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NXP Semiconductors MC9S08PA8VWJ
- Part No.:
- MC9S08PA8VWJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC9S08PA8VWJ.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,772
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Product details
Overview
MC9S08PA8VWJ 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 FTM modules (6+2 channels), dual SCI/LIN interfaces, I²C, SPI, RTC, and analog comparator - deployed in automotive body control modules requiring robust timing, mixed-signal sensing, and LIN communication.
For engineers reviewing the MC9S08PA8VWJ datasheet, MC9S08PA8VWJ pinout, MC9S08PA8VWJ application, or MC9S08PA8VWJ equivalent, this page delivers verified electrical specs, validated package mapping (20-pin SOIC), confirmed peripheral configuration, and real-world use context for industrial and automotive embedded design.
Technical Context
The MC9S08PA8VWJ implements an S08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines an external crystal oscillator (4–20 MHz) and an internal frequency-locked loop (FLL) with factory-trimmed reference enabling ±1% accuracy from 0 °C to 70 °C.
System protection includes independent watchdog timer, programmable low-voltage detect (LVD) with four warning thresholds, illegal opcode/address detection, and flash/RAM access protection. Debug is enabled via single-wire background interface with three breakpoints and on-chip ICE module.
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 supply |
| Memory | 8 KB flash (read/program/erase over full voltage/temperature), 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, operation in stop mode |
| Timers | Two FTM modules (6-channel + 2-channel), 16-bit counter each; one 8-bit modulo timer; 16-bit RTC |
| Communication | Dual SCI (LIN-capable), one I²C (400 kbps), one SPI (master/slave), CRC module |
| Supply Range | 2.7 V to 5.5 V; operates from –40 °C to 105 °C (V-grade) |
| GPIO | 18 general-purpose I/O pins including 2 true open-drain outputs and 2 ultra-high-current sink pins (20 mA) |
Pinout & Package
MC9S08PA8VWJ is housed in a 20-pin SOIC package (package code VWJ), with thermal resistance RθJA = 82 °C/W on single-layer board. Pin assignments are defined per Table 9.2 of MC9S08PA16 Rev. 4 datasheet and validated for the PA8 variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0/KBI0P0/FTM0CH0/ACMP0/ADP0 | Port A bit 0 / Keyboard interrupt / FTM0 channel 0 / Analog comparator input / ADC channel 0 | Multi-function pin supporting input capture, analog sensing, and wake-up from keyboard matrix |
| PTA1/KBI0P1/FTM0CH1/ACMP1/ADP1 | Port A bit 1 / Keyboard interrupt / FTM0 channel 1 / Analog comparator input / ADC channel 1 | Enables dual-channel analog comparison or synchronized PWM generation with FTM0 |
| PTA2/KBI0P2/RxD0/SDA1 | Port A bit 2 / Keyboard interrupt / SCI0 receive / I²C data | True open-drain output when used as SDA; supports multi-master I²C and LIN RX |
| PTA3/KBI0P3/TxD0/SCL1 | Port A bit 3 / Keyboard interrupt / SCI0 transmit / I²C clock | True open-drain output when used as SCL; enables shared-bus I²C master/slave operation |
| PTA4/ACMPO/BKGD/MS | Port A bit 4 / Analog comparator output / Background debug / Master select | Output-only pin; primary debug interface for single-wire BDM programming and in-circuit emulation |
| PTA5/IRQ/TCLK0/RESET | Port A bit 5 / Interrupt request / Timer clock / Reset input | Active-low reset with external pulse width ≥1.5 × tcyc; supports asynchronous IRQ and external timer clocking |
| PTB0/KBI0P4/RxD0/ADP4 | Port B bit 0 / Keyboard interrupt / SCI0 receive / ADC channel 4 | Shared SCI0 RX and ADC input allows sensor data acquisition with serial telemetry |
| PTB1/KBI0P5/TxD0/ADP5 | Port B bit 1 / Keyboard interrupt / SCI0 transmit / ADC channel 5 | Enables full-duplex SCI communication while sampling auxiliary analog signals |
| VDD, VSS | Power supply and ground | Single 2.7–5.5 V supply rail; VSS serves digital and analog ground domains |
| EXTAL, XTAL | External oscillator inputs | Supports 4–20 MHz crystal or ceramic resonator for precise system clock generation |
Key Features
| Feature | Design Value |
|---|---|
| Flash endurance & flexibility | 100,000 program/erase cycles; supports read-while-write and program/erase while executing |
| Low-power operation | Stop3 mode draws only 1.3 µA (typical); ADC and LVD adders increase current by ≤40 µA and ≤128 µA respectively |
| Robust system supervision | Independent 1 kHz watchdog clock; configurable LVD trip points (e.g., 4.3 V high-range detect, 2.61 V low-range detect) |
| Mixed-signal integration | 12-bit ADC with watermark buffers and hardware trigger; analog comparator with separate rising/falling edge interrupts |
| Peripheral configurability | Each FTM channel supports input capture, output compare, or edge-/center-aligned PWM; SCI includes LIN break detection |
Applications
| Automotive Body Control Unit | Industrial Sensor Node |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing LIN slave protocol, sampling switch inputs via KBI, driving actuators using FTM PWM, and monitoring battery voltage via ADC. Use Value: 18 GPIOs and dual SCI enable direct LIN bus connectivity and local sensor/actuator interfacing without external logic; V-grade temperature range ensures reliability under hood-adjacent mounting. |
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and light data in remote equipment cabinets. IC Role / Device Role / Timing Role: Low-power data acquisition node using ADC and ACMP for threshold-triggered wake-up, RTC for scheduled sampling, and SPI to interface with external sensor ICs. Use Value: Stop3 mode current ≤1.35 µA extends battery life; integrated CRC and flash protection ensure firmware integrity in unattended deployments. |
| Smart Appliance Control Panel | Motorized HVAC Actuator |
|
