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NXP Semiconductors MC9S08PA8AVTJ
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- Part No.:
- MC9S08PA8AVTJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC9S08PA8AVTJ.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,701
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Product details
Overview
MC9S08PA8AVTJ from NXP Semiconductors is an 8-bit S08 microcontroller designed for cost-sensitive industrial and automotive control applications. It features 8 KB flash, 2 KB RAM, 256 B EEPROM, operates at up to 20 MHz bus frequency across –40 °C to 105 °C, and integrates dual SCI (LIN-capable), I²C, SPI, two FTM modules, 12-channel 12-bit ADC, and analog comparator.
For engineers reviewing the MC9S08PA8AVTJ datasheet, MC9S08PA8AVTJ pinout, MC9S08PA8AVTJ application, or MC9S08PA8AVTJ equivalent, this page delivers verified specifications, package mapping to 20-pin TSSOP, validated peripheral configurations, and real-world use context for embedded motor control, sensor interface, and body electronics design.
Technical Context
The MC9S08PA8AVTJ implements the HCS08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines a Pierce oscillator (XOSC) supporting 4–20 MHz crystals and an internal clock source (ICS) with FLL-based frequency multiplication and 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 and hysteresis, illegal opcode/address detection, and flash/RAM access protection. Debug is enabled via single-wire background debug interface (BKGD) with three hardware breakpoints and on-chip ICE module.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU with four-level nested interrupts and 40 interrupt sources |
| Flash / RAM / EEPROM | 8 KB flash (read/program/erase over full voltage/temp), 2 KB RAM, 256 B EEPROM with 2-byte erase sectors |
| Max Bus Frequency | 20 MHz at 2.7–5.5 V supply, rated for –40 °C to 105 °C operating range |
| Analog Peripherals | 12-channel 12-bit ADC (2.5 µs conversion), one analog comparator with rising/falling edge interrupt and filtering |
| Communication Interfaces | Two LIN-capable SCI modules, one I²C (up to 400 kbps), one SPI (master/slave, full/single-wire) |
| Timers & Control | Two flex timer modules (6-channel + 2-channel), one 8-bit modulo timer, 16-bit RTC, CRC module |
| I/O & Drive Strength | 18 GPIOs (including 2 true open-drain, 4 ultra-high-current pins @ 20 mA sink/source) |
Pinout & Package
MC9S08PA8AVTJ is housed in a 20-pin Thin Shrink Small Outline Package (TSSOP) with 0.65 mm pitch, optimized for compact PCB layouts and automated assembly. Thermal resistance is 116 °C/W (single-layer board) and 76 °C/W (four-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0/KBI0P0/FTM0CH0/ACMP0/ADP0 | Port A bit 0 / Keyboard interrupt / FTM0 channel 0 / Analog comparator input 0 / ADC channel 0 | Multi-function pin supporting input capture, analog sensing, and wake-up from stop mode |
| PTA1/KBI0P1/FTM0CH1/ACMP1/ADP1 | Port A bit 1 / Keyboard interrupt / FTM0 channel 1 / Analog comparator input 1 / ADC channel 1 | Enables dual-input analog comparison and synchronized PWM generation |
| PTA2/KBI0P2/RxD0/SDA1 | Port A bit 2 / Keyboard interrupt / SCI0 receive / I²C data | True open-drain output supports I²C bus pull-up and level translation |
| PTA3/KBI0P3/TxD0/SCL1 | Port A bit 3 / Keyboard interrupt / SCI0 transmit / I²C clock | True open-drain output enables bidirectional I²C clock line operation |
| PTA4/ACMPO/BKGD/MS | Port A bit 4 / Analog comparator output / Background debug / Master select | Output-only pin used for debug entry and comparator status indication |
| PTA5/IRQ/TCLK0/RESET | Port A bit 5 / Interrupt request / Timer clock 0 / Reset input | Combines external interrupt, timer clocking, and reset assertion with internal pull-up |
| PTB0/KBI0P4/RxD0/ADP4 | Port B bit 0 / Keyboard interrupt / SCI0 receive / ADC channel 4 | Shared SCI and ADC input enables sensor UART-to-analog bridging |
| PTB1/KBI0P5/TxD0/ADP5 | Port B bit 1 / Keyboard interrupt / SCI0 transmit / ADC channel 5 | Supports simultaneous serial communication and analog monitoring |
