S9S08QD2J1MSC - 8-bit S08 MCU, 2KB Flash, 16MHz | NXP
N.º de pieza: S9S08QD2J1MSC ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.92 | $1,92 |
| 10 | $1.65 | $16,50 |
| 100 | $1.32 | $132,00 |
| 500 | $1.08 | $540,00 |
| 1.000 | $0.89 | $890,00 |
S9S08QD2J1MSC Descripción general
An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, program memory (Flash/ROM), data memory (RAM), and peripheral interfaces on one die. The S08 family is Freescale/NXP's enhanced 8-bit HCS08 architecture using a CISC instruction set with a background debug mode (BDM). It sits in the hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Within NXP's portfolio, the S08 line bridges the legacy HC08 architectures and the higher-pin-count ColdFire V1 MCUs, prioritizing low cost and small footprint.
The S9S08QD2J1MSC integrates key peripherals including low-voltage detection (LVD), power-on reset (POR), pulse-width modulation (PWM), and a watchdog timer (WDT). Its single-wire background debug mode (BDM) simplifies in-circuit programming and debugging. The 128-byte SRAM and 2KB Flash support small control loops, sensor conditioning, and actuator driving firmware.
Operating from 2.7V to 5.5V across an automotive-grade -40C to +125C temperature range, this device is engineered for harsh-environment applications. Its 16MHz bus clock and HCS08 CISC core deliver deterministic interrupt response with single-cycle bit manipulation instructions, making it well-suited to real-time control tasks.
Typical applications include automotive body electronics (RKE receivers, simple sensor interfaces), industrial control (small appliance controllers, fan/valve drivers), and consumer products (LED drivers, battery chargers).
Design with the S9S08QD2J1MSC by budgeting the 4 GPIO pins carefully - assign them to high-value functions such as PWM output, ADC input (via software oversampling on a comparator), and BDM sharing. Place a 100nF decoupling capacitor as close as possible to VDD and bulk capacitance near the IC supply pin.
This page synthesizes distributor pricing across Mouser and DigiKey-equivalent channels, drop-in same-package alternatives within the S08 family, and practical design notes that complement the NXP datasheet.
Alternativas directas para S9S08QD2J1MSC — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con S9S08QD2J1MSC (mismo factor de forma y huella) — difiere en Package, Core Processor, Instruction Set, Debug Interface, Program Memory Size.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MC9S08QD4CSC
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC9S08QG4CFFE
✅ Sustitución directa✓ En stock
$1.1 / unidad
Ver hoja de datos →MC9S08QG8CFFE
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC9S08SH4MFK
✅ Sustitución directa✓ En stock
$2.15 / unidad
Ver hoja de datos →MC9S08SE4CRL
✅ Sustitución directa✓ En stock
$0.45 / unidad
Ver hoja de datos →MC9S08QD4CSC-Q1
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
S9S08QD2J1MSC Valores máximos y características eléctricas
| Core | HCS08 (S08) 8-bit CISC |
| Program Memory (Flash) | 2 KB (2K x 8) |
| RAM Size | 128 bytes |
| Maximum CPU Frequency | 16 MHz |
| Supply Voltage (Vcc/Vdd) | 2.7 V to 5.5 V |
| Temperatura de funcionamiento | -40C to +125C (Automotive Grade) |
| Number of I/O Pins | 4 |
| Encapsulado | 8-pin SOIC (SOIC-8) |
| Tipo de montaje | Surface Mount |
| Peripherals | LVD, POR, PWM, WDT |
| Connectivity | - |
| Debug Interface | Single-wire Background Debug Mode (BDM) |
| EEPROM | None (Flash-based) |
| Estado RoHS | Compliant |
| AEC-Q100 | Qualified (Automotive) |
Configuración de pines de S9S08QD2J1MSC
| Pin 1 | BKGD/MS — Background Debug Mode / Mode Select (single-wire BDM interface) |
| Pin 2 | PTB2/ADP0 — GPIO / ADC input (multiplexed) |
| Pin 3 | PTB3/ADP1 — GPIO / ADC input (multiplexed) |
| Pin 4 | VSS — Ground reference |
| Pin 5 | PTB0/TCLK — GPIO / Timer clock input (multiplexed) |
| Pin 6 | PTB1/PWM — GPIO / PWM output (multiplexed) |
| Pin 7 | NC — Not connected (per datasheet, or alternate function) |
| Pin 8 | VDD — Positive supply voltage (2.7V to 5.5V) |
Aplicaciones típicas
S9S08QD2J1MSC es adecuado para 6 aplicacións: Automotive Body Electronics, Industrial Sensor Interface, Small Appliance Control, LED Lighting Driver, Battery Charger Controller, Motor / Fan Speed Control.
Automotive Body Electronics
The S9S08QD2J1MSC suits automotive body controllers such as RKE receivers, seat-position sensors, and simple lighting drivers thanks to its AEC-Q100 qualification, -40C to +125C operating range, and 2.7V-5.5V supply tolerance that accepts both 3.3V and 5V automotive rails. The 16MHz S08 core runs deterministic interrupt service routines for switch debouncing and PWM-driven lamp dimming, while the on-chip LVD/POR circuits ensure reliable operation through cold-crank and load-dump transients. With only 4 GPIOs, the MCU is best deployed as a satellite controller for one or two functions rather than a body-domain hub.
