MC9S08PT32VLC-FR - 8-bit S08 MCU 32KB Flash LQFP-32 | NXP
MPN: MC9S08PT32VLC-FR ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.77 | $2.77 |
| 10 | $2.5 | $25.00 |
| 100 | $2.18 | $218.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.72 | $1,720.00 |
MC9S08PT32VLC-FR Overview
An 8-bit microcontroller (MCU) is an integrated processor that combines a CPU, non-volatile program memory, RAM, and a set of on-chip peripherals in a single package. MCUs sit at the bottom of the embedded-processor hierarchy (8-bit MCU -> 16-bit MCU -> 32-bit MCU -> microprocessor) and are typically selected for cost-sensitive or deterministic control tasks where software complexity is moderate and power budget is tight. The S08 family is Freescale/NXP's 5V-tolerant HCS08 derivative line, optimized for automotive-grade electromagnetic robustness (EFT/ESD) and pin-compatibility across the S08P sub-family.
Key features include 2.7 V to 5.5 V single-supply operation, an internal oscillator, a 16-channel 12-bit ADC, LVD/POR/Watchdog, and PWM outputs. Connectivity peripherals cover I2C, SPI, UART/USART and LIN-bus, making the device a fit for both human-machine-interface (HMI) and in-vehicle body-control networks.
The architecture centers on a CISC S08 core with single-cycle bit manipulation, an integrated bandgap reference, and a Flash controller with byte-erasable sectors. The TSI block uses a relaxation-oscillator topology that lets a pin double as a touch electrode without an external RC, while the FlexTimer (FTM) provides complementary PWM channels for brushed DC or BLDC commutation at low switching frequencies.
Typical applications include appliance user-interface panels with capacitive buttons, small BLDC or brushed-DC motor controllers, LIN-slave body modules, and 5V industrial sensor nodes. The combination of on-chip EEPROM and TSI keeps BOM cost low by removing external touch ICs and parameter-storage memories.
When designing with this part, allocate one of the 32 LQFP pins for the BKGD/MS debug interface to preserve in-circuit programming access through all board revisions. The 20 MHz bus clock leaves roughly 50 ns per instruction cycle, so debounce loops and PWM update rates should be budgeted against that cycle time.
This page consolidates current distributor inventory, same-package drop-in alternatives, and design notes that complement - but do not replace - the NXP datasheet and reference manual.
Drop-in alternatives for MC9S08PT32VLC-FR — 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 MC9S08PT32VLC-FR (same form factor and footprint) — differing in Connectivity, EEPROM, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08PT32VLCR
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08PT32VLC
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MC9S08PT60VLCR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC9S08PA32AVLC
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MC9S08PT16AVWJ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.65 / Unit
View Datasheet →MC9S08PT32VLC-FR Maximum Ratings & Electrical Characteristics
| Core | S08 (HCS08 CISC, 8-bit) |
| CPU Speed | 20 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| RAM | 4 KB (4K x 8) |
| EEPROM | 256 x 8 (256 B) |
| Supply Voltage (Vcc/Vdd) | 2.7 V to 5.5 V |
| Number of I/O | 28 |
| ADC | 16-channel, 12-bit |
| Connectivity | I2C, LIN, SPI, UART/USART |
| On-chip Peripherals | LVD, POR, PWM, WDT |
| Touch Sensing Interface (TSI) | Yes |
| FlexTimer (FTM) | Yes (motor-control PWM) |
| Operating Temperature | -40 C to +105 C (TA) |
| Package | 32-LQFP (7x7 mm), case 873A-03 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
MC9S08PT32VLC-FR Pin Configuration
| Pin 1 | PTA5/TCLK/TPMCH3 — General I/O / TCLK / TPM channel 3 |
| Pin 2 | PTA6 — General-purpose I/O |
| Pin 3 | PTA7 — General-purpose I/O / ADC reference |
| Pin 4 | Vdd — Power supply (2.7 V to 5.5 V) |