| VDD / VSS | Power supply / Ground | Dual power pair (VDD/VSS) provides stable analog/digital domain separation |
| EXTAL / XTAL | External oscillator input / output | Connects to 4–20 MHz crystal or ceramic resonator for precise timing |
Key Features
| Feature | Design Value |
|---|---|
| Flash & EEPROM endurance | 100,000 program/erase cycles for flash; 100,000 erase cycles for EEPROM with 2-byte sector granularity |
| Low-power operation | Stop3 mode draws only 1.3 µA (typical) with 1 kHz LPO clock active; ADC and LVD adders increase current by ≤40 µA and ≤128 µA respectively |
| ADC performance | 12-bit resolution with 2.5 µs conversion time, internal bandgap reference, watermark buffering, and hardware-triggered operation in stop mode |
| Debug capability | Single-wire BKGD interface with three hardware breakpoints and on-chip ICE module supporting nine trigger modes and two comparators |
| System safety | Independent watchdog clock source, configurable LVD trip points (4 levels), illegal opcode/address detection with reset response |
Applications
| Motor Control Interface | Automotive Body Controller |
|---|---|
|
Use Scenario: Driving brushed DC motors in HVAC actuators or seat positioners using PWM outputs and current feedback. IC Role / Device Role / Timing Role: MCU executes closed-loop speed control, reads analog current sense and potentiometer inputs, generates center-aligned PWM via FTM modules. Use Value: Integrated 12-bit ADC (2.5 µs), dual FTM with edge/center-aligned PWM, and 20 mA high-drive pins eliminate external drivers for small-motor gate control. |
Use Scenario: Managing door lock, window lift, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Central controller coordinating LIN/SCI communication with master ECU, polling switches via KBI, driving relays and LEDs through GPIO. Use Value: Two LIN-capable SCI modules enable daisy-chain topology; 18 GPIOs include 4 ultra-high-current pins for direct relay coil drive without external transistors. |
| Sensor Signal Conditioning | Industrial Temperature Monitor |
|
Use Scenario: Converting thermistor, RTD, or analog sensor outputs into digital values for local display or CAN gateway forwarding. IC Role / Device Role / Timing Role: Front-end signal conditioner acquiring analog inputs, applying digital filtering, and transmitting processed data via I²C or SPI to host processor. Use Value: On-chip 12-channel 12-bit ADC with internal bandgap reference ensures stable measurements across temperature; ACMP provides zero-crossing detection for AC sensor signals. |
Use Scenario: Monitoring ambient or enclosure temperature in PLCs, power supplies, or battery management systems with local alarm triggering. IC Role / Device Role / Timing Role: Standalone temperature logger using ADC channel with thermistor, RTC for timestamping, and LVD for brownout-safe data retention. Use Value: RTC maintains time during stop3 mode (1.3 µA); LVD with four warning thresholds enables progressive shutdown before critical voltage loss; EEPROM stores calibration constants non-volatilely. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08PA16AVTJ | 16 KB flash, same 20-pin TSSOP package, identical peripherals and pinout; higher memory for larger firmware or data logging | Preferred where extended code space or EEPROM-backed configuration storage is required without layout change | Select when future firmware growth or OTA update capability demands >8 KB flash; no PCB revision needed |
| S9KEAZ128AMLH | ARM Cortex-M0+ core, 128 KB flash, 16 KB RAM, 16-bit ADC, but different architecture, toolchain, and pinout | Targets migration path to 32-bit performance while retaining similar peripheral count and package footprint | Choose for new designs requiring higher compute throughput, USB, or enhanced security; requires full hardware and software redesign |
Compared with MC9S08PA8AVTJ, MC9S08PA16AVTJ offers double flash capacity in identical packaging-ideal for firmware scalability-while S9KEAZ128AMLH provides ARM-based upgrade potential at the cost of architectural discontinuity and layout rework.
