NXP Semiconductors MC9S08DZ48ACLC

Overview

MC9S08DZ48ACLC from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 48 KB flash, 4 KB RAM, and integrated CAN 2.0A/B controller, ADC, and real-time counter-designed for automotive body electronics and industrial control systems requiring robust communication and low-power operation.

For engineers reviewing the MC9S08DZ48ACLC datasheet, MC9S08DZ48ACLC pinout, MC9S08DZ48ACLC application, or MC9S08DZ48ACLC equivalent, key selection criteria include CAN protocol compliance, 48 KB in-system programmable flash, 24-channel 12-bit ADC conversion time (2.5 μs), and support for Stop3/Stop2 low-power modes with RTC wake-up.

Technical Context

The MC9S08DZ48ACLC implements the HCS08 CPU core running at up to 40 MHz (20 MHz bus), supporting 32 interrupt/reset sources and BGND-based single-wire background debug. Its Multi-Purpose Clock Generator (MCG) provides FLL- and PLL-based clock synthesis with factory-trimmed internal reference and external crystal/resonator options (1–16 MHz).

On-chip peripherals include MSCAN with five receive buffers and flexible identifier filtering (2×32-bit, 4×16-bit, or 8×8-bit), two LIN-compliant SCIs, SPI, I²C, dual analog comparators, and a 6-channel + 2-channel TPM system-all operating under unified power management with COP watchdog, LVD reset/interrupt, and flash block protection.

Key Specifications

Pinout & Package

MC9S08DZ48ACLC is housed in a 48-pin LQFP package (7×7 mm, 0.5 mm pitch), compatible with standard surface-mount assembly processes and thermal reflow profiles for automotive-grade PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9S08DZ48F1MLC and MC9S08DZ60ACLC, the MC9S08DZ48ACLC delivers optimal cost/performance balance for production-ready 8-bit CAN applications within commercial-temperature constraints and fixed firmware footprint.

Availability

MC9S08DZ48ACLC is available at Aetrix Electronics and suitable for automotive body electronics, industrial CAN gateways, smart sensor nodes, and low-power telematics subsystems requiring stable component supply and long-term manufacturability.

Supply support for MC9S08DZ48ACLC 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 applications-with roots in Freescale's microcontroller heritage.

The MC9S08DZ48ACLC belongs to the HCS08 DZ-series, engineered specifically for cost-sensitive, CAN-enabled automotive body control and industrial networking applications where integration, reliability, and low-power operation are critical.

FAQ

What is the maximum operating frequency of the MC9S08DZ48ACLC CPU core?

The MC9S08DZ48ACLC CPU core operates at up to 40 MHz, while its system bus runs at 20 MHz. This architecture enables efficient instruction execution and peripheral timing control without requiring external clock dividers. The MCG module supports multiple clock sources-including internal trimmed reference, external crystal (1–16 MHz), and PLL/FLL modes-to sustain this performance across varying supply and temperature conditions. All timing specifications in the MC9S08DZ48ACLC datasheet are validated at this maximum frequency.

Does the MC9S08DZ48ACLC support CAN FD or only classical CAN?

The MC9S08DZ48ACLC supports only classical CAN per ISO 11898-1 (CAN 2.0A/B), not CAN FD. Its MSCAN module implements standard and extended data frames, remote frames, and five receive buffers with programmable acceptance filters-but lacks the bit-rate switching, extended data length, and CRC enhancements defined in CAN FD. For CAN FD applications, designers must consider newer NXP S32K or Kinetis families. The MC9S08DZ48ACLC remains fully interoperable with legacy CAN 2.0 networks used in automotive body control and industrial machinery.

How much EEPROM memory does the MC9S08DZ48ACLC include, and what are its erase characteristics?

The MC9S08DZ48ACLC integrates up to 2 KB of in-circuit programmable EEPROM with 4-byte dual-page or 8-byte single-page erase sectors. Erase operations can be aborted, and both program and erase functions operate while executing code from flash-enabling real-time parameter updates without halting application logic. This EEPROM is distinct from flash memory and is optimized for frequent write cycles, making it suitable for storing calibration data, device configuration, or usage counters across power cycles. The MC9S08DZ48ACLC datasheet specifies endurance and retention under full operating voltage and temperature ranges.

What debug interface does the MC9S08DZ48ACLC provide, and is JTAG supported?

The MC9S08DZ48ACLC uses a single-wire background debug (BKGD) interface-not JTAG-for programming and real-time debugging. This interface requires only the BKGD/MS pin and ground, eliminating the need for multi-pin debug headers. It supports full functionality including breakpoints, register reads/writes, memory inspection, and flash programming via standard BDM tools. JTAG is not implemented on the MC9S08DZ48ACLC; all development workflows rely on BDM-compliant debuggers such as P&E Multilink or SEGGER J-Link with BDM firmware. The MC9S08DZ48ACLC's debug architecture reduces PCB complexity and cost versus JTAG-based alternatives.

Is the MC9S08DZ48ACLC pin-compatible with other members of the DZ-series, such as the MC9S08DZ60ACLC?

Yes, the MC9S08DZ48ACLC is pin-compatible with the MC9S08DZ60ACLC and MC9S08DZ32ACLC in the same 48-pin LQFP package. All share identical pin assignments, electrical characteristics, and peripheral mappings-differing only in flash capacity (48 KB vs. 60 KB vs. 32 KB) and minor mask-level revisions. This allows direct hardware reuse across firmware variants and simplifies migration paths during product development. However, designers must verify that software does not exceed the target device's flash or RAM limits, as no runtime protection prevents overflow. The MC9S08DZ48ACLC datasheet confirms this compatibility in the "Ordering Information and Mechanical Drawings" appendix.