MC9S08AC16CFJE - S08 8-bit MCU 40MHz 16KB Flash LQFP-32 | NXP
Référence : MC9S08AC16CFJE ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.88 | $9,88 |
| 10 | $8.9 | $89,00 |
| 100 | $8.2 | $820,00 |
| 500 | $7.6 | $3 800,00 |
| 1 000 | $6.95 | $6 950,00 |
MC9S08AC16CFJE Présentation
An 8-bit microcontroller (MCU) is an integrated circuit that combines a processor core, memory (Flash, RAM), and peripherals such as timers, serial interfaces, and ADCs on a single chip. Within the embedded systems hierarchy, the S08 family sits in the cost-sensitive control segment alongside Microchip PIC16, Renesas RL78, and STMicroelectronics STM8 devices. The AC family is the third family in NXP's Flexis series, offering pin-compatible 8-bit and 32-bit device duos that enable migration between S08 and ColdFire V1 cores without PCB redesign.
Key features of the MC9S08AC16CFJE include the enhanced HCS08 CPU core, UART, SPI, and I2C serial communication interfaces, an analog-to-digital converter, and multiple timer/PWM modules, making it suitable for general-purpose embedded control. The wide 2.7V to 5.5V operating range allows direct connection to 3.3V or 5V rails, simplifying power design in industrial environments.
Architecturally, the device is part of the low-cost, high-performance HCS08 family, which uses background debug mode (BDM) for non-intrusive flash programming and debugging without consuming on-chip resources. The Flash memory supports in-circuit reprogramming, enabling field firmware updates.
Typical applications include industrial control systems, home appliances, motor control, battery chargers, and automotive body electronics. The rich peripheral set and wide voltage range make it a strong fit for noise-tolerant industrial nodes.
A key design consideration is lifecycle status: NXP lists this part as End of Life, so new designs should plan migration to a recommended replacement or secure sufficient inventory for the production lifetime.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, verified as of 2026-10-18.
Alternatives de remplacement direct pour MC9S08AC16CFJE — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC9S08AC16CFJE (même facteur de forme et même empreinte) — différant par Package, RoHS Status, ADC, Core, Family.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S08AC16CFJER
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08AC32CFJE
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →MC9S08AC60CFJE
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC9S08AC8CFJE
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.48 / unité
Voir la fiche technique →MC9S08AC16CFJE Valeurs maximales et caractéristiques électriques
| Core Processor | S08 (HCS08) 8-bit |
| Core Size | 8-bit |
| Maximum CPU Clock Frequency | 40 MHz |
| Internal Bus Frequency | 20 MHz |
| Flash Memory Size | 16KB (16K x 8) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Number of I/O | 38 (with shared functions) |
| Peripherals | UART, SPI, I2C, ADC, Timer/PWM |
| Plage de température de fonctionnement | -40C to +85C |
| Package Type | 32-LQFP (7x7 mm) |
| Terminal Form | Gull Wing |
| Type de montage | Surface Mount |
| Product Family | Flexis AC series (S08AC) |
| Statut RoHS | RoHS Compliant |
| Statut du cycle de vie | End of Life (per NXP product page) |
Guide de configuration des broches du MC9S08AC16CFJE 32-lqfp (7x7 mm)
Configuration des broches du MC9S08AC16CFJE (boîtier 32-lqfp (7x7 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MC9S08AC16CFJE.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MC9S08AC16CFJE convient pour 6 applications: Industrial Control Systems, Home Appliance Control, Battery Chargers and Power Management, Motor Control (Small BLDC/DC), Building Automation and Lighting, Automotive Body Electronics.
Industrial Control Systems
The MC9S08AC16CFJE fits industrial control nodes where deterministic 8-bit control, a 2.7V to 5.5V tolerant supply, and -40C to +85C operation are required. Its 40 MHz S08 core executes PID loops and state machines with predictable timing, while the UART, SPI, and I2C interfaces link sensors, displays, and supervisory controllers. The wide voltage range allows direct connection to 5V industrial logic without level shifting, and the ADC supports analog process variables. Designers should note the part is End of Life per NXP, so industrial programs should pair it with the pin-compatible MC9S08AC32CFJE or MC9S08AC60CFJE as a supply-security hedge, both fitting the same LQFP-32 footprint with larger Flash.
Recommandé
Home Appliance Control
Washing machines, cooktops, and small appliances benefit from the MC9S08AC16CFJE's combination of low cost, robust 5V operation, and rich timer/PWM resources. The 16KB Flash holds full appliance state machines plus UI logic, the ADC reads thermistors and potentiometers, and PWM outputs drive triacs, relays, or fan motors. Its 2.7V to 5.5V supply tolerance rides out mains-derived supply sags better than 3.3V-only parts. The enhanced HCS08 core's background debug mode enables fast factory firmware loading. Because the device is EOL, appliance makers should qualify the reel-packed MC9S08AC16CFJER or the higher-memory AC family variants, which require no PCB change, as second-source drop-ins for long production lifetimes.
