NXP Semiconductors S9S08DN32F2CLF

Overview

S9S08DN32F2CLF from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 32 KB on-chip 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 (LIN/J2602 compliant), TPM, RTC, and dual analog comparators - deployed in automotive body electronics, industrial sensor nodes, and appliance control systems.

For engineers reviewing the S9S08DN32F2CLF datasheet, S9S08DN32F2CLF pinout, S9S08DN32F2CLF application, or S9S08DN32F2CLF equivalent, key selection criteria include Flash size (32 KB), EEPROM endurance (100K erase/write cycles), real-time interrupt capability in Stop3 mode, and LIN 2.0 protocol support via SCI1.

Technical Context

The S9S08DN32F2CLF 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-based clock synthesis with factory-trimmed internal reference and ±1.5% FLL accuracy over temperature.

On-chip peripherals include a 12-bit, 16-channel ADC with 2.5 µs conversion time and integrated temperature sensor; two analog comparators with bandgap reference option; and dual TPM modules (6-channel + 2-channel) supporting input capture, output compare, and edge-aligned PWM - all operable in Wait and Stop2/Stop3 modes.

Key Specifications

Pinout & Package

48-pin low-profile quad flat-pack (LQFP), 7×7 mm body, 0.5 mm pitch, exposed thermal pad (EP), RoHS-compliant matte tin finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08DN48F2CLF and S9S08DN16F2CLF, the S9S08DN32F2CLF delivers optimal balance of code storage (32 KB), peripheral richness, and thermal performance in the 48-pin LQFP package - making it the default choice for mid-complexity automotive and industrial control where firmware growth headroom and cost are both constrained.

Availability

S9S08DN32F2CLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and home appliance motor control requiring stable component supply across extended temperature ranges (–40°C to +105°C).

Supply support for S9S08DN32F2CLF 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The S9S08DN32F2CLF belongs to the HCS08 DN-series microcontrollers, designed specifically for cost-sensitive, low-power automotive body electronics and industrial control applications requiring LIN compliance, robust EEPROM, and real-time interrupt capability in ultra-low-power states.

FAQ

What is the maximum operating frequency of the S9S08DN32F2CLF CPU and bus?

The S9S08DN32F2CLF features an HCS08 CPU core rated for up to 40 MHz operation, with a corresponding maximum bus frequency of 20 MHz. This timing is achieved using the on-chip Multi-Purpose Clock Generator (MCG) in PLL or FLL mode, and is validated across the full industrial temperature range (–40°C to +105°C). The S9S08DN32F2CLF datasheet specifies DC characteristics and timing parameters at both 5.0 V and 3.3 V supply voltages.

Does the S9S08DN32F2CLF support LIN 2.0 communication natively?

Yes, the S9S08DN32F2CLF supports LIN 2.0 natively through its SCI1 module, which implements master extended break generation and slave extended break detection per SAE J2602. No external transceiver is required for basic LIN node functionality, though physical layer compliance depends on external circuitry. The S9S08DN32F2CLF also supports automatic wakeup on LIN bus activity while in Stop modes.

What is the endurance rating and erase granularity of the on-chip EEPROM in the S9S08DN32F2CLF?

The S9S08DN32F2CLF integrates 2 KB of in-circuit programmable EEPROM rated for 100,000 erase/write cycles. Erase operations are supported in two granularities: 8-byte single-page erase and 4-byte dual-page erase. Both methods allow background execution - the S9S08DN32F2CLF can execute Flash code while erasing or programming EEPROM sectors.

Can the S9S08DN32F2CLF operate from an internal clock source without external crystals?

Yes, the S9S08DN32F2CLF can operate entirely from internal clock sources: the factory-trimmed 31.25 kHz or 1 MHz internal reference clock (IRC), or the 1 kHz low-power oscillator used for RTC and Stop3-mode wakeups. The MCG supports FLL mode using the IRC as reference, enabling full system operation - including ADC, TPM, and SCI - without any external crystal or resonator.

What debug interface does the S9S08DN32F2CLF use, and what hardware is required?

The S9S08DN32F2CLF uses a single-wire background debug (BDM) interface accessible via the BKGD/MS pin. Only one signal line plus ground is required for full in-circuit debugging and programming - no JTAG header or additional pins needed. Compatible debug tools include the NXP Multilink Universal and compatible OpenSDA-based adapters. The S9S08DN32F2CLF supports flash programming, real-time register inspection, and breakpoint execution through this interface.