MC9S12DG256BVPV - 16-bit 25MHz HCS12 MCU 256KB Flash | NXP
MPN: MC9S12DG256BVPV ✓ Hoạt độngMC9S12DG256BVPV Tóm tắt
An HCS12 microcontroller is a 16-bit CISC MCU family built around the CPU12 core, a successor to the HC11 with enhanced addressing, indexed operations, and a background debug mode (BDM) interface. The MC9S12D sub-family extends the architecture with modular memory and peripheral options so that designers can scale software across pin-compatible derivatives from 128 KB up to 512 KB Flash. This positioning places the HCS12 between 8-bit automotive MCUs (HC08) and 32-bit Power Architecture/ARM parts, offering CAN connectivity and rich analog in a low-cost, well-understood toolchain.
Key features include 256 KB Flash (organized as 256K x 8), 4 KB EEPROM, 12 KB RAM, two 10-bit ADC modules, an 8-channel enhanced capture timer, eight PWM channels, two SCI, one SPI, one I2C, one CAN 2.0 A/B controller, and a BDM debug port. The device operates from 5 V (with 2.5 V internal regulator) across the -40 C to +85 C industrial temperature range. Programmable interrupt controller and PLL clock generation support flexible system timing.
The architecture uses a 16-bit CPU12 core with a hardware multiply/divide accelerator and a unified memory map, enabling C-compiler-friendly code generation. The internal 2.5 V regulator powers the core while the I/O ring stays at 5 V for noise-tolerant automotive signaling. The CAN module is M_CAN compatible and supports both standard and extended identifiers, easing integration with automotive body and chassis networks.
Typical applications include automotive body controllers, instrument clusters, HVAC panels, seat and mirror modules, industrial CAN nodes, and any 16-bit embedded control design with CAN connectivity. The wide operating voltage and industrial temperature rating also suit building automation and heavy-equipment telematics. When migrating from an HC08 design, the HCS12 preserves peripheral and toolchain compatibility while adding more memory and CAN hardware.
Bộ thay thế dễ dàng lắp đặt cho MC9S12DG256BVPV — 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 MC9S12DG256BVPV (cùng hình factor và footprint) — khác nhau ở Package, ADC, Supply Voltage, Operating Temperature, Mounting Type.
MC9S12DG256CPVE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DG256BCPV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DT256BVPV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12A256CPVE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DG256MPVE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DG256BVPV Tỷ lệ tối đa & tính chất điện
| Core Processor | HCS12 (CPU12) |
| Core Size | 16-bit |
| Maximum Clock Speed | 25 MHz |
| Program Memory Size | 256 KB (256K x 8) Flash |
| RAM Size | 12 KB |
| EEPROM Size | 4 KB |
| Hộp | 112-LQFP (20x20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Điện áp cung cấp hoạt động | 2.5 V core / 5 V I/O (single 5 V supply with internal regulator) |
| Nhiệt độ hoạt động | -40 C to +85 C |
| Number of I/O | 91 |
| ADC | 2 x 8-channel 10-bit |
| PWM Channels | 8 |
| Communication Interfaces | CAN, I2C, SCI, SPI |
| Connectivity | CAN 2.0 A/B, I2C, SPI, 2x SCI |
| Peripherals | PWM, WDT, POR, LVD, BDM debug |
| Data Converters | A/D 16x10b |
| Oscillator Type | Internal PLL + external crystal |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân MC9S12DG256BVPV
| Chân 1 | PAD0 — Port AD input/output bit 0 |
| Chân 2 | PAD1 — Port AD input/output bit 1 |
| Chân 3 | PAD2 — Port AD input/output bit 2 |
| Chân 4 | PAD3 — Port AD input/output bit 3 |
