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NXP Semiconductors MC9S08PT8AVWJ
- Part No.:
- MC9S08PT8AVWJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC9S08PT8AVWJ.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,674
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Product details
Overview
MC9S08PT8AVWJ from NXP Semiconductors is an 8-bit S08 microcontroller with 8 KB flash, 2 KB RAM, and 256 B EEPROM, operating at up to 20 MHz across –40 °C to 105 °C. It integrates a 12-channel 12-bit ADC, two FlexTimer modules (6+2 channels), I²C, dual SCI/UART, SPI, RTC, analog comparator, and touch-sensing interface (TSI) for embedded control in automotive body electronics and industrial sensors.
For engineers reviewing the MC9S08PT8AVWJ datasheet, MC9S08PT8AVWJ pinout, MC9S08PT8AVWJ application, or MC9S08PT8AVWJ equivalent, this page delivers verified specifications, package mapping to 20-pin SOIC, validated peripheral configurations, and real-world design context for low-power, cost-sensitive 8-bit MCU selection.
Technical Context
The MC9S08PT8AVWJ implements an enhanced S08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines an internal frequency-locked loop (FLL) - trimmed to ±1% over 0–70 °C and ±2% over –40–105 °C - with external crystal/ceramic oscillator support (31.25 kHz–20 MHz).
System protection includes independent watchdog timer, programmable low-voltage detect (LVD) with four warning thresholds, illegal opcode/address detection, and flash/RAM access protection. Power management supports Stop3 mode with sub-µA current (1.3 µA typical at 3 V) while retaining RTC, TSI, and LVD functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 8-bit S08 CPU, up to 20 MHz bus frequency at 2.7–5.5 V |
| Memory | 8 KB flash (read/program/erase in operation), 2 KB RAM, 256 B EEPROM with 2-byte erase sectors |
| ADC | 12-channel, 12-bit resolution, 2.5 µs conversion time, internal bandgap reference, stop-mode operation |
| Timers | Two FTM modules (6-channel + 2-channel), one 8-bit modulo timer, 16-bit RTC |
| Communication | I²C (up to 400 kbps), two SCI/UART (LIN-capable), one SPI, CRC module |
| Power Modes | Stop3 mode: 1.3 µA typical (5 V), 1.3 µA typical (3 V); wait mode down to 1.2 mA at 1 MHz |
| Operating Range | –40 °C to 105 °C ambient, 2.7–5.5 V supply voltage |
Pinout & Package
MC9S08PT8AVWJ is housed in a 20-pin SOIC (package code WJ), with 18 GPIOs, two true open-drain outputs (PTA2, PTA3), one output-only debug pin (PTA4/BKGD), and dedicated power/ground pairs. Pin functions are multiplexed per signal group including ADC inputs, TSI electrodes, FTM channels, and serial interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0/KBI0P0/FTM0CH0/ACMP0/ADP0 | Port A bit 0 / Keyboard interrupt / FTM channel / Analog comparator input / ADC channel 0 | Multi-function I/O supporting wake-from-stop via KBI, PWM generation, analog sensing, and digital acquisition |
| PTA1/KBI0P1/FTM0CH1/ACMP1/ADP1 | Port A bit 1 / Keyboard interrupt / FTM channel / Analog comparator input / ADC channel 1 | Shared resource enabling simultaneous touch key scan, motor control timing, and sensor signal conditioning |
| PTA2/KBI0P2/RxD0/SDA1 | Port A bit 2 / Keyboard interrupt / SCI0 receive / I²C data | True open-drain output compatible with I²C bus pull-up; supports asynchronous wake on serial or key event |
| PTA3/KBI0P3/TxD0/SCL1 | Port A bit 3 / Keyboard interrupt / SCI0 transmit / I²C clock | True open-drain output; enables bidirectional I²C communication without level-shifting circuitry |
| PTA4/ACMPO/BKGD/MS | Port A bit 4 / Analog comparator output / Background debug / Master select | Output-only pin used for single-wire debug interface; cannot be configured as general-purpose I/O |
| PTA5/IRQ/TCLK0/RESET | Port A bit 5 / External interrupt / Timer clock / Reset input | Combines hardware reset assertion, external event triggering, and timer clock source in one pin |
| PTA6/FTM2FAULT1/ADP2/TSI0 | Port A bit 6 / FTM fault input / ADC channel 2 / TSI electrode 0 | Supports motor control fault detection, analog measurement, and capacitive touch sensing on same pin |
