NXP Semiconductors MC9S08PA4AVTG

Overview

MC9S08PA4AVTG from NXP Semiconductors is an 8-bit S08 microcontroller featuring a 20 MHz bus frequency, 4 KB flash, 512 byte RAM, and 128 byte EEPROM, operating across –40 °C to +105 °C at 2.7–5.5 V. 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 industrial sensor nodes and motor control interfaces.

For engineers reviewing the MC9S08PA4AVTG datasheet, MC9S08PA4AVTG pinout, MC9S08PA4AVTG application, or MC9S08PA4AVTG equivalent, key selection criteria include its 16-TSSOP package, ultra-high-current sink pins (PTB4/PTB5), single-wire background debug interface, stop3 mode current of 1.5 µA at 5 V, and FLL-based clock system supporting 31.25 kHz–20 MHz oscillators.

Technical Context

The MC9S08PA4AVTG implements an S08 CPU core with four-level nested interrupt handling and up to 40 interrupt/reset sources. Its clock architecture combines an external Pierce oscillator (XOSC) for 31.25 kHz–20 MHz crystals/resonators and an internal clock source (ICS) with frequency-locked-loop (FLL) and factory-trimmed reference enabling ±1% accuracy from 0 °C to 70 °C.

System protection includes independent watchdog timer, programmable low-voltage detect (LVD) with four warning thresholds per range, illegal opcode/address detection, and flash/RAM access protection. Peripheral operation supports ADC conversion in stop mode, ACMP filtering, and FTM channels configurable for input capture, output compare, or edge-/center-aligned PWM.

Key Specifications

Pinout & Package

MC9S08PA4AVTG is housed in a 16-pin thin shrink small-outline package (TSSOP) with 0.65 mm pitch, JEDEC MO-153 compliant, thermal resistance R_θJA = 130 °C/W on single-layer board.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08PA4AVWJ, MC9S08PA4AVTG trades 4 GPIOs and 2 KBI inputs for 25% smaller PCB area and lower thermal resistance on dense layouts; versus S9KEAZ128AMLH, it delivers deterministic real-time response at <1/3 the active power and BOM cost for fixed-function embedded tasks.

Availability

MC9S08PA4AVTG is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, smart appliance UIs, and automotive body controllers requiring stable component supply across extended temperature ranges.

Supply support for MC9S08PA4AVTG 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 systems.

The MC9S08PA series targets cost-optimized, low-power 8-bit control in space-constrained industrial and automotive subsystems, emphasizing robust peripheral integration, debug accessibility, and extended temperature reliability.

FAQ

What is the maximum operating frequency and voltage range for MC9S08PA4AVTG?

The MC9S08PA4AVTG operates at up to 20 MHz bus frequency across a supply voltage range of 2.7 V to 5.5 V and an ambient temperature range of –40 °C to +105 °C. This specification is guaranteed by production testing (P-class) and applies to all functional blocks including flash execution, ADC conversion, and FTM modulation - enabling reliable real-time control in harsh environments without derating.

Does MC9S08PA4AVTG support in-circuit debugging, and what interface does it use?

Yes, MC9S08PA4AVTG supports in-circuit debugging via a single-wire background debug interface using the BKGD/MS pin. It provides three hardware breakpoints and integrates an on-chip in-circuit emulator (ICE) with two comparators and nine trigger modes - allowing full visibility into program flow, register states, and peripheral behavior without halting real-time operation.

How many analog-to-digital converter (ADC) channels does MC9S08PA4AVTG have, and what is its resolution?

The MC9S08PA4AVTG features an 8-channel, 12-bit successive approximation ADC with 2.5 µs conversion time, internal bandgap reference, optional hardware triggering, and data buffering with watermark capability. All eight channels (ADP0–ADP7) are accessible across the 16-pin TSSOP package, and the ADC remains operational in stop3 mode for low-power sensor sampling.

What are the ultra-high-current sink capabilities of MC9S08PA4AVTG, and which pins provide them?

MC9S08PA4AVTG provides two ultra-high-current sink pins: PTB4 and PTB5, each capable of sinking up to 20 mA at VDD = 5 V. These pins are designated FTM1CH03 and FTM1CH13 respectively, and support direct drive of LEDs, relays, or optocouplers without external buffers - verified per Table 3 DC characteristics and Figure 8 IOL vs. VOL curves.

Is MC9S08PA4AVTG qualified for automotive applications, and what temperature grade does it carry?

MC9S08PA4AVTG carries the 'V' temperature grade, specifying operation from –40 °C to +105 °C - qualifying it for under-hood and cabin automotive body control modules, including door modules and HVAC actuators. It meets AEC-Q100 stress test requirements per NXP qualification documentation and includes automotive-grade LVD, watchdog, and ESD protection (±6 kV HBM).