NXP Semiconductors MC9S08PA8AVLD

Overview

MC9S08PA8AVLD from NXP Semiconductors is an 8-bit S08 microcontroller designed for cost-sensitive, low-power embedded control applications. It features 8 KB flash, 2 KB RAM, 256 B EEPROM, 12-bit ADC (12-channel), two FTM modules (6+2 channels), dual SCI/LIN interfaces, I²C, SPI, RTC, and operates at up to 20 MHz across –40 °C to 105 °C. It targets industrial sensor nodes, motor control subsystems, and appliance UI controllers.

For engineers reviewing the MC9S08PA8AVLD datasheet, MC9S08PA8AVLD pinout, MC9S08PA8AVLD application, or MC9S08PA8AVLD equivalent, this page delivers verified specifications, package mapping, peripheral roles, real-world use cases, and validated alternative parts - all confirmed against the official MC9S08PA16 Series Data Sheet Rev. 4 (03/2020), which explicitly covers MC9S08PA8A variants including VLD.

Technical Context

The MC9S08PA8AVLD implements the S08 CPU core with nested interrupt support (up to four levels) and 40 interrupt/reset sources. Its clock system integrates both an external crystal oscillator (31.25 kHz–20 MHz) and an internal clock source (ICS) with frequency-locked-loop (FLL), enabling precise 1% accuracy over 0–70 °C and 2% over full operating range.

System-level protection includes independent watchdog timer, programmable low-voltage detect (LVD) with reset/interrupt, illegal opcode/address detection, and flash/RAM access protection. Debug is supported via single-wire background debug interface (BDM) with three breakpoints and on-chip ICE module featuring two comparators and nine trigger modes.

Key Specifications

Pinout & Package

MC9S08PA8AVLD is housed in a 44-pin LQFP package (10 mm × 10 mm, 0.8 mm pitch) with exposed pad for thermal performance. Pin assignments are fully compatible with the MC9S08PA16A family per the official datasheet, supporting identical signal multiplexing and peripheral mapping.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with MC9S08PA8AVLD, MC9S08PA16AVLD offers double flash capacity with zero hardware change, while S9KEAZ128AMLH provides architectural upgrade path at the cost of redesign and toolchain migration - making MC9S08PA8AVLD optimal for stable, cost-constrained 8-bit control.

Availability

MC9S08PA8AVLD is available at Aetrix Electronics and suitable for industrial sensor nodes, appliance UI controllers, BLDC motor subsystems, and smart power outlets requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC9S08PA8AVLD 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 MC9S08PA series is part of NXP's legacy S08 portfolio, engineered for robust, low-cost 8-bit control in harsh environments - emphasizing reliability, integrated analog, and ultra-low-power operation for resource-constrained embedded systems.

FAQ

What is the maximum operating frequency and voltage range for the MC9S08PA8AVLD?

The MC9S08PA8AVLD 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 confirmed in Table 1 (Ordering Information) and Section 6.2.1 (Control Timing) of the MC9S08PA16 Series Data Sheet Rev. 4, which explicitly covers MC9S08PA8A variants including VLD.

Does the MC9S08PA8AVLD support in-circuit debugging, and what interface is used?

Yes, the MC9S08PA8AVLD supports in-circuit debugging via a single-wire background debug interface (BDM) with three hardware breakpoints and an on-chip in-circuit emulator (ICE) module containing two comparators and nine trigger modes. This is documented in the "Development support" section of the MC9S08PA16 Series Data Sheet Rev. 4, which applies identically to MC9S08PA8A devices.

How much flash memory and RAM does the MC9S08PA8AVLD contain?

The MC9S08PA8AVLD contains 8,192 bytes (8 KB) of on-chip flash memory and 2,048 bytes (2 KB) of RAM, as specified in Table 1 (Ordering Information) of the MC9S08PA16 Series Data Sheet Rev. 4. Both memory blocks support read/program/erase operations across the full operating voltage and temperature range.

What package type and pin count does the MC9S08PA8AVLD use?

The MC9S08PA8AVLD uses a 44-pin LQFP package (10 mm × 10 mm, 0.8 mm pitch), as confirmed in Table 1 (Ordering Information) and Section 8 (Dimensions) of the MC9S08PA16 Series Data Sheet Rev. 4. This package supports 37 GPIOs and matches the pinout of MC9S08PA16AVLD for direct footprint compatibility.

Which analog peripherals are integrated into the MC9S08PA8AVLD?

The MC9S08PA8AVLD integrates a 12-channel, 12-bit ADC with 2.5 µs conversion time and internal bandgap reference, plus one analog comparator (ACMP) with separately configurable rising/falling edge interrupts and filtering. These are detailed in the "Peripherals" section and Table 1 of the MC9S08PA16 Series Data Sheet Rev. 4, applicable to all PA8A variants.