MC9S12XD256VPV - 16-Bit HCS12X MCU 256KB Flash LQFP-112 | NXP
MPN: MC9S12XD256VPV ✓ Hoạt độngMC9S12XD256VPV Tóm tắt
A microcontroller (MCU) is a single-chip computer integrating a CPU, memory (Flash/RAM/EEPROM), and a rich set of peripherals such as timers, ADC, PWM, CAN and SCI/UART/SPI/I2C. The HCS12X family extends the legacy 16-bit HCS12 with an XGATE co-processor and increased performance, sitting between classic 8-bit MCUs (e.g. HC08, S08) and higher-end 32-bit Power Architecture parts like the MPC56xx and Kinetis families in NXP's automotive hierarchy. The 'XD' derivative in particular doubles the XGATE channels to 80 and is widely adopted for body controllers, gateway nodes and industrial motion control.
Key features include 256 KB Flash with security, 16 KB RAM, 4 KB EEPROM, an XGATE co-processor delivering up to 80 MIPS of offloaded DSP-style I/O processing, dual CAN 2.0A/B controllers, an enhanced capture timer with 8 channels + 8 PWM, 16-channel 10-bit ADC, 8-channel 8-bit PWM and SCI/SPI/I2C interfaces. The part supports industrial-grade -40C to +85C operation and is well-suited to body electronics, instrument clusters, and LIN/CAN sub-nodes.
Typical applications include automotive body control modules, HVAC controllers, instrument cluster slaves, industrial CAN nodes, sensor interfaces and lighting/ECM controllers. Two independent CAN channels plus the XGATE co-processor make the XD256 particularly strong in gateway and network-bridging roles.
When designing with this MCU, ensure the BDM/debug pins are correctly pulled and that VDDR/VSS pair decoupling follows the datasheet reference layout. For low-EMI automotive layouts, place the 4 MHz crystal or resonator within 1 cm of the EXTAL/XTAL pins, and route the XCLKS/OCT route guarded by ground.
This page consolidates real-time distributor pricing, drop-in LQFP-112 alternatives, and engineering design notes not present in the manufacturer datasheet, providing an at-a-glance decision support layer for procurement and design engineers.
Bộ thay thế dễ dàng lắp đặt cho MC9S12XD256VPV — 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 MC9S12XD256VPV (cùng hình factor và footprint) — khác nhau ở ADC, Package, RAM, Core, Operating Temperature.
MC9S12XDP512VPV
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12XD128VPV
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DT256VPVE
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S12XHZ256VAG
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S12XEQ512CAG
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S12XD256VPV Tỷ lệ tối đa & tính chất điện
| Core | HCS12X (16-bit, XGATE co-processor) |
| Program Memory | 256 KB Flash |
| RAM | 128 KB |
| EEPROM | 4 KB |
| Maximum Bus Frequency | 80 MHz |
| Điện áp cung cấp | 2.35 V to 5.5 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | LQFP-112 (20x20 mm) |
| Kiểu lắp đặt | Surface Mount |
| CAN | 2 x CAN 2.0A/B |
| Timers | ECT (Enhanced Capture Timer, 8-ch) |
| PWM | 8-channel 8-bit PWM |
| ADC | 16-channel 10-bit ADC |
| Serial Interfaces | SCI, SPI, I2C |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 (168 hours) |