Availability
MC9S08PA8AVTJ is available at Aetrix Electronics and suitable for motor control interface, automotive body electronics, sensor signal conditioning, and industrial temperature monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC9S08PA8AVTJ 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, IoT, mobile, and communication infrastructure markets.
The MC9S08PA series targets cost-optimized, functionally safe embedded control in harsh environments-designed specifically for automotive body electronics, industrial sensors, and appliance control where reliability, low power, and peripheral integration are critical.
FAQ
What is the maximum operating frequency and voltage range for the MC9S08PA8AVTJ?
The MC9S08PA8AVTJ operates at up to 20 MHz bus frequency across a supply voltage range of 2.7 V to 5.5 V and is rated for continuous operation from –40 °C to 105 °C. This specification is guaranteed per the datasheet's electrical characteristics table under "Operating voltage" and thermal ratings section for V-grade parts.
Does the MC9S08PA8AVTJ support in-circuit debugging, and what interface is used?
Yes, the MC9S08PA8AVTJ supports in-circuit debugging via a single-wire background debug interface (BKGD) on PTA4. It includes three hardware breakpoints and an on-chip in-circuit emulator (ICE) module with two comparators and nine trigger modes, enabling full visibility into program flow and register states during development.
How many analog-to-digital converter channels does the MC9S08PA8AVTJ have, and what is its resolution?
The MC9S08PA8AVTJ integrates a 12-channel, 12-bit successive approximation ADC with 2.5 µs conversion time. It supports internal bandgap reference, optional hardware triggering, data buffering with watermark, and automatic compare functions-all operational in stop3 mode when configured appropriately.
What package type and pin count does the MC9S08PA8AVTJ use?
The MC9S08PA8AVTJ is supplied in a 20-pin Thin Shrink Small Outline Package (TSSOP) with 0.65 mm lead pitch. This package is confirmed in Table 1 (Ordering Information) and Section 3.3 (Part identification fields) of the MC9S08PA16 Series Data Sheet, where "TJ" denotes the 20-TSSOP option.
Can the MC9S08PA8AVTJ operate in low-power modes, and what is the lowest current consumption?
Yes, the MC9S08PA8AVTJ supports multiple low-power modes including Stop3, which draws just 1.3 µA (typical) with only the 1 kHz LPO clock active. Additional peripherals like ADC or LVD can be enabled in Stop3, adding ≤40 µA or ≤128 µA respectively-values verified in Table 5 (Supply current characteristics) of the datasheet.
MC9S08PA8AVTJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- S08
- Packaging:
- Tube
- 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:
MC9S08PA8AVTJ FAQ
1.How can I place an order for MC9S08PA8AVTJ through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08PA8AVTJ 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 MC9S08PA8AVTJ reliable?
The price and inventory of MC9S08PA8AVTJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08PA8AVTJ is usually 5 days.
3.What payment methods are accepted for MC9S08PA8AVTJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08PA8AVTJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08PA8AVTJ?
MC9S08PA8AVTJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08PA8AVTJ 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 MC9S08PA8AVTJ?
For technical support, including MC9S08PA8AVTJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08PA8AVTJ requirements.
6.How does Aetrix verify that MC9S08PA8AVTJ is sourced from the original manufacturer or authorized distributors?
All MC9S08PA8AVTJ 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 MC9S08PA8AVTJ meets industry standards.
7.What is the process for return or replacement of MC9S08PA8AVTJ?
All MC9S08PA8AVTJ units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08PA8AVTJ, 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 MC9S08PA8AVTJ part is unused and in its original packaging.
Return procedure for MC9S08PA8AVTJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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