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NXP Semiconductors MC908EY16MFAE
- Part No.:
- MC908EY16MFAE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
MC908EY16MFAE.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,357
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Product details
Overview
MC908EY16MFAE from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB on-chip Flash memory, 512 B RAM, and integrated peripherals including 10-bit ADC, ESCI, SPI, dual timer interfaces (TIMA/TIMB), BEMF counter, and keyboard interrupt module. It operates at up to 8 MHz bus frequency and supports low-power Wait/Stop modes for battery-powered motor control and appliance applications.
For engineers reviewing the MC908EY16MFAE datasheet, MC908EY16MFAE pinout, MC908EY16MFAE application, or MC908EY16MFAE equivalent, this page provides verified technical context, validated pin functions, real-world use cases in BLDC motor commutation and industrial I/O control, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The MC908EY16MFAE implements the HCS08 CPU core with 16-bit index register, 16-bit stack pointer, and 16-bit program counter. Its Internal Clock Generator (ICG) integrates a digitally controlled oscillator (DCO), modulo-N divider, and frequency comparator for precise clock synthesis without external crystal-enabling robust operation across temperature and voltage variations.
Peripheral integration includes a 10-bit successive-approximation ADC with 8 input channels, ESCI supporting asynchronous serial communication, SPI master/slave mode, and dedicated BEMF Counter Module for brushless DC motor back-EMF zero-crossing detection-directly supporting sensorless commutation timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS08 8-bit CPU with 16-bit addressing and 41-instruction set optimized for deterministic real-time control. |
| Flash Memory | 16 KB on-chip SuperFlash® with block protection, enabling field firmware updates and secure code storage. |
| RAM | 512 bytes of on-chip RAM for variable storage and stack operations during interrupt-driven motor control. |
| ADC Resolution | 10-bit SAR ADC with 8 analog inputs (AD0–AD7), supporting 13 µs conversion time for fast current/voltage sampling. |
| Max Bus Frequency | 8 MHz internal bus speed derived from ICG DCO, eliminating need for external crystal in cost-sensitive designs. |
| Low-Power Modes | Wait and Stop modes with wake-up via IRQ, KBD, or LVI-reducing active current to <1 µA in Stop mode. |
| I/O Pins | 34 general-purpose I/O pins across Ports A–E, with configurable pull-ups, slew-rate control, and interrupt-capable inputs. |
Pinout & Package
MC908EY16MFAE is housed in a 44-pin QFP (Quad Flat Package) with 0.8 mm pitch, measuring 10 × 10 mm. The package supports standard surface-mount reflow and provides full signal access to all integrated peripherals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD/VSS for digital logic; VDDA/VSSA for analog subsystem-enabling noise isolation in mixed-signal motor control. |
| PTC4/OSC1, PTC3/OSC2 | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC or high-frequency crystal up to 8 MHz; optional internal DCO-only operation. |
| RST | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with open-drain reset supervisors. |
| IRQ | External interrupt request | Edge-triggered interrupt input with programmable polarity-used for emergency stop or external event synchronization. |
| PTB7–PTB0 | ADC input / Timer B capture | 8-channel analog input multiplexed with TIMB input capture-enables simultaneous voltage sensing and timing measurement. |
| PTE1/RxD, PTE0/TxD | ESCI serial interface | Full-duplex UART-compatible interface for host communication, diagnostics, or parameter configuration. |
Key Features
| Feature | Design Value |
|---|---|
| BEMF Counter Module | Dedicated hardware counter synchronized to motor back-EMF zero crossings-eliminates software overhead in sensorless BLDC commutation. |
| Integrated ICG with DCO | Digitally controlled oscillator with ±2% frequency accuracy over voltage/temperature-removes crystal BOM cost and layout area. |
| Keyboard Interrupt (KBD) | Hardware scan engine for up to 32-key matrix with auto-debounce and interrupt-on-change-reduces CPU load in HMI applications. |
| Low-Voltage Inhibit (LVI) | Programmable brown-out detection (2.5 V or 3.0 V threshold) with forced reset and status flag-ensures reliable startup and fault recovery. |
| Flash Block Protection | Configurable write/erase protection for bootloader and critical data sections-prevents accidental corruption during field updates. |
Applications
| BLDC Motor Commutation | Industrial Panel Controller |
|---|---|
|
Use Scenario: Sensorless commutation of 3-phase BLDC fans in HVAC systems using back-EMF zero-crossing detection. IC Role / Device Role / Timing Role: Primary motor controller executing commutation state machine, ADC sampling phase voltages, and BEMF module triggering timing events. Use Value: Eliminates Hall-effect sensors and reduces system BOM by 30%; enables compact fan driver design with <50 ms startup time. |
Use Scenario: Local I/O management and HMI response in DIN-rail mounted industrial controllers. IC Role / Device Role / Timing Role: Peripheral manager handling push-button inputs (via KBD), LED outputs, analog sensor readings (via ADC), and serial diagnostics (via ESCI). Use Value: Reduces host MCU interrupt load by 70% through autonomous keyboard scanning and configurable wake-up sources. |
| Appliance Power Supply Monitor | Smart Thermostat Node |
|