| PTA7/FTM2FAULT2/ADP3/TSI1 | Port A bit 7 / FTM fault input / ADC channel 3 / TSI electrode 1 | Enables dual-fault monitoring for H-bridge drivers while sharing resources with analog and touch subsystems |
| PTB0/KBI0P4/RxD0/ADP4/TSI2 | Port B bit 0 / Keyboard interrupt / SCI0 receive / ADC channel 4 / TSI electrode 2 | Shared SCI receive path and touch electrode reduces pin count in space-constrained designs |
| PTB1/KBI0P5/TxD0/ADP5/TSI3 | Port B bit 1 / Keyboard interrupt / SCI0 transmit / ADC channel 5 / TSI electrode 3 | Enables LIN-compliant UART communication and capacitive sensing without additional I/O allocation |
Key Features
| Feature | Design Value |
|---|---|
| Single-wire background debug (BDM) | Enables in-circuit programming and real-time debugging using only BKGD pin - no JTAG header required |
| On-chip ICE debug module | Provides two comparators and nine trigger modes for precise breakpoint and trace analysis during development |
| Touch Sensing Interface (TSI) | Supports up to 8 external electrodes with hardware-accelerated scanning and wake-from-Stop3 capability |
| Low-voltage detection (LVD) | Four programmable trip points (high/low range) with interrupt or reset output - configurable for brown-out recovery |
| Flash and RAM protection | Hardware-enforced memory access control prevents unauthorized read/write/execute operations in secure applications |
Applications
| Automotive Body Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Main system controller executing real-time PWM for motor drives, ADC-based position feedback, and LIN communication with remote nodes. Use Value: Integrated LIN-capable SCI, high-current drive pins (20 mA sink/source), and -40–105 °C qualification enable direct replacement of discrete logic + transceiver solutions. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and air quality in factory settings. IC Role / Device Role / Timing Role: Low-power host managing sensor polling, data logging to EEPROM, and wireless gateway handoff via UART. Use Value: Stop3 mode current of 1.3 µA at 3 V extends battery life beyond 5 years; integrated ADC and CRC ensure reliable sensor data integrity. |
| Appliance User Interface | Smart Lighting Controller |
|
Use Scenario: Touch-enabled front panel for microwave ovens, washing machines, and HVAC systems. IC Role / Device Role / Timing Role: Capacitive touch processor interfacing with up to 8 electrodes, debouncing keys, and driving LED indicators via GPIO. Use Value: Dedicated TSI module with hardware scan engine eliminates need for external touch IC; true open-drain pins simplify LED driver integration. |
Use Scenario: Dimmable LED driver for commercial fixtures requiring DALI or 0–10 V analog control. IC Role / Device Role / Timing Role: PWM generator for LED current regulation, ADC for feedback sensing, and I²C master for configuration storage and diagnostics. Use Value: Two independent FTM modules provide synchronized 16-bit PWM outputs; internal bandgap reference ensures stable dimming accuracy across voltage and temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08PT8AVTJ | Identical core, memory, and peripherals; differs only in 20-pin TSSOP package (vs. SOIC) | No PCB redesign needed if footprint and thermal requirements align; TSSOP offers slightly better thermal performance | Select MC9S08PT8AVTJ when board layout requires smaller footprint or improved solder joint reliability under thermal cycling |
| S9KEAZ128AMLH | ARM Cortex-M0+ core, 128 KB flash, 16 KB RAM, higher performance but larger die size and different toolchain | Requires firmware porting; supports more complex protocols (USB, CAN) not available on MC9S08PT8AVWJ | Choose S9KEAZ128AMLH for future-proofing where software scalability and mixed-signal integration exceed S08 capabilities |
Compared with MC9S08PT8AVWJ, MC9S08PT8AVTJ offers identical functionality in a surface-mount-compatible TSSOP package, while S9KEAZ128AMLH provides ARM-based upgrade path with expanded memory and protocol support - neither is pin-compatible, but both serve overlapping cost-sensitive embedded control roles.
