NXP Semiconductors MC9S08DV128CLF

Overview

MC9S08DV128CLF from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 128 KB on-chip FLASH, 6 KB RAM, and integrated CAN 2.0A/B controller, ADC, SPI, I²C, SCI, TPM, and RTC - designed for automotive body electronics and industrial control requiring deterministic real-time response at up to 20 MHz bus frequency.

For engineers reviewing the MC9S08DV128CLF datasheet, MC9S08DV128CLF pinout, MC9S08DV128CLF application, or MC9S08DV128CLF equivalent, key selection criteria include CAN protocol compliance, FLASH endurance (100k erase/write cycles), internal bandgap reference (1.20 V ±10 mV), stop-mode current (1.5 µA typical), and single-wire background debug interface support.

Technical Context

The MC9S08DV128CLF implements the HCS08 CPU core with 40-MHz instruction execution (20-MHz bus), supporting up to 32 interrupt sources and featuring a Multi-Purpose Clock Generator (MCG) with FLL and PLL modes, factory-trimmed internal reference (0.2% resolution, 1.5% tolerance over temperature), and selectable external crystal input (1–16 MHz).

It integrates MSCAN module compliant with ISO 11898-1:2003 (CAN 2.0A/B), two 12-bit ADCs (24-channel total, 2.5 µs conversion), dual SCI supporting LIN 2.0/SAE J2602, and three TPM modules (6+2+4 channels) with edge- and center-aligned PWM - all operable in low-power stop3 mode with RTC wake-up capability.

Key Specifications

Pinout & Package

MC9S08DV128CLF is housed in a 48-pin LQFP (7×7 mm, 0.5 mm pitch) package with 39 general-purpose I/O pins, including dedicated CANH/CANL, XTAL/EXTAL, RESET, BKGD/MS, VDD/VSS, and peripheral multiplexed pins (e.g., TPMxCHn, SCIxTX/SCIxRX, SPIxMOSI/SPIxSCK).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08DZ128CLF, the MC9S08DV128CLF offers identical CAN, ADC, and debug capabilities in a smaller 48-pin package but omits EEPROM and reduces RAM to 6 KB - ideal for cost- and space-constrained nodes. The S9KEAZ128AMLH provides architectural upgrade path with Cortex-M0+ core, yet requires full firmware rearchitecture.

Availability

MC9S08DV128CLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart lighting nodes, and CAN-based sensor networks requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MC9S08DV128CLF 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 embedded MCU heritage.

The MC9S08DV128CLF belongs to the HCS08 family - engineered for cost-sensitive, real-time automotive body electronics and industrial control where CAN integration, low-power operation, and robust debug capability are essential.

FAQ

What is the maximum bus frequency supported by the MC9S08DV128CLF?

The MC9S08DV128CLF supports a maximum bus frequency of 20 MHz, derived from its 40-MHz HCS08 CPU core operating at double-speed instruction execution. This frequency is achievable using the MCG's PLL mode with appropriate external crystal (e.g., 8 MHz input yielding 32 MHz DCO output, divided by 2). Bus timing directly affects peripheral operation - including CAN bit rate accuracy and ADC sampling rate - and must be validated against system-level timing budgets.

Does the MC9S08DV128CLF include on-chip EEPROM memory?

No, the MC9S08DV128CLF does not include on-chip EEPROM. Unlike the MC9S08DZ128CLF variant (which provides 2 KB EEPROM), the DV-series uses FLASH for both program code and data storage. Data retention is achieved via FLASH sector emulation techniques, and the MC9S08DV128CLF datasheet specifies 100,000 erase/write cycles for FLASH - sufficient for most parameter storage and logging use cases when managed with wear-leveling firmware.

What CAN protocol versions does the MC9S08DV128CLF support?

The MC9S08DV128CLF supports CAN 2.0A and CAN 2.0B protocols through its integrated MSCAN module, compliant with ISO 11898-1:2003. It handles both standard (11-bit) and extended (29-bit) identifier frames, supports remote transmission requests, and includes five receive buffers with FIFO buffering and programmable acceptance filtering (configurable as 2×32-bit, 4×16-bit, or 8×8-bit masks). This enables robust implementation in automotive networks and industrial fieldbus systems.

Can the MC9S08DV128CLF operate from a 3.3 V supply?

Yes, the MC9S08DV128CLF operates across a supply voltage range of 2.7 V to 5.5 V, making it compatible with 3.3 V systems. Its internal voltage regulator and bandgap reference remain stable across this range, and all I/O pins are 5 V tolerant when configured as inputs - allowing direct interfacing with legacy 5 V peripherals without level shifters. However, external crystal oscillator performance should be verified per datasheet electrical characteristics at 3.3 V.

How is debug and programming performed on the MC9S08DV128CLF?

Debug and programming of the MC9S08DV128CLF is performed via a single-wire background debug interface (BDM) using the BKGD/MS pin. This interface supports full in-circuit emulation, real-time bus capture, flash programming, and breakpoint debugging without requiring dedicated JTAG or SWD pins. Standard tools include P&E Micro's Cyclone programmers and NXP's S08 CodeWarrior IDE - enabling rapid development and field firmware updates with minimal PCB footprint.