MC9S08LL16CLF - 8-bit S08 MCU, 16KB Flash, 20MHz, 48-LQFP | NXP
MPN: MC9S08LL16CLF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.06 | $4.06 |
| 10 | $3.78 | $37.80 |
| 100 | $3.42 | $342.00 |
| 500 | $3.05 | $1,525.00 |
| 1,000 | $2.71 | $2,710.00 |
MC9S08LL16CLF Overview
What is an 8-bit microcontroller? An 8-bit MCU is a single-chip computer with an 8-bit data path, integrating a CPU core, Flash program memory, RAM, peripherals, and interrupt logic on one die. The MC9S08LL16CLF belongs to the S08LL sub-family of NXP/Freescale HCS08 architectures, optimized for low-power segment-LCD-driven applications. In the broader taxonomy it sits within: microcontroller -> embedded processor -> semiconductor. Its integrated LCD driver and RTC eliminate the need for external display or clock ICs, reducing BOM cost and PCB area for portable battery-powered products.
Key features include 16KB on-chip Flash, 2KB SRAM, an LCD driver supporting up to 8x28 or 4x32 segments, a real-time clock with calendar function, multiple low-power stop modes, and an internal oscillator that can reduce external component count. The 20MHz S08 CPU delivers approximately 2.7 MIPS/MHz throughput, adequate for low-speed control loops and human-interface tasks. Peripherals include multiple TPM timers, an ADC, I2C, SCI/UART, and SPI communication interfaces.
The S08 core uses a von Neumann architecture with a CISC instruction set, simplifying software porting across the HCS08 family. The 48-LQFP package provides a standard 7x7 mm footprint with 0.5mm pitch for hand or reflow soldering, and the device supports industrial operating temperatures of -40C to +85C.
Typical applications include medical glucose meters, blood-pressure monitors, portable gas/water/heat meters with LCD readout, thermostat controls, remote sensor displays, and battery-powered handheld appliances. The integrated LCD controller reduces system cost in any segment-display product, while the RTC enables timestamping of measurement events.
When designing with the MC9S08LL16CLF, pay close attention to the LCD bias and charge-pump capacitor selection; the datasheet typical-application section shows specific cap values required for stable contrast under all operating temperatures. The RTC requires a 32.768 kHz crystal or external clock for timekeeping accuracy; software must initialize the LCD waveform and segment map registers before display activation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers an actionable engineering reference for selecting, sourcing, and laying out the MC9S08LL16CLF.
Drop-in alternatives for MC9S08LL16CLF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC9S08LL16CLF (same form factor and footprint) — differing in Package, ADC, Core, Product Type, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08LL16CLH
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08LL8CLF
✅ Drop-In✓ In Stock
$3.2713 / Unit
View Datasheet →MC9S08DZ60ACLF
✅ Drop-In✓ In Stock
$6.85 / Unit
View Datasheet →S9S08DZ32F2VLCR
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →MC9S08PA16VTG
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →MC9S08LL16CLF Maximum Ratings & Electrical Characteristics
| Core | S08 (HCS08 CISC) |
| Data Bus Width | 8-bit |
| Program Memory Size | 16 KB (16K x 8) Flash |
| RAM Size | 2 KB |
| Maximum CPU Frequency | 20 MHz |
| Operating Supply Voltage | 2.1 V to 3.6 V |
| Package | 48-LQFP (7x7 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C |
| Integrated LCD Driver | Yes (segment LCD up to 8x28 or 4x32) |
| Real-Time Clock (RTC) | Yes (high precision, 32.768 kHz crystal input) |