Cấu hình chân MC9S12XD256VPV
| Chân 1 | PE0/XADDR0 — Port E bit 0 / XADDR0 (external address) |
| Chân 2 | PE1/XADDR1 — Port E bit 1 / XADDR1 |
| Chân 3 | PE2/XADDR2 — Port E bit 2 / XADDR2 |
| Chân 4 | PE3/XADDR3 — Port E bit 3 / XADDR3 |
| Chân 5 | VDDR — Voltage regulator power supply |
| Chân 6 | VDD — Digital supply voltage |
| Chân 7 | VSS — Ground |
| Chân 8 | PE4/ECLKX — Port E bit 4 / ECLKX output |
| Chân 9 | PE5 — Port E bit 5 |
| Chân 10 | PE6 — Port E bit 6 |
| Chân 11 | PE7 — Port E bit 7 |
| Chân 12 | BKGD — Background Debug Mode pin |
| Chân 13 | MODC — Mode Select pin |
| Chân 14 | RESET — External reset input, active low |
| Chân 15 | TEST — Test mode pin (must be tied to VSS in normal operation) |
| Chân 16 | VDDX — I/O supply voltage (5V tolerant) |
| Chân 17 | VSSX — I/O ground |
| Chân 18 | EXTAL — External crystal/oscillator input |
| Chân 19 | XTAL — External crystal output |
| Chân 20 | VSSPLL — PLL ground |
| Chân 21 | VDDPLL — PLL supply |
| Chân 22 | PAD0/AN0 — Port AD bit 0 / ADC analog input 0 |
| Chân 23 | PAD1/AN1 — Port AD bit 1 / ADC analog input 1 |
| Chân 24 | PAD2/AN2 — Port AD bit 2 / ADC analog input 2 |
| Chân 25 | PAD3/AN3 — Port AD bit 3 / ADC analog input 3 |
| Chân 26 | PAD4/AN4 — Port AD bit 4 / ADC analog input 4 |
| Chân 27 | PAD5/AN5 — Port AD bit 5 / ADC analog input 5 |
| Chân 28 | PAD6/AN6 — Port AD bit 6 / ADC analog input 6 |
| Chân 29 | PAD7/AN7 — Port AD bit 7 / ADC analog input 7 |
| Chân 30 | PAD8/AN8 — Port AD bit 8 / ADC analog input 8 |
| Chân 31 | PAD9/AN9 — Port AD bit 9 / ADC analog input 9 |
| Chân 32 | PAD10/AN10 — Port AD bit 10 / ADC analog input 10 |
| Chân 33 | PAD11/AN11 — Port AD bit 11 / ADC analog input 11 |
| Chân 34 | PAD12/AN12 — Port AD bit 12 / ADC analog input 12 |
| Chân 35 | PAD13/AN13 — Port AD bit 13 / ADC analog input 13 |
| Chân 36 | PAD14/AN14 — Port AD bit 14 / ADC analog input 14 |
| Chân 37 | PAD15/AN15 — Port AD bit 15 / ADC analog input 15 |
| Chân 38 | VDDA — ADC analog supply |
| Chân 39 | VSSA — ADC analog ground |
| Chân 40 | VRH — ADC high reference voltage |
| Chân 41 | VRL — ADC low reference voltage |
| Chân 42 | PM0 — Port M bit 0 |
| Chân 43 | PM1 — Port M bit 1 |
| Chân 44 | PM2 — Port M bit 2 |
| Chân 45 | PM3 — Port M bit 3 |
| Chân 46 | PM4 — Port M bit 4 |
| Chân 47 | PM5 — Port M bit 5 |
| Chân 48 | PM6 — Port M bit 6 |
| Chân 49 | PM7 — Port M bit 7 |
| Chân 50 | PJ0/KWUJ0 — Port J bit 0 / Key wake-up J0 |
| Chân 51 | PJ1/KWUJ1 — Port J bit 1 / Key wake-up J1 |
| Chân 52 | PJ2/KWUJ2 — Port J bit 2 / Key wake-up J2 |
| Chân 53 | PJ3/KWUJ3 — Port J bit 3 / Key wake-up J3 |
| Chân 54 | PJ4/KWUJ4 — Port J bit 4 / Key wake-up J4 |
| Chân 55 | PJ5/KWUJ5 — Port J bit 5 / Key wake-up J5 |
| Chân 56 | PJ6/KWUJ6 — Port J bit 6 / Key wake-up J6 |
| Chân 57 | PJ7/KWUJ7 — Port J bit 7 / Key wake-up J7 |
| Chân 58 | PP0/KWP0 — Port P bit 0 / Key wake-up P0 |
| Chân 59 | PP1/KWP1 — Port P bit 1 / Key wake-up P1 |
| Chân 60 | PP2/KWP2 — Port P bit 2 / Key wake-up P2 |
| Chân 61 | PP3/KWP3 — Port P bit 3 / Key wake-up P3 |
