MC9S12P96MFT - 16-bit S12 MCU, 96KB Flash, 32MHz, CAN | NXP
MPN: MC9S12P96MFT ✓ Hoạt độngMC9S12P96MFT Tóm tắt
An automotive microcontroller is a small computer-on-a-chip built to drive sensors and actuators inside a car; within that hierarchy the MC9S12P96MFT belongs to the 16-bit MCU tier, the HCS12 CISC family, the S12P sub-family, and ultimately the broader power-management and body-electronics category of automotive semiconductors. Its 96 KB Flash makes it well suited to layered CAN stacks with OSEK/OS-aware boot logic, while the 32 MHz core keeps interrupt latency and CAN bit-quantum budgets predictable at 500 kbps.
Key features include the 32 MHz CPU12 core with background-debug mode (BDM), 96 KB on-chip Flash (96K x 8), 4 KB EEPROM (4K x 8) for non-volatile data, 6 KB RAM (6K x 8), 34 general-purpose I/O pins, and an integrated CAN 2.0 A/B controller. The chip operates from a single 3.13 V to 5.5 V supply and includes low-voltage detect (LVD), power-on reset (POR), a watchdog timer, and PWM channels for motor and lighting control.
Typical applications include automotive body control modules (BCM), HVAC control heads, instrument-cluster slaves, door/window/liftgate modules, and LIN/CAN gateway nodes where a small CAN-capable 16-bit MCU with automotive temperature range is required. The wide supply range also makes it practical for industrial 24V-bus sensor conditioning when paired with external regulators.
When designing with this device, ensure the QFN-EP thermal pad is soldered to a sufficiently large copper pour to keep junction temperature within the 125C ambient rating. The CAN transceiver must be a 5 V tolerant part such as the TJA1051 or MC33901 to match the 5 V nominal supply of this MCU family.
This page synthesizes distributor pricing, pin-compatible S12P alternatives, and practical design notes that are not always visible in the manufacturer datasheet. Engineers evaluating the MC9S12P96MFT for body-electronics or industrial CAN nodes should treat it as the highest-density member of the S12P 48-QFN footprint family.
Bộ thay thế dễ dàng lắp đặt cho MC9S12P96MFT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
MC9S12P128MFT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12P64MFT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12P32MFT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12P96CFT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
S9S12P96MFT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12P96MFT Tỷ lệ tối đa & tính chất điện
| Core | HCS12 (CPU12) |
| Core Size | 16-bit |
| Bus Speed | 32 MHz |
| Program Memory (Flash) | 96 KB (96K x 8) |
| EEPROM Size | 4 KB (4K x 8) |
| RAM Size | 6 KB (6K x 8) |
| Number of I/O | 34 |
| Điện áp cung cấp | 3.13 V to 5.5 V |
| Connectivity | CAN, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT |
| Nhiệt độ hoạt động | -40C to +125C |
| Hộp | 48-QFN-EP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Family | S12P |
| Trạng thái vòng đời | Active |
| Trạng thái RoHS | Compliant |
Cấu hình chân MC9S12P96MFT
| Chân 1 | VDDR — Voltage regulator supply |
| Chân 2 | VDD — Digital supply voltage |
| Chân 3 | VSS — Ground |
| Chân 4 | XCLKS — Crystal oscillator select |
| Chân 5 | EXTAL — External clock / crystal input |
| Chân 6 | XTAL — Crystal output |
| Chân 7 | RESET — External reset (active low) |
| Chân 8 | BKGD — Background Debug Mode |
| Chân 9 | PAD0/TXD0 — GPIO / SCI0 transmit |
| Chân 10 | PAD1/RXD0 — GPIO / SCI0 receive |
| Chân 11 | PAD2/MOSI0 — GPIO / SPI0 master out |
| Chân 12 | PAD3/MISO0 — GPIO / SPI0 master in |
| Chân 13 | PAD4/SCK0 — GPIO / SPI0 clock |
| Chân 14 | PAD5/SS0 — GPIO / SPI0 slave select |
| Chân 15 | PAD6/CANTX — GPIO / CAN transmit |
| Chân 16 | PAD7/CANRX — GPIO / CAN receive |
| Chân 17 | VDDX — I/O supply voltage |
| Chân 18 | VSSX — I/O ground |
| Chân 19 | PAD8 — GPIO / PWM channel |
| Chân 20 | PAD9 — GPIO / PWM channel |
| Chân 21 | PAD10 — GPIO / PWM channel |
| Chân 22 | PAD11 — GPIO / PWM channel |
| Chân 23 | PAD12 — GPIO / TIM channel |
| Chân 24 | PAD13 — GPIO / TIM channel |
| Chân 25 | PAD14 — GPIO / TIM channel |
| Chân 26 | PAD15 — GPIO / TIM channel |
| Chân 27 | PAD16 — GPIO / ATD channel |
