MC908AP16CFBER528 - 8-bit HC08 MCU, 16KB Flash, 8MHz | NXP
MPN: MC908AP16CFBER528 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.65 | $2.65 |
| 10 | $2.42 | $24.20 |
| 100 | $2.18 | $218.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.74 | $1,740.00 |
MC908AP16CFBER528 Overview
What is an HC08 microcontroller? An HC08 is an 8-bit CISC microcontroller family originally developed by Motorola and now maintained by NXP Semiconductors as part of the Freescale legacy portfolio. The HC08 architecture is a low-power, fully static CMOS design featuring a von Neumann memory map, on-chip Flash, RAM, timers, multiple serial interfaces, and analog peripherals. It belongs to the broader hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> HC08 family -> M68HC08AP16 sub-family. HC08 microcontrollers are widely used in industrial, automotive, and consumer applications because of their deterministic instruction set, ease of in-circuit programming, and broad legacy code base.
Key features of the MC908AP16CFBER528 include 16KB of on-chip Flash memory, a 10-bit analog-to-digital converter (ADC), an internal oscillator, multiple timers, and serial communication peripherals. The 8-bit data path operates with an internal bus clock derived from the on-chip oscillator, allowing simple clock-less designs or external crystal operation. Integrated peripherals reduce external component count, and the HC08 instruction set supports BCD arithmetic and bit-manipulation instructions useful for control loops.
The part is built on a CMOS process that balances static power consumption and analog performance. The 10-bit ADC with sample-and-hold delivers usable conversion resolution for sensor signal conditioning, while dedicated timers support PWM generation and event capture for motor or power-control loops. The integration of Flash and RAM on the same die simplifies PCB layout and improves EMI behavior compared to external-memory designs.
Typical applications for the MC908AP16CFBER528 include industrial control modules, building automation sensor nodes, automotive body electronics (non-safety), appliance control boards, and simple user-interface panels. The 16KB Flash budget accommodates moderate state machines with protocol stacks like LIN or UART-based command interfaces. The 10-bit ADC covers temperature, voltage, and current sensing without an external ADC.
When designing with this device, allocate Flash for both code vectors and a small boot/loader region if in-field firmware update is required. Ensure the ADC acquisition time respects the source impedance and add an input buffer when driving high-impedance sensors. Verify that the chosen compiler and linker support the HC08 core; legacy CodeWarrior HC08 toolchains remain available through NXP and third parties.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet - supporting faster sourcing decisions for projects that still rely on the M68HC08 platform.
Drop-in alternatives for MC908AP16CFBER528 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC908AP16CFBER528 (same form factor and footprint) — differing in ADC, Package, Core, Family, Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC908AP64CFAER528
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →MC908AP16CFBE
✅ Drop-In✓ In Stock
$13.6 / Unit
View Datasheet →MC908AP16CFBER
✅ Drop-In📋 Reference alternative (not in catalog)
MC908AP32CFBER
✅ Drop-In📋 Reference alternative (not in catalog)
MC908AP8CFBER
✅ Drop-In📋 Reference alternative (not in catalog)
MC908AP16CFBER528 Maximum Ratings & Electrical Characteristics
| Core Architecture | HC08 (CISC, 8-bit) |
| Program Memory | 16 KB Flash |
| Maximum Bus Frequency | 8 MHz |
| ADC | 10-bit, multiplexed input channels |
| Timers | Multiple 16-bit timer channels |
| Package | 44-pin QFP (10x10 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Family | M68HC08AP16 |
MC908AP16CFBER528 44-pin qfp (10x10 mm) Pin Configuration Guide
Pin configuration for MC908AP16CFBER528 (44-pin qfp (10x10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MC908AP16CFBER528.
Refer to the datasheet for full pin configuration.
Typical Applications
MC908AP16CFBER528 is suitable for 6 applications: Industrial Sensor Interface Modules, Appliance Control Boards, Building Automation Sensor Nodes, Automotive Body Electronics (Non-Safety), User Interface Panels (HMI Lite), Legacy Industrial Control Replacements.
Industrial Sensor Interface Modules
The MC908AP16CFBER528 fits industrial sensor-interface modules that need a reliable 8-bit MCU with integrated 10-bit ADC and modest Flash. With 16KB Flash, the device accommodates small protocol stacks (Modbus RTU or LIN slave) and sensor calibration tables without external memory. The 10-bit ADC handles temperature, voltage, and 4-20 mA current-loop sensing with sufficient resolution for industrial-grade transducers. The QFP-44 10x10 mm package supports hand-rework during prototyping and provides a robust industrial-assembly footprint. Designers should budget Flash for both application code and a small bootloader region if in-field firmware updates are required for long-life industrial installations.
Recommended
Appliance Control Boards
The MC908AP16CFBER528 is well-matched to white-goods and small-appliance control boards where the 8-bit HC08 core, 16KB Flash, and integrated 10-bit ADC cover the full sense/control loop. The MCU's timer channels drive TRIAC or relay-based load control for washing-machine valves, oven elements, or dishwasher pumps. The on-chip ADC reads NTC temperature sensors and motor current shunt voltages. Static CMOS design minimizes standby power, important for ENERGY STAR-rated appliances. The HC08 instruction set supports bit-manipulation common in relay-debounce and triac-zero-crossing routines that have shipped for decades in this segment.
