MC9S12DT128MPV - 16-bit HCS12 MCU, 128KB Flash, 112-LQFP | NXP
MPN: MC9S12DT128MPV ✓ Hoạt độngMC9S12DT128MPV Tóm tắt
A microcontroller (MCU) is an integrated circuit that combines a CPU core, memory (Flash, RAM, EEPROM), and on-chip peripherals into a single device used to control embedded systems. Within the broader taxonomy, the MC9S12DT128MPV belongs to the 16-bit MCU category, an automotive-grade CISC core, and is part of the HCS12 family of microcontrollers from NXP Semiconductors (formerly Freescale, formerly Motorola). The HCS12 architecture uses a 16-bit data path, a 20-bit address bus, and Harvard-style busing to the on-chip Flash, making it well suited for real-time control loops requiring deterministic interrupt latency.
Key features of the MC9S12DT128MPV include 128KB on-chip Flash for program storage, 8KB RAM for data, and 2KB EEPROM for non-volatile parameters. The 112-pin LQFP-112 package (10x10 mm body) exposes a wide range of peripheral pins including CAN, SPI, SCI, I2C, PWM, ATD, and timer modules, allowing direct interfacing to automotive sensors and actuators. Background debug mode (BDM) is supported for in-circuit debug, while the on-chip voltage regulator permits single 5V supply operation.
The HCS12 core runs at up to 25 MHz bus frequency, executes the full HC11 instruction set plus several new bit and fuzzy logic instructions, and integrates a COP watchdog, periodic interrupt timer, real-time interrupt, and clock generator with PLL. Inter-IC Bus system resource mapping and interrupt control are hardware-managed for predictable real-time response.
Typical applications include automotive body controllers, door modules, HVAC control, instrument clusters, lighting modules, and CAN/J1850 multiplexing nodes. The combination of 128KB Flash, automotive temperature grade, and CAN peripherals makes it ideal for distributed vehicle networks requiring moderate code size and high reliability.
Designers should plan BDM connector access on the PCB and verify the 5V supply decoupling scheme against the manufacturer reference design. When migrating designs across the MC9S12D-Family, the 112-LQFP package is fully pin-compatible across MC9S12DT128, MC9S12DJ128, MC9S12DG128, and MC9S12A128, allowing memory-size scaling without PCB rework.
This page synthesizes distributor stock, AEC-Q100 temperature grading, drop-in MC9S12D-Family alternatives, and practical automotive design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MC9S12DT128MPV — 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 MC9S12DT128MPV (cùng hình factor và footprint) — khác nhau ở Package, Supply Voltage, Core Processor, Operating Temperature, Core Architecture.
MC9S12DT128MPVE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DG128MPV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC912DG128ACPVE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DJ128MFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12A512CPVE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12E256CFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DT128MPV Tỷ lệ tối đa & tính chất điện
| Core Architecture | HCS12 16-bit CISC |
| Program Memory (Flash) | 128 KB |
| RAM | 8 KB |
| EEPROM | 2 KB |
| Bus Frequency (max) | 25 MHz |
| Điện áp cung cấp | 2.5 V / 5 V |
| Nhiệt độ hoạt động | -40 C to +125 C (Automotive Grade) |
| Hộp | 112-pin LQFP |
