NXP Semiconductors S9S12P96J0MQK
- Part No.:
- S9S12P96J0MQK
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S9S12P96J0MQK.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80QFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S9S12P96J0MQK from NXP Semiconductors (formerly Freescale) is a 16-bit automotive-grade microcontroller based on the S12 CPU12 core, featuring 96 KB on-chip Flash with ECC, 4 KB SRAM, and integrated CAN 2.0B controller. It operates at up to 25 MHz bus frequency, supports 5V I/O, and includes 10-bit ADC (8-channel), 8-channel PWM, and background debug interface (BDM). It is used in engine control units, body electronics, and transmission control modules.
For engineers reviewing the S9S12P96J0MQK datasheet, S9S12P96J0MQK pinout, S9S12P96J0MQK application, or S9S12P96J0MQK equivalent, this page delivers verified technical context, package mapping, functional pin roles, real-world use cases, and validated alternative options for automotive embedded design and ECU replacement programs.
Technical Context
The S9S12P96J0MQK implements the S12 CPU12 instruction set with 16-bit data/24-bit address bus, supporting single-cycle 16-bit multiply and 32-bit divide. Its memory subsystem includes 96 KB Flash (with error correction), 4 KB RAM, and configurable memory mapping via the P-Module (S12PMMCV1).
Peripherals include an MSCAN v3 module compliant with ISO 11898-1, 10-bit ADC12B10C with external trigger support, PWM8B6CV1 with center-aligned and edge-aligned modes, and dual serial interfaces (SCI v5 and SPI v5). Clock management is handled by S12CPMU with internal RC oscillator, external crystal input, and PLL-based frequency multiplication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 CPU12 16-bit CISC core with 24-bit addressing and 16-bit ALU |
| Flash Memory | 96 KB on-chip Flash with ECC - enables robust firmware storage and field updates in harsh environments |
| RAM | 4 KB on-chip SRAM - sufficient for real-time task stacks, CAN message buffers, and ADC data buffering |
| Max Bus Frequency | 25 MHz - determines maximum instruction throughput and peripheral timing margins |
| ADC Resolution & Channels | 10-bit, 8-channel ADC12B10C - supports analog sensor inputs including throttle position, coolant temperature, and oxygen sensors |
| CAN Interface | One MSCAN v3 module, ISO 11898-1 compliant - provides fault-tolerant, deterministic communication for powertrain networks |
| I/O Voltage | 5V-tolerant digital I/O - compatible with legacy automotive sensor and actuator interfaces without level-shifting |
Pinout & Package
Package: 80-pin Quad Flat Package (QFP), lead-free, RoHS-compliant, 14 × 14 mm body size (MQK suffix per Appendix C of S12P-Family Reference Manual, Rev. 1.13).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Dedicated domains for digital logic (VDD), analog circuitry (VDDA), and PLL (VDDPLL) - enable noise isolation critical for ADC and CAN stability |
| VSS, VSSA, VSSPLL | Ground returns | Separate ground planes minimize coupling between digital switching noise and sensitive analog/PLL circuits |
| XTAL, EXTAL | Main external oscillator inputs | Supports 4–8 MHz crystal or ceramic resonator - primary clock source for system timing and CAN bit rate derivation |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - ensures reliable initialization after power-on or brownout |
| PORTA[7:0] | General-purpose I/O port | 8-bit bidirectional port with programmable pull-ups and reduced drive strength - used for discrete I/O, LED indicators, or switch inputs |
| PORTB[7:0] | General-purpose I/O port | 8-bit bidirectional port with interrupt capability on individual pins - supports wake-up from stop mode via external events |
| CANRX, CANTX | CAN transceiver interface | Differential CAN physical layer signals - directly connect to external CAN transceiver (e.g., MC33883 or TJA1042) |
| AD0–AD7 | ADC analog input channels | Eight dedicated analog inputs with shared reference (VREFH/VREFL) - routed to internal ADC12B10C for sensor signal acquisition |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with ECC | 96 KB Flash with single-bit error correction/detection - prevents silent corruption in safety-critical ECU firmware |
| Background Debug Module (BDM) | Single-wire BDM interface (BKGD pin) - enables non-intrusive flash programming and real-time debugging without halting CAN traffic |
| MSCAN v3 Controller | Full CAN 2.0B protocol handling with 16-message object buffers - supports prioritized message transmission and hardware filtering |
| Programmable Clock Generation | S12CPMU with IRC, XOSC, and IPLL - allows dynamic clock scaling and low-power stop/wake modes while maintaining CAN synchronization |
| System Integrity Support | COP watchdog timer, clock monitor, and reset status registers - meets ASIL-B readiness requirements for automotive functional safety |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring and actuation of fuel injection, ignition timing, and air-fuel ratio using sensor feedback. IC Role / Device Role / Timing Role: Primary controller executing closed-loop control algorithms with deterministic response under 100 µs latency. Use Value: Integrated 10-bit ADC, PWM outputs, and CAN interface eliminate need for external signal conditioning and communication ICs. |
Use Scenario: Centralized management of lighting, door locks, window lifts, and HVAC functions across vehicle zones. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves and relays via GPIO and PWM-driven motor drivers. Use Value: 5V-tolerant I/O simplifies integration with legacy 5V actuators; BDM enables in-vehicle firmware updates. |
| Transmission Control Module (TCM) | Advanced Driver Assistance Systems (ADAS) Sensor Interface |
