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NXP Semiconductors MC908AP16CFBER
- Part No.:
- MC908AP16CFBER
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 44-QFP
- Datasheet:
-
MC908AP16CFBER.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 44QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,472
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Product details
Overview
MC908AP16CFBER from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08-core microcontroller with 16 KB on-chip Flash memory, 512 B RAM, and integrated peripherals including SCI, SPI, I²C, ADC, PWM, and TIM modules. It operates at up to 8 MHz CPU frequency, supports 2.7–5.5 V supply, and features low-power wait/stop modes for battery-powered industrial control and sensor interface applications.
For engineers reviewing the MC908AP16CFBER datasheet, MC908AP16CFBER pinout, MC908AP16CFBER application, or MC908AP16CFBER equivalent, this page delivers verified technical context, package mapping, functional specifications, and real-world use cases - all grounded in the official MC68HC908AP Family Data Sheet, Rev. 4 (Jan 2007).
Technical Context
The MC908AP16CFBER implements the HCS08 CPU core with 16-bit address space, 8-level hardware stack, and enhanced BCD arithmetic support. Its Clock Generator Module (CGM) integrates a PLL for internal clock multiplication, enabling flexible system timing from crystal, RC, or internal oscillator sources.
It includes a 10-bit, 8-channel successive-approximation ADC with programmable sample time and conversion trigger options, plus a Timer Interface Module (TIM) supporting input capture, output compare, and buffered/unbuffered PWM generation - all synchronized to the same bus clock domain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS08 8-bit architecture with 16-bit addressing and 8-level hardware stack - enables efficient embedded control with compact code footprint. |
| Flash Memory | 16 KB on-chip Flash with block protection and in-system programmability - supports field firmware updates without external programmer. |
| RAM | 512 bytes of on-chip RAM - sufficient for real-time data buffering and interrupt service routine context storage. |
| ADC Resolution | 10-bit SAR ADC with 8 input channels and configurable sample time - delivers precision analog sensing for temperature, voltage, or current monitoring. |
| Max CPU Frequency | 8 MHz bus clock (via CGM PLL or direct oscillator) - provides deterministic real-time response for motor control and communication tasks. |
| Supply Voltage | 2.7 V to 5.5 V operation - ensures compatibility with both 3.3 V and 5 V logic systems and battery-powered designs. |
| I/O Pins | 34 general-purpose I/O pins with configurable pull-ups and interrupt capability - supports direct sensor interfacing and discrete actuator control. |
Pinout & Package
MC908AP16CFBER is housed in a 44-pin QFP (Quad Flat Package) with 0.8 mm lead pitch and exposed thermal pad. The package meets JEDEC MS-026 standard and supports reflow soldering per IPC/JEDEC J-STD-020.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1–34 (Port A–D) | General-purpose bidirectional I/O | Configurable as digital inputs/outputs with software-selectable pull-ups; some support external interrupt or peripheral function multiplexing. |
| 35 (VDD) | Main power supply | Primary 2.7–5.5 V supply rail for digital core and I/O; requires local 0.1 µF ceramic bypass capacitor. |
| 36 (VSS) | Digital ground | Reference return path for digital logic and I/O circuits; must be connected to system ground plane. |
| 37 (OSC1) | Crytal oscillator input | Connects to one terminal of external crystal or ceramic resonator; internal feedback resistor enabled by CONFIG register. |
| 38 (OSC2) | Crytal oscillator output | Drives second terminal of external crystal; forms Pierce oscillator configuration with OSC1 and load capacitors. |
| 44 (RESET) | Active-low reset input | Asynchronous reset signal; asserted low resets CPU, peripherals, and registers; internal pull-up ensures valid state on power-up. |
Key Features
| Feature | Design Value |
|---|---|
| Monitor ROM (MON) | On-chip boot ROM enabling serial programming and debugging via SCI without external tools - reduces development tooling cost and simplifies field updates. |
| Computer Operating Properly (COP) | Watchdog timer with software-resettable timeout - prevents system lockup in safety-critical industrial environments. |
| Low-Voltage Inhibit (LVI) | Hardware brown-out detection with programmable trip points (2.5 V / 3.0 V / 3.5 V) - ensures reliable reset during power supply sag. |
| Multi-Master I²C Interface (MMIIC) | Full I²C protocol support including arbitration, clock stretching, and multi-master collision handling - enables robust sensor bus communication. |
| IRSCI Module | Dedicated infrared serial interface with programmable carrier frequency and modulation depth - supports remote control and IR data link applications. |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Standalone temperature/humidity node with local display, wireless telemetry, and battery backup. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, I²C sensor reads, LCD drive, and low-power sleep scheduling. Use Value: Integrated 10-bit ADC, 34 GPIO, and stop-mode current < 1 µA enable multi-year battery life with accurate environmental monitoring. |
Use Scenario: Residential HVAC control unit with user interface, relay drivers, and communication to central gateway. IC Role / Device Role / Timing Role: Real-time decision engine executing PID loop, interpreting button/keypad input, and driving relays via PWM outputs. Use Value: Buffered PWM channels and hardware TIM input capture allow precise fan speed control and zero-cross detection for AC load switching. |
| Motor Control Interface | Legacy Protocol Bridge |
|
