NXP Semiconductors MC9S08LL16CLH

Overview

MC9S08LL16CLH from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB dual-array Flash, 2.08 KB RAM, and integrated LCD driver supporting 8×24 segments. It operates at up to 20 MHz across 1.8–3.6 V and –40°C to +85°C, featuring 38 GPIOs, 12-bit ADC, analog comparator, SPI/I²C/SCI interfaces, and low-power stop3 mode consuming 400 nA. It targets battery-powered LCD instrumentation and industrial control panels.

For engineers reviewing the MC9S08LL16CLH datasheet, MC9S08LL16CLH pinout, MC9S08LL16CLH application, or MC9S08LL16CLH equivalent, key selection criteria include its QFN-48 package with exposed pad, 12-bit ADC with temperature sensor and stop3 operation, dual TPM modules for PWM generation, on-chip ICE debug support, and verified 0.2% internal clock accuracy over voltage and temperature.

Technical Context

The MC9S08LL16CLH 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) trimmed for ±2% deviation over temperature and supply, enabling stable 1–10 MHz bus frequencies without external crystal in many applications.

Peripherals include a dedicated Time-of-Day (TOD) module with 1 kHz low-power oscillator for wake-up scheduling, two 2-channel TPMs supporting edge- or center-aligned PWM, and an LCD driver with internal charge pump and programmable contrast via bandgap reference trimming - all functional in stop3 mode with 6 µs wake-up time.

Key Specifications

Pinout & Package

MC9S08LL16CLH is housed in a 48-pin QFN package (9×9 mm body, 0.5 mm pitch) with exposed thermal pad, documented under package code 98ASA00466D. The package supports copper-wire bonding and requires solder paste stencil design per EB806 guidelines for exposed-pad reliability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08LL16CLH, MC9S08AC16CFGE offers identical core and memory but lacks LCD integration and uses LQFP packaging, while S9KEAZ128AMLH delivers significantly higher compute throughput and peripheral count at the cost of increased power and software complexity - making MC9S08LL16CLH optimal for cost-sensitive, LCD-centric, ultra-low-power embedded instrumentation.

Availability

MC9S08LL16CLH is available at Aetrix Electronics and suitable for smart utility meters, industrial HMI panels, and portable medical devices requiring stable component supply, long-term lifecycle assurance, and automotive-grade qualification (AEC-Q100 qualified per datasheet).

Supply support for MC9S08LL16CLH 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 delivering secure, energy-efficient solutions for automotive, industrial, IoT, and communication infrastructure markets.

The MC9S08LL16CLH belongs to NXP's legacy HCS08 microcontroller family, designed specifically for ultra-low-power, LCD-integrated applications in battery-operated instrumentation and industrial controls where cost, size, and power efficiency are critical.

FAQ

What is the operating voltage range of the MC9S08LL16CLH?

The MC9S08LL16CLH operates from 1.8 V to 3.6 V across the full industrial temperature range (–40°C to +85°C). This wide supply range supports direct connection to single-cell Li-ion batteries (nominal 3.7 V, discharged to ~2.5 V) or dual-cell alkaline systems (3.0 V fresh, down to 1.8 V cutoff), enabling flexible power architecture design without external regulators in many applications. The MC9S08LL16CLH maintains full functionality including ADC, LCD, and debug interface across this entire range.

Does the MC9S08LL16CLH support debugging in-circuit?

Yes, the MC9S08LL16CLH features a single-wire background debug (BKGD) interface on PTC6, enabling full in-circuit debugging without halting real-time operation. The on-chip ICE debug module provides three comparators, nine trigger modes, and an eight-deep FIFO for change-of-flow address capture. The MC9S08LL16CLH supports one hardware breakpoint during active debugging plus two additional breakpoints within the debug module - essential for validating timing-critical firmware in battery-powered systems.

Can the MC9S08LL16CLH drive an LCD without external components?

Yes, the MC9S08LL16CLH integrates a full LCD driver supporting up to 8×24 segments (192 segments) with an internal charge pump and programmable LCD reference voltage. The MC9S08LL16CLH allows contrast adjustment via trimming of the internal bandgap reference, eliminating the need for external resistors or bias ICs. This integrated solution reduces BOM cost and PCB area while maintaining display stability across temperature and battery voltage variations.

What low-power modes does the MC9S08LL16CLH offer?

The MC9S08LL16CLH provides multiple low-power modes: reduced-power wait, low-power run/wait, stop2 (350 nA typical), and stop3 (400 nA typical). In stop3 mode, the MC9S08LL16CLH retains RAM and register contents while disabling all clocks except the 1 kHz low-power oscillator used by the TOD module. Wake-up occurs in 6 µs via IRQ, KBI, or RTC match - making the MC9S08LL16CLH ideal for applications requiring years of operation on coin-cell or primary lithium batteries.

Is the MC9S08LL16CLH pin-compatible with other HCS08 devices?

The MC9S08LL16CLH shares the same 48-pin QFN footprint and signal mapping as other members of the MC9S08LL series (e.g., MC9S08LL8) and selected HCS08 derivatives like MC9S08AC16 in QFN packages, but is not pin-compatible with LQFP variants due to differing pin assignments for LCD and analog functions. The MC9S08LL16CLH pinout is defined in Figure 3 of Rev. 7 datasheet (98ASA00466D), and migration requires verification of peripheral register compatibility and voltage domain routing.