NXP Semiconductors MC9S08PA8VLDR
- Part No.:
- MC9S08PA8VLDR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
MC9S08PA8VLDR.pdf
- Description:
- MC9S0MICROCONTROLLE8-BIHC08/SCPU
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MC9S08PA8VLDR from NXP (formerly Freescale) is an 8-bit S08 microcontroller designed for cost-sensitive industrial and automotive control applications. It features 8 KB flash, 256-byte EEPROM, 2 KB RAM, operates at up to 20 MHz bus frequency across –40 °C to 105 °C, and integrates ADC, FTM timers, IIC, SCI, SPI, and analog comparator - enabling embedded motor control and sensor interface functions.
For engineers reviewing the MC9S08PA8VLDR datasheet, MC9S08PA8VLDR pinout, MC9S08PA8VLDR application, or MC9S08PA8VLDR equivalent, this page delivers verified technical context, validated pin assignments for the 44-pin LQFP package, real-world use cases in battery-powered control systems, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The MC9S08PA8VLDR implements an S08 CPU core with nested interrupt support (up to four levels) and 40 interrupt/reset sources. Its clock system combines a Pierce oscillator (31.25 kHz–20 MHz crystal/resonator) and an internal frequency-locked loop (FLL) with factory-trimmed reference yielding ±2% deviation over –40 °C to 105 °C.
System protection includes independent watchdog timer, low-voltage detection with programmable trip points (e.g., 4.2–4.4 V high-range detect), illegal opcode/address reset, and flash/RAM access protection. Debug is enabled via single-wire background debug interface with three breakpoints and on-chip ICE module.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 8-bit S08 CPU with up to 20 MHz bus frequency at 2.7–5.5 V supply |
| Memory | 8 KB flash (read/program/erase over full voltage/temperature), 256-byte EEPROM (2-byte erase sector), 2 KB RAM |
| ADC | 12-channel, 12-bit resolution, 2.5 µs conversion time, supports operation in stop mode |
| Timers | Two flex timer modules (FTM): one 6-channel and one 2-channel, each configurable for PWM, input capture, or output compare |
| Communication | IIC (up to 400 kbps), two SCI/UART (with LIN extension), one SPI (master/slave, full/single-wire) |
| Supply Current | 4.6 µA typical in Stop3 mode (1 kHz LPO active); 7.6 mA typical run current at 20 MHz/5 V with all modules on |
| Operating Temp | –40 °C to +105 °C ambient, qualified for automotive and industrial environments |
Pinout & Package
MC9S08PA8VLDR is packaged in a 44-pin LQFP (lead-free, RoHS-compliant) with 0.8 mm pitch and exposed thermal pad. Pin assignments follow the MC9S08PA16 Series Data Sheet Rev 2 (09/2014), where MC9S08PA8(A) shares identical pinout with MC9S08PA16(A) in the same package variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD powers digital logic; VSS is common reference for all I/O and analog sections |
| PTA0–PTA7 | General-purpose I/O port A | 8-bit port with keyboard interrupt capability (KBI), configurable pullups, and true open-drain option on PTA2/PTA3 |
| PTB0–PTB7 | General-purpose I/O port B | Includes ultra-high-current sink pins PTB4/PTB5 (20 mA source/sink), supporting direct LED or relay drive |
| PTC0–PTC7 | General-purpose I/O port C | Supports analog comparator inputs (ACMP+/-), ADC channel inputs, and FTM channel outputs |
| PTD0–PTD7 | General-purpose I/O port D | Includes ultra-high-current sink pins PTD0/PTD1 and SCI0/SCI1 transmit/receive signals |
| EXTAL/XTAL | External oscillator inputs | Accepts crystal or ceramic resonator (31.25 kHz–20 MHz); internal load caps and feedback resistor configured by RANGE/HGO bits |
| BKGD | Background debug pin | Single-wire interface for programming, breakpoint setting, and real-time trace via on-chip ICE module |
| RESET | Active-low reset input | Minimum 1.5 × tSelf_reset pulse width required; supports external reset and low-voltage reset assertion |
Key Features
| Feature | Design Value |
|---|---|
| Flash endurance | 100,000 program/erase cycles with data retention >20 years at 85 °C |
| EEPROM emulation | 256-byte EEPROM with 2-byte erase granularity and concurrent flash execution capability |
| Low-power operation | Stop3 mode draws only 4.6 µA (typical) with 1 kHz LPO clock active for RTC or wake-up timing |
| Analog integration | 12-bit ADC with internal bandgap reference, watermark buffers, and hardware-triggered conversions in stop mode |
| Peripheral clock gating | Peripheral clock enable register allows selective disabling of unused modules to reduce dynamic current in run/wait modes |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Brushless DC motor commutation in HVAC blowers or power seat actuators using hall-effect sensor feedback. IC Role / Device Role / Timing Role: MC9S08PA8VLDR executes closed-loop speed control, generates six-step PWM via FTM modules, and reads ADC-based current sense and temperature. Use Value: Integrated 20 mA sink pins drive gate drivers directly; Stop3 mode enables low-power wake-on-event for key-off monitoring. | Use Scenario: Central body controller managing door locks, window lifts, and mirror adjustment with LIN communication to slave nodes. IC Role / Device Role / Timing Role: MC9S08PA8VLDR acts as LIN master, processes switch inputs via KBI, controls relays via GPIO, and monitors battery voltage via ADC. Use Value: Built-in LIN extension in SCI modules eliminates external transceiver; -40 °C to 105 °C rating ensures reliability under hood conditions. |
| Smart Sensor Node | Energy-Efficient Appliance Control |
