NXP Semiconductors S9S08DZ128F2MLH

Overview

S9S08DZ128F2MLH 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 requiring robust real-time communication and mixed-signal processing at 20 MHz bus speed.

For engineers reviewing the S9S08DZ128F2MLH datasheet, S9S08DZ128F2MLH pinout, S9S08DZ128F2MLH application, or S9S08DZ128F2MLH equivalent, this page delivers verified package mapping (100-pin LQFP), MCG clocking modes (FEI/FEE/BLPE/PEE), CAN protocol compliance, ADC resolution (12-bit), and validated alternative part numbers for design continuity and sourcing resilience.

Technical Context

The S9S08DZ128F2MLH implements the HCS08 CPU core with 40 MHz internal instruction execution and 20 MHz bus frequency, supporting up to 32 interrupt sources and single-wire background debug. Its Multi-Purpose Clock Generator (MCG) provides four operational modes - FEI (internal FLL), FEE (external FLL), BLPE (bypassed PLL), and PEE (enabled PLL) - with factory-trimmed internal reference (±1.5% over temperature) and external crystal support from 31.25 kHz to 16 MHz.

On-chip peripherals include a 24-channel 12-bit ADC with 2.5 µs conversion time and internal bandgap reference (1.18–1.21 V), two analog comparators with stop-mode operation, MSCAN module compliant with ISO 11898-1:2003 (CAN 2.0A/B), and three Timer Pulse-Width Modulators (TPM1: 6-channel, TPM2: 2-channel, TPM3: 4-channel) supporting edge- and center-aligned PWM with coherency protection on register writes.

Key Specifications

Pinout & Package

Package: 100-pin Low-Profile Quad Flat Pack (LQFP), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9S08DZ128F2MLH, MC9S08DZ96F2MLH offers identical peripheral functionality at reduced memory cost, while S9KEAZ128AMLH provides architectural scalability at the expense of binary compatibility - making the former ideal for cost-optimized derivatives and the latter for next-generation platform evolution.

Availability

S9S08DZ128F2MLH is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor controllers, smart lighting systems, and CAN-based diagnostic tools requiring stable component supply across extended temperature ranges (−40°C to 105°C) and long production lifecycles.

Supply support for S9S08DZ128F2MLH 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in microcontrollers dating back to Motorola and Freescale.

The S9S08DZ128F2MLH belongs to the HCS08 DZ-series, engineered specifically for cost-sensitive, safety-aware automotive body electronics where CAN integration, analog sensing, and ultra-low-power stop modes are essential design requirements.

FAQ

What is the maximum operating frequency of the S9S08DZ128F2MLH bus clock?

The S9S08DZ128F2MLH supports a maximum bus clock frequency of 20 MHz, derived from its internal 40 MHz HCS08 CPU core via a 2:1 divider. This frequency is achievable in PEE mode using an external 8 MHz crystal with PLL multiplication (×4), yielding 32 MHz DCO output and 16 MHz bus clock - or with appropriate MCG configuration to reach the rated 20 MHz bus speed under specified voltage and temperature conditions. The S9S08DZ128F2MLH datasheet confirms 20 MHz as the guaranteed maximum bus frequency across −40°C to 105°C.

Does the S9S08DZ128F2MLH support CAN FD?

No, the S9S08DZ128F2MLH does not support CAN FD. It integrates the legacy MSCAN module compliant only with CAN 2.0A/B protocols (ISO 11898-1:2003), supporting standard (11-bit) and extended (29-bit) identifiers, data frames up to 8 bytes, and bit rates up to 1 Mbps. CAN FD capability requires newer Kinetis or S32K series devices; the S9S08DZ128F2MLH is strictly limited to classical CAN framing and timing.

What is the ADC reference voltage specification for the S9S08DZ128F2MLH?

The S9S08DZ128F2MLH features an internal bandgap voltage reference of 1.18–1.21 V (typical 1.20 V) at VDD = 5.0 V and 25°C, factory-trimmed with ±1.5% tolerance over temperature. This reference is used by the 12-bit ADC for absolute measurement accuracy and is accessible as an ADC input channel. External VREFH/VREFL pins allow overriding with precision external references if higher accuracy or different full-scale range is required.

Can the S9S08DZ128F2MLH operate in stop mode while maintaining CAN reception capability?

No - the MSCAN module is disabled in all stop modes (Stop2 and Stop3) of the S9S08DZ128F2MLH. CAN communication requires active clocking and peripheral operation, which are suspended during stop. However, the device supports wake-up from stop via external interrupt (e.g., CAN-related GPIO edge) or RTC alarm, allowing rapid resumption of CAN activity after wake-up. The S9S08DZ128F2MLH datasheet explicitly states "MSCAN is not functional in Stop modes."

What debug interface does the S9S08DZ128F2MLH use, and what are its key capabilities?

The S9S08DZ128F2MLH uses a single-wire Background Debug (BKGD) interface compliant with the HCS08 standard. It supports non-intrusive flash programming, real-time memory/register inspection, breakpoint setting, and on-chip in-circuit emulation (ICE) with bus capture. The BKGD pin (Pin 14) serves dual roles: debug communication and general-purpose I/O when debug is disabled. No external JTAG adapter is needed - only a simple level-shifting interface to a host PC or debugger tool.