NXP Semiconductors S912XEQ512BVAA

Overview

S912XEQ512BVAA 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 deterministic real-time control for body electronics modules operating at up to 50 MHz bus frequency in -40°C to 125°C ambient.

For engineers reviewing the S912XEQ512BVAA datasheet, S912XEQ512BVAA pinout, S912XEQ512BVAA application, or S912XEQ512BVAA equivalent, this page provides verified technical context, package mapping, functional alternatives, and automotive-grade supply assurance - all grounded in the MC9S12XEPB Rev. 9 product brief and official derivative tables.

Technical Context

The S912XEQ512BVAA implements the CPU12X instruction set (excluding five fuzzy instructions), supports Supervisor/User mode operation via MPU, and integrates ECC-capable Flash with 1-bit correction/2-bit detection. Its XGATE co-processor runs at 100 MIPS, handles full CAN messaging independently of the CPU, and services all peripherals without wait states.

This derivative includes four MSCAN modules, six SCI interfaces, three SPI modules, two IIC modules, and an 8-channel 10-bit ATD converter. It uses a non-multiplexed external bus interface only in 144-pin LQFP packages and operates across 3.3 V–5.0 V supply with EMC-optimized dual-voltage regulation.

Key Specifications

Pinout & Package

144-pin LQFP package (case no 918-03), 20 mm × 20 mm body, 0.5 mm pitch, exposed thermal pad. Pinout validated per MC9S12XE Family Data Sheet "Port Availability by Package Option" table for 144LQFP variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S912XEQ512BVAA, the S912XEP100BVAA offers double Flash capacity and an extra CAN interface in a larger 208-pin package, while the S912XET256JVP reduces memory and CAN count for lower-cost nodes - both retain identical XGATE, MPU, and ATD functionality for seamless software porting within the S12XE family.

Availability

S912XEQ512BVAA is available at Aetrix Electronics and suitable for automotive body control, vehicle gateway, smart lighting, occupancy sensing, and LIN/CAN bridge applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S912XEQ512BVAA 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 MCUs dating to the Motorola 68HC11.

The S912XEQ512BVAA belongs to the S12XE family - designed specifically for ASIL-B–capable automotive body electronics and gateway functions, emphasizing system integrity via MPU, ECC Flash, and XGATE offload to reduce CPU interrupt latency.

FAQ

What is the maximum bus frequency supported by the S912XEQ512BVAA?

The S912XEQ512BVAA supports a maximum CPU bus frequency of 50 MHz, enabling deterministic real-time execution for automotive control loops. This frequency is sustained across its full operating voltage range (3.3 V–5.0 V) and temperature range (-40°C to 125°C), as confirmed in Section 3.3.1 of the MC9S12XEPB Rev. 9 product brief. The XGATE co-processor operates at up to 100 MHz independently.

Does the S912XEQ512BVAA include Error Correction Code (ECC) for Flash memory?

Yes, the S912XEQ512BVAA includes ECC protection on its 512 KB Flash memory, with 64 data bits plus 8 syndrome bits per word. This provides single-bit error correction and double-bit error detection during read/write operations - a key feature for ASIL-B compliance in automotive applications, as documented in Section 3.4 and 3.5.6 of the MC9S12XEPB Rev. 9 product brief.

How many CAN modules does the S912XEQ512BVAA integrate?

The S912XEQ512BVAA integrates four MSCAN modules (CAN0–CAN3), as specified in Table 1 of the MC9S12XEPB Rev. 9 product brief under the "9S12XEQ512" row for the 144LQFP package. These modules support CAN 2.0A/B, programmable bit rates up to 1 Mbps, and FULL-CAN capability when used with the XGATE co-processor.

What package type and pin count does the S912XEQ512BVAA use?

The S912XEQ512BVAA uses a 144-pin LQFP package (20 mm × 20 mm body, 0.5 mm pitch, case number 918-03), as confirmed in Section 3.3.2 and Table 1 of the MC9S12XEPB Rev. 9 product brief. This package supports the non-multiplexed external bus interface and is pin-compatible with other 144LQFP S12XE derivatives like the S912XEP100BVAA.

Is the XGATE co-processor on the S912XEQ512BVAA programmable in C language?

Yes, the XGATE co-processor on the S912XEQ512BVAA is fully programmable in C language, as stated in the Introduction and Section 3.5.3 of the MC9S12XEPB Rev. 9 product brief. It delivers up to 100 MIPS performance, handles data movement and bit manipulation without CPU intervention, and services all peripherals - including MSCAN, SCI, and SPI - to reduce main CPU load in automotive communication tasks.