NXP Semiconductors MC9S08PT16AVWJ

Overview

MC9S08PT16AVWJ 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 dual FlexTimer modules (6-channel + 2-channel), 12-bit 12-channel ADC, I²C, two SCI/UARTs, SPI, RTC, analog comparator, and touch-sensing interface (TSI), targeting embedded control in automotive body electronics and industrial sensor nodes.

For engineers reviewing the MC9S08PT16AVWJ datasheet, MC9S08PT16AVWJ pinout, MC9S08PT16AVWJ application, or MC9S08PT16AVWJ equivalent, key selection criteria include its 20-pin SOIC package, –40 °C to 105 °C extended temperature rating, on-chip ICE debug support, low-power stop3 mode (1.35 µA), and hardware-accelerated CRC module for firmware integrity verification.

Technical Context

The MC9S08PT16AVWJ implements an enhanced S08 CPU with four-level nested interrupt handling 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 frequency-locked-loop (FLL), enabling precise bus timing with ≤2% deviation over full temperature range.

Peripheral integration includes two independent FlexTimer modules supporting input capture, output compare, and edge-/center-aligned PWM; a 12-bit ADC with 2.5 µs conversion time, internal bandgap reference, and stop-mode operation; and a 16-electrode TSI module capable of waking the MCU from stop3 mode - all managed via a unified System Integration Module (SIM).

Key Specifications

Pinout & Package

MC9S08PT16AVWJ is housed in a 20-pin SOIC package (package code "WJ") with 18 GPIOs, including two true open-drain outputs (PTA2, PTA3), four ultra-high-current sink pins (20 mA), and dedicated BKGD/MS debug pin. Power pins include VDD/VSS (primary), VDDA/VSSA (analog), and dedicated reset (RESET) and oscillator (EXTAL/XTAL) terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08PT16AVWJ, S9S08PT16VWJ offers identical functionality with enhanced lifecycle support, while MC9S08AC128VWJ trades TSI/CRC for expanded memory - making the former ideal for design continuity and the latter for memory-constrained algorithmic workloads.

Availability

MC9S08PT16AVWJ is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, appliance motor control, and smart building panels requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC9S08PT16AVWJ 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 MC9S08PT16AVWJ belongs to NXP's S08PT family, designed specifically for cost-sensitive, low-power embedded control in harsh environments - emphasizing robustness, integrated peripherals, and simplified debug infrastructure.

FAQ

What is the maximum operating frequency of the MC9S08PT16AVWJ?

The MC9S08PT16AVWJ 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 is achieved using either the internal clock source (ICS) with frequency-locked-loop (FLL) or an external crystal oscillator (XOSC) operating between 4 MHz and 20 MHz. The 20 MHz specification is guaranteed under all rated conditions per NXP's Rev. 4 datasheet.

Does the MC9S08PT16AVWJ support in-circuit debugging?

Yes, the MC9S08PT16AVWJ includes a dedicated single-wire background debug interface (BKGD/MS pin) and an on-chip in-circuit emulator (ICE) debug module with two comparators and nine trigger modes. It supports up to three hardware breakpoints and full non-intrusive debugging - all accessible through standard NXP BDM tools. This capability is fully implemented in the MC9S08PT16AVWJ's 20-pin SOIC package without requiring additional pins or external circuitry.

What low-power modes are available on the MC9S08PT16AVWJ?

The MC9S08PT16AVWJ offers multiple low-power states, including reduced-power wait mode and stop3 mode. In stop3 mode - its deepest sleep state - the device draws only 1.35 µA at 5 V while retaining RAM content and enabling wake-up via TSI, RTC, or external interrupt. Additional current adders apply for active peripherals: ADC adds ~40 µA, TSI adds ~121 µA, and LVD adds ~128 µA - all measured at 5 V and –40 °C to 105 °C.

How many analog-to-digital converter (ADC) channels does the MC9S08PT16AVWJ have?

The MC9S08PT16AVWJ features a 12-bit successive-approximation ADC with 12 input channels (ADP0–ADP11), supporting 2.5 µs conversion time, internal bandgap reference, automatic compare function, and optional hardware triggering. According to Table 1 of the Rev. 4 datasheet, the MC9S08PT16AVWJ variant specifically implements all 12 ADC channels - unlike lower-pin-count variants (e.g., VWJ package) which retain full 12-channel capability despite having only 18 GPIOs.

Is the MC9S08PT16AVWJ qualified for automotive applications?

Yes, the MC9S08PT16AVWJ carries the "V" temperature grade (–40 °C to 105 °C) and is explicitly qualified for automotive body electronics per NXP's documentation. Its design includes automotive-grade ESD protection (±6 kV HBM), latch-up immunity (±100 mA), and robust power management features such as programmable low-voltage detection with hysteresis - all validated across the full operating range and referenced in the MC9S08PT16 Series Data Sheet Rev. 4.