MC9S08LG16CLH - 8-bit LCD MCU, 18KB Flash, 40MHz | NXP
MPN: MC9S08LG16CLH ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.46 | $4.46 |
| 10 | $4.02 | $40.20 |
| 100 | $3.58 | $358.00 |
| 500 | $3.21 | $1,605.00 |
| 1,000 | $2.87 | $2,870.00 |
MC9S08LG16CLH Overview
A segment-LCD MCU is a specialized 8-bit microcontroller that integrates a dedicated LCD driver, charge pump, and bias-generation circuitry alongside a general-purpose CPU. The device hierarchy is: 8-bit MCU -> segment LCD MCU -> HCS08 family -> S08LG sub-family -> embedded control IC. Compared with discrete MCU-plus-LCD-driver designs, the MC9S08LG16CLH reduces PCB area, BOM count, and BOM cost for applications that only need character or segment displays rather than graphical TFT panels.
Key features include the HCS08 CPU core at 40 MHz bus speed, 18 KB Flash, 2 KB RAM, an internal oscillator, an integrated LCD driver supporting up to 296 segments across 8 backplanes, multiple timers (MTIM and TPM), an analog-to-digital converter, and an on-chip in-circuit emulator (ICE) for real-time debug. The wide 2.7 V to 5.5 V operating range and industrial temperature grade (-40 C to +85 C) make the part suited to factory-floor and appliance environments.
Architecturally, the S08LG family uses a von-Neumann bus with Flash-resident vector table, low-power wait and stop modes, and a switchable internal 32 kHz / 1 MHz / bus-frequency clock. The integrated LCD controller supports static, 2x, 3x, 4x, 6x, and 8x multiplexed modes with selectable bias and contrast, eliminating the need for an external LCD bias-voltage network.
Typical applications include electric meters, home appliances, HVAC user interfaces, white-goods control panels, entry-level instrument clusters, and any cost-sensitive human-machine interface (HMI) that uses a segment LCD. When designing with this part, choose the LQFP-64 footprint early so PCB escape routing for the 30+ segment pins does not force a re-spin.
This page synthesizes NXP datasheet values, current distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet, helping engineers evaluate the MC9S08LG16CLH for new designs and migration paths from its S08LG family siblings.
Drop-in alternatives for MC9S08LG16CLH — 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 MC9S08LG16CLH (same form factor and footprint) — differing in Package, ADC, Core, Operating Temperature, Product Type.
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MC9S08LG32CLH
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S9S08LG32J0CLH
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View Datasheet →MC9S08JM32CLD
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View Datasheet →MC9S08LG16CLH Maximum Ratings & Electrical Characteristics
| Core | HCS08 (8-bit) |
| CPU Speed | 40 MHz (max) |
| Program Memory (Flash) | 18 KB (18K x 8) |
| RAM | 2 KB |
| Operating Voltage | 2.7 V to 5.5 V |
| Package | 64-LQFP (10x10 mm) |
| LCD Segments | Up to 296 segments, 8 backplanes |
| On-chip Debug | On-chip ICE (background debug mode) |
| Timers | MTIM, TPM, RTC |
| Internal Oscillator | Yes |
| Operating Temperature | -40 C to +85 C (industrial) |
| Temperature Grade | Industrial |
| Terminal Form | Gull Wing |
| Package Code | LFQFP |
| Mounting Type | Surface Mount |
MC9S08LG16CLH Pin Configuration
| Pin 1 | VREFH — ADC voltage reference high |
| Pin 2 | VREFL — ADC voltage reference low |
| Pin 3 | VDD — Main supply voltage |
| Pin 4 | VSS — Ground |
| Pin 5 | BKGD — Background debug mode pin |
| Pin 6 | RESET — External reset input, active low |
| Pin 7 | PTA0/KBI0 — GPIO / Keyboard interrupt |
| Pin 8 | PTA1/KBI1 — GPIO / Keyboard interrupt |
| Pin 9 | PTA2/KBI2 — GPIO / Keyboard interrupt |
| Pin 10 | PTA3/KBI3 — GPIO / Keyboard interrupt |
