NXP Semiconductors S9S08DN48F2MLF

Overview

S9S08DN48F2MLF from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 48 KB flash, 2 KB RAM, and 2 KB EEPROM, operating at up to 40 MHz CPU / 20 MHz bus frequency. It integrates ADC, SPI, I²C, SCI with LIN/J2602 support, TPM timers, RTC, and dual analog comparators - deployed in automotive body control modules, industrial sensor nodes, and appliance motor controllers.

For engineers reviewing the S9S08DN48F2MLF datasheet, S9S08DN48F2MLF pinout, S9S08DN48F2MLF application, or S9S08DN48F2MLF equivalent, key selection criteria include its 48-pin LQFP package, 12-bit 16-channel ADC with temperature sensor, single-wire BDM debug interface, and dual low-power stop modes with RTC wake-up capability.

Technical Context

The S9S08DN48F2MLF implements the HCS08 CPU core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources. Its Multi-Purpose Clock Generator (MCG) provides FLL and PLL modes with ±1.5% accuracy using internal temperature-compensated reference, factory-trimmed and stored in flash.

On-chip peripherals include a 12-bit ADC with 2.5 μs conversion time and automatic compare, two analog comparators with bandgap reference option, SCI1 compliant with LIN 2.0 and SAE J2602, and two TPM modules (6-channel + 2-channel) supporting input capture, output compare, and edge-aligned PWM.

Key Specifications

Pinout & Package

Package: 48-pin low-profile quad flat-pack (LQFP), 7×7 mm, 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08DN60F2MLF and S9S08DN32F2MLF, the S9S08DN48F2MLF delivers optimal flash capacity for mid-complexity automotive and industrial firmware - avoiding over-provisioning while retaining headroom for field updates and diagnostic extensions.

Availability

S9S08DN48F2MLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and smart appliance control systems requiring stable component supply across extended product lifecycles.

Supply support for S9S08DN48F2MLF 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.

The S9S08DN48F2MLF belongs to the HCS08 DN-series - designed specifically for cost-optimized, low-power automotive body electronics and industrial control where robustness, LIN compliance, and mixed-signal integration are critical.

FAQ

What is the maximum operating frequency of the S9S08DN48F2MLF CPU core?

The S9S08DN48F2MLF CPU core operates at a maximum frequency of 40 MHz, with a corresponding bus clock of 20 MHz. This performance level is achieved using the on-chip Multi-Purpose Clock Generator (MCG) in PLL or FLL mode. The MCG supports internal reference trimming and external crystal inputs from 1 MHz to 16 MHz, enabling precise timing control without external high-frequency oscillators. All timing specifications in the official datasheet are validated across the full industrial temperature range (–40°C to +105°C).

Does the S9S08DN48F2MLF support LIN bus communication?

Yes, the S9S08DN48F2MLF supports LIN bus communication through its SCI1 module, which is fully compliant with LIN 2.0 and SAE J2602 protocols. It provides hardware-level master extended break generation and slave extended break detection, along with wakeup-on-active-edge functionality. This enables direct integration into automotive LIN networks without external transceivers for basic node roles. The S9S08DN48F2MLF's integrated LIN support reduces system BOM cost and simplifies ECU design for body electronics applications.

How much EEPROM memory does the S9S08DN48F2MLF include, and what are its erase characteristics?

The S9S08DN48F2MLF includes 2 KB of on-chip EEPROM memory that is in-circuit programmable. Erase operations are performed in 4-byte dual-page or 8-byte single-page sectors, allowing fine-grained data management. The device supports erase abort functionality and permits simultaneous program/erase operations while executing code from flash memory. These capabilities make the S9S08DN48F2MLF suitable for applications requiring frequent nonvolatile parameter storage, such as calibration data or usage logs in automotive and industrial systems.

What debug interface does the S9S08DN48F2MLF use, and is external hardware required?

The S9S08DN48F2MLF uses a single-wire background debug (BDM) interface, requiring only the BKGD/MS pin and ground for full debugging and programming access. No external debug adapter is mandatory - standard BDM tools (e.g., P&E Multilink, OSJTAG) connect directly. The on-chip in-circuit emulator (ICE) supports real-time bus capture and non-intrusive breakpoints. This debug architecture minimizes PCB footprint and eliminates the need for dedicated JTAG headers, making the S9S08DN48F2MLF ideal for space-constrained automotive and industrial designs.

Is the S9S08DN48F2MLF pin-compatible with other members of the DN-series?

Yes, the S9S08DN48F2MLF is pin-compatible with the MC9S08DN60F2MLF and S9S08DN32F2MLF in the same 48-pin LQFP package. All three share identical pin assignments, electrical characteristics, and peripheral register maps. This allows hardware reuse across firmware variants - for example, designing one PCB layout that supports 32 KB, 48 KB, or 60 KB flash versions based on software complexity requirements. Pin compatibility extends to reset behavior, clock inputs, and debug interface signaling, ensuring seamless migration within the DN-family.