Use Scenario: Keypad-driven user interface for washing machines, ovens, or dishwashers with LED feedback and buzzer alerts. IC Role / Device Role / Timing Role: Keyboard interrupt controller scanning 8-key matrix, driving LEDs via GPIO, generating tones via FTM PWM, and communicating status via I²C to main controller. Use Value: Dedicated KBI module reduces CPU overhead; true open-drain PTA2/PTA3 pins simplify I²C bus pull-up design; 20 mA sink capability drives LEDs directly. |
Use Scenario: Position-controlled damper or valve actuator in commercial HVAC systems using stepper or DC motor. IC Role / Device Role / Timing Role: Motion controller generating precise PWM for motor drive, reading potentiometer feedback via ADC, detecting end stops with ACMP, and reporting position via SCI. Use Value: 6-channel FTM supports complementary PWM for H-bridge control; 12-bit ADC resolution (0.61 mV LSB at 2.5 V ref) enables accurate analog feedback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08PA16VWJ | 16 KB flash, same 20-pin SOIC package, identical peripherals and pinout | Higher firmware capacity for complex control algorithms or bootloader + application separation | Select when >8 KB flash is required; drop-in replacement with no PCB change |
| S9KEAZ128AMLH | ARM Cortex-M0+, 128 KB flash, 16 KB RAM, 16-bit ADC, different architecture and toolchain | Migration path for higher performance, RTOS support, or future scalability beyond 8-bit constraints | Choose for new designs targeting longer lifecycle or enhanced compute needs; requires layout and firmware redesign |
Compared with MC9S08PA8VWJ, MC9S08PA16VWJ offers double flash capacity in identical packaging for seamless firmware growth, while S9KEAZ128AMLH provides ARM-based upgrade potential at the cost of architectural discontinuity and redesign effort.
Availability
MC9S08PA8VWJ is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance UIs, and HVAC actuator control requiring stable component supply across extended temperature ranges.
Supply support for MC9S08PA8VWJ 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in microcontrollers and embedded security.
The MC9S08PA series was designed for cost-sensitive, thermally demanding embedded control applications requiring mixed-signal integration, LIN compliance, and long-term automotive qualification - exemplified by the MC9S08PA8VWJ's V-grade operation and on-chip system supervision.
FAQ
What is the maximum operating frequency and voltage range for the MC9S08PA8VWJ?
The MC9S08PA8VWJ operates at up to 20 MHz bus frequency across a supply voltage range of 2.7 V to 5.5 V, with guaranteed performance over the full industrial temperature range of –40 °C to 105 °C. This specification is validated per the MC9S08PA16 Series Data Sheet Rev. 4, Section 5.4 and Table 1.
Does the MC9S08PA8VWJ support LIN communication, and how is it implemented?
Yes, the MC9S08PA8VWJ supports LIN communication through its two SCI modules, both featuring optional 13-bit break detection and NRZ framing - meeting LIN 2.1 physical layer requirements. SCI0 and SCI1 are independently configurable, allowing one to serve as LIN master and another as slave in multi-node systems.
How much flash memory does the MC9S08PA8VWJ have, and what are its programming characteristics?
The MC9S08PA8VWJ contains 8,192 bytes (8 KB) of on-chip flash memory, rated for 100,000 program/erase cycles. It supports read-while-write, program/erase while executing, and flash access protection - all verified in Section 7.2 (NVM specifications) of the MC9S08PA16 datasheet.
What debug interface does the MC9S08PA8VWJ provide, and what capabilities does it offer?
The MC9S08PA8VWJ features a single-wire background debug interface (BDM) accessible via PTA4/BKGD pin, supporting in-circuit debugging, three hardware breakpoints, and on-chip ICE with two comparators and nine trigger modes - as documented in Section 1.3 and Table 7.2 of the MC9S08PA16 datasheet.
Is the MC9S08PA8VWJ pin-compatible with other members of the PA family, and which packages share the same pinout?
Yes, the MC9S08PA8VWJ in 20-pin SOIC shares identical pin assignments with MC9S08PA16VWJ and other VWJ-suffixed variants. Pin compatibility is confirmed in Table 9.2 (Device pin assignment) of the MC9S08PA16 datasheet, where all 20-pin SOIC devices use the same signal mapping regardless of flash size.
MC9S08PA8VWJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- S08
- Packaging:
- Tube
- Product Status:
- Not For New Designs
- 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:
MC9S08PA8VWJ FAQ
1.How can I place an order for MC9S08PA8VWJ through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08PA8VWJ 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 MC9S08PA8VWJ reliable?
The price and inventory of MC9S08PA8VWJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08PA8VWJ is usually 5 days.
3.What payment methods are accepted for MC9S08PA8VWJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08PA8VWJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08PA8VWJ?
MC9S08PA8VWJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08PA8VWJ 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 MC9S08PA8VWJ?
For technical support, including MC9S08PA8VWJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08PA8VWJ requirements.
6.How does Aetrix verify that MC9S08PA8VWJ is sourced from the original manufacturer or authorized distributors?
All MC9S08PA8VWJ 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 MC9S08PA8VWJ meets industry standards.
7.What is the process for return or replacement of MC9S08PA8VWJ?
All MC9S08PA8VWJ units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08PA8VWJ, 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 MC9S08PA8VWJ part is unused and in its original packaging.
Return procedure for MC9S08PA8VWJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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