Recommandé
Battery Chargers and Power Management
Smart battery chargers use the MC9S08AC16CFJE's ADC to monitor cell voltage and current, its PWM modules to drive buck converter stages, and its UART to implement SMBus-style communication over I2C. The 40 MHz core handles charge-termination algorithms with ample margin, while the 2.7V to 5.5V supply range simplifies powering from the charger's own rail. HCS08 low-power wait and stop modes extend standby performance in portable applications. Designers must confirm current-sense front-end accuracy externally, as ADC specification details should be taken from the MC9S08AC16 data sheet. Given End-of-Life status, new charger platforms should start on the pin-compatible MC9S08AC32CFJE to secure long-term availability without layout changes.
Recommandé
Motor Control (Small BLDC/DC)
Small fan, pump, and actuator motors are well served by the MC9S08AC16CFJE's PWM channels and fast 40 MHz S08 core, which execute commutation and closed-loop speed control deterministically. The ADC samples back-EMF or hall-effect feedback for sensorless or sensored commutation, and the -40C to +85C range suits enclosed motor environments. The 5V-capable I/O connects directly to gate-driver logic, avoiding level-shift stages. Firmware fits comfortably in 16KB Flash for single-motor algorithms. Because NXP lists the part as End of Life, motor-control designs should verify stock or adopt the footprint-identical MC9S08AC60CFJE, whose extra Flash accommodates field-oriented-control upgrades later on the same PCB.
Recommandé
Building Automation and Lighting
Occupancy sensors, dimmers, and HVAC zone controllers leverage the MC9S08AC16CFJE's I2C and UART for networked communication and its ADC and PWM for sensor acquisition and lighting output control. The 8-bit core handles protocol framing and scheduling tasks with deterministic latency, and the industrial temperature range covers plenum and rooftop environments. The 2.7V to 5.5V supply suits both battery-powered wireless nodes and line-powered controllers. Its EOL status is the main caveat: building products typically ship for decades, so pair the standard part with the drop-in MC9S08AC16CFJER and MC9S08AC32CFJE qualification now. The Flexis pin-compatibility also permits a future ColdFire V1 migration without board redesign.
Recommandé
Automotive Body Electronics
Distributor data (Partstack) lists the MC9S08AC16CFJE with an automotive temperature grade, and S08 devices have long served window lifts, mirror controls, and sensor nodes. The 5V I/O tolerance, watchdog, and robust HCS08 architecture address the electrical harshness of 12V vehicle systems when paired with proper load-dump protection. However, the standard datasheet range is -40C to +85C and NXP marks the part End of Life, so automotive programs must confirm qualification scope with NXP and secure last-time-buy volume, or migrate to supported NXP automotive MCUs. For legacy platform maintenance, the pin-compatible MC9S08AC32CFJE provides the same footprint with continued ecosystem tool support.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S08AC16CFJE — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC9S08AC16CFJER | MC9S08AC32CFJE | MC9S08AC60CFJE | MC9S08AC8CFJE |
|---|---|---|---|---|---|
| Package | LQFP-32 (7x7 mm) | LQFP-32 (7x7 mm) - same | LQFP-32 (7x7 mm) - same | LQFP-32 (7x7 mm) - same | LQFP-32 (7x7 mm) - same |
| Brand | NXP Semiconductors (Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 16 KB | 16 KB | 32 KB | 60 KB | 8 KB |
| CPU Clock | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Core Architecture | S08 (HCS08) 8-bit, Flexis member | S08 8-bit - identical die | S08 8-bit, Flexis pin-compatible | S08 8-bit, Flexis pin-compatible | S08 8-bit, Flexis pin-compatible |
| Drop-in Compatibility | - | 100% - same device, reel packaging | Pin-to-pin, firmware memory map change | Pin-to-pin, firmware memory map change | Pin-to-pin, verify code fits 8 KB |
Principaux différenciateurs
- Flexis migration path (vs Microchip PIC16F series)
- Wide 2.7V to 5.5V supply range (vs 3.3V-only 8-bit MCUs)
- Honest trade-off: End of Life status (vs MC9S08AC32CFJE / MC9S08AC60CFJE)
Notes de conception
The single biggest program risk is lifecycle: NXP's official product page lists the MC9S08AC16CFJE as End of Life. Before committing a production build, verify remaining distributor stock (Octopart shows 8 distributors) and qualify MC9S08AC16CFJER (identical, reel-packed) plus one larger Flash variant (MC9S08AC32CFJE or MC9S08AC60CFJE) as pre-approved drop-ins. Because all S08AC family members share the LQFP-32 footprint, this qualification costs one extra layout check, not a redesign.
The MCU operates from 2.7V to 5.5V, but Flash programming/erase reliability degrades near the low end of the range - consult the MC9S08AC16 data sheet flash specifications for the minimum guaranteed programming voltage. In 5V systems, add a 0.1uF ceramic capacitor at each supply pin pair plus one bulk 4.7uF-10uF capacitor per board, placed within a few millimeters of the VDD pins. If the board includes motors or relays, isolate the MCU supply with an RC or LC filter to keep switching noise off the ADC reference.
Reserve the background debug mode (BDM) access during layout: the single-wire BKGD pin must route to a standard 6-pin BDM header for programming and non-intrusive debugging with tools such as P&E Micro Multilink. Omitting this header is the most common uncorrectable S08 layout mistake - without BDM access, reflashing requires removing the MCU. Keep the BKGD trace short and, if the header is not populated in production, still leave the footprint and test points on the PCB.
Informations de conformité
Distributor data states ROHS COMPLIANT for the QFN/LQFP package variants (DigChip listing). Other compliance attributes not stated in provided data.