MC9S08PA32VQH - 8-bit S08 MCU 32KB Flash QFP-64 | NXP
MPN: MC9S08PA32VQH ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.65 | $3.65 |
| 10 | $3.2 | $32.00 |
| 100 | $2.78 | $278.00 |
| 500 | $2.41 | $1,205.00 |
| 1,000 | $2.1 | $2,100.00 |
MC9S08PA32VQH Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one silicon die. The 8-bit S08 CISC core executes a complex instruction set targeting cost-sensitive, deterministic embedded applications. Within the broader taxonomy, this device sits as: microcontroller -> 8-bit MCU -> S08 family -> S08PA sub-family -> power-conscious 5V general-purpose tier. The S08PA family reuses the legacy S08 core, toolchain, and IP, allowing easy migration from earlier 8-bit S08 products while integrating modern analog and timer peripherals.
Key features of the MC9S08PA32VQH include on-chip EEPROM, an analog-to-digital converter (ADC), an analog comparator, and a motor-control FlexTimer. The device is positioned as a simple yet powerful MCU with excellent EFT/ESD performance, making it suitable for harsh industrial and appliance environments. The integrated FlexTimer is specifically designed for motor-control PWM generation, while the analog comparator and ADC support mixed-signal feedback loops.
The S08PA architecture pairs the well-known HCS08 instruction set with an efficient peripheral set, allowing developers to leverage existing S08 code, libraries, and development tools. The 64-pin PQFP package offers a generous pin count for applications that need multiple PWM channels, communication buses, and analog inputs. The device supports both 3.3V and 5V operation, simplifying integration into legacy 5V systems as well as modern 3.3V designs.
Typical applications include BLDC and brushed DC motor control, home appliances, industrial control panels, HVAC fan control, low-end lighting controllers, and small-form-factor sensor interfaces. Its combination of EEPROM, ADC, analog comparator, and FlexTimer is well matched to closed-loop motor control and analog-front-end analog measurement tasks.
When designing with this part, verify that the current firmware and toolchain versions still support the S08PA family given the NRND status. Confirm long-term supply through NXP or authorized distributors before committing to new designs.
This page synthesizes distributor pricing, drop-in alternatives from the S08PA pin-compatible family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for MC9S08PA32VQH — 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 MC9S08PA32VQH (same form factor and footprint) — differing in Package, ADC, Core, Program Memory (Flash), Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08PA32AVQH
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08PA16VTJ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.18 / Unit
View Datasheet →MC9S08PA8VLC
✅ Drop-In✓ In Stock
$1.84 / Unit
View Datasheet →MC9S08PT32VLF
✅ Drop-In✓ In Stock
$3.65 / Unit
View Datasheet →MC9S08AC8MFGE
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →S9S08AW32E5MPUE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.95 / Unit
View Datasheet →MC9S08PA32VQH Maximum Ratings & Electrical Characteristics
| Core Architecture | S08 (8-bit CISC, HCS08 instruction set) |
| Program Memory (Flash) | 32 KB |
| On-chip EEPROM | Yes (data EEPROM integrated) |
| Operating Voltage | 3.3 V / 5 V |
| Package | 64-pin PQFP (QFP-64) |
| Pin Count | 64 |
| Mounting Type | Surface Mount |
| ADC | Yes (integrated) |
| Analog Comparator | Yes (integrated) |
| Motor Control FlexTimer | Yes (PWM timer module) |
| Series | S08PA |
| Family | MC9S08 |
| Lifecycle Status | NRND (Not Recommended for New Designs) |
MC9S08PA32VQH 64-pin pqfp (qfp-64) Pin Configuration Guide
Pin configuration for MC9S08PA32VQH (64-pin pqfp (qfp-64) 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 MC9S08PA32VQH.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08PA32VQH is suitable for 6 applications: BLDC and Brushed DC Motor Control, Home Appliance Control Boards, HVAC Fan and Blower Control, Industrial Control Panels, Low-End LED Lighting Controllers, Small Sensor Interface Modules.
BLDC and Brushed DC Motor Control
The MC9S08PA32VQH is purpose-designed for low-cost motor control: its integrated motor-control FlexTimer generates the complementary PWM signals needed to drive a three-phase inverter or an H-bridge, while the on-chip ADC samples back-EMF or shunt-current feedback and the analog comparator implements hardware cycle-by-cycle current limiting. With 32 KB of Flash and on-chip EEPROM for parameter storage, designers can implement sensorless or sensored BLDC algorithms, soft-start ramps, and fault handling entirely in firmware. The 5V-tolerant I/O simplifies interface to traditional gate drivers, and the strong EFT/ESD performance of the S08PA family suits appliances with switching inductive loads.
Recommended
Home Appliance Control Boards
The MC9S08PA32VQH is widely used in home appliances such as washing machines, dishwashers, range hoods, and small kitchen appliances. Its 32 KB Flash accommodates user-interface state machines plus motor-control firmware, while on-chip EEPROM stores calibration data, error logs, and user preferences across power cycles. The combination of ADC channels for temperature and water-level sensing, analog comparator for safety thresholds, and the FlexTimer for pump/motor drivers allows the MCU to consolidate what previously required multiple chips. The PQFP-64 footprint gives enough GPIO for keypads, displays, and relay drivers on a single board.