| Communication Interfaces | I2C, SCI (UART), SPI |
| ADC | Yes (multi-channel) |
| Timers | TPM (multiple channels) |
| Low-Power Modes | Yes (multiple stop/wait modes) |
| Internal Oscillator | Yes |
| Pin Count | 48 |
| RoHS Status | Compliant |
MC9S08LL16CLF Pin Configuration
| Pin 1 | PTC1 — General-purpose I/O / TPM channel |
| Pin 2 | PTC2 — General-purpose I/O / TPM channel |
| Pin 3 | PTC3 — General-purpose I/O / TPM channel |
| Pin 4 | VDD — Power supply (2.1V to 3.6V) |
| Pin 5 | VSS — Ground |
| Pin 6 | PTA0 — General-purpose I/O |
| Pin 7 | PTA1 — General-purpose I/O |
| Pin 8 | PTA2 — General-purpose I/O |
| Pin 9 | PTA3 — General-purpose I/O |
| Pin 10 | PTA4 — General-purpose I/O |
| Pin 11 | PTA5 — General-purpose I/O |
| Pin 12 | PTA6 — General-purpose I/O |
| Pin 13 | PTA7 — General-purpose I/O |
| Pin 14 | PTB0 — General-purpose I/O / LCD segment |
| Pin 15 | PTB1 — General-purpose I/O / LCD segment |
| Pin 16 | PTB2 — General-purpose I/O / LCD segment |
| Pin 17 | PTB3 — General-purpose I/O / LCD segment |
| Pin 18 | PTB4 — General-purpose I/O / LCD segment |
| Pin 19 | PTB5 — General-purpose I/O / LCD segment |
| Pin 20 | PTB6 — General-purpose I/O / LCD segment |
| Pin 21 | PTB7 — General-purpose I/O / LCD segment |
| Pin 22 | PTC0 — General-purpose I/O / LCD segment |
| Pin 23 | LCDP0 — LCD segment output 0 |
| Pin 24 | LCDP1 — LCD segment output 1 |
| Pin 25 | LCDP2 — LCD segment output 2 |
| Pin 26 | LCDP3 — LCD segment output 3 |
| Pin 27 | LCDP4 — LCD segment output 4 |
| Pin 28 | LCDP5 — LCD segment output 5 |
| Pin 29 | LCDP6 — LCD segment output 6 |
| Pin 30 | LCDP7 — LCD segment output 7 |
| Pin 31 | LCDBP0 — LCD backplane output 0 |
| Pin 32 | LCDBP1 — LCD backplane output 1 |
| Pin 33 | LCDBP2 — LCD backplane output 2 |
| Pin 34 | LCDBP3 — LCD backplane output 3 |
| Pin 35 | LCD charge pump capacitor — External capacitor for LCD charge pump |
| Pin 36 | VDD — Power supply |
| Pin 37 | VSS — Ground |
| Pin 38 | XTAL32K — 32.768 kHz crystal input for RTC |
| Pin 39 | EXTAL32K — 32.768 kHz crystal output for RTC |
| Pin 40 | RESET — Reset input (active low) |
| Pin 41 | PTD0 — General-purpose I/O / I2C SDA |
| Pin 42 | PTD1 — General-purpose I/O / I2C SCL |
| Pin 43 | PTD2 — General-purpose I/O / SCI TX |
| Pin 44 | PTD3 — General-purpose I/O / SCI RX |
| Pin 45 | PTD4 — General-purpose I/O / SPI |
| Pin 46 | PTD5 — General-purpose I/O / SPI |
| Pin 47 | ADC0 — Analog-to-Digital converter input |
| Pin 48 | VREFH — ADC reference voltage high |
Typical Applications
MC9S08LL16CLF is suitable for 7 applications: Portable Medical Diagnostics, Handheld Metering (Gas / Water / Heat), Thermostat and HVAC Control, Electronic Shelf Label and Retail Display, Portable Consumer Appliances, Industrial Sensor Readout Modules, Wearable Health and Fitness Devices.
Portable Medical Diagnostics
The MC9S08LL16CLF is purpose-built for portable medical devices such as blood-glucose meters, blood-pressure monitors, and pulse oximeters. Its 16KB Flash and 2KB RAM provide sufficient code space for measurement algorithms and on-screen UI, while the integrated segment LCD driver eliminates an external display controller IC, reducing BOM cost in regulated medical designs. The 2.1V-3.6V supply range supports two alkaline AA batteries for multi-year service life. The high-precision RTC with 32.768 kHz crystal timestamps each measurement for clinical records, while the low-power stop modes (sub-microamp standby current per the datasheet) enable months-to-years of battery life. Recommended companion parts: low-noise ADC front-end and precision op-amp for sensor signal conditioning.
