NXP Semiconductors S912XEQ512F1CAGR

Overview

S912XEQ512F1CAGR from NXP Semiconductors (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 512 KB on-chip Flash memory with ECC, 32 KB RAM, and integrated MSCAN, XGATE co-processor, and enhanced ATD. It delivers full CAN performance in body control modules and gateway applications with -40°C to 125°C operation and 50 MHz bus frequency.

For engineers reviewing the S912XEQ512F1CAGR datasheet, S912XEQ512F1CAGR pinout, S912XEQ512F1CAGR application, or S912XEQ512F1CAGR equivalent, key selection criteria include Flash ECC support, XGATE offloading capability for CAN/LIN, 144-pin LQFP package compatibility, and automotive AEC-Q100 qualification status.

Technical Context

The S912XEQ512F1CAGR implements the CPU12X 16-bit core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), supports up to 50 MHz bus frequency, and integrates an enhanced XGATE co-processor running at 100 MIPS with dedicated interrupt handling for peripheral offload. Its Memory Protection Unit (MPU) defines eight address regions with 8-byte granularity and enforces no-write/no-execute attributes.

It features dual ATD converters (8/10/12-bit, 16-channel multiplexer, 3 µs 10-bit conversion time), four MSCAN modules (CAN 2.0A/B compliant, up to 1 Mbps, FIFO-based receive buffers), and a Frequency Modulated PLL (IPLL) with spread-spectrum capability for EMC reduction - all operating across -40°C to 125°C ambient range.

Key Specifications

Pinout & Package

144-pin LQFP (20 × 20 mm, 0.5 mm pitch), case number 918-03. Non-multiplexed external bus interface available. Pin functions validated per MC9S12XE Data Sheet Rev. 7 and S912XEQ512F1CAGR-specific pin assignment table.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S912XEQ512F1CAGR, MC9S12XEP100MAG offers greater memory and I/O scalability but requires PCB redesign for MAPBGA; S912XEQ384F1CAGR shares pinout and peripherals but trades Flash capacity for lower BOM cost in less feature-rich systems.

Availability

S912XEQ512F1CAGR is available at Aetrix Electronics and suitable for automotive body control, gateway, chassis domain, and advanced lighting applications requiring stable component supply, long-term lifecycle support, and AEC-Q100–qualified silicon.

Supply support for S912XEQ512F1CAGR 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 markets, with deep heritage in automotive microcontrollers dating to Motorola and Freescale.

The S912XEQ512F1CAGR belongs to the MC9S12XE family, designed specifically for automotive body electronics and gateway systems demanding enhanced system integrity via MPU, ECC Flash, and XGATE offload capabilities.

FAQ

What is the maximum bus frequency supported by the S912XEQ512F1CAGR?

The S912XEQ512F1CAGR supports a maximum CPU bus frequency of 50 MHz. Its XGATE co-processor operates at 100 MHz, enabling high-throughput peripheral servicing without CPU wait states. This timing is guaranteed across the full -40°C to 125°C operating range and under specified voltage conditions (3.3 V ±5%/+10% to 5.0 V +10%). The S912XEQ512F1CAGR achieves this using its integrated IPLL with frequency modulation and internal filtering, eliminating need for external components.

Does the S912XEQ512F1CAGR include Error Correction Code (ECC) for Flash memory?

Yes, the S912XEQ512F1CAGR includes full ECC protection on its 512 KB Flash memory. Each 64-bit word is augmented with 8 syndrome bits, enabling single-bit error correction and double-bit error detection during read and write operations. This ECC implementation is hardware-accelerated and transparent to software, directly supporting ISO 26262 ASIL-B compliance requirements for automotive safety-critical firmware storage in the S912XEQ512F1CAGR.

How many CAN modules does the S912XEQ512F1CAGR integrate, and what protocol versions are supported?

The S912XEQ512F1CAGR integrates four independent MSCAN modules, supporting CAN 2.0A and CAN 2.0B protocols with software compatibility. Each module supports standard and extended identifier frames, programmable bit rates up to 1 Mbps, and hardware FIFO receive buffers. When used with the XGATE co-processor, the S912XEQ512F1CAGR achieves FULL-CAN functionality - including mailbox-based message handling and zero-CPU-overhead transmission scheduling - confirmed in Freescale's MC9S12XE Family Product Brief Rev. 9.

What package type and pin count does the S912XEQ512F1CAGR use?

The S912XEQ512F1CAGR uses a 144-pin LQFP package with 20 mm × 20 mm body size and 0.5 mm pitch (case number 918-03). It supports the non-multiplexed external bus interface, enabling glue-less connection to asynchronous SRAM and Flash devices. This package is pin-compatible with other S12XE derivatives in the same footprint, including S912XEQ384F1CAGR and S912XET256F1CAGR, allowing scalable design reuse across product tiers.

Is the S912XEQ512F1CAGR qualified for automotive applications, and what temperature grade is specified?

Yes, the S912XEQ512F1CAGR is AEC-Q100 qualified for automotive use and specified for operation across -40°C to 125°C ambient temperature (Grade 0). This qualification covers thermal cycling, humidity testing, and ESD robustness per AEC standards. The device includes on-chip low-voltage detection, power-on reset, and clock monitor circuits to ensure reliable startup and runtime behavior in harsh automotive environments - critical for body control and gateway functions where the S912XEQ512F1CAGR is deployed.