NXP Semiconductors MC9S08LL16CLHR

Overview

MC9S08LL16CLHR 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 from 1.8 V to 3.6 V at up to 20 MHz CPU frequency and features a low-power stop3 mode consuming only 400 nA. It is designed for battery-powered LCD-based industrial and consumer control panels.

For engineers reviewing the MC9S08LL16CLHR datasheet, MC9S08LL16CLHR pinout, MC9S08LL16CLHR application, or MC9S08LL16CLHR equivalent, key selection criteria include its 48-pin QFN package with exposed thermal pad, on-chip ICS/FLL clock system enabling 1–10 MHz bus frequencies, single-wire background debug interface, and integrated 12-bit ADC with temperature sensor and stop3 operation capability.

Technical Context

The MC9S08LL16CLHR implements the HCS08 CPU core with HC08 instruction set plus BGND, supporting up to 32 interrupt/reset sources. Its internal clock source (ICS) uses a frequency-locked loop (FLL) trimmed to ±0.2% resolution over voltage and temperature, enabling stable bus frequencies from 1 MHz to 10 MHz without external crystal.

It integrates a dedicated low-power oscillator for TOD and RTC functions in stop2/stop3 modes, delivers 6 µs wake-up from stop3, and supports peripheral clock gating to disable unused modules-reducing active current while maintaining real-time functionality in ultra-low-power applications.

Key Specifications

Pinout & Package

MC9S08LL16CLHR is housed in a 48-pin QFN package (98ASA00466D) with 7 mm × 7 mm body, 0.5 mm pitch, and exposed thermal pad for enhanced thermal dissipation in compact designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08AC16CFGE, the MC9S08LL16CLHR adds integrated LCD driving and TOD functionality at identical pin count and voltage range; versus S9KEAZ128AMLH, it trades ARM performance and peripheral breadth for lower BOM cost, smaller code footprint, and guaranteed LCD segment control without firmware overhead.

Availability

MC9S08LL16CLHR is available at Aetrix Electronics and suitable for industrial control panels, smart meter displays, and portable medical device UIs requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08LL16CLHR 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 MC9S08LL16CLHR belongs to the HCS08 LL-series - a family optimized for ultra-low-power LCD-based human interface applications, emphasizing minimal active and stop-mode current, integrated analog peripherals, and robust debug capability in space-constrained packages.

FAQ

What is the package type and thermal pad configuration of the MC9S08LL16CLHR?

The MC9S08LL16CLHR uses a 48-pin QFN package (98ASA00466D) with 7 mm × 7 mm body, 0.5 mm pitch, and an exposed thermal pad. This pad must be soldered to a PCB copper pour for optimal thermal performance and electrical stability. The pad is internally connected to VSS and requires proper grounding per Freescale EB806 guidelines.

Does the MC9S08LL16CLHR support operation in stop3 mode with the ADC active?

Yes, the MC9S08LL16CLHR supports full ADC operation-including channel scanning, conversion, and temperature sensor reading-in stop3 mode. Its 12-bit ADC maintains 2.5 µs conversion time and uses the internal bandgap reference, enabling accurate battery monitoring or environmental sensing without waking the CPU.

How does the internal clock source (ICS) of the MC9S08LL16CLHR achieve frequency stability without an external crystal?

The MC9S08LL16CLHR's ICS uses a factory-trimmed internal reference with FLL feedback to achieve ±0.2% resolution and ±2% deviation over temperature and voltage. It locks to either internal RC or external 31.25 kHz–38.4 kHz/1–16 MHz sources, generating stable bus frequencies from 1 MHz to 10 MHz - eliminating crystal cost and board area while meeting timing requirements for SCI, SPI, and I²C.

Can the MC9S08LL16CLHR drive a 24-segment LCD directly without external components?

Yes, the MC9S08LL16CLHR integrates a charge pump and programmable LCD voltage reference, enabling direct drive of up to 8×24 segment LCDs. Its VLCD pin provides regulated bias voltage, and contrast is adjustable via software trimming of the internal reference - removing need for external capacitors, resistors, or DC-DC converters in most implementations.

What debug interface does the MC9S08LL16CLHR provide, and is it compatible with standard tools?

The MC9S08LL16CLHR features a single-wire background debug (BKGD) interface on PTC6, fully compatible with P&E Micro's Cyclone and Multilink debug probes, as well as S32DS and CodeWarrior IDEs. It supports breakpoint setting, memory inspection, and real-time register monitoring without requiring additional pins or JTAG headers.