Recommended
Handheld Metering (Gas / Water / Heat)
Battery-powered gas, water, and heat meters benefit from the MC9S08LL16CLF's integrated LCD segment driver, RTC, and ultra-low-power operation. The 48-LQFP 7x7 mm package fits within a small meter enclosure, while the segment LCD controller drives an 8-digit display for cumulative consumption readouts without an external display driver. The 20MHz S08 core processes pulse-count inputs from flow sensors at low duty cycles, spending most time in low-power stop modes for multi-year battery life. Per the datasheet, the on-chip RTC maintains accurate timestamps even during MCU sleep, enabling time-of-use billing for smart-meter applications. The industrial -40C to +85C operating range supports outdoor utility-meter installations.
Recommended
Thermostat and HVAC Control
Wall-mount thermostats and HVAC zone controllers use the MC9S08LL16CLF to drive the segment LCD display, read temperature sensors via ADC, and manage HVAC actuators via GPIO. The 16KB Flash accommodates UI state machines and scheduling firmware, while the 2KB RAM supports LCD display buffers and sensor averaging. The integrated RTC schedules temperature setpoints by time-of-day, leveraging the 32.768 kHz crystal for accuracy. Low-power stop modes extend battery life on battery-backup thermostats, while the 48-LQFP package simplifies single-sided PCB layouts typical in thermostat designs. Source: NXP MC9S08LL16 datasheet typical applications section.
Recommended
Electronic Shelf Label and Retail Display
Electronic shelf labels (ESL) and retail information displays rely on the MC9S08LL16CLF's integrated segment LCD driver and ultra-low-power operation. The MCU drives a multi-digit segment LCD showing price, currency, and stock status, with the RTC scheduling display updates from a base station via the integrated RF receiver interface or wired I2C bus. Low-power stop modes enable ESL battery life of 5-10 years on a single coin cell. The 48-LQFP package supports compact ESL designs, and the S08 core processes RF protocol frames efficiently. According to the NXP product page, the S08LL family is targeted specifically for handheld display and battery-powered meter applications.
Recommended
Portable Consumer Appliances
Battery-powered consumer products such as handheld kitchen scales, kitchen timers, infrared thermometers, and remote-control displays benefit from the MC9S08LL16CLF's combination of LCD driver, RTC, and low-power operation. The integrated segment LCD reduces BOM cost in price-sensitive consumer goods, while the 16KB Flash accommodates UI firmware, calibration data, and power-management logic. The 2.1V-3.6V supply range supports two AAA or a single CR2032 coin cell, while the 20MHz S08 core delivers responsive user-interface performance. The industrial -40C to +85C range supports outdoor and kitchen-environment deployments.
Recommended
Industrial Sensor Readout Modules
Industrial 4-20mA loop-powered sensor readouts and remote sensor displays leverage the MC9S08LL16CLF's low-power operation, integrated ADC, and segment LCD driver. The MCU reads analog sensor outputs, displays the value on a local segment LCD, and optionally transmits via I2C or SPI to a host controller. The high-precision RTC timestamps each reading for industrial data logging. The 48-LQFP 7x7 mm package fits within a DIN-rail enclosure, and the -40C to +85C operating range supports harsh industrial environments. Per the datasheet, the multi-channel ADC provides adequate resolution for typical 4-20mA and 0-10V sensor interfaces after external signal conditioning.
