NXP Semiconductors MC9S08PL8SCTG

Overview

MC9S08PL8SCTG from NXP Semiconductors is an 8-bit S08 core microcontroller with 8 KB flash, 1 KB RAM, and operation up to 20 MHz across 2.7–5.5 V supply range. It integrates a 12-channel 10-bit ADC, two FlexTimer modules (FTM0 and FTM2), SCI/I²C/ACMP/RTC peripherals, and supports low-power stop3 mode with 1.3 µA typical current. Used in embedded sensor interfaces and industrial control nodes requiring compact footprint and deterministic real-time response.

For engineers reviewing the MC9S08PL8SCTG datasheet, MC9S08PL8SCTG pinout, MC9S08PL8SCTG application, or MC9S08PL8SCTG equivalent, this page delivers verified technical context, package mapping to 16-pin TSSOP, validated pin functions, key electrical specs including LVD thresholds and bus timing, and two confirmed alternative parts for cost or availability trade-offs.

Technical Context

The MC9S08PL8SCTG implements an S08 CPU core with nested interrupt support (up to four levels) and integrated memory protection for flash and RAM. Its Internal Clock Source (ICS) uses a frequency-locked loop (FLL) with factory-trimmed internal reference (±0.2% resolution, ±1% deviation from 0°C to 70°C).

System-level interconnect enables hardware-triggered peripheral coordination-e.g., ADC conversion triggered by FTM overflow or SCI RxD edge-reducing software overhead in metering and motor control. Peripheral clock gating via PMC allows selective module disablement in stop3 mode while retaining RTC and ACMP operation.

Key Specifications

Pinout & Package

MC9S08PL8SCTG 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 MC9S08PL16SCTG, the 16 KB variant offers headroom for feature-rich firmware without changing PCB layout; versus S9S08PL8F2CTG, the original MC9S08PL8SCTG trades extended temperature and ESD margin for legacy toolchain compatibility and lower cost in commercial-grade applications.

Availability

MC9S08PL8SCTG is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, and motor control feedback units requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08PL8SCTG 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications.

The MC9S08PL series targets cost-sensitive, space-constrained embedded control applications requiring robust analog integration, low-power operation, and debug simplicity-especially in utility metering, appliance control, and sensor edge nodes.

FAQ

What is the maximum operating frequency of the MC9S08PL8SCTG?

The MC9S08PL8SCTG 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 +85°C). This frequency is achieved using either the internal ICS with FLL or an external crystal oscillator. The CPU executes instructions at bus speed, delivering deterministic real-time performance for control loops and communication protocols.

Does the MC9S08PL8SCTG support hardware debugging?

Yes, the MC9S08PL8SCTG includes a single-wire background debug interface accessible via the BKGD/MS pin (PTA4). It supports three hardware breakpoints and on-chip in-circuit emulation (ICE) with two comparators and nine trigger modes. This enables full in-system debugging without requiring additional pins or headers, simplifying PCB design for space-constrained applications.

What power-saving modes does the MC9S08PL8SCTG offer?

The MC9S08PL8SCTG provides multiple low-power modes: reduced-power wait mode and stop3 mode. In stop3, only the 1 kHz LPO clock remains active, yielding 1.3 µA typical supply current at 5 V. Peripheral clocks can be individually disabled via the PMC register, and modules like RTC, ACMP, and ADC retain limited functionality-enabling wake-up on external event or timer expiry without full system restart.

Can the MC9S08PL8SCTG operate from a 3.3 V supply?

Yes, the MC9S08PL8SCTG operates across a supply range of 2.7 V to 5.5 V, fully supporting 3.3 V nominal systems. All DC characteristics-including VOH, VOL, VIH, and VIL-are specified at both 3 V and 5 V. The internal voltage regulator and LVD circuitry function correctly at 3.3 V, and the ICS FLL maintains 20 MHz bus operation without external components.

How many ADC channels does the MC9S08PL8SCTG support?

The MC9S08PL8SCTG supports 12 ADC input channels (ADP0–ADP11) with 10-bit resolution and 2.5 µs conversion time. It includes an eight-level FIFO with watermark interrupt, automatic compare function, internal bandgap reference, and optional hardware trigger from FTM or SCI. The ADC operates in stop3 mode, enabling low-power sensor sampling without waking the CPU.