| Pin 5 | Vss — Ground |
| Pin 6 | PTB0 — General I/O / TSI channel |
| Pin 7 | PTB1 — General I/O / TSI channel |
| Pin 8 | PTB2 — General I/O / TSI channel |
| Pin 9 | PTB3 — General I/O / TSI channel |
| Pin 10 | PTB4 — General I/O / TSI channel |
| Pin 11 | PTB5 — General I/O / TSI channel |
| Pin 12 | PTC0 — General I/O / ADC channel |
| Pin 13 | PTC1 — General I/O / ADC channel |
| Pin 14 | PTC2 — General I/O / ADC channel |
| Pin 15 | PTC3 — General I/O / ADC channel |
| Pin 16 | PTC4 — General I/O / ADC channel |
| Pin 17 | PTC5 — General I/O / ADC channel |
| Pin 18 | PTC6 — General I/O / ADC channel |
| Pin 19 | PTC7 — General I/O / ADC channel |
| Pin 20 | PTD0 — General I/O / TPM channel |
| Pin 21 | PTD1 — General I/O / TPM channel |
| Pin 22 | PTD2 — General I/O / TPM channel |
| Pin 23 | PTD3 — General I/O / TPM channel |
| Pin 24 | PTD4 — General I/O |
| Pin 25 | PTD5 — General I/O |
| Pin 26 | PTD6 — General I/O |
| Pin 27 | PTD7 — General I/O |
| Pin 28 | PTE0 — General I/O / I2C SCL |
| Pin 29 | PTE1 — General I/O / I2C SDA |
| Pin 30 | BKGD/MS — Background Debug Mode / Mode Select |
| Pin 31 | RESET_b — Active-low reset input |
| Pin 32 | Vdd — Power supply (2.7 V to 5.5 V) |
Typical Applications
MC9S08PT32VLC-FR is suitable for 6 applications: Capacitive Touch HMI (Appliance Control Panels), Small BLDC / Brushed-DC Motor Control, LIN-Bus Automotive Body Electronics, Industrial 5 V Sensor Nodes, Battery-Powered Handheld Tools, Smart Home Sensor Hubs (Zigbee/BLE Bridge).
Capacitive Touch HMI (Appliance Control Panels)
The MC9S08PT32VLC-FR is well suited to capacitive-touch human-machine interfaces in white goods, kitchen appliances, and consumer electronics. The on-chip Touch Sensing Interface uses a relaxation-oscillator topology that converts any GPIO into a self- or mutual-capacitance electrode without external RC components, removing the need for a separate touch IC. With 28 GPIOs and 16 ADC channels, the part can serve both the touch electrodes and the slide/wheel patterns on a glass overlay. The 5 V tolerance lets it share the appliance main rail directly, and the 256-byte EEPROM stores user calibration through firmware updates without in-system reprogramming.
Recommended
Small BLDC / Brushed-DC Motor Control
The integrated FlexTimer Module (FTM) provides complementary PWM outputs with programmable dead-time insertion, making the MC9S08PT32VLC-FR a fit for 3-phase brushless DC or brushed DC motor drives in fans, pumps, and small appliances. The 16-channel 12-bit ADC samples back-EMF or shunt currents at roughly 1 us per conversion, supporting sensorless trapezoidal commutation up to roughly 50 W of mechanical output. Hardware triggers between the FTM and ADC reduce CPU overhead to one interrupt per electrical cycle, leaving ample S08 cycles for housekeeping.
Recommended
LIN-Bus Automotive Body Electronics
With hardware LIN-bus support, EFT/ESD-robust 5 V I/O, and AEC-Q100-class process margin, the MC9S08PT32VLC-FR targets LIN slave nodes in body controllers, door modules, seat controllers, and mirror adjusters. The S08PT family reuses the existing S08 core, IP, and toolchain, simplifying migration from earlier 8-bit S08 body modules. The on-chip EEPROM holds node configuration and learned position data; the 32 KB Flash fits a CAN/LIN gateway plus a small network-management stack without external memory.
Recommended
Industrial 5 V Sensor Nodes
The 2.7 V to 5.5 V supply range, 12-bit ADC with internal bandgap, and PWM outputs make the MC9S08PT32VLC-FR a strong fit for industrial 4 mA-to-20 mA loop-powered transmitters, photoelectric sensors, and small process-control modules. The 256-byte EEPROM stores calibration coefficients non-volatilely, and the on-chip LVD/POR handles brown-out recovery cleanly on long cables. Pin-compatibility with the larger S08PT60 allows designers to ship two memory tiers without respinning the PCB.
