NXP Semiconductors MC9S08PT32AVLH

Overview

MC9S08PT32AVLH from NXP Semiconductors is an 8-bit S08 MCU with 32 KB flash, 4 KB RAM, and 256 B EEPROM, operating at up to 20 MHz across –40 °C to 105 °C. It integrates a 16-channel 12-bit ADC, three FlexTimer modules (6+2+2 channels), I²C, three SCI/LIN UARTs, two SPI interfaces, RTC, CRC, analog comparator, and TSI touch sensing-designed for automotive body control modules requiring robust low-power operation and mixed-signal integration.

For engineers reviewing the MC9S08PT32AVLH datasheet, MC9S08PT32AVLH pinout, MC9S08PT32AVLH application, or MC9S08PT32AVLH equivalent, this page delivers verified specifications, package mapping to 64-pin LQFP, validated peripheral timing, real-world use cases in automotive and industrial embedded systems, and two confirmed alternative parts with documented functional and packaging differences.

Technical Context

The MC9S08PT32AVLH uses an S08 CPU core with nested interrupt support (up to four levels) and on-chip ICE debug module featuring two comparators and nine trigger modes. Its clock system combines an external crystal oscillator (4–20 MHz) with an internal FLL-based ICS offering ±1% accuracy from 0 °C to 70 °C and ±2% over full temperature range.

Power management includes Stop3 mode with ~1.45 µA supply current (VDD = 5 V), plus configurable peripheral clock gating and low-voltage detection with programmable trip points. System protection comprises independent watchdog, illegal opcode/address detection, and flash/RAM access protection.

Key Specifications

Pinout & Package

MC9S08PT32AVLH is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the MC9S08PT60/PT32 family layout, supporting multiplexed functions including GPIO, peripheral signals, and debug interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08PT32AVLH, the MC9S08PT60AVLH provides 28 KB more flash while maintaining pin compatibility and identical peripheral configuration-ideal for firmware growth-whereas the S9KEAZN32ACLH trades S08 simplicity for ARM performance but removes TSI and alters register-level control, increasing porting effort.

Availability

MC9S08PT32AVLH is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and medical handheld devices requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.

Supply support for MC9S08PT32AVLH 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in microcontrollers, RF, and analog technologies.

The MC9S08PT32AVLH belongs to the S08PT family-designed specifically for cost-sensitive, low-power automotive and industrial control applications demanding integrated analog peripherals, robust debug, and extended temperature operation.

FAQ

What is the maximum operating frequency and voltage range for the MC9S08PT32AVLH?

The MC9S08PT32AVLH 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. Its internal clock source (ICS) with FLL achieves ±1% accuracy from 0 °C to 70 °C and ±2% across the full range. This makes MC9S08PT32AVLH suitable for under-hood automotive applications where thermal stability and wide voltage tolerance are essential.

Does the MC9S08PT32AVLH support touch sensing, and how many electrodes can it handle?

Yes, the MC9S08PT32AVLH integrates a Touch Sensing Interface (TSI) module supporting up to 16 external electrodes. It features configurable software or hardware scan triggering and full compatibility with NXP's official touch sensing software library. The TSI can wake the MCU from Stop3 mode, enabling ultra-low-power capacitive button or slider interfaces in battery-operated devices. This capability is confirmed in the MC9S08PT60 Series Data Sheet Rev. 6 for both MC9S08PT60A and MC9S08PT32A variants.

What debug interface does the MC9S08PT32AVLH provide, and what capabilities does it offer?

The MC9S08PT32AVLH features a single-wire background debug (BKGD) interface compliant with the HCS08 standard. It supports in-circuit debugging with three configurable breakpoints and an on-chip in-circuit emulator (ICE) module containing two comparators and nine trigger modes. This allows real-time code execution analysis, memory inspection, and non-intrusive trace-even during field firmware updates. The BKGD pin (PTA4) is output-only, ensuring debug stability without accidental GPIO conflicts.

How much flash, RAM, and EEPROM memory does the MC9S08PT32AVLH include?

The MC9S08PT32AVLH includes 32,768 bytes (32 KB) of on-chip flash memory, 4,096 bytes (4 KB) of RAM, and 256 bytes of EEPROM organized in 2-byte erase sectors. Flash supports read/program/erase operations across the full operating voltage (2.7–5.5 V) and temperature (–40 °C to 105 °C) range. EEPROM allows byte-level writes and retains data for >100,000 cycles-critical for storing calibration data, device IDs, or runtime configuration in MC9S08PT32AVLH-based systems.

What peripheral modules are integrated into the MC9S08PT32AVLH?

The MC9S08PT32AVLH integrates a comprehensive set of peripherals: 16-channel 12-bit ADC with hardware trigger and stop-mode operation; three FlexTimer modules (6+2+2 channels); two 8-bit modulo timers; 16-bit RTC; one I²C interface (400 kbps); three SCI/LIN-capable UARTs; one 16-bit and one 8-bit SPI; CRC module; analog comparator; and TSI. All are documented in the MC9S08PT60 Series Data Sheet Rev. 6 as shared across the PT32A and PT60A variants.