Use Scenario: Gear selection logic, torque converter clutch control, and shift solenoid actuation based on vehicle speed and throttle position. IC Role / Device Role / Timing Role: Safety-aware controller with COP watchdog and reset supervision for fail-safe gear hold-down behavior. Use Value: ECC Flash and system integrity features meet ISO 26262 ASIL-B requirements for transmission software. |
Use Scenario: Signal preprocessing and CAN message formatting for radar or camera proximity sensors before forwarding to central ADAS ECU. IC Role / Device Role / Timing Role: Edge node performing analog front-end digitization and time-stamped event reporting over CAN. Use Value: Hardware-triggered ADC sampling synchronized to external sensor strobes reduces jitter in distance measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12P128J0MQK | 128 KB Flash, same package and pinout - adds 32 KB code space for larger control algorithms or bootloader + application separation | Preferred where future firmware expansion or dual-bank OTA updates are required | Select when additional Flash headroom justifies cost premium and layout reuse is critical |
| S912XDP512J1MAL | Enhanced S12X core, 512 KB Flash, 32 KB RAM, enhanced CAN FD support - not pin-compatible; requires PCB redesign | Targeted at next-generation ECUs needing higher performance, CAN FD, or expanded memory for diagnostics | Choose for new designs requiring CAN FD or >100 MHz effective throughput; not suitable for drop-in replacement |
Compared with MC9S12P128J0MQK, S9S12P96J0MQK trades 32 KB Flash for lower cost and smaller footprint in mature ECU platforms; versus S912XDP512J1MAL, it offers proven qualification and simpler toolchain support but lacks CAN FD and advanced debugging features.
Availability
S9S12P96J0MQK is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control systems requiring stable component supply across extended automotive production lifecycles.
Supply support for S9S12P96J0MQK includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in automotive microcontrollers.
The S12P family, including S9S12P96J0MQK, was designed specifically for cost-sensitive, high-reliability automotive powertrain and chassis control applications requiring long-term availability and AEC-Q100 qualification.
FAQ
What is the maximum operating frequency of the S9S12P96J0MQK?
The S9S12P96J0MQK supports a maximum bus frequency of 25 MHz, derived from its internal PLL operating off either the 4–8 MHz external crystal or internal RC oscillator. This frequency governs instruction execution speed, peripheral timing, and CAN bit rate generation. The CPU12 core executes most instructions in 1–3 bus cycles, enabling deterministic real-time control loops within strict automotive timing budgets.
Does the S9S12P96J0MQK support CAN FD?
No, the S9S12P96J0MQK integrates the MSCAN v3 module, which implements only Classical CAN (ISO 11898-1, CAN 2.0B) with up to 1 Mbps data rate. It does not support CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD, designers must consider newer families like S12Z or S32K.
Is the S9S12P96J0MQK AEC-Q100 qualified?
Yes, the S9S12P96J0MQK is qualified to AEC-Q100 Grade 2 (−40°C to +105°C ambient), with full automotive qualification testing including HTOL, TC, HAST, and ESD. This qualification is documented in NXP's official automotive reliability reports and applies to the MQK (80-pin QFP) package variant.
What debug interface does the S9S12P96J0MQK provide?
The S9S12P96J0MQK uses the Background Debug Module (BDM) interface via the BKGD pin, supporting single-wire serial communication for flash programming, register inspection, and breakpoint-based debugging. It does not support JTAG or SWD. Standard tools like P&E Micro's Cyclone Pro or NXP's S12XDP starter kit are compatible with S9S12P96J0MQK BDM operation.
What is the purpose of the VDDA and VSSA pins on the S9S12P96J0MQK?
VDDA and VSSA are dedicated analog power and ground supplies for the on-chip 10-bit ADC12B10C module. Separating analog and digital domains minimizes noise coupling from digital switching into ADC conversion results. These pins must be decoupled with low-ESR capacitors near the package and routed on isolated PCB planes to achieve specified 10-bit accuracy and SNR performance.
S9S12P96J0MQK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CANbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 64
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.72V ~ 5.5V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12P96J0MQK FAQ
1.How can I place an order for S9S12P96J0MQK through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12P96J0MQK on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of S9S12P96J0MQK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12P96J0MQK is usually 5 days.
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Once your S9S12P96J0MQK order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S9S12P96J0MQK?
For technical support, including S9S12P96J0MQK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12P96J0MQK requirements.
6.How does Aetrix verify that S9S12P96J0MQK is sourced from the original manufacturer or authorized distributors?
All S9S12P96J0MQK products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S9S12P96J0MQK meets industry standards.
7.What is the process for return or replacement of S9S12P96J0MQK?
All S9S12P96J0MQK units undergo pre-shipment inspection (PSI). If there is an issue with S9S12P96J0MQK, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S9S12P96J0MQK part is unused and in its original packaging.
Return procedure for S9S12P96J0MQK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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