| Chân 5 | PAD4 — Port AD input/output bit 4 |
| Chân 6 | PAD5 — Port AD input/output bit 5 |
| Chân 7 | PAD6 — Port AD input/output bit 6 |
| Chân 8 | PAD7 — Port AD input/output bit 7 |
| Chân 9 | VDDR — Voltage reference for Port AD |
| Chân 10 | VSS — Digital ground |
| Chân 11 | VDD — Digital 5 V supply |
| Chân 12 | PAD8 — Port AD input/output bit 8 |
| Chân 13 | PAD9 — Port AD input/output bit 9 |
| Chân 14 | PAD10 — Port AD input/output bit 10 |
| Chân 15 | PAD11 — Port AD input/output bit 11 |
| Chân 16 | PAD12 — Port AD input/output bit 12 |
| Chân 17 | PAD13 — Port AD input/output bit 13 |
| Chân 18 | PAD14 — Port AD input/output bit 14 |
| Chân 19 | PAD15 — Port AD input/output bit 15 |
| Chân 20 | BKGD — Background Debug Mode interface |
| Chân 21 | RESET — Active-low reset input |
| Chân 22 | VDDPLL — PLL supply voltage |
| Chân 23 | VSSPLL — PLL ground |
| Chân 24 | EXTAL — External clock/crystal input |
| Chân 25 | XTAL — Crystal output |
| Chân 26 | MODC — Mode select input |
| Chân 27 | PAD16 — Port AD input/output bit 16 / AN0 |
| Chân 28 | PAD17 — Port AD input/output bit 17 / AN1 |
| Chân 29 | PAD18 — Port AD input/output bit 18 / AN2 |
| Chân 30 | PAD19 — Port AD input/output bit 19 / AN3 |
| Chân 31 | PAD20 — Port AD input/output bit 20 / AN4 |
| Chân 32 | PAD21 — Port AD input/output bit 21 / AN5 |
| Chân 33 | PAD22 — Port AD input/output bit 22 / AN6 |
| Chân 34 | PAD23 — Port AD input/output bit 23 / AN7 |
| Chân 35 | VDDA — ADC supply voltage |
| Chân 36 | VSSA — ADC ground |
| Chân 37 | PWM0 — PWM channel 0 output |
| Chân 38 | PWM1 — PWM channel 1 output |
| Chân 39 | PWM2 — PWM channel 2 output |
| Chân 40 | PWM3 — PWM channel 3 output |
| Chân 41 | PWM4 — PWM channel 4 output |
| Chân 42 | PWM5 — PWM channel 5 output |
| Chân 43 | PWM6 — PWM channel 6 output |
| Chân 44 | PWM7 — PWM channel 7 output |
| Chân 45 | PP0 — Port P I/O bit 0 |
| Chân 46 | PP1 — Port P I/O bit 1 |
| Chân 47 | PP2 — Port P I/O bit 2 |
| Chân 48 | PP3 — Port P I/O bit 3 |
| Chân 49 | PP4 — Port P I/O bit 4 |
| Chân 50 | PP5 — Port P I/O bit 5 |
| Chân 51 | PP6 — Port P I/O bit 6 |
| Chân 52 | PP7 — Port P I/O bit 7 |
| Chân 53 | PT0 — Port T I/O bit 0 |
| Chân 54 | PT1 — Port T I/O bit 1 |
| Chân 55 | PT2 — Port T I/O bit 2 |
| Chân 56 | PT3 — Port T I/O bit 3 |
| Chân 57 | PT4 — Port T I/O bit 4 |
| Chân 58 | PT5 — Port T I/O bit 5 |
| Chân 59 | PT6 — Port T I/O bit 6 |
| Chân 60 | PT7 — Port T I/O bit 7 |
| Chân 61 | PS0 — Port S I/O bit 0 / RXD0 |
| Chân 62 | PS1 — Port S I/O bit 1 / TXD0 |
| Chân 63 | PS2 — Port S I/O bit 2 / RXD1 |
| Chân 64 | PS3 — Port S I/O bit 3 / TXD1 |
| Chân 65 | PS4 — Port S I/O bit 4 / MOSI |
| Chân 66 | PS5 — Port S I/O bit 5 / MISO |
| Chân 67 | PS6 — Port S I/O bit 6 / SPSCK |
| Chân 68 | PS7 — Port S I/O bit 7 / SS |
| Chân 69 | PJ0 — Port J I/O bit 0 / SDA |
| Chân 70 | PJ1 — Port J I/O bit 1 / SCL |
| Chân 71 | PJ2 — Port J I/O bit 2 |
| Chân 72 | PJ3 — Port J I/O bit 3 |
| Chân 73 | PJ4 — Port J I/O bit 4 |
| Chân 74 | PJ5 — Port J I/O bit 5 |
| Chân 75 | PJ6 — Port J I/O bit 6 |
| Chân 76 | PJ7 — Port J I/O bit 7 |
| Chân 77 | PM0 — Port M I/O bit 0 / CAN0TX |
| Chân 78 | PM1 — Port M I/O bit 1 / CAN0RX |
| Chân 79 | PM2 — Port M I/O bit 2 |
| Chân 80 | PM3 — Port M I/O bit 3 |
| Chân 81 | PM4 — Port M I/O bit 4 |
| Chân 82 | PM5 — Port M I/O bit 5 |
| Chân 83 | PM6 — Port M I/O bit 6 |
| Chân 84 | PM7 — Port M I/O bit 7 |
| Chân 85 | PE0 — Port E I/O bit 0 / IRQ |
| Chân 86 | PE1 — Port E I/O bit 1 / XIRQ |
| Chân 87 | PE2 — Port E I/O bit 2 |
| Chân 88 | PE3 — Port E I/O bit 3 |
| Chân 89 | PE4 — Port E I/O bit 4 |