Use Scenario: Wireless sensor node collecting temperature, humidity, and motion data in building automation systems. IC Role / Device Role / Timing Role: MC9S08PA8VLDR interfaces analog sensors via ADC and ACMP, stores calibration data in EEPROM, and wakes periodically via RTC to sample and transmit. Use Value: 4.6 µA Stop3 current extends battery life; EEPROM retains calibration across power cycles without external memory. | Use Scenario: Washing machine main control board managing motor drive, water valve actuation, and user interface. IC Role / Device Role / Timing Role: MC9S08PA8VLDR coordinates multi-phase motor timing via FTM PWM, reads thermistor/pressure sensor ADC inputs, and drives display LEDs via high-sink GPIO. Use Value: Ultra-high-current GPIO pins (20 mA) drive LEDs and solenoids without external drivers; flash protection prevents firmware corruption during ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S08PA8VLD | Same die, identical pinout and peripherals; differs only in mask set revision (A vs. blank), with A version recommended for new designs per datasheet | No functional difference; both support same voltage/temp range, memory, and peripheral sets | Select MC9S08PA8VLDR for guaranteed Rev. 2+ mask set compliance and long-term availability |
| MC9S08QG8CDTE | 8 KB flash, but only 128-byte RAM and no EEPROM; lacks FTM2 module and has reduced ADC channels (8 vs. 12) | Suitable for simpler control tasks without complex timing or data logging; not drop-in due to fewer I/O and missing peripherals | Choose MC9S08QG8CDTE only if cost is primary constraint and full PA8 feature set is unnecessary |
Compared with S9S08PA8VLD, MC9S08PA8VLDR guarantees Rev. 2+ mask set qualification; compared with MC9S08QG8CDTE, it provides double RAM, integrated EEPROM, dual FTM modules, and full 12-channel ADC - essential for real-time control with data persistence.
Availability
MC9S08PA8VLDR is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart sensor nodes, and energy-efficient appliance control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC9S08PA8VLDR 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.
The MC9S08PA8VLDR belongs to the S08PA family, engineered for robust, low-cost 8-bit control in harsh environments - emphasizing flash reliability, mixed-signal integration, and ultra-low-power stop modes for battery-operated and automotive systems.
FAQ
What is the maximum bus frequency supported by the MC9S08PA8VLDR?
The MC9S08PA8VLDR supports a maximum bus frequency of 20 MHz across its full operating voltage range (2.7 V to 5.5 V) and temperature range (–40 °C to 105 °C). This frequency is achieved using the internal FLL with either internal or external reference, and is explicitly specified in the MC9S08PA16 Series Data Sheet Rev 2 for all PA8(A) variants including MC9S08PA8VLDR.
Does the MC9S08PA8VLDR include EEPROM, and what is its erase granularity?
Yes, the MC9S08PA8VLDR includes 256 bytes of EEPROM with 2-byte erase sector size. This allows fine-grained nonvolatile data updates without disturbing adjacent memory locations, and supports concurrent flash execution - meaning code can run from flash while EEPROM is being programmed or erased. The specification is confirmed in the "On-chip memory" section of the MC9S08PA16 Series Data Sheet Rev 2.
Which package type is used for the MC9S08PA8VLDR, and is its pinout compatible with other PA-series devices?
The MC9S08PA8VLDR uses a 44-pin LQFP package (designator "LD" per part numbering scheme). Its pinout is identical to MC9S08PA16VLDR in the same package, as confirmed by the shared "MC9S08PA16 Series Data Sheet" covering both MC9S08PA16(A) and MC9S08PA8(A) devices, including identical pin assignment tables and signal multiplexing definitions.
Can the MC9S08PA8VLDR operate in low-power modes while maintaining analog functionality?
Yes, the MC9S08PA8VLDR supports analog operation in Stop3 mode: the 12-bit ADC can perform conversions using the 1 kHz LPO clock, and the analog comparator remains active. The datasheet specifies ADC adder current of 40 µA in Stop3 mode and confirms "operation in stop mode" as a core ADC feature - enabling wake-on-analog-event functionality for battery-powered sensing.
What debug interface does the MC9S08PA8VLDR provide, and what capabilities does it support?
The MC9S08PA8VLDR provides a single-wire background debug (BKGD) interface compliant with the S08 architecture. It supports in-circuit programming, three hardware breakpoints, real-time trace via the on-chip ICE module (two comparators, nine trigger modes), and force-reset entry into debug mode. These capabilities are documented in the "Development support" section of the MC9S08PA16 Series Data Sheet Rev 2, which applies identically to MC9S08PA8VLDR.
MC9S08PA8VLDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 44-LQFP
- Series:
- S08
- Packaging:
- Tape & Reel (TR)
- 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:
- 37
- 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:
MC9S08PA8VLDR FAQ
1.How can I place an order for MC9S08PA8VLDR through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08PA8VLDR 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 MC9S08PA8VLDR reliable?
The price and inventory of MC9S08PA8VLDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08PA8VLDR is usually 5 days.
3.What payment methods are accepted for MC9S08PA8VLDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08PA8VLDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08PA8VLDR?
MC9S08PA8VLDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08PA8VLDR 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 MC9S08PA8VLDR?
For technical support, including MC9S08PA8VLDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08PA8VLDR requirements.
6.How does Aetrix verify that MC9S08PA8VLDR is sourced from the original manufacturer or authorized distributors?
All MC9S08PA8VLDR 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 MC9S08PA8VLDR meets industry standards.
7.What is the process for return or replacement of MC9S08PA8VLDR?
All MC9S08PA8VLDR units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08PA8VLDR, 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 MC9S08PA8VLDR part is unused and in its original packaging.
Return procedure for MC9S08PA8VLDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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