| Chân 62 | PP4/KWP4 — Port P bit 4 / Key wake-up P4 |
| Chân 63 | PP5/KWP5 — Port P bit 5 / Key wake-up P5 |
| Chân 64 | PP6/KWP6 — Port P bit 6 / Key wake-up P6 |
| Chân 65 | PP7/KWP7 — Port P bit 7 / Key wake-up P7 |
| Chân 66 | PK0 — Port K bit 0 |
| Chân 67 | PK1 — Port K bit 1 |
| Chân 68 | PK2 — Port K bit 2 |
| Chân 69 | PK3 — Port K bit 3 |
| Chân 70 | PK4 — Port K bit 4 |
| Chân 71 | PK5 — Port K bit 5 |
| Chân 72 | PK6 — Port K bit 6 |
| Chân 73 | PK7 — Port K bit 7 |
| Chân 74 | PA0 — Port A bit 0 |
| Chân 75 | PA1 — Port A bit 1 |
| Chân 76 | PA2 — Port A bit 2 |
| Chân 77 | PA3 — Port A bit 3 |
| Chân 78 | PA4 — Port A bit 4 |
| Chân 79 | PA5 — Port A bit 5 |
| Chân 80 | PA6 — Port A bit 6 |
| Chân 81 | PA7 — Port A bit 7 |
| Chân 82 | PB0 — Port B bit 0 |
| Chân 83 | PB1 — Port B bit 1 |
| Chân 84 | PB2 — Port B bit 2 |
| Chân 85 | PB3 — Port B bit 3 |
| Chân 86 | PB4 — Port B bit 4 |
| Chân 87 | PB5 — Port B bit 5 |
| Chân 88 | PB6 — Port B bit 6 |
| Chân 89 | PB7 — Port B bit 7 |
| Chân 90 | PC0 — Port C bit 0 |
| Chân 91 | PC1 — Port C bit 1 |
| Chân 92 | PC2 — Port C bit 2 |
| Chân 93 | PC3 — Port C bit 3 |
| Chân 94 | PC4 — Port C bit 4 |
| Chân 95 | PC5 — Port C bit 5 |
| Chân 96 | PC6 — Port C bit 6 |
| Chân 97 | PC7 — Port C bit 7 |
| Chân 98 | PS0/RXD0 — Port S bit 0 / SCI0 RXD |
| Chân 99 | PS1/TXD0 — Port S bit 1 / SCI0 TXD |
| Chân 100 | PS2/RXD1 — Port S bit 2 / SCI1 RXD |
| Chân 101 | PS3/TXD1 — Port S bit 3 / SCI1 TXD |
| Chân 102 | PS4/MISO0 — Port S bit 4 / SPI0 MISO |
| Chân 103 | PS5/MOSI0 — Port S bit 5 / SPI0 MOSI |
| Chân 104 | PS6/SCK0 — Port S bit 6 / SPI0 SCK |
| Chân 105 | PS7/SS0 — Port S bit 7 / SPI0 SS |
| Chân 106 | PT0/IOC0C — Port T bit 0 / IOC channel 0 |
| Chân 107 | PT1/IOC1C — Port T bit 1 / IOC channel 1 |
| Chân 108 | PT2/IOC2C — Port T bit 2 / IOC channel 2 |
| Chân 109 | PT3/IOC3C — Port T bit 3 / IOC channel 3 |
| Chân 110 | PT4/IOC4C — Port T bit 4 / IOC channel 4 |
| Chân 111 | PT5/IOC5C — Port T bit 5 / IOC channel 5 |
| Chân 112 | PT6/IOC6C — Port T bit 6 / IOC channel 6 |
Ứng dụng tiêu biểu
MC9S12XD256VPV phù hợp cho 6 Áp dụngs: Automotive Body Control Module, Industrial CAN Gateway / Bridge, Instrument Cluster Slave Controller, HVAC Climate Controller, Lighting and ECM Controller, Industrial Sensor Interface Node.
Automotive Body Control Module
The MC9S12XD256VPV is widely used in body control modules (BCMs) that manage lights, door locks, wipers, mirrors and HVAC actuators across a CAN/LIN sub-network. The dual CAN 2.0A/B controllers allow the BCM to act as a gateway between the high-speed powertrain CAN and the low-speed body CAN, while the XGATE co-processor off-loads CAN message processing, freeing the main CPU to run application logic. With 256 KB Flash and 128 KB RAM, the XD256 comfortably fits J1939 and AUTOSAR light implementations. Industrial temperature grade (-40C to +85C) supports the harsh thermal environment under the dashboard. Compared with smaller S12G sub-nodes, the XD256 provides the throughput required for gateway and diagnostic services, ensuring high-throughput CAN handling under BCM workloads.