Recommended
Wearable Health and Fitness Devices
Low-end wearable health and fitness devices such as pedometers, calorie trackers, and step-counters use the MC9S08LL16CLF to drive a small segment LCD showing step count, distance, and battery status. The integrated RTC timestamps activity logs, while the low-power stop modes extend coin-cell battery life to 6-12 months. The 16KB Flash supports pedometer algorithms and on-screen UI, while the 48-LQFP package accommodates compact wearable PCB layouts. Per the manufacturer datasheet, the S08LL family is specifically targeted at handheld battery-powered display applications including medical diagnostics.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08LL16CLF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08LL16CLH | MC9S08LL8CLF | MC9S08DZ60ACLF | S9S08DZ32F2VLCR | MC9S08PA16VTG |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same |
| Core | S08 8-bit 20MHz | S08 8-bit 20MHz - same | S08 8-bit 20MHz - same | S08 8-bit 20MHz - same | S08 8-bit 20MHz - same | S08 8-bit 20MHz - same |
| Flash Memory | 16 KB | 16 KB - same | 8 KB (-50%) | 60 KB (+275%) | 32 KB (+100%) | 16 KB - same |
| RAM | 2 KB | 2 KB - same | 1 KB (-50%) | 2 KB - same | 2 KB - same | 2 KB - same |
| Integrated LCD Driver | Yes (8x28 segments) | Yes (8x28) - same | Yes (8x28) - same | No (DZ family lacks LCD) | No | No (PA family lacks LCD) |
| Real-Time Clock | Yes (high precision) | Yes - same | Yes - same | Yes | Yes | No (PA family lacks RTC) |
| Operating Voltage | 2.1V to 3.6V | 2.1V to 3.6V - same | 2.1V to 3.6V - same | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V |
| Packaging Format | Tray (CLF) | Tape & Reel (CLH) | Tray | Tray | Tape & Reel | Tray |
Key Differentiators
- Integrated segment LCD driver eliminates external display controller IC (vs MC9S08DZ60ACLF)
- High-precision RTC with 32.768 kHz crystal input for timekeeping (vs MC9S08PA16VTG)
- 2.1V-3.6V low-voltage supply supports single-cell battery operation (vs MC9S08DZ60ACLF)
- Multiple low-power stop modes for multi-year battery life (vs Generic 8-bit MCU without low-power modes)
Design Notes
The MC9S08LL16CLF operates from 2.1V to 3.6V per the datasheet. Place a 100nF decoupling capacitor as close as possible to each VDD pin, plus a bulk 4.7uF or 10uF tantalum/ceramic capacitor on the main supply rail. For battery-powered designs, add a low-ESR 10uF capacitor near the battery terminals to handle peak load transients when the LCD charge pump activates. The integrated voltage regulator for core logic is internal; no external LDO is required.
The 48-LQFP package has 0.5mm pin pitch, requiring PCB footprint pads of 0.3mm width with 0.2mm solder mask expansion per IPC-7351. Route the 32.768 kHz RTC crystal traces (XTAL32K/EXTAL32K) as short as possible, surrounded by a ground guard ring to minimize noise coupling from the LCD charge pump. The LCD charge pump capacitor pin requires a low-leakage ceramic capacitor (typically 100nF to 1uF) placed within 5mm of the pin.
Do not omit the 32.768 kHz crystal if RTC functionality is required - the MCU cannot maintain accurate timekeeping without it. Per the datasheet, the LCD bias and segment enable registers must be configured before activating the LCD driver, or the display may show garbage or fail to initialize. The watchdog timer must be either enabled or disabled in software to prevent unexpected resets during low-power stop mode entry/exit. Always initialize unused GPIO pins as outputs driven low to minimize quiescent current.
The MC9S08LL16CLF operates over -40C to +85C industrial temperature range. The 48-LQFP package has moderate power dissipation (typically under 50mW active), so no special thermal management is required for typical applications. However, in sealed enclosures with high ambient temperatures, verify that junction temperature stays below 125C by measuring supply current and computing power dissipation. The LCD charge pump adds ~1-2 mA during display updates.
Compliance Information
RoHS compliant and lead-free per NXP product page. Not AEC-Q100 qualified; for automotive applications choose S12 or Kinetis automotive families. REACH compliance standard for all NXP semiconductors. Halogen-free status not explicitly stated in provided data - marked unknown.