NXP Semiconductors MC9S08PA16VLD

Overview

MC9S08PA16VLD from NXP Semiconductors is an 8-bit S08 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, two SCI/LIN UARTs, I²C, SPI, RTC, and analog comparator - designed for automotive body control, industrial sensor nodes, and low-power embedded systems requiring mixed-signal integration and debug support.

For engineers reviewing the MC9S08PA16VLD datasheet, MC9S08PA16VLD pinout, MC9S08PA16VLD application, or MC9S08PA16VLD equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options - all grounded in Rev. 4 (03/2020) official documentation and NXP's ordering data.

Technical Context

The MC9S08PA16VLD implements an enhanced S08 CPU core 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 FLL-based frequency multiplication and factory-trimmed reference enabling ≤2% deviation over full temperature range.

System protection includes independent watchdog timer, programmable low-voltage detect (LVD) with four warning thresholds (2.56–4.8 V), illegal opcode/address detection, and flash/RAM access protection. Debug is supported via single-wire background debug interface (BKGD) with three breakpoints and on-chip ICE module featuring two comparators and nine trigger modes.

Key Specifications

Pinout & Package

MC9S08PA16VLD is packaged in a 44-pin LQFP (lead pitch: 0.8 mm, body: 10 × 10 mm). Pin assignments are defined per Table 9 ("Device pin assignment") and Figure 1 ("MCU block diagram") of Rev. 4 datasheet, with signal multiplexing confirmed for all ports (PTA–PTE).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9KEAZ128AMLH and MC9S08AC128CFUE, the MC9S08PA16VLD offers optimal balance of LIN support, compact 44-LQFP packaging, integrated RTC/ACMP, and ultra-low-power stop mode - making it uniquely suited for cost-constrained, mixed-signal automotive and industrial nodes where protocol specificity and footprint matter.

Availability

MC9S08PA16VLD is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and smart lighting controllers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature extremes.

Supply support for MC9S08PA16VLD 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 markets, with deep expertise in microcontrollers, RF, and analog technologies.

The MC9S08PA16 series belongs to NXP's legacy S08 8-bit MCU portfolio, engineered for cost-sensitive, reliability-critical embedded control applications demanding low power, mixed-signal integration, and robust debug infrastructure - particularly in automotive body electronics and industrial automation.

FAQ

What is the maximum operating frequency and voltage range for the MC9S08PA16VLD?

The MC9S08PA16VLD operates at up to 20 MHz bus frequency across a supply voltage range of 2.7 V to 5.5 V, with guaranteed performance over the full industrial temperature range of –40 °C to 105 °C. This specification is validated per Rev. 4 (03/2020) datasheet Section 6.2.1 and Table 7, confirming timing compliance at 20 MHz under worst-case voltage and temperature conditions.

Does the MC9S08PA16VLD support LIN communication, and which peripherals implement it?

Yes, the MC9S08PA16VLD supports LIN 2.1/2.2 via its two Serial Communication Interface (SCI) modules - specifically SCI0 and SCI1 - both featuring optional 13-bit break detection and NRZ framing required for LIN master/slave operation. This capability is documented in Section 7.4.2 of the datasheet and confirmed in Table 1 (Ordering Information) under "SCI (LIN Capable)".

What are the key low-power modes available on the MC9S08PA16VLD, and what is the typical current draw in Stop3 mode?

The MC9S08PA16VLD supports Stop3 mode with only the 1 kHz LPO clock active, drawing 1.35 µA at 5 V and 1.3 µA at 3 V (Table 5, Row 6). Additional modes include reduced-power Wait mode and peripheral clock gating - all enabling sub-µA system sleep states essential for battery-operated sensor nodes. These values are measured per datasheet Rev. 4, Section 6.1.2.

How many high-drive I/O pins does the MC9S08PA16VLD have, and what is their current rating?

The MC9S08PA16VLD features four ultra-high-current sink/source pins - PTB4, PTB5, PTD0, and PTD1 - each rated for 20 mA at 5 V or 10 mA at 3 V, with VOL ≤ 0.8 V under load (Table 3, DC Characteristics). These pins are explicitly designated in Section 2 ("Orderable part numbers") and Figure 1 ("MCU block diagram") of the datasheet.

Is the MC9S08PA16VLD pin-compatible with other members of the PA-series, such as MC9S08PA8VLD?

No, the MC9S08PA16VLD is not pin-compatible with MC9S08PA8VLD despite sharing the same 44-pin LQFP package - differences in peripheral allocation (e.g., ADC channel count, FlexTimer channel mapping) and GPIO count (37 vs. 28 in 44-LQFP variants) require PCB redesign. This is confirmed in Table 1 ("Ordering information"), where distinct GPIO counts are listed per part number and package combination.