NXP Semiconductors MC9S08AC60CFJE

Overview

MC9S08AC60CFJE from Freescale Semiconductor is an 8-bit HCS08 microcontroller featuring a 40-MHz CPU, 60 KB on-chip FLASH, 2 KB RAM, and integrated peripherals including dual SCI (LIN 2.0 compliant), SPI, I²C, 16-channel 10-bit ADC, and three 16-bit TPM modules. It operates at up to 20-MHz bus frequency and supports active background debugging for automotive body control modules.

For engineers reviewing the MC9S08AC60CFJE datasheet, MC9S08AC60CFJE pinout, MC9S08AC60CFJE application, or MC9S08AC60CFJE equivalent, key selection criteria include QFN-48 package compatibility, COP watchdog with independent 1 kHz clock source, LIN-capable SCI modules, FLASH security options, and CRC hardware acceleration for firmware integrity verification.

Technical Context

The MC9S08AC60CFJE implements the S08CPUV2 core with HC08 instruction set extension (BGND), supports up to 32 interrupt/reset sources, and integrates an Internal Clock Generator (ICG) with NVM-trimmed precision oscillator. Its memory subsystem includes 60 KB of user-programmable FLASH with block protection and vector redirection capability.

Peripherals are tightly coupled to the 20-MHz internal bus: dual SCI modules support master/slave extended break for LIN 2.0 and SAE J2602 compliance; the 16-bit TPM modules offer buffered centered PWM, input capture, and output compare on all channels; and the 10-bit ADC includes automatic compare and temperature sensor channel.

Key Specifications

Pinout & Package

The MC9S08AC60CFJE is housed in a 48-pin QFN package (98ASA00466D) with exposed thermal pad, copper-wire interconnect, and 0.5 mm pitch. This RoHS-compliant, lead-free package supports automated reflow assembly and enhanced thermal dissipation for automotive under-hood environments.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit automotive microcontroller applications.

Compared with MC9S08AC48CFJE, the MC9S08AC60CFJE offers 12 KB additional FLASH for complex diagnostics and calibration tables; compared with S9KEAZN64ACLH, it delivers proven automotive qualification and lower power in Wait/Stop modes but lacks ARM ecosystem support and floating-point capability.

Availability

MC9S08AC60CFJE is available at Aetrix Electronics and suitable for automotive body electronics, door control modules, and seat positioning systems requiring stable component supply across extended production lifecycles.

Supply support for MC9S08AC60CFJE 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) is a global leader in automotive, industrial, and networking semiconductors, known for robust MCU platforms and long-term product longevity commitments.

The MC9S08AC60CFJE belongs to the HCS08 AC-series, designed specifically for cost-sensitive, safety-aware automotive body control applications requiring high peripheral integration, flash security, and LIN protocol support.

FAQ

What is the package type and lead count for the MC9S08AC60CFJE?

The MC9S08AC60CFJE uses a 48-pin QFN package (document number 98ASA00466D) with exposed thermal pad and 0.5 mm pitch. It replaces earlier gold-wire versions with copper-wire interconnect per Freescale's QFN migration addendum. This package supports automated assembly and meets automotive thermal requirements for under-dash mounting.

Does the MC9S08AC60CFJE support LIN 2.0 communication natively?

Yes, the MC9S08AC60CFJE includes two SCI modules that fully support LIN 2.0 Protocol and SAE J2602. Each SCI provides master extended break generation and slave extended break detection, enabling direct connection to LIN transceivers without external protocol translation. The MC9S08AC60CFJE datasheet confirms this capability in Section 13.

What is the maximum operating frequency of the MC9S08AC60CFJE CPU and bus?

The MC9S08AC60CFJE CPU operates at up to 40 MHz, while the internal bus frequency is rated at 20 MHz. This bus speed governs peripheral timing, timer resolution, and interrupt response latency. The internal clock generator (ICG) supports precision trimming via NVM to maintain stability across voltage and temperature ranges.

How much on-chip FLASH and RAM does the MC9S08AC60CFJE provide?

The MC9S08AC60CFJE integrates 60 KB of on-chip FLASH memory with security options and block protection, plus 2 KB of on-chip RAM. FLASH supports burst programming and vector redirection; RAM is used for stack, variables, and ISR context. These capacities are confirmed in the "Memory Options" section of the Rev. 3 datasheet.

Does the MC9S08AC60CFJE include hardware CRC acceleration?

Yes, the MC9S08AC60CFJE features a dedicated Cyclic Redundancy Check (CRC) module (S08CRCV1) capable of hardware-accelerated 16-bit CRC generation using a shift register architecture. This enables fast firmware image validation and memory integrity checking without CPU overhead, as documented in Chapter 8 of the MC9S08AC60CFJE datasheet.