NXP Semiconductors MC9S08DZ128MLL

Overview

MC9S08DZ128MLL from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 128 KB Flash, 8 KB RAM, and integrated CAN 2.0A/B controller, ADC, TPM, SCI, SPI, I²C, and RTC - designed for automotive body electronics and industrial control systems operating at up to 20 MHz bus frequency.

For engineers reviewing the MC9S08DZ128MLL datasheet, MC9S08DZ128MLL pinout, MC9S08DZ128MLL application, or MC9S08DZ128MLL equivalent, key selection criteria include CAN protocol compliance, on-chip EEPROM programmability, multi-mode clock generation (FLL/PLL), low-voltage detection with interrupt/reset, and background debug interface support.

Technical Context

The MC9S08DZ128MLL implements the HCS08 CPU core with 40-MHz internal instruction execution (20-MHz bus), supporting up to 32 interrupt sources and featuring a Multi-Purpose Clock Generator (MCG) with FLL, PLL, and internal/external reference options - including trimmable bandgap reference (1.18–1.21 V) and DIV32-enabled high-range oscillator input (up to 16 MHz).

It integrates MSCAN compliant with ISO 11898-1:2003, supporting standard/extended frames, five receive buffers with FIFO, and programmable acceptance filters (2×32-bit, 4×16-bit, or 8×8-bit); ADC provides 24-channel, 12-bit conversion in ≤2.5 µs with temperature sensor and internal bandgap reference channel.

Key Specifications

Pinout & Package

MC9S08DZ128MLL is packaged in a 100-pin LQFP (14×14 mm, 0.5 mm pitch) with dedicated pins for CANH/CANL, XTAL/EXTAL, RESET, BKGD/MS, VDD/VSS rails, and multiplexed peripheral functions across Ports A–L.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08DZ128MLL, S9S08DZ128F2MLL offers enhanced flash reliability and errata resolution without design change, while MC9S08DZ60MLL trades memory capacity for lower unit cost - both retain full CAN 2.0A/B, ADC, and clocking compatibility but differ in data retention capability and qualification maturity.

Availability

MC9S08DZ128MLL is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control panels, commercial trailer brake systems, and medical infusion pump controllers requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08DZ128MLL 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 deep heritage in microcontroller innovation through its acquisition of Freescale in 2015.

The MC9S08DZ128MLL belongs to the HCS08 family - engineered specifically for cost-sensitive, safety-aware automotive body electronics and industrial control where CAN integration, EEPROM flexibility, and ultra-low-power stop modes are essential.

FAQ

What is the maximum bus frequency supported by the MC9S08DZ128MLL?

The MC9S08DZ128MLL supports a maximum bus frequency of 20 MHz, derived from its 40-MHz HCS08 CPU core running at double-speed internal clock. This frequency is achievable in PEE mode using the PLL with appropriate MCG configuration (e.g., 8 MHz crystal → 1 MHz reference → ×32 VDIV = 32 MHz DCO → ÷2 bus divider). The MC9S08DZ128MLL datasheet specifies timing parameters and setup/hold requirements for all peripherals at this speed.

Does the MC9S08DZ128MLL include on-chip EEPROM, and what are its erase characteristics?

Yes, the MC9S08DZ128MLL includes 2 KB of on-chip EEPROM that is in-circuit programmable. It supports 8-byte single-page erase or 4-byte dual-page erase sectors, with program and erase operations executable while running Flash code. Erase abort functionality allows interruption of ongoing erases, and the MC9S08DZ128MLL maintains EEPROM integrity across voltage drops via built-in error detection and recovery mechanisms.

How does the MC9S08DZ128MLL handle CAN communication, and what protocol versions does it support?

The MC9S08DZ128MLL integrates the MSCAN module compliant with CAN protocol version 2.0A and 2.0B, supporting both standard (11-bit) and extended (29-bit) identifier frames, as well as remote transmission requests. It features five receive buffers with FIFO storage and flexible acceptance filtering (configurable as 2×32-bit, 4×16-bit, or 8×8-bit masks), enabling robust message handling in automotive networks without external CAN controllers.

What power-saving modes are available on the MC9S08DZ128MLL, and which peripherals remain active in Stop3 mode?

The MC9S08DZ128MLL offers two very low-power stop modes (Stop2 and Stop3), a reduced-power wait mode, and real-time interrupt capability in all states. In Stop3 mode, the 1-kHz internal low-power oscillator remains active, sustaining the RTC and allowing periodic wake-up; the MSCAN module can be configured to wake on bus activity, and certain ADC channels retain limited functionality - all while consuming less than 2 µA typical current. The MC9S08DZ128MLL maintains register contents and RAM retention during Stop3.

Is the MC9S08DZ128MLL compatible with modern NXP development tools and debug interfaces?

Yes, the MC9S08DZ128MLL is fully supported by NXP's S32DS IDE and legacy CodeWarrior for Microcontrollers v10.x, with native recognition of its single-wire background debug interface (BDM). Flash programming, real-time emulation, and breakpoint debugging are operational using standard BDM pods (e.g., PEMICRO Multilink Universal). The MC9S08DZ128MLL also works with open-source tools like OpenOCD when paired with compatible debug adapters.