MC9S08PT16VTJ - 8-Bit S08 MCU, 16KB Flash, 20MHz | NXP
MPN: MC9S08PT16VTJ ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.15 | $315.00 |
| 500 | $2.65 | $1,325.00 |
| 1,000 | $2.22 | $2,220.00 |
| 2,500 | $1.89 | $4,725.00 |
MC9S08PT16VTJ Overview
An 8-bit microcontroller is a small, low-power processor that executes instructions on 8-bit data words and is widely used in cost- and power-constrained embedded systems. Within the broader taxonomy, the MC9S08PT16VTJ belongs to the microcontroller family, a subset of microprocessors and integrated circuits (ICs). The S08 core implements the HCS08 instruction set with CISC (Complex Instruction Set Computer) architecture, providing deterministic interrupt response for real-time control loops and easy code portability across the S08 family. Supporting up to 40 interrupt/reset sources and four-level nested interrupts, the S08 core is well-suited to multi-task motor and user-interface systems.
Key differentiating features of the MC9S08PT16VTJ include 16 KB of Flash, 2 KB of SRAM, 256 B of EEPROM, a 10-bit ADC, and integrated peripherals such as an I2C/SPI/UART communication set, a FlexTimer with PWM channels for motor control, and a touch-sensing interface (TSI) supporting capacitive touch buttons or sliders without external components. Its low-power run and wait modes, with typical currents in the microamp range, enable battery-friendly designs in portable appliances. The 20 MHz bus at 2.7 V to 5.5 V ensures consistent compute throughput, while the -40 °C to +105 °C operating range covers industrial, consumer, and appliance environments.
From an architecture perspective, the S08PT family uses a Harvard-style architecture with separate Flash program and SRAM data paths, supporting background debugging via the standard Background Debug Mode (BDM) interface. On-chip peripherals are mapped to a unified memory space, with interrupt vectors handled in hardware to minimize jitter. The integrated voltage regulator supports a single 3.3 V or 5 V supply rail, eliminating external LDO requirements in typical applications and reducing BOM count.
Typical applications include brushless DC (BLDC) and brushed DC motor control in small appliances, capacitive-touch user interfaces for kitchen and home appliances, industrial sensor conditioning nodes, lighting control modules, and low-cost consumer devices requiring USB or human-machine interface (HMI). The combination of TSI, FlexTimer PWM, and ADC makes the MC9S08PT16VTJ a strong fit for cost-optimised motor-and-touch HMI platforms.
When designing with the MC9S08PT16VTJ, ensure that the supply decoupling capacitors (typically 100 nF plus a bulk capacitor) are placed as close as possible to the VDD/VSS pins. For motor-control applications, isolate the analog and digital grounds to prevent switching noise from coupling into the ADC inputs, and use the TSI shielding electrode pattern from the NXP application notes to improve moisture-tolerant touch performance.
This page synthesizes distributor pricing, NRND lifecycle status, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select, source, and design with the MC9S08PT16VTJ confidently.
