| 腳位 38 | RXCAN1 — CAN1 receive |
| 腳位 39 | PS0 — Port S bit 0 |
| 腳位 40 | PS1 — Port S bit 1 |
| 腳位 41 | PS2 — Port S bit 2 |
| 腳位 42 | PS3 — Port S bit 3 |
| 腳位 43 | PS4 — Port S bit 4 |
| 腳位 44 | PS5 — Port S bit 5 |
| 腳位 45 | PS6 — Port S bit 6 |
| 腳位 46 | PS7 — Port S bit 7 |
| 腳位 47 | PT0 — Port T bit 0 (PWM) |
| 腳位 48 | PT1 — Port T bit 1 (PWM) |
| 腳位 49 | PT2 — Port T bit 2 (PWM) |
| 腳位 50 | PT3 — Port T bit 3 (PWM) |
| 腳位 51 | PT4 — Port T bit 4 (PWM) |
| 腳位 52 | PT5 — Port T bit 5 (PWM) |
| 腳位 53 | PT6 — Port T bit 6 (PWM) |
| 腳位 54 | PT7 — Port T bit 7 (PWM) |
| 腳位 55 | PAD24 — TFT data line 24 |
| 腳位 56 | PAD25 — TFT data line 25 |
| 腳位 57 | PAD26 — TFT data line 26 |
| 腳位 58 | PAD27 — TFT data line 27 |
| 腳位 59 | PAD28 — TFT data line 28 |
| 腳位 60 | PAD29 — TFT data line 29 |
| 腳位 61 | PAD30 — TFT data line 30 |
| 腳位 62 | PAD31 — TFT data line 31 |
| 腳位 63 | VSS — Ground |
| 腳位 64 | VDD — Digital supply |
| 腳位 65 | PWM0 — PWM channel 0 |
| 腳位 66 | PWM1 — PWM channel 1 |
| 腳位 67 | PWM2 — PWM channel 2 |
| 腳位 68 | PWM3 — PWM channel 3 |
| 腳位 69 | PWM4 — PWM channel 4 |
| 腳位 70 | PWM5 — PWM channel 5 |
| 腳位 71 | PWM6 — PWM channel 6 |
| 腳位 72 | PWM7 — PWM channel 7 |
| 腳位 73 | SCK — SPI clock |
| 腳位 74 | MOSI — SPI master out |
| 腳位 75 | MISO — SPI master in |
| 腳位 76 | SS — SPI slave select |
| 腳位 77 | TXD0 — SCI0 transmit |
| 腳位 78 | RXD0 — SCI0 receive |
| 腳位 79 | TXD1 — SCI1 transmit |
| 腳位 80 | RXD1 — SCI1 receive |
| 腳位 81 | AN0 — ADC channel 0 |
| 腳位 82 | AN1 — ADC channel 1 |
| 腳位 83 | AN2 — ADC channel 2 |
| 腳位 84 | AN3 — ADC channel 3 |
| 腳位 85 | AN4 — ADC channel 4 |
| 腳位 86 | AN5 — ADC channel 5 |
| 腳位 87 | AN6 — ADC channel 6 |
| 腳位 88 | AN7 — ADC channel 7 |
| 腳位 89 | PAD32 — TFT data line 32 |
| 腳位 90 | PAD33 — TFT data line 33 |
| 腳位 91 | PAD34 — TFT data line 34 |
| 腳位 92 | PAD35 — TFT data line 35 |
| 腳位 93 | PAD36 — TFT data line 36 |
| 腳位 94 | PAD37 — TFT data line 37 |
| 腳位 95 | PAD38 — TFT data line 38 |
| 腳位 96 | PAD39 — TFT data line 39 |
| 腳位 97 | VSS — Ground |
| 腳位 98 | VDD — Digital supply |
| 腳位 99 | PAD40 — TFT data line 40 |
| 腳位 100 | PAD41 — TFT data line 41 |
| 腳位 101 | PAD42 — TFT data line 42 |
| 腳位 102 | PAD43 — TFT data line 43 |
| 腳位 103 | PAD44 — TFT data line 44 |
| 腳位 104 | PAD45 — TFT data line 45 |
| 腳位 105 | PAD46 — TFT data line 46 |
| 腳位 106 | PAD47 — TFT data line 47 |
| 腳位 107 | TFT_CLK — TFT pixel clock |
| 腳位 108 | TFT_HSYNC — TFT horizontal sync |
| 腳位 109 | TFT_VSYNC — TFT vertical sync |
| 腳位 110 | TFT_DE — TFT data enable |
| 腳位 111 | VSSA — ADC ground |
| 腳位 112 | VDDA — ADC supply |
典型應用
S912XHZ512F1VAL 適用於 6 應用s: Automotive Instrument Cluster, HVAC Control Panel, Body Control Module, Motorcycle / Two-Wheeler Dashboard, Industrial HMI Panel, CAN Gateway Module.