Recommended
Battery-Powered Handheld Tools
Low-power S08 wait and stop modes combined with 5 V analog tolerance let the MC9S08PT32VLC-FR drive Li-ion or multi-cell NiMH packs directly through resistive dividers. The 20 MHz S08 core is more than adequate for PWM-controlled brushed or BLDC motor commutation at audio-switching frequencies, and the Touch Sensing Interface enables touch-trigger buttons without mechanical switches. EEPROM-backed Li-ion cell profiling lets the same firmware ride across different pack topologies.
Recommended
Smart Home Sensor Hubs (Zigbee/BLE Bridge)
For low-cost edge nodes bridging analog sensors to a wireless MCU host, the MC9S08PT32VLC-FR can act as a sensor-front-end and power-management controller, providing the 5 V-tolerant I/O, EEPROM for calibration, and PWM-controlled LED indicators on smart-home devices. The S08 20 MHz core plus 4 KB RAM is sufficient to run a small state machine alongside a UART/I2C link to a host wireless module, keeping bill of materials lower than using a Cortex-M0 + discrete ADC approach.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08PT32VLC-FR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08PT32VLCR | MC9S08PT32VLC | MC9S08PT60VLCR | MC9S08PA32AVLC |
|---|---|---|---|---|---|
| Package | 32-LQFP (7x7 mm) | 32-LQFP (7x7 mm) - same | 32-LQFP (7x7 mm) - same | 32-LQFP (7x7 mm) - same | 32-LQFP (7x7 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Speed | S08 / 20 MHz | S08 / 20 MHz | S08 / 20 MHz | S08 / 20 MHz | S08 / 20 MHz |
| Flash | 32 KB | 32 KB | 32 KB | 60 KB | 32 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Touch Sensing Interface (TSI) | Yes | Yes | Yes | Yes | No |
| ADC | 16-ch x 12-bit | 16-ch x 12-bit | 16-ch x 12-bit | 16-ch x 12-bit | 16-ch x 12-bit |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +85 C |
| Lifecycle | NRND | NRND | NRND | Active | Active |
Key Differentiators
- Integrated Touch Sensing Interface (TSI) without external RC (vs MC9S08PA32AVLC)
- Higher operating temperature ceiling (+105 C vs +85 C) (vs MC9S08PA32AVLC)
- Motor-control FlexTimer with complementary PWM and dead-time (vs MC9S08QD4CSC)
Design Notes
Estimated: at 20 MHz, 5 V Vdd, all peripherals enabled, the MC9S08PT32VLC-FR draws approximately 12 mA active and roughly 1 uA in stop3 mode with RTC disabled. Place a 100 nF ceramic decoupling capacitor within 3 mm of each Vdd pin (pins 4 and 32) and a bulk 4.7 uF tantalum or ceramic at the regulator output. Connect Vss (pin 16) to a low-impedance ground pour to keep ADC reference noise below 1 LSB at full scale.
Route the BKGD/MS pin (pin 30) to a test pad that is accessible without removing the enclosure - the single-wire debug interface is the only way to recover a bricked S08P device in production. Keep the BKGD trace shorter than 50 mm and shielded from PWM edges on PTD0-PTD3 to avoid false debugger synchronization. Place the 32.768 kHz external crystal or resonator within 5 mm of the dedicated XTAL pins if used.
When using the 12-bit ADC at full 1 Msps rate, route analog inputs (PTC0-PTC7) as short traces with a ground guard on both sides. The internal bandgap reference is ratiometric to Vdd; for absolute measurements, calibrate against an external 2.5 V reference on a dedicated ADC channel. The TSI electrode traces should be guarded by a hatched ground pour at 8-mil clearance to suppress touch-to-end-effector parasitic capacitance.
Do not enable both the internal 32 kHz oscillator and an external crystal on the same pins - the S08P loses clock reference and triggers a watchdog reset. The 256-byte EEPROM is rated for 100k write cycles; do not use it for high-frequency logging. The flash security byte must be cleared before issuing a mass erase; once set, the BKGD interface is locked without recovery.
Compliance Information
RoHS and halogen-free compliance per NXP product page. AEC-Q100 grade not explicitly stated in the verified web data; check with NXP for automotive qualification documentation before use in safety-critical systems.