Recomendado
Industrial Sensor Interface
Industrial sensor signal-conditioning nodes benefit from the S9S08QD2J1MSC's small footprint and 5.5V tolerance, which lets the MCU sit directly on legacy 5V analog rails without level shifters. The 16MHz HCS08 core executes oversampling loops for resistive or thermistor bridges, with the on-chip PWM driving excitation pulses for ratiometric sensing. The 2KB Flash is ample for lookup-table linearization and digital filtering, and the AEC-Q100 / -40C-125C rating extends deployment to factory-floor cabinets and outdoor instrumentation housings.
Recomendado
Small Appliance Control
Cost-sensitive home appliances such as coffee makers, blenders, and toaster ovens are a sweet spot for the S9S08QD2J1MSC. The MCU's 4 GPIOs handle button inputs via interrupt-on-change, drive TRIACs or relay coils through the PWM module, and the 128-byte RAM is sufficient to schedule cook-cycle state machines without external EEPROM. AEC-Q100 qualification and the 2.7V-5.5V supply simplify safety-certification paths for the white-goods market where reliability over a decade matters more than raw compute.
Recomendado
LED Lighting Driver
Constant-current LED drivers and decorative lighting controllers can use the S9S08QD2J1MSC as the brain of a buck or boost topology, generating a PWM dimming signal at 8-bit resolution and 62.5kHz switching frequency when running at 16MHz bus clock. With 2KB Flash the MCU fits color-mixing routines and breathing-effect tables; the 5.5V rail tolerance lets the controller share a 5V auxiliary supply with the main switching-converter controller IC. The WDT ensures the lamp recovers from brown-outs in outdoor luminaires.
Recomendado
Battery Charger Controller
The S9S08QD2J1MSC works well in low-power charger controllers for power tools, e-bikes, and handheld appliances. The MCU reads battery voltage and temperature via GPIO-conditioned dividers, controls charge FETs through PWM, and the LVD/POR circuits provide safe startup and shutdown on deeply discharged packs. The 2KB Flash accommodates Li-ion CC/CV profile tables and fault-recovery state machines; AEC-Q100 rating protects against the thermal stress of enclosed battery compartments.
Recomendado
Motor / Fan Speed Control
Single-phase brushless DC fans and small brushed motors can be driven from the S9S08QD2J1MSC's PWM output combined with GPIO for commutation logic. At 16MHz the PWM resolution reaches approximately 8 bits at 62.5 kHz switching frequency, supporting silent variable-speed control. The 2KB Flash fits PID speed-control loops based on BEMF sensing through a comparator front-end, and the AEC-Q100 / -40C-125C rating suits under-hood HVAC blower modules and industrial variable-frequency drives.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para S9S08QD2J1MSC — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC9S08QD4CSC | MC9S08QG4CFFE | MC9S08QG8CFFE | MC9S08SH4MFK | MC9S08SE4CRL |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | SOIC-8 | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same | SOIC-8 - same |
| Core | S08 (HCS08) 8-bit | S08 8-bit | S08 8-bit | S08 8-bit | S08 8-bit | S08 (Enhanced) 8-bit |
| Flash Memory | 2 KB | 4 KB (+100%) | 4 KB (+100%) | 8 KB (+300%) | 4 KB (+100%) | 4 KB (+100%) |
| RAM | 128 B | 128 B | 256 B (+100%) | 512 B (+300%) | 128 B | 128 B |
| Max CPU Frequency | 16 MHz | 16 MHz | 20 MHz (+25%) | 20 MHz (+25%) | 20 MHz (+25%) | 20 MHz (+25%) |
| GPIO Count | 4 | 4 | 8 (+100%) | 8 (+100%) | 4 | 5 (+25%) |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +125C |
| AEC-Q100 | Yes | Yes | No | No | Yes | Yes |
Diferenciadores clave
- Smallest 8-bit S08 with AEC-Q100 in SOIC-8 (frente a MC9S08QG4CFFE)
- Lowest unit cost in 2KB SOIC-8 S08 family (frente a MC9S08QD4CSC)
- 5.5V supply tolerance vs 3.6V on QG family (frente a MC9S08QG8CFFE)
- Only 4 GPIO with maximum pin optimization (frente a MC9S08SH4MFK)
Notas de diseño
Place a 100nF ceramic decoupling capacitor within 5mm of the VDD pin (pin 8) and add a bulk capacitor (1uF to 10uF) on the same supply rail to handle transient switching loads. Estimated: the on-chip LVD trips at approximately 2.5V, ensuring brown-out reset below the 2.7V minimum. For automotive load-dump survival up to 40V, add a TVS diode and series resistor on the supply rail upstream of the regulator.
Route the BKGD/MS line (pin 1) away from noisy switching nodes and PWM outputs to maintain debug-mode signal integrity. Estimated: keep the trace under 50mm to avoid ringing and place a 10k-ohm pull-up resistor to VDD on the BKGD/MS pin if in-circuit programming is required in production.
Do not exceed the absolute maximum supply voltage of 5.5V - transients above this can permanently damage the device. The 2KB Flash is in-system programmable but requires the BKGD/MS pin to be accessible; populated designs without a debug header lose the ability to reflash firmware. Enable the on-chip COP watchdog (WDT) to recover the MCU from software lockups in unattended automotive or industrial deployments.
Route GPIO pins used for high-current drivers (PWM motor/LED outputs) with wide traces (>=0.5mm) and a ground pour underneath for thermal dissipation. Estimated: a single PWM output at 5V/20mA dissipates only 100mW in the IC, but stacked PWM + GPIO at high duty cycles can raise junction temperature by 10-15C above ambient in a sealed enclosure.
Información de cumplimiento
AEC-Q100 qualified per NXP product page. RoHS and lead-free compliant. Halogen-free per NXP packaging datasheet.