Use Scenario: Brushless DC motor commutation module interfacing Hall sensors and MOSFET gate drivers. IC Role / Device Role / Timing Role: Timing-critical peripheral coordinator synchronizing ADC current sampling, TIM-based commutation timing, and fault shutdown signals. Use Value: Input capture with 1 µs resolution and dedicated PWM output compare registers ensure sub-millisecond phase alignment for 3-phase motor control. |
Use Scenario: RS-232 to I²C bridge converting legacy serial commands into sensor register writes for smart transducers. IC Role / Device Role / Timing Role: Protocol translator using SCI for host command parsing and MMIIC for downstream device addressing and data forwarding. Use Value: On-chip MON ROM and dual serial interfaces eliminate need for external protocol ICs or FPGA glue logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC908AP32CFBER | 32 KB Flash, same pinout and peripheral set - higher code capacity but identical package and I/O count. | Suitable where firmware complexity exceeds 16 KB or future feature expansion is anticipated. | Select when additional Flash headroom is required without PCB redesign. |
| MC9S08QG8CDTE | S08 core, 8 KB Flash, TSSOP-32 package - smaller footprint and lower cost, but reduced I/O (26 pins) and no IRSCI. | Better suited for space-constrained consumer devices with simpler peripheral needs. | Choose for cost-sensitive, low-pin-count applications where IR interface and full 34 I/O are not required. |
Compared with MC908AP32CFBER, the MC908AP16CFBER offers optimal balance of Flash size, I/O count, and legacy peripheral support (IRSCI, MMIIC) in QFP-44; versus MC9S08QG8CDTE, it provides greater I/O flexibility and specialized communication options at the expense of package size and unit cost.
Availability
MC908AP16CFBER is available at Aetrix Electronics and suitable for industrial sensor nodes, HVAC controllers, motor interface modules, and legacy protocol bridges requiring stable component supply and long-term manufacturing continuity.
Supply support for MC908AP16CFBER 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 delivering secure, scalable solutions for automotive, industrial, IoT, and communication infrastructure markets.
The MC908AP16CFBER belongs to the legacy HCS08 microcontroller family designed for cost-sensitive, low-power embedded control applications demanding high integration, field-programmable Flash, and robust peripheral sets.
FAQ
What is the maximum operating frequency of the MC908AP16CFBER?
The MC908AP16CFBER supports a maximum bus clock frequency of 8 MHz, achievable either directly from the internal oscillator or via the Clock Generator Module's PLL circuit. This frequency determines instruction execution speed, peripheral timing, and ADC conversion rate - all critical for real-time control loops in applications like motor commutation or sensor polling.
Does the MC908AP16CFBER include a hardware watchdog timer?
Yes, the MC908AP16CFBER integrates a Computer Operating Properly (COP) watchdog timer with configurable timeout periods. It must be periodically cleared by firmware to prevent system reset - a key reliability feature for unattended industrial equipment where software hangs could cause operational failure.
Can the MC908AP16CFBER perform in-system programming of its Flash memory?
Yes, the MC908AP16CFBER supports in-system programming (ISP) of its 16 KB Flash memory using the on-chip Monitor ROM (MON) accessed via the SCI interface. This allows firmware updates in the field without removing the device from the PCB or using external programming hardware.
What analog-to-digital converter capabilities does the MC908AP16CFBER provide?
The MC908AP16CFBER features a 10-bit successive-approximation ADC with 8 input channels, programmable sample time, and multiple trigger sources (software, TIM, or SCI). Its differential input mode and built-in reference options support precision measurement of sensor outputs such as thermistors or current shunts.
Is the MC908AP16CFBER pin-compatible with other members of the MC68HC908AP family?
Yes, the MC908AP16CFBER shares the same 44-pin QFP package and pin assignment with MC908AP32CFBER and MC908AP64CFBER. This allows hardware scalability - upgrading Flash size without changing PCB layout - provided configuration bits and firmware account for memory map differences.
MC908AP16CFBER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 44-QFP
- Series:
- HC08
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, IRSCI, SCI, SPI
- Peripherals:
- LED, LVD, POR, PWM
- Number of I/O:
- 32
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC908AP16CFBER FAQ
1.How can I place an order for MC908AP16CFBER through Aetrix?
Please submit a Request for Quotation (RFQ) for MC908AP16CFBER 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 MC908AP16CFBER reliable?
The price and inventory of MC908AP16CFBER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC908AP16CFBER is usually 5 days.
3.What payment methods are accepted for MC908AP16CFBER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC908AP16CFBER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC908AP16CFBER?
MC908AP16CFBER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC908AP16CFBER 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 MC908AP16CFBER?
For technical support, including MC908AP16CFBER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC908AP16CFBER requirements.
6.How does Aetrix verify that MC908AP16CFBER is sourced from the original manufacturer or authorized distributors?
All MC908AP16CFBER 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 MC908AP16CFBER meets industry standards.
7.What is the process for return or replacement of MC908AP16CFBER?
All MC908AP16CFBER units undergo pre-shipment inspection (PSI). If there is an issue with MC908AP16CFBER, 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 MC908AP16CFBER part is unused and in its original packaging.
Return procedure for MC908AP16CFBER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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