Availability
MC9S08PT8AVWJ is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, appliance user interfaces, and smart lighting controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC9S08PT8AVWJ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in microcontrollers, RF, and analog technologies.
The MC9S08PT8AVWJ belongs to NXP's legacy S08 portfolio designed for cost-optimized, low-power 8-bit embedded control - targeting applications where deterministic real-time response, small footprint, and extended temperature operation outweigh the need for 32-bit processing.
FAQ
What is the maximum operating frequency of the MC9S08PT8AVWJ?
The MC9S08PT8AVWJ supports a maximum bus frequency of 20 MHz across its full operating voltage range (2.7–5.5 V) and temperature range (–40 °C to 105 °C). This is achieved using either the internal frequency-locked loop (FLL) or external crystal/ceramic oscillator, with FLL trimming ensuring ±2% accuracy over the full temperature range.
Does the MC9S08PT8AVWJ support touch sensing functionality?
Yes, the MC9S08PT8AVWJ includes a dedicated Touch Sensing Interface (TSI) module supporting up to 8 external electrodes. It features configurable software/hardware scan triggers, automatic calibration, and the ability to wake the MCU from Stop3 mode - fully compatible with NXP's official touch sensing software library.
What package type is used for the MC9S08PT8AVWJ?
The MC9S08PT8AVWJ uses a 20-pin SOIC package (package code WJ), with dimensions of 7.5 mm × 12.8 mm and standard 1.27 mm pitch. This through-hole-compatible surface-mount package is optimized for cost-sensitive industrial and automotive applications requiring proven manufacturability and thermal stability.
How much flash memory does the MC9S08PT8AVWJ have?
The MC9S08PT8AVWJ contains 8,192 bytes (8 KB) of on-chip flash memory. It supports read, program, and erase operations over the full operating voltage (2.7–5.5 V) and temperature (–40 °C to 105 °C) ranges, with flash access protection enabled via hardware security bits.
Can the MC9S08PT8AVWJ operate in ultra-low-power modes?
Yes, the MC9S08PT8AVWJ supports multiple low-power modes, including Stop3 mode with typical current consumption of 1.3 µA at both 3 V and 5 V. In Stop3, the 1 kHz LPO clock remains active, allowing RTC, TSI, LVD, and ADC to function - enabling wake-on-event without full system restart.
MC9S08PT8AVWJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- S08
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 18
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08PT8AVWJ FAQ
1.How can I place an order for MC9S08PT8AVWJ through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08PT8AVWJ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC9S08PT8AVWJ reliable?
The price and inventory of MC9S08PT8AVWJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08PT8AVWJ is usually 5 days.
3.What payment methods are accepted for MC9S08PT8AVWJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08PT8AVWJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08PT8AVWJ?
MC9S08PT8AVWJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08PT8AVWJ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC9S08PT8AVWJ?
For technical support, including MC9S08PT8AVWJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08PT8AVWJ requirements.
6.How does Aetrix verify that MC9S08PT8AVWJ is sourced from the original manufacturer or authorized distributors?
All MC9S08PT8AVWJ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC9S08PT8AVWJ meets industry standards.
7.What is the process for return or replacement of MC9S08PT8AVWJ?
All MC9S08PT8AVWJ units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08PT8AVWJ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC9S08PT8AVWJ part is unused and in its original packaging.
Return procedure for MC9S08PT8AVWJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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