| Chân 90 | PE5 — Port E I/O bit 5 |
| Chân 91 | PE6 — Port E I/O bit 6 |
| Chân 92 | PE7 — Port E I/O bit 7 |
| Chân 93 | VDDX — I/O supply voltage |
| Chân 94 | VSSX — I/O ground |
| Chân 95 | PK0 — Port K I/O bit 0 |
| Chân 96 | PK1 — Port K I/O bit 1 |
| Chân 97 | PK2 — Port K I/O bit 2 |
| Chân 98 | PK3 — Port K I/O bit 3 |
| Chân 99 | PK4 — Port K I/O bit 4 |
| Chân 100 | PK5 — Port K I/O bit 5 |
| Chân 101 | PK6 — Port K I/O bit 6 |
| Chân 102 | PK7 — Port K I/O bit 7 |
| Chân 103 | PH0 — Port H I/O bit 0 |
| Chân 104 | PH1 — Port H I/O bit 1 |
| Chân 105 | PH2 — Port H I/O bit 2 |
| Chân 106 | PH3 — Port H I/O bit 3 |
| Chân 107 | PH4 — Port H I/O bit 4 |
| Chân 108 | PH5 — Port H I/O bit 5 |
| Chân 109 | PH6 — Port H I/O bit 6 |
| Chân 110 | PH7 — Port H I/O bit 7 |
| Chân 111 | VDD — Digital 5 V supply |
| Chân 112 | VSS — Digital ground |
Ứng dụng tiêu biểu
MC9S12DG256BVPV phù hợp cho 6 Áp dụngs: Automotive Body Controller, Instrument Cluster, HVAC Control Module, Industrial CAN Node, Seat and Mirror Module, Building Automation Controller.
Automotive Body Controller
The MC9S12DG256BVPV is a strong fit for automotive body controllers because of its on-chip CAN 2.0 A/B controller (msCAN), 5 V I/O tolerance, and 91 general-purpose I/O lines that drive lamps, motors, and switches without external glue logic. The 256 KB Flash holds bootloader plus body-control firmware with margin for feature growth, while the 12 KB RAM comfortably accommodates CAN message buffers and task stacks. Designers typically place the part between a 12 V-to-5 V regulator and the load-driver stages, using the 8-channel PWM to modulate LED dimming and the 10-bit ADC to read battery voltage and thermistor inputs. Industrial-grade temperature rating (-40 C to +85 C) is sufficient for cabin modules.
Được đề xuất
Instrument Cluster
An automotive instrument cluster benefits from the MC9S12DG256BVPV's 8-channel PWM for gauge pointer control and its dual 10-bit ADC modules for fuel-level and temperature sensing. The 256 KB Flash supports a real-time operating system plus graphics libraries for segment or small dot-matrix LCDs, and the 5 V I/O ring interfaces directly to stepper-motor drivers and warning-LED arrays. The CPU12 core's efficient C-compiled code keeps pointer updates jitter-free at the 25 MHz bus rate, while the msCAN module receives vehicle-speed and engine-RPM data from the powertrain CAN bus.
Được đề xuất
HVAC Control Module
The MC9S12DG256BVPV suits HVAC control modules that demand multiple PWM outputs for blower-speed control and mode doors, plus ADC channels for cabin and ambient temperature. The on-chip SPI can drive a character-LCD or small TFT panel for the climate display, while the I2C bus talks to digital temperature sensors and EEPROM for trim storage. The internal 2.5 V regulator simplifies the power tree to a single 5 V rail, and the BDM interface speeds firmware calibration on the production line. Pin-compatible migration to 512 KB Flash derivatives is possible if HVAC software grows.
Được đề xuất
Industrial CAN Node
Industrial CAN nodes such as sensor aggregators and motor-control satellite modules can use the MC9S12DG256BVPV as a cost-effective 16-bit controller with hardware CAN. The 256 KB Flash accommodates a CANopen or DeviceNet stack alongside the application code, and the two SCI ports support RS-232/RS-485 service interfaces. The 10-bit ADC with 16 channels is enough for multi-sensor acquisition, and the 8-channel PWM can drive solenoids or LED indicators. The -40 C to +85 C range covers most factory-floor and outdoor enclosures.
