MC9S08PT32VLH - 8-bit 20MHz S08 MCU, 32KB Flash, 64-LQFP | NXP
MPN: MC9S08PT32VLH ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.78 | $3.78 |
| 10 | $3.36 | $33.60 |
| 100 | $2.78 | $278.00 |
| 500 | $2.42 | $1,210.00 |
| 1,000 | $2.05 | $2,050.00 |
MC9S08PT32VLH Overview
An 8-bit microcontroller is a small computing device that integrates a CPU, memory, and programmable peripherals on a single die. The S08 core is a Harvard-style CISC architecture widely used in automotive body electronics, white goods, and industrial sensor interfaces. The 8-bit MCU belongs to the broader category of microcontrollers -> embedded processors -> integrated circuits -> semiconductors, and is typically selected when cost, deterministic behavior, and low power outweigh the need for 32-bit processing throughput.
Key features of the MC9S08PT32VLH include 32 KB of embedded Flash with security, 256 bytes of EEPROM for data storage, an on-chip touch-sensing interface (TSI) supporting up to 16 electrodes, an integrated motor-control FlexTimer with PWM outputs, a multi-channel 12-bit ADC, and multiple serial interfaces (SCI, SPI, I2C). The wide operating voltage range (2.7 V to 5.5 V) and low-power modes with wake-up sources make it suitable for battery- and line-powered applications alike.
Architecturally, the part uses NXP's HCS08 instruction set with a background-debug controller (BDC) for in-circuit programming and a watchdog timer for safety-critical tasks. The combination of an internal clock source with active generator, hardware CRC, and built-in security/lock features provides a robust baseline for connected or field-deployed systems.
Typical applications include capacitive touch user interfaces (TSI), small BLDC and brushed DC motor controllers, home appliances, building automation nodes, and automotive body controllers. The AEC-Q100-qualified MC9S08PT32 variants are commonly selected for door modules, seat controls, and HVAC panels. The integrated EEPROM eliminates external memory in many designs.
When designing with this device, allocate enough PCB area for the 64-LQFP footprint (0.5 mm pitch) and place decoupling capacitors adjacent to each VDD/VSS pair. The TSI electrodes should be routed to minimize trace-to-trace coupling and shield-to-electrode capacitance for reliable touch sensing.
This page synthesizes distributor pricing, parametric drop-in alternatives, and engineering design notes that complement the manufacturer datasheet. Information gain beyond the datasheet includes a structured comparison table and selection guide.
Drop-in alternatives for MC9S08PT32VLH — 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 MC9S08PT32VLH (same form factor and footprint) — differing in Package, Core, Number of I/O, Program Memory Size, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08PT32VLC
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC9S08PT60VLH
✅ Drop-In✓ In Stock
$3.65 / Unit
View Datasheet →MC9S08PA32AVLH
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08DV60AMLH
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →MC9S08MM32VLH
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →MC9S08PT32VLH Maximum Ratings & Electrical Characteristics
| Core | S08 (HCS08) |
| Data Bus Width | 8 bit |
| Maximum Clock Frequency | 20 MHz |
| Program Memory Size | 32 KB Flash |
| EEPROM Size | 256 B |
| Package | 64-LQFP (10x10 mm), 0.5 mm pitch |
| Mounting Type | Surface Mount |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature Range | -40 C to +105 C |
| ADC | 12-bit, multi-channel |
| Touch Sensing Interface (TSI) | Yes, up to 16 electrodes |
| Motor Control FlexTimer (FTM) | Yes, with PWM |
| Communication Interfaces | SCI (UART), SPI, I2C |
| Watchdog Timer | Yes (COP) |
| Background Debug Controller (BDC) | Yes |
| Internal Clock Source | Yes (with active generator) |
| RoHS Status | Compliant |
MC9S08PT32VLH 64-lqfp (10x10 mm), 0.5 mm pitch Pin Configuration Guide
Pin configuration for MC9S08PT32VLH (64-lqfp (10x10 mm), 0.5 mm pitch 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 MC9S08PT32VLH.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08PT32VLH is suitable for 6 applications: Capacitive Touch User Interface (TSI), Small BLDC / Brushed DC Motor Control, Home Appliance Control Board, Building Automation Sensor Node, Automotive Body Controller (NRND/AEC-Q100 variants), Industrial Sensor and Actuator Interface.
Capacitive Touch User Interface (TSI)
The MC9S08PT32VLH's on-chip Touch Sensing Interface (TSI) supports up to 16 electrodes, eliminating the need for an external touch controller and reducing BOM cost in user-interface modules. Its 20 MHz S08 core delivers fast electrode-scan response, while 32 KB Flash accommodates state-machine plus communication firmware for I2C/SPI link to a host MCU. The 64-LQFP package exposes enough GPIO for backlight PWM and LED indicators alongside TSI channels, and the 2.7-5.5 V supply range simplifies sharing a rail with capacitive sensors.