Recommended
HVAC Fan and Blower Control
In HVAC fan, and indoor-blower applications, the MC9S08PA32VQH drives multi-speed AC or BLDC fans with closed-loop RPM control. The FlexTimer outputs the PWM for the power stage, the ADC reads tachometer or back-EMF signals, and the analog comparator provides hardware overcurrent protection independent of firmware latency. On-chip EEPROM preserves configuration across power cycles, while the 5V analog front-end simplifies interface to legacy HVAC sensor networks. The S08PA family's strong EFT/ESD immunity handles the electrically noisy environment of HVAC systems with long motor wiring.
Recommended
Industrial Control Panels
Industrial control panels benefit from the MC9S08PA32VQH's combination of analog and digital peripherals, 5V tolerance, and robust EFT/ESD performance. The MCU can read 4-20 mA or 0-10 V analog inputs through its ADC, drive relays and contactors via GPIO, and run a local user interface with LEDs. The 32 KB Flash accommodates protocol stacks, while the FlexTimer can be repurposed for stepper-motor indexing or solenoid PWM. NXP's long-term support of the S08 platform and the part's deterministic CISC core make it well suited to industrial-grade firmware with strict timing requirements.
Recommended
Low-End LED Lighting Controllers
The MC9S08PA32VQH can drive dimmable LED luminaires by generating PWM dimming signals with the FlexTimer and reading ambient-light sensors with the ADC. On-chip EEPROM stores calibration and trim values for accurate CCT and brightness curves, while the analog comparator enables hardware over-temperature protection by monitoring an NTC thermistor. The 5V-tolerant GPIOs drive constant-current LED driver ICs directly. The compact 64-pin PQFP footprint fits within the small form factor of downlights and track lights.
Recommended
Small Sensor Interface Modules
For small sensor-interface modules in industrial IoT edge nodes, the MC9S08PA32VQH provides local signal conditioning, ADC sampling, and EEPROM-backed calibration storage. The on-chip analog comparator implements threshold-based alarms without CPU involvement, reducing firmware complexity. Communication back to a controller can be implemented in firmware using the GPIO or any available timer-based UART. The S08PA family's robust ESD performance makes it suitable for outdoor sensor installations where cable-borne transients are common.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08PA32VQH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08PA32AVQH | MC9S08PA16VTJ | MC9S08PA8VLC | MC9S08PT32VLF | S9S08AW32E5MPUE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | QFP-64 (PQFP) | QFP-64 - same | TSSOP-20 - different | LQFP-32 - different | LQFP-48 - different | LQFP-64 - similar pin count, different package style |
| Core Architecture | 8-bit S08 CISC | 8-bit S08 CISC - same | 8-bit S08 CISC - same | 8-bit S08 CISC - same | 8-bit S08PT CISC - same family, enhanced peripherals | 8-bit S08AW CISC - same |
| Program Flash | 32 KB | 32 KB - same | 16 KB (-50%) | 8 KB (-75%) | 32 KB - same | 32 KB - same |
| Operating Voltage | 3.3 V / 5 V | 3.3 V / 5 V - same | 3.3 V / 5 V - same | 3.3 V / 5 V - same | 3.3 V / 5 V - same | 3.3 V / 5 V - same |
| Motor Control FlexTimer | Yes | Yes - same | Yes - same | Yes - same | Yes (enhanced) - same | Yes - same |
| ADC | Yes (integrated) | Yes - same | Yes - same | Yes - same | Yes (more channels) - same | Yes - same |
| Lifecycle Status | NRND | Active or NRND - confirm | Active | Active | Active (successor family) | Active |
Key Differentiators
- Only S08PA 32 KB part in 64-pin PQFP (vs MC9S08PA16VTJ)
- Motor-control FlexTimer integrated (vs MC9S08PT32VLF)
- On-chip EEPROM for parameter storage (vs MC9S08AW60CFUE)
Design Notes
Because the MC9S08PA32VQH is marked NRND, do not use it for new designs unless you have a confirmed long-term supply agreement with NXP or an authorized distributor. For new designs, prefer active members of the same S08PA family (e.g., 32 KB parts in different packages) or the pin-compatible S08PT successor family. Existing designs should qualify a second-source part now to avoid last-time-buy risk.
The MC9S08PA32VQH supports both 3.3 V and 5 V operation. Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair, and add a bulk 10 uF tantalum or ceramic cap near the regulator output. If the analog supply (VDDA) is separate from VDD, decouple it with its own 100 nF cap; sharing VDD and VDDA noise degrades ADC accuracy. Use a star-ground topology where the MCU ground pin is the single tie point to the ground plane.
Route ADC inputs away from PWM and digital switching signals. Use a guarded analog ground for ADC reference capacitor return. Keep the FlexTimer PWM traces short and symmetric to minimize dead-time mismatch in three-phase motor inverters. The 64-pin PQFP package allows generous routing, but the exposed pad (if present on your specific package variant) should be soldered to the ground plane for thermal dissipation.
The S08PA family offers excellent EFT/ESD performance per NXP's qualification data, but external protection is still recommended for cables and connectors that exit the board. Add TVS diodes on external analog and digital lines. For motor-drive outputs, use RC snubbers or gate-driver shoot-through protection to keep noise from coupling into the analog comparator and corrupting current-limit decisions.
Compliance Information
Compliance status for RoHS, REACH, lead-free, and halogen-free was not present in the verified web data and is set to "unknown". NXP's general policy is RoHS and REACH compliance for S08PA family parts; confirm on the official NXP product page before committing to a design.
