NXP Semiconductors XC912BC32CFUE8

Overview

XC912BC32CFUE8 from Freescale Semiconductor is a 16-bit HCS12 microcontroller featuring 32 KB on-chip FLASH EEPROM, 1 KB RAM, and integrated CAN 2.0A/B controller (msCAN12), operating at up to 25 MHz CPU clock with 5.0 V supply. It includes 10-bit ATD converter (8-channel), PWM module (8 channels), and enhanced capture timer (ECT) for motor control and industrial automation.

For engineers reviewing the XC912BC32CFUE8 datasheet, XC912BC32CFUE8 pinout, XC912BC32CFUE8 application, or XC912BC32CFUE8 equivalent, key selection criteria include CAN interface support, FLASH endurance (10k program/erase cycles), EEPROM emulation capability, and QFP-80 package compatibility with automotive-grade temperature range (–40°C to +125°C).

Technical Context

The XC912BC32CFUE8 implements the M68HC12B core with full instruction set compatibility to MC68HC11, supporting single-chip, expanded narrow/wide, and background debug modes. Its CGM provides flexible clock sourcing via crystal (1–8 MHz), external clock, or internal RC oscillator with programmable prescalers.

Memory subsystem includes 32 KB FLASH (organized in 512-byte blocks), 1 KB SRAM, and optional 512-byte EEPROM emulation using FLASH. The msCAN12 module supports bit rates up to 1 Mbps, message buffering, and automatic retransmission with error confinement.

Key Specifications

Pinout & Package

XC912BC32CFUE8 is housed in an 80-pin Quad Flat Package (QFP) with 0.65 mm lead pitch, JEDEC MS-026 standard footprint, and thermal pad for enhanced power dissipation in high-reliability applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC912BC32CFUE8, MC9S12XDP512MALR delivers 3× more FLASH and co-processor acceleration at higher power and cost, while S912XEQ512J2MALR offers CAN FD readiness but lacks direct msCAN12 compatibility-making XC912BC32CFUE8 optimal for cost-sensitive, CAN 2.0–focused automotive modules.

Availability

XC912BC32CFUE8 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, heavy-duty vehicle telematics, and off-highway equipment monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for XC912BC32CFUE8 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

Freescale Semiconductor (now part of NXP Semiconductors since 2015) pioneered automotive and industrial microcontrollers, emphasizing robustness, CAN integration, and long-term supply assurance.

The M68HC12B family-including XC912BC32CFUE8-was engineered for deterministic real-time control in harsh environments, targeting automotive powertrain, chassis, and body electronics where reliability and CAN interoperability are critical.

FAQ

What is the maximum operating frequency of the XC912BC32CFUE8?

The XC912BC32CFUE8 supports a maximum CPU bus frequency of 25 MHz, achieved via internal PLL multiplication of an external 4–8 MHz crystal or clock source. This frequency is guaranteed across the full –40°C to +125°C temperature range and 4.5–5.5 V supply, enabling deterministic real-time response for safety-critical automotive functions.

Does the XC912BC32CFUE8 include built-in EEPROM memory?

No, the XC912BC32CFUE8 does not contain dedicated EEPROM silicon. However, it supports EEPROM emulation using a protected region of its 32 KB on-chip FLASH memory, managed by Freescale's AN2221 application note routines-providing 512 bytes of byte-alterable nonvolatile storage with 100,000 write cycles.

Can the XC912BC32CFUE8 be programmed in-circuit without removing it from the board?

Yes, the XC912BC32CFUE8 supports in-circuit programming via its Background Debug Mode (BDM) interface using the BKGD pin. With a compatible BDM pod (e.g., P&E Micro USB-ML-12), users can erase, program, and verify FLASH and EEPROM emulation areas directly on the target board-no socket or UV eraser required.

What development tools are officially supported for the XC912BC32CFUE8?

Freescale officially supports CodeWarrior Development Studio for HC12 (v5.x), P&E Micro's PROG12Z programmer, and the DEMO912B32 evaluation board. These tools provide full debug visibility, FLASH programming, and peripheral initialization wizards specifically validated for the XC912BC32CFUE8 and its M68HC12B core.

Is the XC912BC32CFUE8 pin-compatible with other members of the M68HC12B family?

The XC912BC32CFUE8 shares the same 80-pin QFP package and core pinout as the MC68HC912B32 and MC68HC912BD32, but differs in peripheral enablement: only XC912BC32CFUE8 includes the msCAN12 module enabled and routed to CANH/CANL pins-other variants may omit or disable this function in silicon.