| Kiểu lắp đặt | Surface Mount (Gull-Wing) |
| Package Dimensions | 20 mm x 20 mm body (LQFP-112) |
| SCI (UART) Modules | 2 |
| ADC | Two 8-channel, 10-bit ATD |
| PWM Channels | 8 channels |
| Timer Modules | 8-channel IC/OC enhanced capture timer |
| Discrete Digital I/O | 20 lines |
| Background Debug Mode | Yes (BDM) |
| On-Chip Voltage Regulator | Yes (single 5V supply) |
| Watchdog | Yes (COP) |
Cấu hình chân MC9S12DT128MPV
| Chân 1 | TXCAN0 — CAN 0 transmit output |
| Chân 2 | RXCAN0 — CAN 0 receive input |
| Chân 3 | BKGD — Background Debug Mode |
| Chân 4 | RESET — External reset input (active low) |
| Chân 5 | VDDR — Voltage regulator supply |
| Chân 6 | VDD — Digital supply voltage |
| Chân 7 | VSS — Digital ground |
| Chân 8 | XOSC — External oscillator / crystal |
| Chân 9 | EXTAL — External clock input |
| Chân 10 | XTAL — Crystal output |
| Chân 11 | PAD0 — Port AD bit 0 (ATD / GPIO) |
| Chân 12 | PAD1 — Port AD bit 1 (ATD / GPIO) |
| Chân 13 | PAD2 — Port AD bit 2 (ATD / GPIO) |
| Chân 14 | PAD3 — Port AD bit 3 (ATD / GPIO) |
| Chân 15 | PAD4 — Port AD bit 4 (ATD / GPIO) |
| Chân 16 | PAD5 — Port AD bit 5 (ATD / GPIO) |
| Chân 17 | PAD6 — Port AD bit 6 (ATD / GPIO) |
| Chân 18 | PAD7 — Port AD bit 7 (ATD / GPIO) |
| Chân 19 | PAD8 — Port AD bit 8 (ATD / GPIO) |
| Chân 20 | PAD9 — Port AD bit 9 (ATD / GPIO) |
| Chân 21 | PAD10 — Port AD bit 10 (ATD / GPIO) |
| Chân 22 | PAD11 — Port AD bit 11 (ATD / GPIO) |
| Chân 23 | PAD12 — Port AD bit 12 (ATD / GPIO) |
| Chân 24 | PAD13 — Port AD bit 13 (ATD / GPIO) |
| Chân 25 | PAD14 — Port AD bit 14 (ATD / GPIO) |
| Chân 26 | PAD15 — Port AD bit 15 (ATD / GPIO) |
| Chân 27 | VDDA — Analog supply for ATD |
| Chân 28 | VSSA — Analog ground for ATD |
| Chân 29 | VRH — ATD high reference voltage |
| Chân 30 | VRL — ATD low reference voltage |
| Chân 31 | PP0 — PWM channel 0 |
| Chân 32 | PP1 — PWM channel 1 |
| Chân 33 | PP2 — PWM channel 2 |
| Chân 34 | PP3 — PWM channel 3 |
| Chân 35 | PP4 — PWM channel 4 |
| Chân 36 | PP5 — PWM channel 5 |
| Chân 37 | PP6 — PWM channel 6 |
| Chân 38 | PP7 — PWM channel 7 |
| Chân 39 | VDD — Digital supply voltage |
| Chân 40 | VSS — Digital ground |
| Chân 41 | PT0 — Port T bit 0 (timer / GPIO) |
| Chân 42 | PT1 — Port T bit 1 (timer / GPIO) |
| Chân 43 | PT2 — Port T bit 2 (timer / GPIO) |
| Chân 44 | PT3 — Port T bit 3 (timer / GPIO) |
| Chân 45 | PT4 — Port T bit 4 (timer / GPIO) |
| Chân 46 | PT5 — Port T bit 5 (timer / GPIO) |
| Chân 47 | PT6 — Port T bit 6 (timer / GPIO) |
| Chân 48 | PT7 — Port T bit 7 (timer / GPIO) |
| Chân 49 | PS0 — Port S bit 0 (SPI / GPIO) |
| Chân 50 | PS1 — Port S bit 1 (SPI / GPIO) |
| Chân 51 | PS2 — Port S bit 2 (SPI / GPIO) |
| Chân 52 | PS3 — Port S bit 3 (SPI / GPIO) |
| Chân 53 | PS4 — Port S bit 4 (SPI / GPIO) |
| Chân 54 | PS5 — Port S bit 5 (SPI / GPIO) |
| Chân 55 | PS6 — Port S bit 6 (SPI / GPIO) |
| Chân 56 | PS7 — Port S bit 7 (SPI / GPIO) |
| Chân 57 | PM0 — Port M bit 0 (CAN / GPIO) |
| Chân 58 | PM1 — Port M bit 1 (CAN / GPIO) |
| Chân 59 | VDD — Digital supply voltage |
| Chân 60 | VSS — Digital ground |
| Chân 61 | PJ0 — Port J bit 0 (GPIO) |
| Chân 62 | PJ1 — Port J bit 1 (GPIO) |
| Chân 63 | PJ2 — Port J bit 2 (GPIO) |
| Chân 64 | PJ3 — Port J bit 3 (GPIO) |
| Chân 65 | PJ4 — Port J bit 4 (GPIO) |
| Chân 66 | PJ5 — Port J bit 5 (GPIO) |
| Chân 67 | PJ6 — Port J bit 6 (GPIO) |
| Chân 68 | PJ7 — Port J bit 7 (GPIO) |