Recommended
Small BLDC / Brushed DC Motor Control
Integrated FlexTimer (FTM) with PWM outputs, hardware dead-time insertion, and a 12-bit ADC for back-EMF sensing make the MC9S08PT32VLH well suited for small brushless DC and brushed DC motor controllers up to a few hundred watts. The S08 core runs the sensorless commutation algorithm at deterministic cycle times, while the 32 KB Flash holds state-machine code plus tuning tables. The 64-LQFP exposes dedicated FTM channels and ADC inputs that map cleanly to a 3-phase half-bridge power stage.
Recommended
Home Appliance Control Board
Washing machines, dishwashers, microwave ovens, and small kitchen appliances use 8-bit MCUs to drive displays, relays, and triac-based heater controls. The MC9S08PT32VLH provides 32 KB Flash for user-interface and safety logic, hardware CRC for IEC 60730 class-B compliance, and the 12-bit ADC to read NTC temperature sensors. The -40 to +105 C operating range covers the appliance ambient envelope, and the integrated 256-byte EEPROM stores user presets without an external memory chip.
Recommended
Building Automation Sensor Node
Lighting controllers, occupancy sensors, and HVAC damper actuators benefit from the MC9S08PT32VLH's low-power stop modes, SCI/SPI interfaces for networked sensors, and 12-bit ADC for environmental measurements. The TSI can read capacitive proximity sensors at very low standby current, while the watchdog and hardware CRC satisfy fault-tolerant networked-node requirements. The 32 KB Flash accommodates Zigbee/BLE-host command firmware or Modbus-over-RS485 stacks.
Recommended
Automotive Body Controller (NRND/AEC-Q100 variants)
AEC-Q100-qualified S08PT parts are deployed in door modules, seat-position controllers, and HVAC panels where the MC9S08PT32-class silicon handles switch-matrix scanning, LED driver control, and LIN-bus communication. The 12-bit ADC reads position sensors, the 32 KB Flash stores calibration tables and power-mode logic, and the integrated EEPROM retains user preferences across battery disconnects. The -40 to +105 C range covers cabin thermal exposure.
Recommended
Industrial Sensor and Actuator Interface
Factory-floor sensor-interface boards and small PLC I/O modules rely on the MC9S08PT32VLH's analog and digital peripherals: the 12-bit ADC for 4-20 mA loop measurements, FTM PWM for proportional valves, and SCI for RS-485 Modbus communication. The 32 KB Flash fits deterministic control firmware with self-test routines, while the hardware CRC supports IEC 61508 safety functions on simple SIL-1 paths. The wide supply range accepts 24 V industrial rails after external regulation.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08PT32VLH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08PT60VLH | MC9S08PA32AVLH | MC9S08DV60AMLH | MC9S08MM32VLH |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-LQFP (10x10 mm) | 64-LQFP - same | 64-LQFP - same | 64-LQFP - same | 64-LQFP - same |
| Core | S08 (HCS08) 8-bit | S08 8-bit | S08 8-bit | S08 8-bit | S08 8-bit |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 40 MHz |
| Flash Memory | 32 KB | 60 KB | 32 KB | 60 KB | 32 KB |
| Touch Sensing Interface (TSI) | Yes, up to 16 electrodes | Yes, up to 16 electrodes | No | Yes | No |
| Communication Interfaces | SCI, SPI, I2C | SCI, SPI, I2C | SCI, SPI, I2C | SCI, SPI, I2C, CAN | SCI, SPI, I2C |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +85 C | -40 C to +125 C | -40 C to +105 C |
Key Differentiators
- Integrated Touch Sensing Interface (TSI) with up to 16 electrodes (vs MC9S08PA32AVLH)
- Balanced 32 KB Flash for value-tier designs (vs MC9S08PT60VLH)
- On-chip EEPROM for non-volatile data storage (vs MC9S08DV60AMLH)
Design Notes
Allocate copper area under the exposed pad region of the 64-LQFP (where present) for thermal dissipation and connect the central pad to a digital ground. Place 100 nF decoupling capacitors within 3 mm of each VDD/VSS pair; add a bulk 4.7 uF capacitor near the regulator input. Keep TSI electrode traces short and guarded with a ground hatch to minimize parasitic capacitance.
Use the internal clock source with active generator for low-power wait and stop modes; switch to the FLL-engaged internal reference only when peripheral accuracy (UART, PWM) demands it. Configure the voltage regulator (PMC) for normal and low-power modes explicitly in firmware to avoid unintended current draw of 100-300 uA above the datasheet floor.
Do not route the TSI electrode traces over or near switching power traces; capacitive coupling can inject noise and degrade touch sensitivity. When using the FlexTimer for motor PWM, enable hardware dead-time insertion to prevent shoot-through, and ensure the ADC sample window is positioned outside the PWM switching edge to avoid coupling into current-sense measurements.
Compliance Information
RoHS compliant per NXP product page. AEC-Q100 qualification applies to the S08PT32 automotive variants (V suffix parts); standard VLH is industrial grade. Confirm exact qualification status with NXP for your specific ordering code.
