NXP Semiconductors MC9S08LL64CLH

Overview

MC9S08LL64CLH from NXP Semiconductors (formerly Freescale) is an automotive-grade 8-bit HCS08 microcontroller with 64 KB flash, 4 KB RAM, and integrated LCD driver supporting up to 8×36 segments. It operates at up to 40 MHz (at 3.6 V), features a 12-bit ADC with 10 channels, dual TPM modules, I²C, SPI, two SCI interfaces, and low-power stop3 mode with 6 μs wakeup. It targets instrument cluster and body control modules requiring robust timing, analog sensing, and direct LCD drive.

For engineers reviewing the MC9S08LL64CLH datasheet, MC9S08LL64CLH pinout, MC9S08LL64CLH application, or MC9S08LL64CLH equivalent, this page delivers verified electrical specs, package mapping to 64-pin LQFP (Case 840F), functional pin roles, real-world use cases in automotive instrumentation, and validated alternative parts for design continuity and supply resilience.

Technical Context

The MC9S08LL64CLH 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-trimmed internal reference (±0.2% resolution, ±2% deviation over voltage/temperature), enabling bus frequencies from 1–20 MHz without external crystal.

Peripherals include a dedicated time-of-day (TOD) module with quarter-second counter and external clock input, dual 2-channel TPMs supporting edge- or center-aligned PWM, and an analog comparator (ACMP) with output routable to TPM for hardware-triggered actions - all operational in stop3 mode. The 12-bit ADC achieves 2.5 μs conversion time and functions down to 1.8 V supply.

Key Specifications

Pinout & Package

MC9S08LL64CLH is housed in a 64-pin LQFP package (Case 840F, 10 mm × 10 mm), with 39 GPIOs (including two output-only pins) and dedicated LCD segment drivers (LCD[0:37] mapped across PTD, PTE, PTA, and PTB pins). VREFO2 is available as a trimmable 1.15 V reference output.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S9S08LL64F2MLH, MC9S08LL64CLH offers tighter thermal margin for cabin-mounted modules; compared with MC9S08LC60CLH, it adds TOD, VREFO2, and two ADC channels - enabling richer HMI and diagnostic capability within identical PCB footprint.

Availability

MC9S08LL64CLH is available at Aetrix Electronics and suitable for automotive instrument clusters, body control modules, and smart HVAC panels requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for MC9S08LL64CLH 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 acquired Freescale in 2015 and continues to support the S08 portfolio with documentation, tools, and long-term supply commitments for automotive and industrial customers.

The MC9S08LL64CLH belongs to the LL-series - a family of energy-efficient, LCD-optimized 8-bit MCUs designed specifically for cost-sensitive automotive body electronics and instrumentation where integration, low power, and display capability are critical.

FAQ

What is the maximum operating frequency of the MC9S08LL64CLH and under what conditions?

The MC9S08LL64CLH achieves up to 40 MHz CPU operation at 3.6 V supply voltage across the full industrial temperature range (–40°C to +85°C). At lower voltages (2.1 V to 1.8 V), the maximum frequency drops to 20 MHz. This scaling is enforced by internal voltage-frequency correlation logic to ensure timing compliance and reliability. The MC9S08LL64CLH uses its internal clock source (ICS) with FLL to generate stable bus clocks without requiring external high-frequency crystals.

Does the MC9S08LL64CLH support operation in low-power stop modes while maintaining real-time functionality?

Yes, the MC9S08LL64CLH supports stop2 and stop3 modes with selective peripheral retention. In stop3 mode, the time-of-day (TOD) module remains active using the very low-power external oscillator, enabling precise timekeeping and wake-up events. The 12-bit ADC and analog comparator also operate in stop3, allowing periodic sensor sampling without full CPU wake-up. Typical wakeup time from stop3 is 6 μs, minimizing latency for responsive automotive subsystems.

What LCD configurations does the MC9S08LL64CLH support, and how is contrast controlled?

The MC9S08LL64CLH supports up to 8×36 or 4×40 LCD segment configurations via dedicated pins (LCD[0:37]) distributed across PTD, PTE, PTA, and PTB ports. Contrast is controlled using the internally regulated LCD reference voltage (VLCD), which can be trimmed via software-accessible registers. The device also provides VREFO2 - a separate 1.15 V output trimmed in 0.5 mV steps - usable for external analog circuits or as an alternative contrast reference.

How many ADC channels does the MC9S08LL64CLH have, and what is their resolution and performance?

The MC9S08LL64CLH integrates a 12-bit successive approximation register (SAR) ADC with 10 input channels (ADP4–ADP11 plus two internal sources: temperature sensor and bandgap). It achieves a maximum conversion time of 2.5 μs, supports automatic compare functions, and operates fully from 3.6 V down to 1.8 V supply. The ADC remains functional in stop3 mode, enabling ultra-low-power sensor monitoring without CPU intervention.

Is the MC9S08LL64CLH pin-compatible with other members of the S08LL family, and what are the key package differences?

The MC9S08LL64CLH uses a 64-pin LQFP (Case 840F) and shares pinout compatibility with MC9S08LL36CLH in the same package. However, it is not pin-compatible with the 80-pin LQFP variant (MC9S08LL64CLL), which adds LCD[38:43], ADP0, ADP12, and extra GPIOs. Key differences include VREFO2 (available only on 64-pin) and VREFO1 (only on 80-pin), and LCD segment allocation - 64-pin supports up to LCD[0:37], while 80-pin supports full LCD[0:43]. Layout reuse is possible only within same pin-count variants.