NXP Semiconductors S9S08QD4J1VSCR

Overview

S9S08QD4J1VSCR from NXP Semiconductors is an 8-bit HCS08 microcontroller with a 16 MHz CPU, 4 KB flash memory, and 256 bytes RAM, designed for cost-sensitive automotive and industrial control applications requiring low-power operation and integrated analog peripherals.

For engineers reviewing the S9S08QD4J1VSCR datasheet, S9S08QD4J1VSCR pinout, S9S08QD4J1VSCR application, or S9S08QD4J1VSCR equivalent, key selection criteria include its 8-pin SOIC package, internal clock source with ±2% accuracy over temperature/voltage, 4-channel 10-bit ADC with hardware trigger, and single-wire background debug interface.

Technical Context

The S9S08QD4J1VSCR implements the HCS08 CPU core with HC08 instruction set extension (including BGND), supporting up to 32 interrupt/reset sources and featuring a background debugging system with one active breakpoint plus two additional breakpoints in the on-chip debug module.

Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision trimming for 0.2% resolution and ±2% deviation across voltage and temperature; flash memory supports read/program/erase across full operating range, and power management includes Wait mode plus three Stop modes (Stop1–Stop3).

Key Specifications

Pinout & Package

8-pin SOIC package with exposed pad (RoHS-compliant); pinout validated per MC9S08QD4 Series Data Sheet Rev. 7 (2022), Section 2.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08QD4CPBE and S9S08QD2J1VSCR, the S9S08QD4J1VSCR provides automotive-grade temperature range and full 4 KB/256-byte memory allocation - critical for AEC-Q100-compliant body electronics where code size and thermal resilience are non-negotiable.

Availability

S9S08QD4J1VSCR is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor nodes, and home appliance timers requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for S9S08QD4J1VSCR 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The S9S08QD4J1VSCR belongs to the HCS08 QD-series - a family of cost-optimized, low-power 8-bit MCUs designed for automotive body electronics and simple industrial control where small footprint, debug simplicity, and robustness across temperature extremes are essential.

FAQ

What is the maximum operating temperature range for the S9S08QD4J1VSCR?

The S9S08QD4J1VSCR is qualified for operation from –40°C to +125°C, meeting automotive AEC-Q100 Grade 2 requirements. This extended temperature range ensures reliable performance in under-hood and other thermally demanding environments where the S9S08QD4J1VSCR serves as the primary control unit.

Does the S9S08QD4J1VSCR include an internal voltage reference for the ADC?

Yes, the S9S08QD4J1VSCR integrates an internal bandgap voltage reference for the 10-bit ADC, enabling accurate analog measurements without external reference components. This feature is explicitly documented in the ADC chapter of the MC9S08QD4 Series Data Sheet Rev. 7 and directly applies to the S9S08QD4J1VSCR variant.

Can the S9S08QD4J1VSCR operate without an external crystal or resonator?

Yes, the S9S08QD4J1VSCR can operate entirely from its internal clock source (ICS), which includes a frequency-locked loop (FLL) and trimmed internal reference. The ICS delivers ±2% accuracy across voltage and temperature, making external timing components optional for many cost-sensitive applications.

How many I/O pins does the S9S08QD4J1VSCR provide, and what are their capabilities?

The S9S08QD4J1VSCR provides six I/O terminals: four general-purpose bidirectional pins (PTA0–PTA3), one input-only pin (PTA4), and one output-only pin (PTA5). All I/Os support software-selectable pullups, slew rate control, and drive strength - with individual outputs rated for 10 mA and total package output current limited to 60 mA.

Is the S9S08QD4J1VSCR pin-compatible with the MC9S08QD4CPBE?

No - while both share the same HCS08 QD4 core and functional register map, the S9S08QD4J1VSCR uses an 8-pin SOIC package whereas the MC9S08QD4CPBE uses an 8-pin PDIP package. Pin assignments match per datasheet Section 2.1, but physical packaging and thermal characteristics differ significantly; PCB layout must be adapted for surface-mount versus through-hole assembly.