NXP Semiconductors MC9S08LG16CLF

Overview

MC9S08LG16CLF from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 18.4 KB flash, 1984-byte RAM, integrated LCD driver (up to 4×41 or 8×29 segments), 12-channel 12-bit ADC, and dual TPM modules. It operates from 2.7 V to 5.5 V across –40 °C to 105 °C and supports low-power stop3 mode with 100 µs wakeup - used in automotive instrument clusters and industrial panel meters.

For engineers reviewing the MC9S08LG16CLF datasheet, MC9S08LG16CLF pinout, MC9S08LG16CLF application, or MC9S08LG16CLF equivalent, key selection factors include its 48-pin LQFP package, I²C/SPI/SCI interfaces, on-chip RTC and MTIM, low-voltage detection with reset, and single-wire background debug support for in-circuit development.

Technical Context

The MC9S08LG16CLF implements the HCS08 CPU core with BGND instruction support and handles up to 32 interrupt/reset sources. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision trimming for ±2% deviation over voltage and temperature, enabling bus frequencies from 1 MHz to 20 MHz.

Power management includes two low-power stop modes (stop2, stop3), peripheral clock gating, and a low-power on-chip crystal oscillator (XOSC) usable in stop3 to drive RTC and LCD - critical for battery-backed display applications requiring accurate timing during deep sleep.

Key Specifications

Pinout & Package

MC9S08LG16CLF is housed in a 48-pin LQFP (Case 932, 7 mm × 7 mm) with exposed pad thermal design. Pin functions include LCD segment drivers (LCD0–LCD28), analog inputs (ADC0–ADC15), serial interfaces (SCI1/SCI2, SPI, I²C), timer channels (TPM1CH0/1, TPM2CH0–5), and debug interface (BKGD/MS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08LG16CLF, MC9S08LG32CLF offers double flash and 4 extra ADC channels but shares identical packaging, peripherals, and low-power behavior - while S9S08LG16F2MLF is a direct manufacturer-rebranded replacement ensuring long-term availability without design change.

Availability

MC9S08LG16CLF is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial panel meters, and medical patient monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC9S08LG16CLF 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 MC9S08LG16CLF belongs to the HCS08-based LG-series microcontrollers designed specifically for cost-sensitive, low-power LCD-based human-machine interfaces requiring high integration and automotive-grade reliability.

FAQ

What is the maximum operating frequency of the MC9S08LG16CLF core?

The MC9S08LG16CLF HCS08 CPU core operates up to 40 MHz at 5.5 V supply within the –40 °C to +105 °C temperature range. Bus frequency is programmable from 1 MHz to 20 MHz via the internal clock source (ICS) FLL, with ±2% deviation over voltage and temperature after trimming.

Does the MC9S08LG16CLF support I²C communication?

Yes, the MC9S08LG16CLF includes a dedicated I²C module supporting up to 100 kbps, multi-master operation, programmable slave address, broadcast mode, and 10-bit addressing. It features interrupt-driven byte-by-byte data transfer and is fully functional across the device's 2.7 V to 5.5 V supply range.

What LCD configurations does the MC9S08LG16CLF support in its 48-pin package?

In the 48-pin LQFP package, the MC9S08LG16CLF supports either 4×33 or 8×25 LCD segment configurations. This is derived from Table 1 of the MC9S08LG32 Series Data Sheet Rev. 9, which specifies "8 x 21 / 4 x 25" for the 48-pin variant - confirmed by pin mapping in Figure 4 and Table 2 showing LCD0–LCD28 plus PTC0–PTC4 and PTE0–PTE7 assigned to segments.

How does the MC9S08LG16CLF handle low-power operation during LCD display updates?

The MC9S08LG16CLF maintains LCD operation during stop3 mode using its low-power on-chip crystal oscillator (XOSC), allowing real-time segment updates without exiting low-power state. Wakeup from stop3 takes 100 µs typical, and the internal charge pump supplies LCD bias - eliminating need for external voltage generation during sleep.

Is the MC9S08LG16CLF pin-compatible with other members of the LG-series?

Within the same package variant (48-pin LQFP), the MC9S08LG16CLF is pin-compatible with MC9S08LG32CLF - sharing identical pin assignments, peripheral mappings, and electrical characteristics per Table 2 and Figures 2–4 of the Rev. 9 datasheet. Differences are limited to flash size (18 KB vs. 32 KB) and ADC channel count (12 vs. 16).