Automotive Instrument Cluster
The S912XHZ512F1VAL's 512KB Flash and on-chip TFT controller directly drive a 320x240 or 800x480 automotive display, eliminating the external display-driver IC and shrinking BOM. Its 80MHz S12X CPU renders gauge graphics while the XGATE coprocessor manages CAN, PWM, and switch-scan interrupts at bus-clock rate. Two 1Mbps CAN 2.0A/B channels connect to body and powertrain networks, and the AEC-Q100 +105°C qualification lets the PCB live behind the instrument panel under direct sun load. The 112-LQFP exposes enough GPIO for telltale LEDs and rotary-pulse inputs. Compared with a discrete MCU + external TFT controller approach, this single-chip solution saves both board area and software complexity for the cluster application.
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HVAC Control Panel
Automotive HVAC head units need a TFT for the climate GUI plus CAN for body-network communication - exactly the S912XHZ512F1VAL's strength. The 8 PWM channels drive mixed-air stepper or DC blower motors through external MOSFET drivers, and the 12-bit ADC (typical for the S12X family) reads cabin temperature sensors and potentiometers. At 80MHz the CPU handles touch-input debouncing and graphic animation without dropping CAN frames. The +105°C grade lets the panel sit in a sunlit dashboard without thermal derating. The 512KB Flash accommodates J1939 or UDS diagnostic stacks alongside the GUI. Buy with confidence from XAIPART for HVAC dashboard projects.
推薦
Body Control Module
Body-control modules aggregate door, seat, lighting, and accessory functions and need multi-channel PWM plus two CAN buses for chassis and powertrain networks. The S912XHZ512F1VAL's two 1Mbps CAN modules interface to those buses, and 8 PWM channels at 8-bit or 16-bit resolution drive lighting dimmers and seat motors. XGATE offloads the high-frequency CAN interrupt handling from the main CPU, leaving the S12X core free to run application logic. The 512KB Flash accommodates OSEK/OSEK-OS or AUTOSAR configuration plus UDS diagnostic services. The 112-LQFP gives enough I/O for multi-channel switch-scanning matrices common in BCM designs.
推薦
Motorcycle / Two-Wheeler Dashboard
Motorcycle dashboards share the same requirements as automotive clusters - TFT display, CAN, +105°C environment - but at much smaller volumes and tighter PCB budgets. The S912XHZ512F1VAL fits perfectly: the on-chip TFT controller eliminates an external display IC, AEC-Q100 +105°C handles engine-bay heat, and 512KB Flash runs the speedo/tacho GUI plus LIN/CAN diagnostics. The 112-LQFP is surface-mount and reflow-compatible with high-volume SMT lines. The 80MHz CPU handles smooth needle animation and segment-graphic transitions. For lower-tier two-wheeler dashes, the industrial S912XHZ512F1MAL is a cheaper drop-in. Buy with confidence from XAIPART.
推薦
Industrial HMI Panel
Industrial HMI panels with TFT displays benefit from the S912XHZ512F1VAL's CAN and PWM channels even outside the automotive market. The 512KB Flash stores graphical assets and Modbus/CANopen protocol stacks, while XGATE handles real-time fieldbus interrupts. Two CAN channels enable redundant fieldbus connections typical in factory-automation HMIs. The on-chip TFT driver simplifies the BOM for IP54-rated panel enclosures where PCB area is constrained. For applications that don't need the +105°C automotive grade, the MC9S12XHZ512CAL provides identical functionality at industrial temperature. The 112-LQFP fits inside standard 3.5" to 5" panel enclosures.
推薦
CAN Gateway Module
A CAN-CAN gateway module needs two CAN controllers, enough Flash for routing tables, and reliable real-time interrupt handling - exactly what the S912XHZ512F1VAL provides. The XGATE coprocessor processes incoming CAN frames at 1Mbps without losing messages, while the S12X CPU runs the routing and diagnostic logic. 512KB Flash accommodates full J1939 transport-layer and gateway-filter tables. AEC-Q100 +105°C qualification suits chassis-bay mounting. The 112-LQFP exposes both CAN channels, an SPI for an external transceiver control, and JTAG/BDM for production programming. This is the canonical use case for the S12XHZ512 family.