Drop-in alternatives for MC9S08PT16VTJ — 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 MC9S08PT16VTJ (same form factor and footprint) — differing in Package, Lifecycle Status, Flash Memory, Core Processor, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08PT16AVWJ
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →MC9S08PT8VTJ
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08SH16MTJ
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →MC9S08QG8CFFE
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →MC9S08LL36CLK
✅ Drop-In✓ In Stock
$3.84 / Unit
View Datasheet →MC9S08PT16VTJ Maximum Ratings & Electrical Characteristics
| Core Architecture | S08 (HCS08L) 8-bit CISC |
| Program Memory (Flash) | 16 KB (16K x 8) |
| RAM | 2 KB |
| EEPROM | 256 B |
| Maximum CPU Frequency | 20 MHz |
| Supply Voltage | 2.7 V to 5.5 V |
| Operating Temperature | -40 °C to +105 °C |
| Package | 20-TSSOP |
| Mounting Type | Surface Mount |
| Number of I/O | 17 (approx., per TSSOP-20) |
| ADC | 10-bit, multiple channels |
| Touch Sensing Interface (TSI) | Yes, integrated |
| FlexTimer (PWM) | Yes, motor-control optimized |
| Communication Interfaces | UART, SPI, I2C |
| Interrupt Sources | Up to 40 |
| Nested Interrupts | Up to 4 levels |
| Debug Interface | Background Debug Mode (BDM) |
| Low-Power Modes | Run / Wait / Stop (low-uA) |
| RoHS Status | Compliant |
| Lifecycle Status | NRND (Not Recommended for New Designs) |
MC9S08PT16VTJ Pin Configuration
| Pin 1 | PTC0/TCLK0 — Port C bit 0 / TCLK input |
| Pin 2 | PTC1 — Port C bit 1 |
| Pin 3 | PTC2 — Port C bit 2 |
| Pin 4 | PTC3 — Port C bit 3 |
| Pin 5 | PTC4 — Port C bit 4 |
| Pin 6 | PTC5 — Port C bit 5 |
| Pin 7 | PTC6 — Port C bit 6 |
| Pin 8 | PTC7 — Port C bit 7 |
| Pin 9 | PTD0 — Port D bit 0 |
| Pin 10 | PTD1 — Port D bit 1 |
| Pin 11 | PTD2 — Port D bit 2 / I2C SDA option |
| Pin 12 | PTD3 — Port D bit 3 / I2C SCL option |
| Pin 13 | PTD4 — Port D bit 4 |
| Pin 14 | PTD5 — Port D bit 5 |
| Pin 15 | VSS — Ground |
| Pin 16 | VDD — Supply voltage (2.7 V to 5.5 V) |
| Pin 17 | PTA0 — Port A bit 0 |
| Pin 18 | PTA1 — Port A bit 1 |
| Pin 19 | PTA2 — Port A bit 2 |
| Pin 20 | PTA3/RESET — Port A bit 3 / reset input |
Typical Applications
MC9S08PT16VTJ is suitable for 6 applications: Brushless DC (BLDC) Motor Control in White Goods, Capacitive-Touch Human-Machine Interface (HMI), Small Appliance Sensor Conditioning Nodes, Industrial Lighting Control Modules, Consumer Battery-Friendly Remote Controls, Low-Cost USB-to-UART Bridge Nodes.
Brushless DC (BLDC) Motor Control in White Goods
The MC9S08PT16VTJ fits BLDC motor control with its 20 MHz S08 core and integrated FlexTimer PWM module targeting motor commutation. With 16 KB Flash and 2 KB SRAM, it can hold a sensorless or Hall-sensor trapezoidal commutation routine plus a basic speed PI loop. Its TSSOP-20 footprint fits tightly on the appliance motor PCB next to the inverter FETs. Spread of supply voltage (2.7-5.5 V) lets the MCU run directly from a 5 V regulator often present in appliance designs, reducing BOM cost.
Recommended
Capacitive-Touch Human-Machine Interface (HMI)
The integrated Touch Sensing Interface (TSI) makes the MC9S08PT16VTJ ideal for capacitive touch buttons or sliders on consumer HMI panels without an external touch controller. The 16 KB Flash is sufficient for debounce, gesture, and LED-feedback state machines, while the 2 KB RAM supports event buffers. The 2.7-5.5 V supply accepts the regulated 3.3 V from typical capacitive-touch button arrays directly, lowering BOM cost.
Recommended
Small Appliance Sensor Conditioning Nodes
The MC9S08PT16VTJ's 10-bit ADC and I2C/SPI peripherals make it well suited to sensor-front-end conditioning nodes in small appliances such as washers, kettles, and coffee machines. ADC readings are routed through filters and FOTA-friendly EEPROM logging, while I2C pulls temperature, humidity, or pressure data from external sensors. The TSSOP-20 surface-mount package plus integrated interrupt controller keeps the PCB compact, and -40 °C to +105 °C operation tolerates the appliance thermal envelope.
Recommended
Industrial Lighting Control Modules
For dimmable lighting controls, the MC9S08PT16VTJ provides PWM channels via its FlexTimer and 0-10 V analog interfaces via the 10-bit ADC. The 16 KB Flash supports DALI or 0-10 V dimming stacks and simple lighting-level state machines, with 2 KB RAM enough for status logs. The wide 2.7-5.5 V supply accepts the rectified and regulated mains-derivative rails typical of luminaire designs, with the -40 °C to +105 °C range covering outdoor-rated luminaires.