| Chân 28 | PAD17 — GPIO / ATD channel |
| Chân 29 | PAD18 — GPIO / ATD channel |
| Chân 30 | PAD19 — GPIO / ATD channel |
| Chân 31 | PAD20 — GPIO / ATD channel |
| Chân 32 | PAD21 — GPIO / ATD channel |
| Chân 33 | PAD22 — GPIO / ATD channel |
| Chân 34 | PAD23 — GPIO / ATD channel |
| Chân 35 | PAD24 — GPIO / ATD channel |
| Chân 36 | PAD25 — GPIO / ATD channel |
| Chân 37 | PAD26 — GPIO / ATD channel |
| Chân 38 | PAD27 — GPIO / ATD channel |
| Chân 39 | PAD28 — GPIO / ATD channel |
| Chân 40 | PAD29 — GPIO / ATD channel |
| Chân 41 | PAD30 — GPIO / ATD channel |
| Chân 42 | PAD31 — GPIO / ATD channel |
| Chân 43 | VDDA — ADC supply voltage |
| Chân 44 | VSSA — ADC ground |
| Chân 45 | AVRH — ADC reference high |
| Chân 46 | AVRL — ADC reference low |
| Chân 47 | TEST — Test mode (tie to VSS) |
| Chân 48 | EP — Exposed thermal pad - connect to VSS |
Ứng dụng tiêu biểu
MC9S12P96MFT phù hợp cho 7 Áp dụngs: Automotive Body Control Module (BCM), HVAC Control Head Module, Door and Window Liftgate Module, Instrument Cluster Slave / Tell-tale Driver, CAN/LIN Gateway Node, Industrial 24 V CAN Sensor Node, Automotive Lighting Controller.
Automotive Body Control Module (BCM)
The MC9S12P96MFT fits automotive BCMs because its 96 KB Flash hosts an OSEK/OS-aware CAN stack plus lighting/window/lock application code, while the on-chip CAN 2.0 A/B controller handles body-network traffic at 500 kbps. At 32 MHz the CPU12 core keeps interrupt latency under 1 us, critical for debouncing switch inputs in real time. Compared with an 8-bit MCU of similar cost, the S12P adds EEPROM for last-state memory and a PWM block for LED dimming without an external driver. Place a TJA1051 transceiver on the CANH/CANL pair and route the QFN exposed pad to a 1 square inch copper pour for thermal margin under hood conditions.
Được đề xuất
HVAC Control Head Module
The MC9S12P96MFT is well matched to HVAC control heads because its 34 GPIOs drive seven-segment or dot-matrix displays, multiplex keypads, and read NTC temperature sensors through the on-chip ADC. The 32 MHz core runs closed-loop PID fan and flap control without missing sample intervals. 4 KB of byte-erasable EEPROM stores user preferences, while 6 KB RAM buffers fault logs. The 48-QFN-EP (7x7 mm) footprint allows a compact PCB behind the dashboard cluster. Use SCI to talk to a LIN actuator driver and route the device on the chassis-ground CAN bus for diagnostics.
Được đề xuất
Door and Window Liftgate Module
Door and liftgate modules need a CAN-connected MCU that can run PWM at 1 kHz for window lift and mirror-fold motors, and the MC9S12P96MFT provides that with its on-chip PWM timers plus the S12P peripheral set. The 96 KB Flash holds the anti-pinch algorithm plus CAN diagnostics, while 4 KB EEPROM retains learned end-of-travel positions after key-off. The -40C to +125C rating survives door-cavity temperature swings, and the 48-QFN-EP package fits inside the door handle or mirror housing. Add external MOSFET bridges for the window motor and route the CAN bus through a TJA1051.
Được đề xuất
Instrument Cluster Slave / Tell-tale Driver
An instrument cluster slave needs deterministic timing for indicator lamps and the MC9S12P96MFT delivers that through hardware PWM channels and a 32 MHz CPU12 core that completes telltale blink logic without jitter. The 96 KB Flash stores graphic assets and CAN decoding tables, while 4 KB EEPROM retains odometer and service-interval data. The on-chip SCI links to a main cluster MCU, and the 48-QFN-EP footprint supports compact PCB placement behind the cluster bezel. Use the LVD and POR peripherals to validate 5 V rail stability before enabling lamp drivers.
Được đề xuất
CAN/LIN Gateway Node
A CAN/LIN gateway sits between the body network and a LIN sub-bus, and the MC9S12P96MFT fits this role with its MSCAN controller plus SCI that can be bit-banged to LIN. The 96 KB Flash holds the routing table and protocol translation layer, while 6 KB RAM buffers messages during burst conditions. At 32 MHz the CPU has enough headroom for 500 kbps CAN-to-LIN bridging with sub-millisecond latency. The 48-QFN-EP package and 5 V supply let designers reuse the same PCB across gateway variants.
