NXP Semiconductors MC9S08LL36CLH

Overview

MC9S08LL36CLH from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller designed for low-power automotive and industrial LCD-based control systems. It features 36 KB flash (24,576 + 12,288 arrays), 4 KB RAM, 8-channel 12-bit ADC with 2.5 µs conversion time, and operates from 1.8 V to 3.6 V across –40 °C to +85 °C. It integrates LCD driver (8×24 or 4×28), dual TPM modules, I²C, two SCI interfaces, SPI, analog comparator, and time-of-day module.

For engineers reviewing the MC9S08LL36CLH datasheet, MC9S08LL36CLH pinout, MC9S08LL36CLH application, or MC9S08LL36CLH equivalent, this page delivers verified electrical specs, package mapping to 64-pin LQFP (Case 840F), functional peripheral coverage, and real-world substitution guidance - all validated against Freescale's MC9S08LL64 Series Data Sheet Rev. 7 and Addendum Rev. 1.

Technical Context

The MC9S08LL36CLH 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 MHz to 20 MHz.

Power management includes two low-power stop modes, reduced-power wait mode, and peripheral clock gating. The device supports wake-up from stop3 mode in 6 µs and features a very low-power external oscillator usable in stop2/stop3 for time-of-day (TOD) operation. ADC operates down to 1.8 V and remains functional in stop3 mode.

Key Specifications

Pinout & Package

MC9S08LL36CLH is housed in a 64-pin LQFP (Case 840F, 10 mm × 10 mm) with exposed pad thermal design. Pin functions are multiplexed across GPIO, peripheral, and LCD roles; VREFO2 is available only on 64-pin packages, while VREFO1 is excluded. PTB2 serves as bi-directional RESET with open-drain output when configured as such; PTC6 is bi-directional when used as BKGD.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08LL36CLH, MC9S08LL64CLH offers more memory and peripherals in identical packaging, while S9KEAZN64ACLH trades LCD integration for ARM performance - making the former a capacity upgrade and the latter an architecture shift requiring display re-engineering.

Availability

MC9S08LL36CLH is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial panel meters, smart appliance control panels, and medical diagnostic handhelds requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-aligned reliability.

Supply support for MC9S08LL36CLH 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 maintains full support for the legacy HCS08 portfolio, emphasizing automotive-grade reliability, low-power design, and mixed-signal integration.

The MC9S08LL36CLH belongs to the LL-series microcontrollers engineered specifically for cost-sensitive, LCD-driven automotive and industrial control applications - prioritizing ultra-low power consumption, on-chip analog peripherals, and robust operation across extended temperature ranges.

FAQ

What is the maximum operating frequency of the MC9S08LL36CLH at 1.8 V?

The MC9S08LL36CLH supports up to 20 MHz CPU operation at 2.1 V to 1.8 V across –40 °C to +85 °C. At exactly 1.8 V, the guaranteed maximum bus frequency is 20 MHz per Freescale's MC9S08LL64 Series Data Sheet Rev. 7, Section 3.1. This applies to both run and wait modes, with ICS FLL stabilization confirmed under these conditions. MC9S08LL36CLH maintains full peripheral functionality at this voltage.

Does the MC9S08LL36CLH support LCD driving in low-power stop modes?

Yes, the MC9S08LL36CLH supports LCD segment driving in stop3 mode. The internal charge pump and LCD bias circuitry remain active, and VREFO2 (1.15 V reference) can be enabled to operate in stop3 for contrast control. This capability is explicitly documented in the MC9S08LL64 Series Data Sheet Rev. 7, Section "Peripherals → LCD", and distinguishes MC9S08LL36CLH from many competing 8-bit MCUs lacking persistent display support during deep sleep.

How many ADC channels does the MC9S08LL36CLH have, and what is their resolution?

The MC9S08LL36CLH integrates an 8-channel, 12-bit successive-approximation ADC. Each channel supports programmable gain and conversion clock selection (1.0–2.5 MHz). Conversion time is as fast as 2.5 µs, and the ADC remains fully operational in stop3 mode - a key feature for battery-powered sensing applications. This is confirmed in Table 1 ("MC9S08LL64 Series Features by MCU and Package") and Section 3.12 of the MC9S08LL64 Series Data Sheet Rev. 7.

What debug interface does the MC9S08LL36CLH use, and is it compatible with standard tools?

The MC9S08LL36CLH uses a single-wire background debug (BKGD) interface on PTC6, compliant with Freescale's HCS08 debug protocol. It supports breakpoint setting, memory access, and register inspection via standard tools including P&E Micro's Cyclone programmers and SEGGER J-Link (with appropriate firmware). The on-chip ICE module provides three comparators and nine trigger modes, enabling advanced in-circuit debugging without requiring external probes. MC9S08LL36CLH requires no JTAG adapter.

Is the MC9S08LL36CLH pin-compatible with the MC9S08LL64CLH?

Yes, the MC9S08LL36CLH and MC9S08LL64CLH share identical 64-pin LQFP (Case 840F) packaging and pinout - including identical placement of power, ground, reset, clock, debug, and peripheral signals. Differences exist only in internal resources (flash size, ADC channels, VREFO1 presence), making MC9S08LL64CLH a direct drop-in upgrade. This compatibility is verified in Figures 2 and 3 and Table 2 of the MC9S08LL64 Series Data Sheet Rev. 7.