| Pin 11 | PTA4/KBI4 — GPIO / Keyboard interrupt |
| Pin 12 | PTA5/KBI5 — GPIO / Keyboard interrupt |
| Pin 13 | PTA6/KBI6 — GPIO / Keyboard interrupt |
| Pin 14 | PTA7/KBI7 — GPIO / Keyboard interrupt |
| Pin 15 | PTB0 — GPIO |
| Pin 16 | PTB1 — GPIO |
| Pin 17 | PTB2 — GPIO |
| Pin 18 | PTB3 — GPIO |
| Pin 19 | PTB4 — GPIO |
| Pin 20 | PTB5 — GPIO |
| Pin 21 | PTB6 — GPIO |
| Pin 22 | PTB7 — GPIO |
| Pin 23 | PTC0 — GPIO / LCD segment |
| Pin 24 | PTC1 — GPIO / LCD segment |
| Pin 25 | PTC2 — GPIO / LCD segment |
| Pin 26 | PTC3 — GPIO / LCD segment |
| Pin 27 | PTC4 — GPIO / LCD segment |
| Pin 28 | PTC5 — GPIO / LCD segment |
| Pin 29 | PTC6 — GPIO / LCD segment |
| Pin 30 | PTC7 — GPIO / LCD segment |
| Pin 31 | PTD0 — GPIO / LCD segment |
| Pin 32 | PTD1 — GPIO / LCD segment |
| Pin 33 | PTD2 — GPIO / LCD segment |
| Pin 34 | PTD3 — GPIO / LCD segment |
| Pin 35 | PTD4 — GPIO / LCD segment |
| Pin 36 | PTD5 — GPIO / LCD segment |
| Pin 37 | PTD6 — GPIO / LCD segment |
| Pin 38 | PTD7 — GPIO / LCD segment |
| Pin 39 | PTE0 — GPIO / LCD segment |
| Pin 40 | PTE1 — GPIO / LCD segment |
| Pin 41 | PTE2 — GPIO / LCD segment |
| Pin 42 | PTE3 — GPIO / LCD segment |
| Pin 43 | PTE4 — GPIO / LCD segment |
| Pin 44 | PTE5 — GPIO / LCD segment |
| Pin 45 | PTE6 — GPIO / LCD segment |
| Pin 46 | PTE7 — GPIO / LCD segment |
| Pin 47 | PTF0 — GPIO / LCD segment |
| Pin 48 | PTF1 — GPIO / LCD segment |
| Pin 49 | PTF2 — GPIO / LCD segment |
| Pin 50 | PTF3 — GPIO / LCD segment |
| Pin 51 | PTF4 — GPIO / LCD segment |
| Pin 52 | PTF5 — GPIO / LCD segment |
| Pin 53 | PTF6 — GPIO / LCD segment |
| Pin 54 | PTF7 — GPIO / LCD segment |
| Pin 55 | PTG0 — GPIO / LCD segment or backplane |
| Pin 56 | PTG1 — GPIO / LCD segment or backplane |
| Pin 57 | PTG2 — GPIO / LCD segment or backplane |
| Pin 58 | PTG3 — GPIO / LCD segment or backplane |
| Pin 59 | PTG4 — GPIO / LCD segment or backplane |
| Pin 60 | PTG5 — GPIO / LCD segment or backplane |
| Pin 61 | PTG6 — GPIO / LCD segment or backplane |
| Pin 62 | PTG7 — GPIO / LCD segment or backplane |
| Pin 63 | VDD — Main supply voltage (secondary pin) |
| Pin 64 | VSS — Ground (secondary pin) |
Typical Applications
MC9S08LG16CLH is suitable for 6 applications: Single-Phase Electric Meter with Segment LCD, Home Appliance Control Panel (Washing Machine, Dishwasher), HVAC Thermostat and User Interface, Entry-Level Instrument Cluster (Two-Wheeler, Small EV), Industrial Weigh Scale and Process Indicator, Medical Infusion Pump Segment Display Module.
Single-Phase Electric Meter with Segment LCD
The MC9S08LG16CLH suits single-phase residential electric meters that need a segmented LCD showing kWh consumption and tariff indicators. Its integrated LCD driver supports up to 296 segments at 8x multiplex, eliminating external HT1621-class driver ICs and reducing BOM cost. With 18 KB Flash and 2 KB RAM the part holds metering calculation firmware plus segment frame buffers, while the 2.7 V to 5.5 V supply range aligns with meter battery-backed supplies. The HCS08 core's low-power stop modes help the meter meet IEC 62053-21 quiescent current targets during line-power outages.
Recommended
Home Appliance Control Panel (Washing Machine, Dishwasher)
White-goods control panels rely on the MC9S08LG16CLH's segment LCD to show cycle status, temperature, and timer information without a graphical TFT. The 40 MHz HCS08 cycle time keeps keypad debouncing and relay-control response fast. The industrial -40 C to +85 C temperature range tolerates laundry-room humidity and motor-compartment heat. On-chip timers (MTIM, TPM) generate buzzer and motor-driver pulse-width signals, and the BDM debug port simplifies in-line firmware upgrade during production.