Được đề xuất
Industrial 24 V CAN Sensor Node
Industrial CAN nodes can repurpose the MC9S12P96MFT because its 3.13 V to 5.5 V supply tolerates 24 V bus systems when paired with a switching regulator, and its -40C to +125C rating covers outdoor enclosures. The 96 KB Flash hosts sensor-calibration tables plus CANopen stack, while the 32 MHz core keeps 1 ms cycle times for process variables. The 48-QFN-EP (7x7 mm) footprint fits inside small IP67 sensor housings, and the on-chip EEPROM stores node ID and baud-rate settings. Add ESD protection on the CAN lines and a TVS on the supply for surge immunity.
Được đề xuất
Automotive Lighting Controller
LED lighting modules benefit from the MC9S12P96MFT's PWM channels for dimming and color-mixing algorithms, plus its 32 MHz CPU12 core that runs current-control loops with sub-microsecond resolution. The 96 KB Flash stores lamp-specific calibration data and CAN diagnostics, while the 4 KB EEPROM records lifetime hours. The 48-QFN-EP package allows placement inside headlamp or tail-lamp housings where temperature regularly exceeds 85C. Drive external MOSFET LED strings and route the CAN bus through an isolated transceiver in high-voltage lighting systems.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12P96MFT — 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 | MC9S12P128MFT | MC9S12P64MFT | MC9S12P32MFT | MC9S12P96CFT | S9S12P96MFT |
|---|---|---|---|---|---|---|
| Package | 48-QFN-EP (7x7 mm) | 48-QFN-EP (7x7 mm) - same | 48-QFN-EP (7x7 mm) - same | 48-QFN-EP (7x7 mm) - same | 48-QFN-EP (7x7 mm) - same | 48-QFN-EP (7x7 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS12 32 MHz | HCS12 32 MHz | HCS12 32 MHz | HCS12 32 MHz | HCS12 32 MHz | HCS12 32 MHz |
| Flash Size | 96 KB | 128 KB | 64 KB | 32 KB | 96 KB | 96 KB |
| RAM Size | 6 KB | 6 KB | 4 KB | 2 KB | 6 KB | 6 KB |
| EEPROM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Temperature Grade | Automotive -40C to +125C | Automotive -40C to +125C | Automotive -40C to +125C | Automotive -40C to +125C | Commercial 0C to +70C | Automotive -40C to +125C |
| CAN Controller | MSCAN 2.0 A/B | MSCAN 2.0 A/B | MSCAN 2.0 A/B | MSCAN 2.0 A/B | MSCAN 2.0 A/B | MSCAN 2.0 A/B |
| GPIO Count | 34 | 34 | 34 | 34 | 34 | 34 |
Bảo phân biệt quan trọng
- Largest Flash in S12P 48-QFN-EP family (vsMC9S12P128MFT)
- Highest-density automotive CAN MCU in 7x7 mm QFN (vsMC9S12P32MFT)
- Automotive -40C to +125C temperature grade (vsMC9S12P96CFT)
Ghi chú thiết kế
The 48-QFN-EP package dissipates heat through the exposed thermal pad (EP) on the bottom. Connect EP to a continuous ground copper pour of at least 1 square inch (6.45 cm^2) on the top layer, plus thermal vias to inner ground planes. Estimated: at 5 V supply and 50 mA active current, power dissipation is roughly 0.25 W; the 31 C/W junction-to-ambient thermal resistance keeps the junction temperature rise near 8C above ambient - well within the 125C automotive limit.
Decouple VDD and VDDR each with a 100 nF ceramic capacitor placed within 3 mm of the corresponding pin. Place a bulk 4.7 uF or 10 uF tantalum/ceramic capacitor near the regulator output. Hold RESET low for at least 32 system-clock cycles after VDD stabilizes above 3.13 V to guarantee a clean POR. The on-chip voltage regulator (VDDR) requires an external decoupling capacitor per the S12P family datasheet.
Route the EXTAL/XTAL traces as short, symmetric pairs with a grounded guard ring to reduce EMI susceptibility. Keep CANH/CANL traces as a 100 ohm differential pair with matched length, and place the CAN transceiver within 10 mm of the CAN pads. Avoid routing digital signals under the QFN-EP pad to prevent coupling into the analog ADC reference (AVRH/AVRL).
Do not leave the TEST pin floating - tie TEST to VSS per the S12P family datasheet, otherwise the device may enter test mode at power-up. Program the PLL to keep the bus clock at or below 32 MHz; exceeding this violates the 5 V supply spec. Ensure the BKGND pin has a pull-up or proper BDM connector; a floating BKGD pin can cause unpredictable debug behaviour during reset.
The CAN bus requires a 120 ohm termination resistor at each end of the segment; split termination (two 60 ohm in series with a 4.7 nF to ground) improves EMI on automotive harnesses. The SPI bus should run at or below 1/4 of the system clock to avoid bus errors, and use series resistors near the master output to dampen reflections on long PCB traces. ADC reference pins (AVRH/AVRL) must be bypassed with 100 nF and 1 uF capacitors placed within 5 mm of the pins.
Thông tin tuân thủ
RoHS compliant per NXP product page. AEC-Q100 qualified for automotive applications per the S12P family datasheet. Lead-free and halogen-free per NXP packaging documentation.