NXP Semiconductors MC9S08LG16CLH

Overview

MC9S08LG16CLH from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 18.4 KB flash, 1984-byte RAM, and integrated LCD driver supporting up to 4×41 or 8×29 segments. It operates from 2.7–5.5 V across –40 °C to 105 °C, features dual-clock architecture (XOSC + ICS), and targets low-power industrial and automotive instrumentation.

For engineers reviewing the MC9S08LG16CLH datasheet, MC9S08LG16CLH pinout, MC9S08LG16CLH application, or MC9S08LG16CLH equivalent, key selection criteria include its 48-pin LQFP package, 12-channel 12-bit ADC with temperature sensor, single-wire background debug interface, stop3 mode wakeup in 100 µs, and LIN-capable SCI peripherals.

Technical Context

The MC9S08LG16CLH implements the HCS08 CPU core with BGND instruction support and handles up to 32 interrupt/reset sources. Its clock system integrates a precision-trimmed internal clock source (ICS) delivering 1–20 MHz bus frequencies with ±2% deviation over voltage and temperature, plus an external crystal oscillator (XOSC) supporting 31.25 kHz–16 MHz.

Power management includes two low-power stop modes (stop2, stop3), peripheral clock gating, and a low-power on-chip crystal oscillator usable in stop3 for RTC and LCD timing. The device supports full debugging via single-wire BKGD interface with three comparators and eight-deep FIFO in the on-chip ICE module.

Key Specifications

Pinout & Package

MC9S08LG16CLH is housed in a 48-pin LQFP (Case 932, 7 mm × 7 mm) with exposed pad thermal design. Pin functions include multiplexed LCD segment/backplane drivers, 12 ADC inputs, dual SCI interfaces, SPI, I²C, TPM timers, KBI, IRQ, and dedicated reset/BKGD pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9KEAZ128AMLH and MC9S08LC32CLH, the MC9S08LG16CLH delivers optimal balance of LCD integration, ultra-low-power stop3 operation, and proven automotive qualification - making it the preferred choice for cost-sensitive, display-intensive embedded instruments where pin compatibility and minimal external components are mandatory.

Availability

MC9S08LG16CLH is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial panel meters, smart thermostats, and medical patient monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC9S08LG16CLH 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.

The MC9S08LG16CLH belongs to the legacy HCS08 microcontroller family designed specifically for cost-optimized, low-power, LCD-based human-machine interfaces in harsh environments.

FAQ

What is the maximum operating frequency of the MC9S08LG16CLH core?

The MC9S08LG16CLH HCS08 core operates at up to 40 MHz CPU frequency when supplied at 5.5 V within the –40 °C to 105 °C temperature range. Bus frequency is derived from the internal clock source (ICS) or external oscillator (XOSC), supporting configurable rates from 1 MHz to 20 MHz depending on configuration and voltage.

Does the MC9S08LG16CLH support in-circuit debugging?

Yes, the MC9S08LG16CLH includes a single-wire background debug (BKGD) interface on PTC5, enabling full in-circuit debugging with breakpoint setting, memory inspection, and register access. The on-chip ICE module provides three comparators, nine trigger modes, and an eight-deep FIFO for flow tracing - all accessible via standard Freescale/NXP debug tools.

What LCD configurations does the MC9S08LG16CLH support in its 48-pin package?

In the 48-pin LQFP package, the MC9S08LG16CLH supports either 4×33 or 8×21 LCD segment configurations. This is determined by the number of available segment (SEG) and backplane (BP) pins assigned across ports A, B, D, and C - with PTD0–PTD7, PTB0–PTB3, PTA0–PTA7, and PTC0–PTC4 allocated for LCD drive under specific initialization settings.

Can the MC9S08LG16CLH operate from a single 3.3 V supply?

Yes, the MC9S08LG16CLH operates across 2.7 V to 5.5 V, fully supporting 3.3 V nominal supply. All I/Os are 5 V tolerant when configured as inputs, and the internal voltage regulator maintains stable core voltage. The ICS module achieves ±2% frequency accuracy at 3.3 V, enabling reliable 16 MHz bus operation without external clock components.

Is the MC9S08LG16CLH qualified for automotive applications?

Yes, the MC9S08LG16CLH is AEC-Q100 qualified for Grade 2 (–40 °C to +105 °C) operation. It includes automotive-grade ESD protection (2500 V HBM), latch-up immunity (±100 mA), and built-in safety features including COP watchdog with independent 1 kHz clock, low-voltage detection with reset, and illegal opcode/address monitoring - all documented in the official Freescale MC9S08LG32 Series datasheet Rev. 9.