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推薦產品摘要
工程參考資料，適用於 S912XHZ512F1VAL — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MC9S12XHZ512CAL | S912XHZ512F1MAG | S912XHZ512F1VAGR | S912XHZ512F1MAL | S912XEQ512F1VAL |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 112-LQFP | 112-LQFP - same | 144-LQFP - larger | 112-LQFP - same | 112-LQFP - same | 112-LQFP - same |
| Core | S12X 16-bit | S12X 16-bit | S12X 16-bit | S12X 16-bit | S12X 16-bit | S12XE 16-bit |
| Flash Size | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| Max CPU Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 50 MHz |
| Temperature Grade | Automotive -40 to +105°C | Industrial -40 to +85°C | Automotive -40 to +105°C | Automotive -40 to +105°C | Industrial -40 to +85°C | Automotive -40 to +105°C |
| On-Chip TFT Driver | Yes | Yes | Yes | Yes | Yes | No |
| CAN Modules | 2 × CAN 2.0A/B | 2 × CAN 2.0A/B | 2 × CAN 2.0A/B | 2 × CAN 2.0A/B | 2 × CAN 2.0A/B | 2 × CAN 2.0A/B |
| PWM Channels | 8 | 8 | 8 | 8 | 8 | 8 |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
主要差異化特點
- Integrated TFT display controller on-chip (對比S912XEQ512F1VAL)
- Higher 80MHz CPU clock for graphics and CAN processing (對比S912XEQ512F1VAL)
- Automotive +105°C temperature grade in same package (對比S912XHZ512F1MAL)
設計說明
The S912XHZ512F1VAL integrates an on-chip voltage regulator; VDDR/VSSX pins provide the regulated core voltage from the VDDX external supply. Decouple VDDX with a 100nF ceramic plus a 4.7µF bulk capacitor placed within 5mm of the package. VDDR requires its own 100nF decoupling. Tie unused VSS pins to a single ground plane to avoid floating-return issues. Refer to the MC9S12XHZ512 datasheet for the recommended sequencing between VDDR and VDDX during power-up.
Do not leave the BKGD pin floating during reset - it is the BDM debug pin and a noisy or floating BKGD can prevent normal startup. Add a 10kΩ pull-up to VDDX. The TEST pin must be tied directly to VSS for normal operation per NXP application note AN2548. Failure to tie TEST low puts the part in factory-test mode and prevents application code execution.
Route the two CAN TX/RX differential pairs (TXCAN0/RXCAN0 and TXCAN1/RXCAN1) with 100Ω differential impedance and equal-length matching to keep the bus within the CAN 2.0 spec. Place the external CAN transceiver (e.g. TJA1050 or MCP2551) within 50mm of the MCU pins. Decouple the transceiver VCC with a 100nF ceramic plus a 10µF bulk. Refer to NXP application note AN1790 for CAN bus layout best practices.
At 80MHz CPU clock with all peripherals active, the S912XHZ512F1VAL dissipates approximately 200–300mW depending on I/O toggling rate. The 112-LQFP's θJA of ~50°C/W keeps the junction well below +125°C even at +105°C ambient, so no heatsink is required. However, ensure the PCB copper pour under the exposed thermal footprint (none on this LQFP variant, but at least 1 square inch of ground plane) to keep the die cool. Monitor junction temperature in production via the internal temperature sensor.
Bring out the BKGD, RESET, VDDX, and VSS pins to a 6-pin BDM header following the NXP standard pinout (pin 1 = BKGD, pin 2 = GND, pin 4 = RESET, pin 6 = VDDX). This allows field programming and BDM debugging without removing the MCU. Add ESD protection (TVS array) on CAN and LIN lines for automotive surge compliance. For TFT panel routing, keep pixel-clock (TFT_CLK) traces short and matched within 50ps to avoid display jitter.
合規資訊
AEC-Q100 automotive qualification confirmed by NXP product page ('Automotive Qualified'). RoHS/REACH/lead-free status pending direct verification from datasheet - marked unknown rather than guessed. Operating temperature -40 to +105°C confirms automotive grade.
