NXP Semiconductors MC9S08PA4AVTGR

Overview

MC9S08PA4AVTGR from NXP Semiconductors is an 8-bit S08 microcontroller with 4 KB flash, 512 byte RAM, and 128 byte EEPROM, operating up to 20 MHz across 2.7–5.5 V and –40°C to +105°C. It integrates an 8-channel 12-bit ADC, three 2-channel FlexTimer modules, SCI/UART with LIN support, RTC, analog comparator, and keyboard interrupt module - deployed in automotive body control modules, industrial sensor nodes, and smart appliance controllers.

For engineers reviewing the MC9S08PA4AVTGR datasheet, MC9S08PA4AVTGR pinout, MC9S08PA4AVTGR application, or MC9S08PA4AVTGR equivalent, this page delivers verified electrical specs, package mapping (16-pin TSSOP), validated peripheral timing, real-world use cases, and two confirmed alternative parts for design continuity and sourcing flexibility.

Technical Context

The MC9S08PA4AVTGR implements an S08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines a Pierce external oscillator (31.25 kHz–20 MHz) and an internal clock source (ICS) with FLL, enabling precise 1% internal reference accuracy over 0°C–70°C.

System protection includes independent watchdog timer, programmable low-voltage detect/warning with hysteresis, illegal opcode/address detection, and flash/RAM access protection. Debug is enabled via single-wire background debug interface with three breakpoints and on-chip ICE module featuring two comparators and nine trigger modes.

Key Specifications

Pinout & Package

MC9S08PA4AVTGR is packaged in a 16-pin TSSOP (CC = TG per part number format), with 3.0 mm × 4.4 mm footprint, 0.65 mm pitch, and exposed pad for thermal performance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08PA4AVTGR, MC9S08PA8AVTGR offers double flash capacity in identical 16-pin TSSOP packaging for seamless upgrade, while S9KEAZ128AMLH provides ARM-based scalability at the cost of increased active current and layout revision.

Availability

MC9S08PA4AVTGR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and smart appliance controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC9S08PA4AVTGR 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 edge processing.

The MC9S08PA series targets cost-sensitive, reliability-critical embedded systems in automotive and industrial markets, emphasizing low-power operation, robust peripheral integration, and extended temperature support.

FAQ

What is the maximum bus frequency supported by the MC9S08PA4AVTGR?

The MC9S08PA4AVTGR supports a maximum bus frequency of 20 MHz across its full operating voltage range (2.7–5.5 V) and temperature range (–40°C to +105°C). This is achieved using either the internal clock source (ICS) with FLL or the external oscillator (XOSC) with crystal/resonator up to 20 MHz. The device maintains timing compliance under all specified conditions per Rev. 10 datasheet Table 7.

Does the MC9S08PA4AVTGR support in-circuit debugging, and what interface is used?

Yes, the MC9S08PA4AVTGR supports in-circuit debugging via a single-wire background debug interface (BKGD/MS pin). It includes breakpoint capability for up to three breakpoints and an on-chip in-circuit emulator (ICE) debug module with two comparators and nine trigger modes. This allows full visibility into program flow and register states without halting real-time peripheral operation.

What are the key low-power features of the MC9S08PA4AVTGR?

The MC9S08PA4AVTGR features a low-power stop3 mode drawing just 1.5 µA (typical) with only the 1 kHz LPO clock active, plus reduced-power wait mode and peripheral clock gating via the peripheral clock enable register. These features enable multi-year battery life in sensor nodes. Additionally, the ADC and ACMP remain functional in stop3 mode, allowing event-triggered wake-up without full CPU restart.

Which pins on the MC9S08PA4AVTGR support 20 mA drive strength?

Only PTB4 and PTB5 on the MC9S08PA4AVTGR support ultra-high-current drive of 20 mA sink/source. These pins are designated as FTM1CH03 and FTM1CH13 respectively and are explicitly characterized for 20 mA operation in both 3 V and 5 V supply conditions per datasheet Table 3. Other GPIOs are rated for standard 5–10 mA drive.

Is the MC9S08PA4AVTGR qualified for automotive applications?

Yes, the MC9S08PA4AVTGR is AEC-Q100 qualified for automotive applications. Its V-grade temperature range (–40°C to +105°C), integrated watchdog with independent clock, programmable low-voltage detection, and robust EMC performance (IEC 61967-2 compliant) meet requirements for body electronics and chassis subsystems. The part number suffix "V" explicitly denotes automotive temperature qualification.