NXP Semiconductors S9S12G64F0WLFR

Overview

S9S12G64F0WLFR from NXP Semiconductors is a 16-bit automotive-grade microcontroller featuring 64 KB on-chip Flash with ECC, 4 KB SRAM, and integrated CAN 2.0B controller. It operates at up to 25 MHz core frequency, supports -40°C to 125°C ambient temperature (Grade 0), and includes 10-bit ADC (8-channel), 8-bit DAC, PWM, and BDM debug interface. It targets engine control units and body electronics requiring functional safety support.

For engineers reviewing the S9S12G64F0WLFR datasheet, S9S12G64F0WLFR pinout, S9S12G64F0WLFR application, or S9S12G64F0WLFR equivalent, key selection criteria include AEC-Q100 Grade 0 qualification, 64 KB Flash with ECC, CAN 2.0B compliance, 10-bit ADC resolution, and 25 MHz maximum bus clock - all confirmed for this exact part number in MC9S12G Family Reference Manual Rev.1.28.

Technical Context

The S9S12G64F0WLFR implements the S12 CPU12 core with 16-bit data path and von Neumann architecture. Its memory subsystem includes 64 KB Flash organized in 1 KB sectors with error correction coding, 4 KB SRAM, and 1 KB EEPROM emulation via Flash. The device integrates a scalable CAN module (MSCAN) supporting bit rates up to 1 Mbps and full CAN 2.0B protocol compliance.

Peripheral integration includes a 10-bit, 8-channel successive-approximation ADC with configurable sample time and external trigger support; an 8-bit DAC with 5 V reference output; and a 16-bit timer module (TIM16B8CV3) with eight input-capture/output-compare channels. Clock generation uses internal RC oscillator (1 MHz), external crystal (1–32 MHz), and PLL for stable 25 MHz bus clock derivation.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with S9S12G64F0WLFR, the MC9S12G128F0VLHR offers double Flash capacity in identical packaging for long-term design flexibility, while the S9S12G48F0WLFR reduces non-recurring engineering cost by trimming Flash without altering hardware integration or thermal design.

Availability

S9S12G64F0WLFR is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control systems requiring stable component supply across automotive production lifecycles.

Supply support for S9S12G64F0WLFR 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MC9S12G family was designed specifically for cost-optimized, AEC-Q100-compliant automotive body and powertrain control applications, emphasizing robustness, integrated CAN, and long-lifecycle support.

FAQ

What is the maximum operating frequency of the S9S12G64F0WLFR?

The S9S12G64F0WLFR supports a maximum bus clock frequency of 25 MHz, derived from its internal PLL locked to either the internal RC oscillator (1 MHz) or an external crystal (1–32 MHz). This frequency governs instruction execution speed, peripheral timing, and CAN bit rate generation. All timing specifications in the MC9S12G Family Reference Manual Rev.1.28 assume operation at this rated bus clock, and the S9S12G64F0WLFR is validated for stable operation across its full -40°C to +125°C temperature range at 25 MHz.

Does the S9S12G64F0WLFR include built-in error correction for Flash memory?

Yes, the S9S12G64F0WLFR includes on-chip Flash memory with Error Correction Code (ECC) support, as documented in Chapter 1.3.2 and Appendix A of the MC9S12G Family Reference Manual Rev.1.28. This ECC implementation detects double-bit errors and corrects single-bit errors in real time during read operations, enhancing reliability for automotive safety-critical applications. The 64 KB Flash is organized into 1 KB sectors, each protected by dedicated ECC bits stored in associated spare memory locations.

Is the S9S12G64F0WLFR qualified for automotive use?

Yes, the S9S12G64F0WLFR is AEC-Q100 qualified to Grade 0, meaning it is certified for operation from -40°C to +125°C ambient temperature and meets rigorous stress test requirements for automotive under-hood and cabin applications. This qualification is explicitly stated in Appendix C ("Ordering and Shipping Information") and Appendix A ("Electrical Characteristics") of the MC9S12G Family Reference Manual Rev.1.28, and the "W" in the part number denotes the Grade 0 temperature option.

What debug interface does the S9S12G64F0WLFR support?

The S9S12G64F0WLFR supports the Background Debug Module (BDM) interface, a single-wire, asynchronous serial protocol defined in Chapter 7 of the MC9S12G Family Reference Manual Rev.1.28. BDM enables non-intrusive flash programming, real-time register and memory inspection, breakpoint insertion, and instruction tracing without requiring dedicated JTAG pins. It uses the BKGD pin (Pin 1) and shares no resources with user I/O, making it ideal for production programming and field diagnostics.

Which CAN protocol version is implemented in the S9S12G64F0WLFR?

The S9S12G64F0WLFR implements the Scalable Controller Area Network (MSCAN) module compliant with CAN 2.0B specification, supporting both standard (11-bit) and extended (29-bit) identifier frames, as confirmed in Chapter 18 of the MC9S12G Family Reference Manual Rev.1.28. It delivers full protocol handling including message buffering, acceptance filtering, automatic retransmission, and bus-off recovery - all without CPU intervention - enabling deterministic real-time communication in automotive networks.