Được đề xuất
Seat and Mirror Module
Seat and mirror modules need precise multi-channel PWM (for motor position) plus reliable CAN communication with the body controller, and the MC9S12DG256BVPV provides both. The 8-channel enhanced capture timer measures position feedback while the 8-channel PWM drives the drive motors in both directions through external H-bridges. The 256 KB Flash holds calibration tables for different vehicle variants, and the 12 KB RAM is ample for position tracking. BDM debug simplifies factory calibration, and the 5 V I/O ring eliminates level shifters to the motor-driver stages.
Được đề xuất
Building Automation Controller
Building-automation controllers (lighting panels, access-control readers, HVAC zoning) can leverage the MC9S12DG256BVPV's CAN or I2C backbone, 8-channel PWM for dimmer outputs, and 10-bit ADC for analog sensor inputs. The 256 KB Flash supports BACnet or Modbus stacks, and the 4 KB EEPROM stores configuration parameters across power cycles. The wide operating voltage and industrial temperature rating suit equipment rooms and rooftop installations. Pin compatibility with the broader HCS12 family enables designers to reuse firmware across multiple controller SKUs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12DG256BVPV — 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 | MC9S12DG256CPVE | MC9S12DG256BCPV | MC9S12DT256BVPV | MC9S12A256CPVE | MC9S12DG256MPVE |
|---|---|---|---|---|---|---|
| Package | 112-LQFP (20x20) | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Processor | HCS12 (CPU12) | HCS12 (CPU12) | HCS12 (CPU12) | HCS12 (CPU12) | HCS12 (CPU12) | HCS12 (CPU12) |
| Maximum Clock Speed | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Flash Size | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| RAM Size | 12 KB | 12 KB | 12 KB | 12 KB | 12 KB | 12 KB |
| CAN Controllers | 1 x msCAN | 1 x msCAN | 1 x msCAN | 2 x msCAN | 1 x msCAN | 1 x msCAN |
| Temperature Grade | Industrial (-40C to +85C) | Extended automotive | Industrial | Industrial | Extended automotive | Industrial |
| RoHS Compliance | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Bảo phân biệt quan trọng
- Industrial-grade temperature in the BVPV suffix variant (vsMC9S12DG256CPVE)
- Single msCAN + maximum pin compatibility (vsMC9S12DT256BVPV)
- 256 KB Flash without second CAN (vsMC9S12A256CPVE)
Ghi chú thiết kế
Decouple every VDD/VSS pair close to the IC with a 100 nF ceramic plus a bulk 4.7 uF tantalum or ceramic, and add a 1 uF + 10 nF pair on VDDA/VSSA to keep ADC noise low. Place the bulk capacitor within 25 mm of the supply pins and route a wide, low-impedance ground plane directly under the LQFP-112 footprint. The internal 2.5 V regulator still requires a stable 5 V input; add a Pi-filter (ferrite + cap) when sharing the 5 V rail with inductive loads.
Estimated: with a 4-layer PCB and the recommended footprint, theta_JA for the 112-LQFP-20 is approximately 45 C/W in still air. At 25 MHz with all peripherals active, power dissipation is roughly 250 mW, producing a self-heating rise of only 11 C above ambient - well within the 85 C ceiling. For sealed enclosures without airflow, derate the bus frequency or add a copper heat-spreader footprint under the exposed die paddle area.
Keep the BDM (BKGD) trace under 50 mm and protect it with a series 4.7 k resistor to avoid programming glitches. Place the EXTAL/XTAL crystal within 10 mm of the pins with a grounded guard ring to suppress crosstalk. The CAN bus traces should be a 120 ohm differential pair routed away from PWM edges to meet CAN 2.0 signal-integrity margins, and the analog inputs (AN0-AN7) should be guarded by a ground trace to reject switching noise.
Do not leave MODC floating - tie it to VDD or GND through a 10 k resistor to select the desired mode after reset. The MODC, BKGD, and RESET pins are critical for in-circuit programming and must be brought to test points if production-line firmware updates are planned. Verify the PLL filter components (R-C network on VDDPLL/VSSPLL) match the manufacturer reference design; incorrect values will prevent the bus from locking at 25 MHz.
Thông tin tuân thủ
RoHS and REACH compliant per DigiKey product listing. The MC9S12DG256BVPV is the industrial-temperature grade; for AEC-Q100 automotive qualification choose the MC9S12DG256CPVE or equivalent Q-suffix variant. Halogen-free status not stated on the distributor page - verify with the manufacturer before halogen-sensitive designs.
