MC9S08PT16VWJ - 8-bit S08 MCU, 16KB Flash, 20MHz, SOIC-20 | NXP
MPN: MC9S08PT16VWJ ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.37 | $237.00 |
| 500 | $2.13 | $1,065.00 |
| 1,000 | $1.89 | $1,890.00 |
MC9S08PT16VWJ Overview
An 8-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU, memory (Flash/ROM/RAM), and peripherals such as timers, ADCs, and communication interfaces onto one die. The S08 architecture is NXP's low-power, deterministic 8-bit core family that prioritizes low BOM cost, robust electromagnetic compatibility (EMC), and pin-compatible scalability across the S08PT sub-family. Within the broader taxonomy, the MC9S08PT16 belongs to the 8-bit MCU category -> microcontroller -> embedded processor -> semiconductor.
Key features of the MC9S08PT16VWJ include 16 KB (16K x 8) Flash program memory, on-chip EEPROM for data storage, a motor-control FlexTimer (FTM) module, multiple low-power modes, an integrated TSI for capacitive touch buttons, and excellent EFT/ESD performance for industrial and appliance environments. The 8-bit CPU executes most instructions in one to two bus cycles, which gives deterministic throughput for real-time control loops.
The S08PT family is built on a 5V process that simplifies analog/mixed-signal interfacing, and the PT sub-family adds peripherals (TSE/EEPROM/FlexTimer) tuned for cost-sensitive motor, lighting, and human-interface designs. Pin-compatibility across the S08PT family allows migration between 8 KB and 16 KB Flash variants without PCB rework.
Typical applications include small appliance control motor control, capacitive touch user interfaces, LED lighting controllers, building automation sensor nodes, and low-cost industrial controllers. The wide 5 V supply tolerance and strong EMC make the MC9S08PT16VWJ especially attractive for white-goods and appliance platforms.
When designing with this device, ensure that the TSI electrode geometry follows NXP's TSI hardware guidelines to maximize touch sensitivity and minimize false triggers. Use NXP's CodeWarrior or the S08 peripheral configuration tooling to generate the FlexTimer and ADC initializations, and place a decoupling capacitor within 5 mm of every supply pin.
Drop-in alternatives for MC9S08PT16VWJ — 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 MC9S08PT16VWJ (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, Mounting Type, Debug Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08PT16VTJ
✅ Drop-In✓ In Stock
$1.89 / Unit
View Datasheet →MC9S08PT8VWJ
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View Datasheet →MC9S08PA16VTJ
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View Datasheet →MC9S08PA8VLC
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View Datasheet →MC9S08SH4CTJ
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View Datasheet →MC9S08AC8MFGE
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View Datasheet →MC9S08PT16VWJ Maximum Ratings & Electrical Characteristics
| Core | S08 (8-bit) |
| Maximum Bus Frequency | 20 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Operating Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature Range | -40 °C to +105 °C (Industrial) |
| Package | 20-SOIC (0.295 inch / 7.50 mm body width) |
| Number of Pins | 20 |
| On-Chip EEPROM | Yes (size per document) |
| Touch Sensing Interface (TSI) | Yes |
| FlexTimer (FTM) Modules | Yes (motor-control capable) |
| Interrupt Sources | Up to 40 |
| Nested Interrupt Levels | 4 |
| Mounting Type | Surface Mount |
| Lifecycle Status | NRND (Not Recommended for New Designs) |
MC9S08PT16VWJ Pin Configuration
| Pin 1 | PTA5/TCLK/RESET — General I/O / external clock / reset |
| Pin 2 | PTA4/ACMPO — General I/O / analog comparator output |
| Pin 3 | PTA3/SDA — General I/O / I2C SDA |
| Pin 4 | PTA2/SCL — General I/O / I2C SCL |
| Pin 5 | PTA1/TXD — General I/O / SCI TXD |
| Pin 6 | PTA0/RXD — General I/O / SCI RXD |
| Pin 7 | VDD — Supply voltage (2.7 V to 5.5 V) |
| Pin 8 | VSS — Ground |
| Pin 9 | PTB7 — General I/O / TSI channel |
| Pin 10 | PTB6 — General I/O / TSI channel |
| Pin 11 | PTB5 — General I/O / TSI channel |
| Pin 12 | PTB4 — General I/O / TSI channel |
| Pin 13 | PTC3 — General I/O |
| Pin 14 | PTC2 — General I/O |
| Pin 15 | PTC1 — General I/O |
| Pin 16 | PTC0 — General I/O |
| Pin 17 | PTD0 — General I/O |
| Pin 18 | PTD1 — General I/O |
| Pin 19 | PTD2 — General I/O |
| Pin 20 | PTD3 — General I/O |
Typical Applications
MC9S08PT16VWJ is suitable for 6 applications: Small Appliance Motor Control, Capacitive Touch User Interface, LED Lighting Controllers, Building Automation Sensor Nodes, Industrial Control Modules, White Goods and Home Appliances.
Small Appliance Motor Control
The MC9S08PT16VWJ is well-suited to small appliance motor control because its integrated FlexTimer (FTM) module generates the PWM waveforms needed to drive brushed DC and simple BLDC fans and pumps at 20 MHz bus speed. Its 5 V operating range eliminates the level shifter required when interfacing to 5 V gate drivers, and the 16 KB Flash is sufficient for typical motor commutation state machines plus closed-loop PI control. Pin-compatible migration to the 8 KB PT8 variant lets designers tune cost once firmware size stabilizes.