Recommended
HVAC Thermostat and User Interface
Wall-mounted HVAC thermostats use the MC9S08LG16CLH to drive segmented temperature, fan-speed, and mode icons on a custom LCD. The 8-bit core is well-matched to PID loop calculation at <1 kHz update rates, while the integrated charge pump and LCD bias generator save PCB area and component cost versus a discrete LCD approach. The on-chip ADC reads thermistor or analog temperature sensors without an external ADC. Low-power stop modes below 1 uA extend battery life in non-mains-powered thermostat retrofits.
Recommended
Entry-Level Instrument Cluster (Two-Wheeler, Small EV)
Small-vehicle instrument clusters showing speed, fuel level, and turn signals on a segment LCD fit the MC9S08LG16CLH's 296-segment drive capacity. The 40 MHz core processes wheel-speed pulses and CAN inputs with headroom for filter and display logic. Industrial temp grade suits under-dash installation but not under-hood, so position the MCU appropriately. Stable internal oscillator avoids an external crystal, reducing cluster PCB cost for cost-sensitive two-wheeler and small-EV manufacturers.
Recommended
Industrial Weigh Scale and Process Indicator
Industrial bench scales and process indicators use the MC9S08LG16CLH to read load-cell ADCs and display weight on a 14- or 16-segment numeric LCD. The HCS08 core performs averaging and tare-calculation routines within the 18 KB Flash limit. Wide 2.7 V to 5.5 V supply tolerates regulated industrial 24 V rail down-conversion. Multiple timers support RS-485 half-duplex transmit/receive duty for modbus-style communication, and BDM allows field firmware updates without disassembly.
Recommended
Medical Infusion Pump Segment Display Module
Mid-tier infusion and monitoring pumps with segment LCDs leverage the MC9S08LG16CLH's built-in driver and low-power modes for battery operation. The HCS08 core processes keypad entry, sensor readout, and rate-pump control in real time. Its wide supply range supports 3.3 V and 5 V designs, and BDM enables safe pre-closure firmware programming during manufacture. For clinical-grade designs, the device is paired with watchdog supervisors and medical-isolated power to meet IEC 60601 segregation requirements.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08LG16CLH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08LG32CLH | S9S08LG32J0CLH | MC9S08LL16CLF | MC9S08JM32CLD |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 48-LQFP (7x7 mm) - smaller | 44-LQFP (10x10 mm) - smaller |
| Core | HCS08 (8-bit) | HCS08 | HCS08 | HCS08 | HCS08 |
| CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 48 MHz |
| Flash | 18 KB | 32 KB | 32 KB | 16 KB | 32 KB |
| RAM | 2 KB | 2.5 KB | 2.5 KB | 1 KB | 2 KB |
| Operating Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| LCD Driver | Yes, up to 296 segments | Yes, up to 296 segments | Yes, up to 296 segments | Yes, fewer segments (LL family) | No LCD |
| Lifecycle | NRND | Active / NRND variant | Active production | Active | Active |
Key Differentiators
- Integrated 296-segment LCD driver eliminates external driver IC (vs MC9S08JM32CLD)
- Doubled Flash in same pinout for code-growth upgrade (vs MC9S08LG32CLH)
- Wider supply range than typical 3.3 V MCUs (vs MC9S08LL16CLF)
Design Notes
Route the LCD segment traces on the outer layers away from high-frequency digital lines to avoid pattern-noise coupling into the display. Because the MC9S08LG16CLH can drive up to 296 segments across 8 backplanes, escape 30+ segment pins densely; reserve at least a 0.5 mm-pitch breakout fan-out in the schematic symbol library. Decouple VDD with a 100 nF ceramic placed within 5 mm of each VDD pin and a bulk 4.7 uF tantalum near pin 3.
Use the VREFL/VREFH pins directly as the analog supply reference, tying VREFH to VDD locally and bypassing VREFL to ground with 100 nF plus 1 uF. Avoid sharing analog and digital returns: star-route the ADC grounds back to the MCU VSS pin to keep 10-/12-bit ADC noise below 1 LSB at full-scale conversion.
Do not use the internal oscillator for UART comm above 9600 baud without calibration trim from the ICS module. The factory-trimmed tolerance is approximately +/- 2%, which is too wide for error-free CAN or high-speed UART. Configure a 4 MHz or 8 MHz crystal if the design needs precise serial comms, and verify clock accuracy at production test.
Estimated: at 5 V VDD and 40 MHz core frequency with the LCD driver active, the MC9S08LG16CLH draws approximately 12 mA typical. In stop3 mode with RTI, the supply current drops below 1 uA, suitable for battery-backed metering. Plan the DC-DC converter design for ~15 mA peak demand if the meter is also driving the segment LCD at full 8x multiplex.
Compliance Information
NRND per NXP product page (as of 2026-10-21). RoHS compliant per DigiKey product listing. AEC-Q100 not qualified; this part targets industrial and consumer use, not automotive under-hood. Conflict-minerals statement aligned with NXP program standards.