NXP Semiconductors MC9S08DZ128CLL

Overview

MC9S08DZ128CLL from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 128 KB on-chip FLASH, 8 KB RAM, and integrated CAN 2.0A/B controller, ADC, PWM, and real-time counter - designed for automotive body electronics and industrial control applications requiring robust communication, precise timing, and mixed-signal integration.

For engineers reviewing the MC9S08DZ128CLL datasheet, MC9S08DZ128CLL pinout, MC9S08DZ128CLL application, or MC9S08DZ128CLL equivalent, this page delivers verified technical context, package-specific pin mapping, functional alternatives, and supply-ready availability details - all grounded in Rev. 2 (07/2015) official documentation and validated LQFP-100 mechanical data.

Technical Context

The MC9S08DZ128CLL implements the HCS08 CPU core running at up to 40 MHz (20 MHz bus), with a Multi-Purpose Clock Generator (MCG) supporting FEI, FEE, FBE, PEE, and BLPE modes - enabling flexible clock source selection including external crystals (up to 16 MHz with HGO=1) and internal trimmed reference. Its MCG provides nonvolatile trim (0.2% resolution, 1.5% tolerance over temperature) and loss-of-lock protection.

It integrates MSCAN compliant with ISO 11898-1 (CAN 2.0A/B), a 24-channel 12-bit ADC with 2.5 µs conversion time and internal bandgap reference (1.18–1.21 V), dual SCIs supporting LIN 2.0/SAE J2602, three TPM modules (6+2+4 channels), RTC with external crystal support, and single-wire background debug interface - all operating across −40°C to +105°C.

Key Specifications

Pinout & Package

MC9S08DZ128CLL is housed in a 100-pin low-profile quad flat-pack (LQFP-100), 14×14 mm body, 0.5 mm pitch, with exposed thermal pad (EP). Pin assignments are defined per Table 2-1 (Rev. 1, p.34) and confirmed in Addendum Rev.2 (p.34), including dedicated XTAL/EXTAL (pins 12/11), RESET (pin 13), BKGD/MS (pin 16), VDD/VSS rails, and peripheral-mapped I/O 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 MC9S08DZ128CLL, S9S08DZ128F1MLH extends temperature capability and qualification rigor for harsher environments, while MC9S08DZ60CLL reduces memory and analog resources to lower cost - neither offers pin-to-pin or functional equivalence without firmware and layout review.

Availability

MC9S08DZ128CLL is available at Aetrix Electronics and suitable for automotive body control, industrial motor interface, and railway signaling applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MC9S08DZ128CLL 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 microcontrollers dating back to Motorola and Freescale.

The MC9S08DZ128CLL belongs to the HCS08 DZ-series, engineered specifically for automotive body electronics and industrial control nodes demanding integrated CAN, robust analog front-ends, and extended temperature reliability - not general-purpose computing.

FAQ

What is the maximum operating frequency of the MC9S08DZ128CLL CPU core?

The MC9S08DZ128CLL CPU core operates at up to 40 MHz, delivering a 20 MHz bus frequency. This is achieved using the on-chip Multi-Purpose Clock Generator (MCG) in PEE mode with an external 8 MHz crystal and PLL multiplication (×4), as confirmed in Section 8.5.3.1 of the Rev. 2 datasheet. The MC9S08DZ128CLL maintains full peripheral functionality at this speed, including CAN, ADC, and PWM modules.

Does the MC9S08DZ128CLL support CAN FD or only classical CAN?

The MC9S08DZ128CLL supports only classical CAN per ISO 11898-1 (CAN 2.0A/B), not CAN FD. Its MSCAN module implements standard and extended data frames at up to 1 Mbps, with five receive buffers and programmable acceptance filters - as specified in Chapter 12 of the Rev. 1 datasheet. CAN FD features such as flexible data-rate and extended payload are absent in the MC9S08DZ128CLL architecture.

What is the purpose of the DIV32 bit in the MCGC3 register of the MC9S08DZ128CLL?

In the MC9S08DZ128CLL, the DIV32 bit (bit 4) in MCGC3 enables a divide-by-32 factor for the external reference clock feeding the FLL when RANGE = 1 - allowing use of higher-frequency crystals (e.g., 8 MHz) while keeping the FLL input within its 31.25–39.0625 kHz valid range. As clarified in Addendum Rev.2 (p.1), DIV32 must be cleared when PLLS = 1, making it exclusive to FLL-based modes like FEE and FBE.

Can the MC9S08DZ128CLL operate without an external crystal?

Yes, the MC9S08DZ128CLL can operate without an external crystal by using its internal trimmed reference clock in FEI mode (Fast Internal), delivering a nominal 20.97 MHz bus frequency. However, accuracy is ±2% over temperature and voltage - insufficient for CAN or UART timing-critical applications. For those, an external crystal (e.g., 8 MHz) is required to achieve the ±0.1% stability needed for reliable MC9S08DZ128CLL CAN communication.

What is the function of the BKGD/MS pin on the MC9S08DZ128CLL?

The BKGD/MS pin (Pin 16) on the MC9S08DZ128CLL serves dual roles: it is the single-wire background debug interface for programming, erasing, and real-time debugging via BDM, and also functions as the Mode Select input during reset to configure boot options (e.g., internal FLASH vs. external memory). Its operation is detailed in Section 2.2.4 and Chapter 17 of the Rev. 1 datasheet, and requires a dedicated BDM tool for full MC9S08DZ128CLL development access.