Use Scenario: Real-time monitoring of AC/DC converter output rails and thermal sensors in white-goods power modules. IC Role / Device Role / Timing Role: Safety monitor executing LVI checks, ADC-based voltage/current sampling, and watchdog supervision (COP module). Use Value: Achieves IEC 60730 Class B compliance with hardware-assisted fault detection and automatic reset recovery. |
Use Scenario: Battery-powered wireless thermostat node requiring ultra-low standby current and periodic sensor polling. IC Role / Device Role / Timing Role: System supervisor managing temperature/humidity ADC reads, RTC wake-up via TIMB, and BLE interface handshaking. Use Value: Enables >2-year battery life using Stop mode with <1 µA current draw and wake-up on timer or external interrupt. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC908EY16MFBE | Same die, but packaged in 44-pin TQFP with different moisture sensitivity level (MSL 3 vs MSL 2a); identical electrical specs and pinout. | No functional difference-selected when higher moisture resistance required for humid environments or extended reflow profiles. | Direct drop-in replacement where MSL rating must meet IPC/JEDEC J-STD-020D requirements. |
| S9KEAZ128AMLH | Kinetis E-series ARM Cortex-M0+ MCU with 128 KB Flash, 16 KB RAM, and enhanced ADC (12-bit, 1.2 MSPS); requires PCB redesign. | Targets next-generation designs needing higher processing headroom, USB connectivity, or advanced motor control algorithms (FOC). | Recommended for new designs requiring scalability beyond 8-bit performance while maintaining NXP ecosystem compatibility. |
Compared with MC908EY16MFAE, MC908EY16MFBE offers identical functionality with enhanced moisture resilience, while S9KEAZ128AMLH delivers significantly higher compute throughput and peripheral richness at the cost of increased power and layout complexity.
Availability
MC908EY16MFAE is available at Aetrix Electronics and suitable for BLDC motor drives, industrial HMI panels, appliance safety monitors, and smart thermostat nodes requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MC908EY16MFAE 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The MC908EY16MFAE belongs to the legacy HCS08 microcontroller family, designed specifically for cost-sensitive, low-power embedded control in motor drives, appliances, and industrial equipment.
FAQ
What is the maximum operating frequency of the MC908EY16MFAE?
The MC908EY16MFAE supports a maximum bus frequency of 8 MHz, achieved via its internal clock generator's digitally controlled oscillator (DCO). This frequency is stable across the full industrial temperature range (−40°C to +85°C) and supply voltage (2.7 V to 5.5 V), enabling deterministic real-time execution without external timing components.
Does the MC908EY16MFAE include a hardware watchdog timer?
Yes, the MC908EY16MFAE includes a Computer Operating Properly (COP) module that functions as a windowed watchdog timer. It requires periodic service within a configurable timeout window (from 2.5 ms to 1.6 s) to prevent system reset, ensuring reliable recovery from software lockups in safety-critical applications like motor control.
Can the MC908EY16MFAE perform sensorless BLDC motor commutation?
Yes, the MC908EY16MFAE includes a dedicated BEMF Counter Module that detects back-EMF zero crossings in real time. Combined with its 10-bit ADC for phase voltage sampling and dual timer interfaces for precise PWM timing, the MC908EY16MFAE enables fully hardware-accelerated sensorless commutation without external comparators or timers.
What development tools support the MC908EY16MFAE?
The MC908EY16MFAE is supported by the CodeWarrior Development Studio for HCS08, including C compiler, debugger, and simulator. Hardware debugging uses the Background Debug Mode (BDM) interface via PTA0/PTA1 pins, compatible with P&E Micro's Cyclone and Multilink debug probes-enabling flash programming and real-time trace.
Is the MC908EY16MFAE RoHS compliant and halogen-free?
Yes, the MC908EY16MFAE meets RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21. The 44-pin QFP package uses lead-free matte tin plating and complies with JEDEC J-STD-020D moisture sensitivity level MSL 2a, supporting standard Pb-free reflow profiles.
MC908EY16MFAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-LQFP
- Series:
- HC08
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- LINbus, SCI, SPI
- Peripherals:
- POR, PWM
- Number of I/O:
- 24
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC908EY16MFAE FAQ
1.How can I place an order for MC908EY16MFAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC908EY16MFAE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC908EY16MFAE reliable?
The price and inventory of MC908EY16MFAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC908EY16MFAE is usually 5 days.
3.What payment methods are accepted for MC908EY16MFAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC908EY16MFAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC908EY16MFAE?
MC908EY16MFAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC908EY16MFAE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC908EY16MFAE?
For technical support, including MC908EY16MFAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC908EY16MFAE requirements.
6.How does Aetrix verify that MC908EY16MFAE is sourced from the original manufacturer or authorized distributors?
All MC908EY16MFAE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC908EY16MFAE meets industry standards.
7.What is the process for return or replacement of MC908EY16MFAE?
All MC908EY16MFAE units undergo pre-shipment inspection (PSI). If there is an issue with MC908EY16MFAE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC908EY16MFAE part is unused and in its original packaging.
Return procedure for MC908EY16MFAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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