MC9S08AC16CFJE - S08 8-bit MCU 40MHz 16KB Flash LQFP-32 | NXP
MPN: MC9S08AC16CFJE ✗ Tapus ng BuhayMC9S08AC16CFJE Ulas
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.
Mga alternatibo na pwedeng ilagay na MC9S08AC16CFJE — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok MC9S08AC16CFJE (parehas na form factor at footprint) — pagkakaiba sa Package, RoHS Status, ADC, Core, Family.
MC9S08AC16CFJER
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
MC9S08AC32CFJE
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →MC9S08AC60CFJE
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
MC9S08AC8CFJE
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →MC9S08AC16CFJE Mga Pinakamataas na Rating at Electrical Characteristics
| 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 |
| Hanay ng Temperature na Operasyon | -40C to +85C |
| Package Type | 32-LQFP (7x7 mm) |
| Terminal Form | Gull Wing |
| Uri ng Pagpapasok | Surface Mount |
| Product Family | Flexis AC series (S08AC) |
| Tindminan RoHS | RoHS Compliant |
| Katayuan ng Lifecycle | End of Life (per NXP product page) |
Gabay sa Pin Configuration ng MC9S08AC16CFJE 32-lqfp (7x7 mm)
Pin configuration para sa MC9S08AC16CFJE (32-lqfp (7x7 mm) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa MC9S08AC16CFJE.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
MC9S08AC16CFJE ay nararapat para sa 6 aplikasyons: 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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
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.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for MC9S08AC16CFJE — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | 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 |
Pangunahing mga Pagkakaiba
- Flexis migration path (kumpara saMicrochip PIC16F series)
- Wide 2.7V to 5.5V supply range (kumpara sa3.3V-only 8-bit MCUs)
- Honest trade-off: End of Life status (kumpara saMC9S08AC32CFJE / MC9S08AC60CFJE)
Talaan ng Disenyo
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.
Impormasyon ng Pagsunod sa Kautusan
Distributor data states ROHS COMPLIANT for the QFN/LQFP package variants (DigChip listing). Other compliance attributes not stated in provided data.