Recommended
Capacitive Touch User Interface
The MC9S08PT16VWJ's on-chip Touch Sensing Interface (TSI) supports capacitive buttons, sliders, and proximity sensors without an external touch IC, making it ideal for appliance front-panel touch UIs. The TSI hardware engine scans electrodes in the background, freeing the CPU for application logic and communication. NXP's TSI guidelines recommend specific electrode geometry, ground-fill clearance, and overlay thickness to maximize sensitivity; designers should follow those notes for production-quality touch performance.
Recommended
LED Lighting Controllers
Lighting controllers using the MC9S08PT16VWJ benefit from the FTM channels that produce precise PWM dimming across multiple LED strings with sub-microsecond resolution. The 5 V supply tolerance allows direct connection to 5 V analog LED strings without level translation, simplifying the analog front end. The 16 KB Flash comfortably fits dimming curves, fade tables, and color-mixing algorithms while the S08 core delivers deterministic interrupt response for over-temperature and current-foldback loops.
Recommended
Building Automation Sensor Nodes
Building automation sensor nodes leverage the MC9S08PT16VWJ's low-power modes and 5 V tolerance for direct connection to 24 V bus-derived rails. The S08 architecture's fast interrupt response and four-level nested interrupts let the device wake on sensor events, sample, transmit, and return to sleep with deterministic latency. The wide -40 °C to +105 °C operating range supports installation in plant rooms and outdoor enclosures, while the integrated TSI enables wall-mounted touch keypads.
Recommended
Industrial Control Modules
Industrial control modules benefit from the MC9S08PT16VWJ's strong EFT/ESD performance and 5 V analog tolerance, allowing the device to operate directly with industrial 24 V sensors through simple resistive dividers. The S08 core's deterministic execution and four-level nested interrupts ensure that critical protection routines preempt background tasks without jitter. The 20-pin SOIC package is easy to assemble on through-hole industrial backplanes and supports hand-repair when service teams need field replacement.
Recommended
White Goods and Home Appliances
The MC9S08PT16VWJ's 5 V supply, integrated TSI, motor-control FTM, and strong EFT/ESD tolerance make it a long-standing reference platform for white goods and home appliances. The S08PT family was designed specifically for the white-goods market, and the PT16 sits in the middle of the family with 16 KB Flash for typical user-interface plus motor-control firmware. The wide -40 °C to +105 °C industrial temperature range covers under-counter, garage, and outdoor appliance installations without derating.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08PT16VWJ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08PT16VTJ | MC9S08PT8VWJ | MC9S08PA16VTJ | MC9S08PA8VLC | MC9S08SH4CTJ |
|---|---|---|---|---|---|---|
| Package | 20-SOIC | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | S08 (8-bit) | S08 (8-bit) | S08 (8-bit) | S08PA (8-bit) | S08PA (8-bit) | S08SH (8-bit) |
| Flash Memory | 16 KB | 16 KB | 8 KB (-50%) | 16 KB | 8 KB (-50%) | 4 KB (-75%) |
| Maximum Bus Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Voltage Range | 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 | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Touch Sensing Interface (TSI) | Yes | Yes | Yes | Yes (enhanced) | Yes | No |
| Lifecycle Status | NRND | NRND | NRND | Active | Active | NRND |
Key Differentiators
- Integrated Touch Sensing Interface (TSI) without external touch IC (vs MC9S08SH4CTJ)
- Larger Flash memory (16 KB) for richer motor-control and UI firmware (vs MC9S08PT8VWJ)
- Modern S08PT architecture with stronger EFT/ESD performance (vs MC9S08AC8MFGE)
Design Notes
Place a 0.1 µF decoupling capacitor within 5 mm of the VDD pin and a bulk capacitor (4.7 µF or larger) on the same supply rail. The MC9S08PT16VWJ operates from 2.7 V to 5.5 V; for industrial 24 V bus systems, derive 5 V with a switching pre-regulator followed by a linear LDO to suppress switching noise from reaching the analog peripherals. Use the device's low-power STOP and WAIT modes aggressively to extend battery life in sensor-node designs.
Do not assume that the MC9S08PT16VTJ and MC9S08PT16VWJ are functionally different - the suffix only encodes tape-and-reel and packaging details, not the silicon. However, do not substitute the MC9S08SH4CTJ if your firmware depends on the TSI peripheral; the SH family lacks the Touch Sensing Interface. Always cross-check the TSI channel mapping before migrating across S08 sub-families.
Follow NXP's TSI hardware guidelines when laying out capacitive touch electrodes: maintain minimum ground-fill clearance, avoid long traces to electrodes, and isolate touch pads from switching signals to prevent false triggers. For motor-control applications, route the FTM PWM traces away from sensitive analog inputs and keep the GND return path short to reduce dI/dt-induced noise coupling.
Compliance Information
RoHS and REACH compliant per NXP product page. Industrial temperature grade (-40 C to +105 C); not AEC-Q100 qualified. Lifecycle status NRND per NXP product page as of 2026-10-19.
