NXP Semiconductors MC9S08PT16VLD

Overview

MC9S08PT16VLD from NXP Semiconductors is an 8-bit S08 core microcontroller with 16 KB flash, 2 KB RAM, and 256 B EEPROM, operating at up to 20 MHz across –40 °C to 105 °C. It integrates ADC (12-channel, 12-bit), dual FTM modules (6+2 channels), I²C, two SCI/UARTs, SPI, RTC, TSI (16-electrode), and ACMP - deployed in industrial motor control, HVAC sensor nodes, and smart appliance UI subsystems.

For engineers reviewing the MC9S08PT16VLD datasheet, MC9S08PT16VLD pinout, MC9S08PT16VLD application, or MC9S08PT16VLD equivalent, key selection criteria include its 44-pin LQFP package, stop3-mode current of 1.35 µA at 5 V, 20 mA high-drive GPIO capability, and integrated touch-sensing interface supporting wake-from-stop operation.

Technical Context

The MC9S08PT16VLD implements an enhanced S08 CPU with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines a 31.25 kHz–20 MHz external crystal oscillator (XOSC) and an internal clock source (ICS) with FLL-based frequency multiplication and factory-trimmed reference yielding ±1% accuracy from 0 °C to 70 °C.

System protection includes independent watchdog timing, programmable low-voltage detect (LVD) with four warning thresholds (e.g., VLVDH = 4.3 V), illegal opcode/address detection, and flash/RAM access protection. Debug infrastructure features single-wire background debug (BKGD), three hardware breakpoints, and on-chip ICE with two comparators and nine trigger modes.

Key Specifications

Pinout & Package

MC9S08PT16VLD is packaged in a 44-pin LQFP (10 mm × 10 mm, 0.8 mm pitch) with exposed thermal pad. Pin assignments follow the MC9S08PT16 series standard layout, supporting multiplexed functions across Port A–E.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08PT16VLD, MC9S08PT16VLC offers identical functionality in a smaller footprint but sacrifices I/O count and ADC channels, while S9KEAZ128AMLH provides significantly higher processing capability and memory at the cost of legacy toolchain compatibility and missing touch-sensing hardware.

Availability

MC9S08PT16VLD is available at Aetrix Electronics and suitable for industrial motor control, HVAC sensor nodes, smart appliance UI subsystems, and PLC I/O modules requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MC9S08PT16VLD 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 MC9S08PT16 series was designed for cost-sensitive, low-power industrial and appliance control applications requiring robust analog integration, touch interface, and extended temperature operation - targeting replacement of discrete logic and legacy 8-bit platforms.

FAQ

What is the maximum operating frequency and voltage range for the MC9S08PT16VLD?

The MC9S08PT16VLD 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 this frequency using either internal trimming or external crystal reference, with ±1% accuracy from 0 °C to 70 °C.

Does the MC9S08PT16VLD support touch sensing, and how many electrodes can it handle?

Yes, the MC9S08PT16VLD includes a dedicated Touch Sense Interface (TSI) module supporting up to 16 external electrodes. It features configurable software or hardware scan triggers, full compatibility with NXP's touch sensing software library, and the ability to wake the MCU from stop3 mode - making it ideal for capacitive button and slider implementations in appliances and industrial HMI.

What are the low-power capabilities of the MC9S08PT16VLD, particularly in stop mode?

The MC9S08PT16VLD supports multiple low-power modes, with stop3 mode drawing only 1.35 µA at 5 V (and 1.3 µA at 3 V). In this mode, only the 1 kHz low-power oscillator remains active, yet peripherals like ADC, TSI, and LVD retain wake capability. Additional current adders apply for enabled features: +40 µA for ADC, +121 µA for TSI, and +128 µA for LVD.

Which package type does the MC9S08PT16VLD use, and what are its key mechanical characteristics?

The MC9S08PT16VLD uses a 44-pin LQFP package (10 mm × 10 mm body, 0.8 mm lead pitch) with an exposed thermal pad. This package includes dual VDD/VSS power pairs (pins 11, 27, 28) for improved noise immunity and thermal performance - a feature absent in smaller 32-pin and 20-pin variants of the same family.

How does the MC9S08PT16VLD handle system protection and fault recovery?

The MC9S08PT16VLD incorporates multiple hardware-level protections: an independent watchdog with its own clock source, programmable low-voltage detection (LVD) with four selectable thresholds and hysteresis, illegal opcode detection with automatic reset, and illegal address access detection. These features ensure deterministic fail-safe behavior in harsh industrial environments without software intervention.