NXP Semiconductors MC9S08PT8AVLC

Overview

MC9S08PT8AVLC 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), targeting embedded control in automotive body electronics and industrial sensors.

For engineers reviewing the MC9S08PT8AVLC datasheet, MC9S08PT8AVLC pinout, MC9S08PT8AVLC application, or MC9S08PT8AVLC equivalent, this page delivers verified specifications, validated package mapping (32-pin LQFP), confirmed peripheral set, real-world use cases, and two technically documented alternative parts - all grounded in the official MC9S08PT16 Series Data Sheet Rev. 4 (03/2020).

Technical Context

The MC9S08PT8AVLC implements an enhanced S08 CPU core with nested interrupt support (up to four levels) and 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 and ±2% over full temperature range.

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 debug interface (BDM) with three breakpoints and on-chip ICE module supporting nine trigger modes.

Key Specifications

Pinout & Package

MC9S08PT8AVLC is housed in a 32-pin LQFP package (10 mm × 10 mm, 0.8 mm pitch) with exposed thermal pad. Pin assignments follow the MC9S08PT16 family layout; the 32-pin variant omits pins present only in 44-pin packages (e.g., secondary VDD/VSS pairs, PTD4–PTD7, PTE4).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08PT8AVLC, MC9S08PT16AVLC offers double flash capacity in identical packaging for seamless firmware expansion, while S9KEAZ128AMLH provides ARM-based performance and memory scaling at the cost of architectural discontinuity and toolchain migration effort.

Availability

MC9S08PT8AVLC is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, appliance motor control, and smart HVAC actuator designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC9S08PT8AVLC 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 and mixed-signal integration.

The MC9S08PT8AVLC belongs to NXP's S08 PT-series, designed specifically for cost-sensitive, low-power embedded control applications demanding robust analog integration, LIN/UART communication, and extended temperature reliability in harsh environments.

FAQ

What is the maximum operating frequency and voltage range for the MC9S08PT8AVLC?

The MC9S08PT8AVLC operates at up to 20 MHz bus frequency across a supply voltage range of 2.7 V to 5.5 V, fully specified over the industrial temperature range of –40 °C to 105 °C. This allows direct interfacing with 3.3 V and 5 V systems without level-shifting, and supports high-speed real-time control loops in demanding environments.

Does the MC9S08PT8AVLC support in-circuit debugging, and what interface is used?

Yes, the MC9S08PT8AVLC supports in-circuit debugging via a single-wire background debug interface (BDM). It includes breakpoint capability for up to three 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 much flash memory and RAM does the MC9S08PT8AVLC contain?

The MC9S08PT8AVLC contains 8,192 bytes (8 KB) of on-chip flash memory, 2,048 bytes (2 KB) of RAM, and 256 bytes of EEPROM. Flash supports read-while-write and erase-while-execute operations, and EEPROM features 2-byte erase sectors - enabling reliable data logging and parameter storage in field-deployed systems.

What peripheral interfaces are integrated into the MC9S08PT8AVLC?

The MC9S08PT8AVLC integrates I²C (400 kbps), two SCI/UART modules (one LIN-capable), one SPI, two FlexTimer modules (6+2 channels), a 12-channel 12-bit ADC, analog comparator, 16-bit RTC, CRC module, and touch-sensing interface (TSI) supporting up to 16 electrodes - delivering comprehensive mixed-signal control in a single chip.

Is the MC9S08PT8AVLC pin-compatible with other devices in the PT-series?

Yes, the MC9S08PT8AVLC shares identical pinout and package (32-pin LQFP) with MC9S08PT16AVLC, enabling direct drop-in replacement where increased flash capacity is needed. Both parts maintain consistent peripheral mapping, register layout, and electrical characteristics - simplifying design reuse and firmware porting within the PT-family.