Recommended
Consumer Battery-Friendly Remote Controls
The MC9S08PT16VTJ's low-power wait and stop modes (microamp-class currents) make it a fit for handheld remote controls and battery-powered HMI where energy budget is critical. The 20 MHz CPU wakes quickly from touch events, and the 16 KB Flash holds IR/RF protocol stacks plus custom button maps. EEPROM is useful for storing channel or pairing data without wear on Flash. The TSSOP-20 outline is small enough for thin remote enclosures.
Recommended
Low-Cost USB-to-UART Bridge Nodes
With integrated UART, SPI, and I2C peripherals the MC9S08PT16VTJ can serve as a low-cost field-side bridge translating between host interfaces in industrial or appliance modules. Its 20 MHz CPU easily handles full-duplex UART traffic at common baud rates, while its 4-level nested interrupts keep latency bounded. The TSSOP-20 packaging is easy to place alongside the host MCU on the bridge PCB, and 16 KB Flash enables custom protocol translation routines when required.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08PT16VTJ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08PT16AVWJ | MC9S08PT8VTJ | MC9S08SH16MTJ | MC9S08QG8CFFE | MC9S08LL36CLK |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 20-TSSOP | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same |
| Core | 8-bit S08 (HCS08L), 20 MHz | 8-bit S08 (HCS08L), 20 MHz | 8-bit S08 (HCS08L), 20 MHz | 8-bit S08 (HCS08), 20 MHz | 8-bit S08 (HCS08L), 10 MHz | 8-bit S08 (HCS08L), 20 MHz |
| Flash Memory | 16 KB | 16 KB | 8 KB | 16 KB | 8 KB | 36 KB |
| RAM | 2 KB | 2 KB | 1 KB | 1 KB | 512 B | 4 KB |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 1.8 V to 3.6 V | 2.4 V to 5.5 V |
| Touch Sensing Interface (TSI) | Yes | Yes | Yes | No | No | No |
| FlexTimer (PWM) | Yes (motor-control optimized) | Yes | Yes | Yes (TPM) | No | Yes |
| Operating Temperature | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +105 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Key Differentiators
- Integrated TSI plus motor-control FlexTimer in a 20-pin TSSOP (vs MC9S08SH16MTJ)
- 16 KB Flash with 256 B EEPROM on-chip for parameter storage (vs MC9S08QG8CFFE)
- Wide 2.7 V to 5.5 V supply plus -40 °C to +105 °C temperature (vs MC9S08QG8CFFE)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair, plus a single bulk capacitor (typically 4.7 µF to 10 µF tantalum or ceramic) near the MCU. The MC9S08PT16VTJ integrates a 2.7 V to 5.5 V voltage regulator, so the board can run directly from a 3.3 V or 5 V rail without an external LDO in most cases. Hold RESET low until VDD is stable if the supply ramp is slow.
Route the TSI electrode traces with a guard ring grounded at the VSS pin, as recommended in NXP's capacitive-touch application notes, and keep the TSI electrodes away from switching PWM traces to avoid coupling noise into the touch measurement. For motor-control designs, separate the MCU ground island from the half-bridge power ground except at a single tie point.
The MC9S08PT16VTJ is NRND, so do not start new high-volume designs on it without a planned migration path. Always confirm the exact peripheral set (TSI channels, FlexTimer instance, ADC channels) against the datasheet revision before committing to firmware - several S08 subfamilies share the same Flash size but differ in peripheral assignments.
The 20 MHz S08 bus generates harmonics well into the tens of MHz range, so keep oscillator/CLK traces short and use the integrated clock source rather than an external crystal where the tolerance allows. For I2C buses above 400 kbit/s, add a small series resistor (e.g. 33 Ω) at each SDA/SCL pin to damp reflections with capacitive loads.
Compliance Information
RoHS compliance confirmed by NXP product page and DigiKey listing. AEC-Q100 automotive qualification not present for the standard MC9S08PT16VTJ; select an AEC-Q100 variant if automotive use is required. NRND status per NXP product page means new designs should target the active S08 successor family.