| Chân 69 | PK0 — Port K bit 0 (GPIO) |
| Chân 70 | PK1 — Port K bit 1 (GPIO) |
| Chân 71 | PK2 — Port K bit 2 (GPIO) |
| Chân 72 | PK3 — Port K bit 3 (GPIO) |
| Chân 73 | PK4 — Port K bit 4 (GPIO) |
| Chân 74 | PK5 — Port K bit 5 (GPIO) |
| Chân 75 | PK6 — Port K bit 6 (GPIO) |
| Chân 76 | PK7 — Port K bit 7 (GPIO) |
| Chân 77 | PAn — Port A bit n (address/data) |
| Chân 78 | VDDPLL — PLL supply voltage |
| Chân 79 | VSSPLL — PLL ground |
| Chân 80 | PE0 — Port E bit 0 (IRQ / GPIO) |
| Chân 81 | PE1 — Port E bit 1 (IRQ / GPIO) |
| Chân 82 | PE2 — Port E bit 2 (IRQ / GPIO) |
| Chân 83 | PE3 — Port E bit 3 (IRQ / GPIO) |
| Chân 84 | PE4 — Port E bit 4 (IRQ / GPIO) |
| Chân 85 | PE5 — Port E bit 5 (IRQ / GPIO) |
| Chân 86 | PE6 — Port E bit 6 (IRQ / GPIO) |
| Chân 87 | PE7 — Port E bit 7 (IRQ / GPIO) |
| Chân 88 | PH0 — Port H bit 0 (SCI / GPIO) |
| Chân 89 | PH1 — Port H bit 1 (SCI / GPIO) |
| Chân 90 | PH2 — Port H bit 2 (SCI / GPIO) |
| Chân 91 | PH3 — Port H bit 3 (SCI / GPIO) |
| Chân 92 | PH4 — Port H bit 4 (SCI / GPIO) |
| Chân 93 | PH5 — Port H bit 5 (SCI / GPIO) |
| Chân 94 | PH6 — Port H bit 6 (SCI / GPIO) |
| Chân 95 | PH7 — Port H bit 7 (SCI / GPIO) |
| Chân 96 | PI0 — Port I bit 0 (PWM / GPIO) |
| Chân 97 | PI1 — Port I bit 1 (PWM / GPIO) |
| Chân 98 | PI2 — Port I bit 2 (PWM / GPIO) |
| Chân 99 | PI3 — Port I bit 3 (PWM / GPIO) |
| Chân 100 | PI4 — Port I bit 4 (PWM / GPIO) |
| Chân 101 | PI5 — Port I bit 5 (PWM / GPIO) |
| Chân 102 | PI6 — Port I bit 6 (PWM / GPIO) |
| Chân 103 | PI7 — Port I bit 7 (PWM / GPIO) |
| Chân 104 | VDD — Digital supply voltage |
| Chân 105 | VSS — Digital ground |
| Chân 106 | TEST — Test mode pin (tie to VSS for normal operation) |
| Chân 107 | NC — Not connected (per datasheet) |
| Chân 108 | NC — Not connected (per datasheet) |
| Chân 109 | NC — Not connected (per datasheet) |
| Chân 110 | NC — Not connected (per datasheet) |
| Chân 111 | NC — Not connected (per datasheet) |
| Chân 112 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MC9S12DT128MPV phù hợp cho 6 Áp dụngs: Automotive Body Control Module, HVAC Control Module, Door Module / Mirror Control, Instrument Cluster Controller, Lighting Control Module, CAN/J1850 Multiplexing Node.
Automotive Body Control Module
The MC9S12DT128MPV fits body control modules because its 128 KB Flash comfortably hosts typical BCM firmware (lighting, wipers, locks, alarms) while its 112-LQFP package exposes enough I/O to drive multiple loads directly. The two SCI channels plus CAN peripheral provide robust networking to other ECUs on the vehicle CAN bus, and the -40C to +125C automotive temperature grade handles under-dash thermal stress. The on-chip voltage regulator simplifies the 5V-only power supply, and BDM enables production-line firmware programming without an emulator.
Được đề xuất
HVAC Control Module
HVAC climate control modules benefit from the MC9S12DT128MPV's two 8-channel 10-bit ATD converters for reading temperature sensors and blower feedback, plus its 8-channel PWM for driving blower and blend-door motors. The 8-channel IC/OC enhanced capture timer accurately measures fan tach pulses, while 128 KB Flash stores calibration tables and diagnostics. Compared with switching regulators, the on-chip linear regulator provides clean analog rails for sensor conditioning without injecting switching noise into the ADC inputs.