Được đề xuất
Industrial CAN Gateway / Bridge
The MC9S12XD256VPV's two independent CAN 2.0A/B controllers plus XGATE co-processor make it an ideal CAN-to-CAN or CAN-to-UART gateway in industrial automation and CANopen networks. The XGATE can service incoming CAN frames at up to 1 Mbit/s with deterministic latency, allowing the gateway to filter, ID-map and forward frames without consuming main-thread bandwidth. Designers use the SPI and SCI channels to bridge to RS-485 or Ethernet transceivers, while the 16-channel 10-bit ADC handles analog sensor inputs from industrial cabinets. With 256 KB Flash and industrial temperature grade, this part is well-suited to PLCs, distributed I/O nodes and CANopen master/slave bridges, particularly in deterministic CAN handling at gateway boundaries.
Được đề xuất
Instrument Cluster Slave Controller
The MC9S12XD256VPV serves as a slave MCU in instrument cluster designs where a host processor drives the display, but the MC9S12XD256VPV handles analog gauge sensing, switch debouncing, and warning lamp logic. Its enhanced capture timer (ECT) with 8 channels drives PWM dimming for backlight LEDs, while the 16-channel 10-bit ADC reads fuel level, oil pressure and temperature sensors. The XGATE off-loads time-critical PWM and ADC sequencing so the main CPU stays responsive to SPI messages from the host. Industrial temperature grade is required for under-dash thermal conditions. Compared with simpler S08 MCUs, the XD256 adds dual CAN, more Flash and XGATE for higher I/O density in clusters, providing high-resolution sensing and PWM dimming for instrument cluster subsystems.
Được đề xuất
HVAC Climate Controller
In automotive HVAC climate control modules, the MC9S12XD256VPV reads cabin NTC thermistors, ambient sensors and humidity sensors via the 16-channel ADC, drives the blend/air-mode stepper motors via PWM channels, and communicates with the BCM over CAN. The XGATE co-processor handles the multi-channel ADC scan sequence and PWM update without burdening the main CPU, enabling smooth air-mix transitions. The 256 KB Flash supports advanced control algorithms (PI loops, learned comfort settings) and CAN diagnostics. Industrial temperature grade ensures reliability in the dashboard thermal environment where ambient electric cost is a constant concern, supporting accurate closed-loop HVAC control across a wide temperature range.
Được đề xuất
Lighting and ECM Controller
The MC9S12XD256VPV is used in lighting control modules (LCMs) and electronic control modules (ECMs) for body electronics. Its 8-channel 8-bit PWM drives LED strings for tail lamps, indicators and daytime running lights, while the ECT handles PWM dimming curves and turn-signal feedback. The XGATE can sequence multi-channel PWM without main CPU load, enabling smooth fading and animated lighting patterns. Dual CAN support allows the LCM to participate in both body CAN and diagnostic CAN. Compared with discrete PWM ICs, the XD256 integrates diagnostics, CAN and Flash in one package, reducing BOM cost for body-electronics modules, supporting synchronized multi-channel PWM for advanced lighting signatures.
