NXP Semiconductors MC9S08DZ128CLLR

Overview

MC9S08DZ128CLLR 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 MC9S08DZ128CLLR datasheet, MC9S08DZ128CLLR pinout, MC9S08DZ128CLLR application, or MC9S08DZ128CLLR equivalent, key selection criteria include its on-chip MSCAN module with five receive buffers and programmable identifier filters, 12-bit 24-channel ADC with temperature sensor and internal bandgap reference (1.18–1.21 V), and multi-mode clock generator supporting FEI/FEE/FBE/PEE/BLPE/PBE modes with PLL lock detection and loss-of-lock protection.

Technical Context

The MC9S08DZ128CLLR implements the HCS08 CPU core with 40-MHz instruction execution (20-MHz bus), BGND instruction support, and up to 32 interrupt/reset sources. Its Multi-Purpose Clock Generator (MCG) provides flexible clocking via crystal/resonator (31.25 kHz–16 MHz) or external square wave input, with FLL and PLL modes, nonvolatile trim (0.2% resolution), and DIV32 enable for high-range external reference division.

Peripherals include two SCIs compliant with LIN 2.0 and SAE J2602, dual I²C interfaces (up to 100 kbps), three TPM modules (6+2+4 channels), and a real-time counter with external crystal timebase or 1-kHz internal oscillator for stop-mode wake-up. The device supports FLASH and EEPROM in-circuit programming with erase abort and block protection.

Key Specifications

Pinout & Package

MC9S08DZ128CLLR is packaged in a 100-pin LQFP (14×14 mm) with exposed thermal pad. Pin assignments are defined per Table 2-1 of the datasheet, including dedicated XTAL/EXTAL inputs (pins 12/11), RESET (pin 13), BKGD/MS (pin 100), VDD/VSS power 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 MC9S08DZ128CLLR, S9S08DZ128F1MLHR offers extended temperature and reflow robustness without functional trade-offs, while MC9S08DZ60CLL sacrifices CAN, memory, and analog capability to meet lower-cost targets - making the MC9S08DZ128CLLR optimal for full-featured automotive body control designs.

Availability

MC9S08DZ128CLLR is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and smart lighting systems requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.

Supply support for MC9S08DZ128CLLR 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 company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MC9S08DZ128CLLR belongs to NXP's legacy HCS08 microcontroller family, engineered specifically for cost-sensitive, high-reliability automotive body electronics applications requiring integrated CAN, robust analog front-ends, and low-power operation.

FAQ

What is the maximum bus frequency supported by the MC9S08DZ128CLLR?

The MC9S08DZ128CLLR supports a maximum bus frequency of 20 MHz. This is achieved through its HCS08 CPU core running at 40 MHz with a 2:1 divide ratio, enabling deterministic real-time performance for automotive and industrial control tasks. The actual bus speed depends on MCG configuration - for example, selecting PEE mode with appropriate RDIV and VDIV settings yields stable 20-MHz operation from an 8-MHz crystal input. The MC9S08DZ128CLLR datasheet specifies timing parameters and setup/hold requirements for all peripheral interfaces at this maximum rate.

Does the MC9S08DZ128CLLR include a hardware CAN controller?

Yes, the MC9S08DZ128CLLR integrates a fully compliant MSCAN module supporting CAN 2.0A and 2.0B protocols. It features five receive buffers with FIFO storage, flexible identifier acceptance filters (configurable as 2×32-bit, 4×16-bit, or 8×8-bit), and support for standard and extended data frames. The MC9S08DZ128CLLR does not include a physical CAN transceiver - an external transceiver such as the TJA1042 is required for bus-level signaling, but the protocol handling, message filtering, and error management are performed entirely on-chip.

What are the supported clock source options for the MC9S08DZ128CLLR?

The MC9S08DZ128CLLR supports multiple clock sources via its Multi-Purpose Clock Generator (MCG): external crystal or ceramic resonator (31.25 kHz–38.4 kHz or 1–16 MHz), external square-wave clock input (up to 16 MHz), and internal reference (bandgap-derived). The MCG operates in six modes - FEI, FEE, FBE, PEE, BLPE, and PBE - allowing dynamic switching between FLL and PLL for optimized power/performance trade-offs. The MC9S08DZ128CLLR's DIV32 bit enables 32× division of high-range external clocks to meet FLL input requirements, as documented in Section 8.5.1.1 of the datasheet.

Can the MC9S08DZ128CLLR perform ADC conversions while in low-power stop mode?

No, the MC9S08DZ128CLLR cannot perform active ADC conversions in Stop2 or Stop3 modes because the ADC module is disabled when the system clock is gated. However, it supports wake-up from Stop3 mode using the real-time counter (RTC) or external interrupts, after which ADC operations resume immediately. The MC9S08DZ128CLLR does allow analog comparators (ACMPx) to remain active in Stop3 mode - enabling low-power threshold detection without full MCU wake-up. For continuous analog monitoring, designers must use the ACMP with interrupt-on-edge functionality rather than the ADC.

Is the MC9S08DZ128CLLR pin-compatible with other members of the DZ series?

Yes, the MC9S08DZ128CLLR is pin-compatible with other 100-pin LQFP variants in the MC9S08DZ series, including the MC9S08DZ96CLLR and MC9S08DV128CLLR, sharing identical pin assignments for power, reset, clock, BDM, and peripheral multiplexing. However, differences in on-die peripherals - such as absence of MSCAN in DV variants or reduced Flash/RAM in DZ96 - mean that software and system-level compatibility requires verification. The MC9S08DZ128CLLR datasheet confirms pin equivalence in Table 2-1 and notes functional differences in Chapter 1.