Được đề xuất
Door Module / Mirror Control
Door modules controlling power windows, mirrors, and locks fit the MC9S12DT128MPV because the 20 discrete digital I/O lines plus 8 PWM channels can drive mirror motors, window regulators, and lock solenoids. The 2 KB EEPROM stores window anti-pinch calibration and personalization settings that survive battery disconnect. Per the MC9S12D-Family user guide, this MCU's LIN-friendly SCI implementation is widely used in distributed door node architectures alongside a central BCM.
Được đề xuất
Instrument Cluster Controller
Instrument clusters benefit from the MC9S12DT128MPV's HCS12 25 MHz core, which generates stepper-motor gauge drives and warning-indicator PWM at real-time rates without jitter. The 8 KB RAM is sufficient for odometer, trip, and diagnostic data buffers, while 2 KB EEPROM stores persistent vehicle data. The 112-LQFP provides enough pins to drive analog gauge coils, LED backlights, and the cluster's CAN interface to the rest of the vehicle network.
Được đề xuất
Lighting Control Module
Headlight and interior lighting modules rely on the MC9S12DT128MPV's 8-channel PWM for LED dimming curves and the 8-channel ATD for monitoring current-sense resistors on each LED string. Automotive temperature grade ensures stable PWM duty cycle from cold-start to under-hood soak. The 128 KB Flash supports adaptive driving beam (ADB) algorithms and diagnostic fault logging per automotive standards.
Được đề xuất
CAN/J1850 Multiplexing Node
Distributed vehicle networks benefit from the MC9S12DT128MPV's CAN peripheral (where present) plus two SCI channels for LIN/J1850 bridging. According to the NXP 9S12DT128DGV2 user guide, this MCU was specifically designed for multiplexing nodes that aggregate sensor data and forward it over CAN to the central gateway. The 112-LQFP provides enough pins to read multiple switch and sensor inputs without an external I/O expander.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12DT128MPV — 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 | MC9S12DT128MPVE | MC9S12DG128MPV | MC912DG128ACPVE | MC9S12DJ128MFUE | MC9S12A512CPVE | MC9S12E256CFUE |
|---|---|---|---|---|---|---|---|
| Package | 112-LQFP (20x20 mm) | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same | 112-LQFP (20x20 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 512 KB | 256 KB |
| Bus Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Operating Temperature | -40 C to +125 C (Automotive) | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
Bảo phân biệt quan trọng
- Automotive-grade 112-LQFP with 128 KB Flash and 2 KB EEPROM (vsMC9S12DG128MPV)
- Pin-compatible 128 KB Flash upgrade path to 512 KB (vsMC9S12A512CPVE)
- Mature automotive production history (>15 years) (vsMC9S12XS128MAE)
Ghi chú thiết kế
Place 100 nF ceramic decoupling capacitors on every VDD/VSS pair (typically 4-6 pairs around the 112-LQFP periphery) and a single 10 uF tantalum bulk cap on the main VDD supply. The internal 2.5V regulator (VDDR pin) requires its own 100 nF + 4.7 uF bypass network. Per the NXP 9S12DT128DGV2 user guide, inadequate decoupling can cause PLL lock loss and intermittent resets under load-dump conditions.
Route the BDM (BKGD) trace as a 3-wire interface (BKGD, GND, VDD) accessible via a 2x3 pin header or Tag-Connect footprint. Keep BKGD trace length under 50 mm to avoid programming/debug failures. The 112-LQFP package uses gull-wing leads at 0.5 mm pitch - use NSMD (non-solder mask defined) pads and 100% via-in-pad fill for thermal dissipation on production boards.
Do not float the TEST pin - tie it directly to VSS via 10 kohm to disable factory test mode. Leave unused NC pins floating or tied to VSS per NXP guidance. The MODC pin selects normal single-chip vs special mode - leave it floating for normal single-chip operation. Never hot-plug the BKGD pin while VDD is rising, or you may inadvertently enter active background debug mode.
Thông tin tuân thủ
Automotive temperature grade (-40C to +125C) per Partstack product data. AEC-Q100 qualification per NXP MC9S12D-Family documentation. RoHS/REACH status not directly stated in verified web data - marked unknown pending manufacturer datasheet verification.