NXP Semiconductors S9S08QD2J1VSCR

Overview

S9S08QD2J1VSCR from NXP Semiconductors is an 8-bit HCS08 microcontroller with 16 MHz CPU, 2048 bytes of flash memory, and 128 bytes of RAM, designed for cost-sensitive embedded control in automotive body electronics and industrial sensors. It integrates ADC, dual timers (TIM1/TIM2), keyboard interrupt module, and internal clock source with FLL.

For engineers reviewing the S9S08QD2J1VSCR datasheet, S9S08QD2J1VSCR pinout, S9S08QD2J1VSCR application, or S9S08QD2J1VSCR equivalent, key selection criteria include flash size, I/O count, SOIC-8 package compatibility, low-voltage detection, and single-wire background debug support.

Technical Context

The S9S08QD2J1VSCR implements the HCS08 CPU core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources and active background debugging with one hardware breakpoint. Its internal clock source (ICS) uses a frequency-locked loop (FLL) trimmed for ±0.2% resolution and ±2% deviation over voltage and temperature.

Memory subsystem includes flash programmable/erasable across full operating range, with block protection and vector redirection. Peripherals include a 4-channel 10-bit ADC with hardware trigger from RTI, two timer modules (TIM1: 2-channel, TIM2: 1-channel), and a 4-pin keyboard interrupt module with software-selectable edge/level polarity.

Key Specifications

Pinout & Package

8-pin SOIC package (JEDEC MS-012AC), 150 mil body width, surface-mount, 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 MC9S08QD2CPBE and S9S08QD4J1VSCR, the S9S08QD2J1VSCR provides optimal balance of cost, footprint, and resource allocation for fixed-function automotive and industrial controls where code size remains under 2 KB and RAM usage stays below 128 B.

Availability

S9S08QD2J1VSCR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and smart appliance control boards requiring stable component supply and long-term lifecycle support.

Supply support for S9S08QD2J1VSCR 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, delivering secure, scalable solutions for automotive, industrial, IoT, and mobile applications.

The HCS08 family-including S9S08QD2J1VSCR-is designed for cost-effective, low-power embedded control in automotive body electronics and industrial automation where small footprint, debug capability, and robustness across temperature/voltage variations are essential.

FAQ

What is the maximum operating frequency of the S9S08QD2J1VSCR?

The S9S08QD2J1VSCR features an HCS08 CPU core with a maximum bus clock frequency of 16 MHz, achieved via its internal clock source (ICS) with frequency-locked loop (FLL). This frequency is maintained across the full operating voltage (2.7–5.5 V) and temperature (−40 °C to 125 °C) range, as verified in the MC9S08QD4 Series Data Sheet Rev. 7.

Does the S9S08QD2J1VSCR support in-circuit debugging?

Yes, the S9S08QD2J1VSCR supports single-wire background debugging via the BKGD/MS pin, enabling real-time program execution control, register inspection, and memory access without halting system operation. The on-chip debug module provides one hardware breakpoint plus two additional breakpoints managed by the debug interface.

What ADC capabilities does the S9S08QD2J1VSCR offer?

The S9S08QD2J1VSCR integrates a 4-channel, 10-bit analog-to-digital converter with internal bandgap reference, temperature sensor channel, and hardware triggering via the RTI counter. It supports automatic compare functionality and asynchronous clocking, allowing deterministic sampling intervals independent of CPU activity.

Is the S9S08QD2J1VSCR pin-compatible with other QD-series MCUs?

Yes, the S9S08QD2J1VSCR in 8-pin SOIC is pin-compatible with S9S08QD4J1VSCR and shares identical pin assignments, electrical characteristics, and peripheral mapping. However, it is not pin-compatible with PDIP-packaged variants like MC9S08QD2CPBE due to differing package footprints and thermal pad configurations.

What power-saving modes are available on the S9S08QD2J1VSCR?

The S9S08QD2J1VSCR supports Wait mode plus three Stop modes (Stop1, Stop2, Stop3), each progressively reducing power consumption. Stop3 disables the ICS and most peripherals while retaining RAM content and enabling wake-up via IRQ or reset. Low-voltage detection and COP watchdog remain functional in selected Stop modes per configuration.