Recommended
Building Automation Sensor Nodes
The MC908AP16CFBER528 supports building-automation sensor nodes, including HVAC zone controllers, occupancy detectors, and lighting dimmers. The HC08's deterministic interrupt response suits the timing requirements of DALI/0-10V dimming interfaces and BACnet MS/TP token passing. The 16KB Flash budget stores communication stacks and configuration parameters; the 10-bit ADC reads light-level, temperature, and humidity sensors. The QFP-44 package is easy to assemble on multi-layer building-automation PCBs that mix digital MCU logic with analog sensor signal conditioning. The NXP legacy supply chain via Rochester Electronics keeps legacy building-management installations serviceable.
Recommended
Automotive Body Electronics (Non-Safety)
Although not AEC-Q100 qualified, the MC908AP16CFBER528 has been widely deployed in automotive body-electronics sub-modules such as seat controllers, mirror adjusters, and interior lighting drivers. The 10-bit ADC reads potentiometer positions and current sense, while timers generate PWM signals for LED dimming and motor speed control. The 16KB Flash holds LIN slave stacks for body-domain networks. For new automotive designs, AEC-Q100-qualified S12 or Kinetis KE parts are recommended; the MC908AP16CFBER528 continues to serve legacy service and aftermarket needs.
Recommended
User Interface Panels (HMI Lite)
The MC908AP16CFBER528 fits low-cost HMI panels that drive 7-segment displays, keypads, and rotary encoders. The 16KB Flash holds menu state machines and button-debounce logic; the 10-bit ADC reads analog inputs from potentiometers or resistive touch overlays. GPIO ports drive LED indicators and scan matrix keypads. The HC08's BCD-arithmetic and bit-handling instructions simplify the code for multiplexed display refresh and switch-matrix scanning. The QFP-44 footprint fits the multi-layer PCBs typical of small user-interface panels.
Recommended
Legacy Industrial Control Replacements
The MC908AP16CFBER528 is a primary candidate for legacy industrial control replacements where M68HC05 or M68HC11 devices have gone obsolete. The HC08 family offers instruction-set and toolchain compatibility with older M68HC05 designs while adding Flash reprogrammability. The 10-bit ADC supports replacement of separate analog front-ends, lowering BOM cost. The 16KB Flash matches firmware originally written for HC05 16KB OTP/ROM parts, enabling direct code reuse. For long-term maintenance and refurbishment programs, Rochester Electronics maintains stock for service contracts.
Recommended
Recommended Products Summary
Engineering reference data for MC908AP16CFBER528 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC908AP64CFAER528 | MC908AP16CFBE | MC908AP16CFBER | MC908AP32CFBER | MC908AP8CFBER |
|---|---|---|---|---|---|---|
| Package | QFP-44 (10x10 mm) | QFP-44 (10x10 mm) - same | QFP-44 (10x10 mm) - same | QFP-44 (10x10 mm) - same | QFP-44 (10x10 mm) - same | QFP-44 (10x10 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HC08 (8-bit) | HC08 (8-bit) | HC08 (8-bit) | HC08 (8-bit) | HC08 (8-bit) | HC08 (8-bit) |
| Flash Memory | 16 KB | 64 KB | 16 KB | 16 KB | 32 KB | 8 KB |
| Maximum Bus Frequency | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
| RoHS Compliance | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Compact 16KB Flash position in the M68HC08AP16 family (vs MC908AP64CFAER528)
- Standard tape-and-reel packaging with NXP lead-finish code 528 (vs MC908AP16CFBE)
- Drop-in compatible with the entire AP8/AP16/AP32/AP64 family (vs MC908AP8CFBER)
Design Notes
The HC08 core requires a stable VDD with a decoupling capacitor placed within 5 mm of each power pin. Use a 100 nF X7R ceramic in parallel with a 4.7 uF bulk capacitor on the main VDD rail. For battery-backed operation, ensure VDD ramp-up meets the HC08 minimum voltage-rise time specified in the datasheet. [DATA_NEEDED: minimum VDD operating voltage] is not in the verified distributor data; consult the M68HC908AP16 datasheet before finalizing the power tree.
QFP-44 10x10 mm packages have 0.8 mm pitch leads; route signals on inner layers to escape the fine-pitch perimeter. Use a 4-layer stack-up with a continuous ground plane directly under the MCU to minimize EMI. Keep ADC analog traces short and routed away from PWM/timer outputs to reduce coupling into the analog reference. Place the external oscillator (if used) within 5 mm of the OSC pins and guard it with a ground ring.
Do not assume 16KB Flash remains fully usable for application code; the HC08 reserves vectors and a Flash configuration field at the top of the address space, leaving slightly less than 16 KB for user code. [DATA_NEEDED: exact user-Flash size after reserved regions] is not in the provided distributor data - verify with the M68HC908AP16 memory map before committing to firmware size. Use the HC08 inhibit/Flash-protection bits to secure bootloader regions per application notes.
The 10-bit ADC achieves best results when the source impedance is below 10 kohm; add an op-amp buffer for high-impedance sensors such as small NTC thermistor dividers. Use a dedicated AGND pin and route analog/digital grounds in a star configuration back to the MCU. Decouple the ADC reference pin with 100 nF plus 1 uF ceramic if an external reference is used.
Compliance Information
RoHS compliant per LCSC product listing. Not AEC-Q100 qualified - not suitable for new automotive safety designs. REACH, halogen-free, and conflict-minerals declarations were not present in the verified distributor data and remain unknown.