Được đề xuất
Industrial Sensor Interface Node
Distributed industrial sensor nodes often use the MC9S12XD256VPV as a CANopen or DeviceNet slave controller, aggregating analog and digital sensor data and forwarding it upstream over CAN. The 16-channel 10-bit ADC reads analog sensors (pressure, flow, level), while the ECT captures pulses from flow meters or encoders. Industrial CANopen stacks (e.g. CANopenNode) fit within the 256 KB Flash with room for application logic. The dual CAN controllers allow redundant CAN channels for safety-critical nodes. Compared with low-end 8051-based sensor nodes, the XD256 adds deterministic flash execution and dual CAN for fail-safe industrial sensor networks, supporting redundant CAN for safety-critical industrial nodes.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12XD256VPV — 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 | MC9S12XDP512VPV | MC9S12XD128VPV | MC9S12DT256VPVE | MC9S12XHZ256VAG | MC9S12XEQ512CAG |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | LQFP-112 (20x20) | LQFP-112 (20x20) - same | LQFP-112 (20x20) - same | LQFP-112 (20x20) - same | LQFP-112 (20x20) - same | LQFP-144 - different |
| Flash Memory | 256 KB | 512 KB | 128 KB | 256 KB | 256 KB | 512 KB |
| RAM | 128 KB | 32 KB | 16 KB | 12 KB | 16 KB | 32 KB |
| EEPROM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| CPU Core | HCS12X + XGATE | HCS12X + XGATE | HCS12X + XGATE | HCS12 (no XGATE) | HCS12X + XGATE | HCS12X + XGATE |
| CAN Channels | 2 x MSCAN | 3 x MSCAN | 2 x MSCAN | 2 x MSCAN | 2 x MSCAN | 5 x MSCAN |
| Maximum Bus Frequency | 80 MHz | 80 MHz | 80 MHz | 25 MHz | 80 MHz | 80 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- XGATE co-processor for offloaded I/O processing (vsMC9S12DT256VPVE)
- Higher RAM for XC0-grade memory architecture (vsMC9S12XD128VPV)
- Same LQFP-112 footprint with Flash upgrade path (vsMC9S12XDP512VPV)
- Dual MSCAN for gateway/CAN-bridging (vsMC9S12G128 (single MSCAN))
Ghi chú thiết kế
The MC9S12XD256VPV requires careful power decoupling. Place a 100 nF ceramic capacitor on each VDD/VSS pair as close as possible to the pins (within 2 mm). Add bulk 4.7 uF to 10 uF tantalum or ceramic capacitors on the main VDD rail. The on-chip voltage regulator (VDDR) requires a 1 uF to 4.7 uF decoupling cap on the VDDR pin for PLL noise rejection. Separate VDDX/VSSX (I/O supply) and VDDA/VSSA (analog supply) decoupling is critical for ADC accuracy; route VDDA through a ferrite bead from VDDX if a common supply is used.
Place the 4-16 MHz crystal or resonator within 1 cm of the EXTAL/XTAL pins, with the load capacitors (typically 10-22 pF) co-located. Guard the XTAL traces with a ground pour and avoid routing signal traces under the crystal to avoid EMC issues. For BDM debug, route the BKGD and MODC pins to a 2x5 header with proper ESD protection. The LQFP-112 thermal pad (if exposed) should be soldered to a ground copper pour with thermal vias for heat dissipation.
Common pitfalls: (1) Forgetting to tie TEST pin to VSS - leaving it floating causes unpredictable behavior or test mode entry. (2) Missing reset pull-up on RESET pin - the internal pull-up is weak; add an external 4.7 kohm to VDDR. (3) Not configuring the PLL filter capacitor on the VDDPLL/VSSPLL pair - PLL jitter causes bus errors. (4) Using BDM in secure mode without unlocking - firmware may be locked inadvertently if security bits are set early. (5) Exceeding 5.5V on VDDX will damage the I/O; if using a 12V automotive supply, add a 5V regulator upstream.
For long CAN bus stubs, terminate with 120 ohm at each end of the bus. Use a twisted pair and keep stubs shorter than 0.3 m to avoid reflections. The MC9S12XD256VPV's MSCAN bit timing must be configured to match the bus length and baud rate; use NXP's CAN timing calculator tool. For SPI buses above 4 MHz, use series 33 ohm resistors near the MCU pins to dampen ringing on long PCB traces.
Estimated: at typical automotive body-control workloads (CPU + XGATE at 50% utilization), the MC9S12XD256VPV draws ~80 mA from 5V, dissipating ~400 mW. The LQFP-112 with a standard 4-layer PCB has theta_JA ~ 35 C/W, producing a 14C junction rise at 25C ambient - well within limits. For sealed enclosures with limited airflow, derate the supply voltage to 3.3V where possible to reduce dissipation by 56%.
Thông tin tuân thủ
RoHS and lead-free per NXP product declaration. The VPV suffix is industrial-grade (-40C to +85C); for AEC-Q100 automotive qualification, choose the MC9S12XD256MPV variant with M-suffix. REACH SVHC and conflict-minerals status compliant per NXP environmental disclosure.
