S9S08LG32J0CLK - 40MHz 8-Bit 32KB Flash MCU | NXP
MPN: S9S08LG32J0CLK ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
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| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
S9S08LG32J0CLK Overview
A microcontroller is a programmable integrated circuit that combines a CPU core, nonvolatile program memory, working memory, input/output ports, and embedded peripherals on one semiconductor device. The S08 family belongs to the broader hierarchy of microcontroller, embedded processor, computer control IC, and semiconductor. It executes firmware to monitor sensors, operate user interfaces, sequence actuators, and manage system behavior without a separate host processor.
Verified features include an 8-bit HCS08 central processing unit, operation to 40 MHz, 32 KB organized as 32K x 8 flash, 39 I/O ports, and support for liquid-crystal displays with as many as 296 segments. The MCU is identified as automotive qualified and uses a flexible 5 V segment-LCD architecture suited to industrial and vehicle-related control panels.
The MC9S08LG family provides both 5 V segment-LCD LG32 and LG16 devices with improved performance and flexible pin functionality. This model combines a relatively high 40 MHz clock speed with dedicated display-oriented I/O, enabling compact control platforms that need local display feedback, keypad scanning, sensing, and communication functions.
Typical uses include electric meters, home appliances, HVAC systems, and entry-level instrument clusters. Its 32 KB flash capacity provides room for embedded control firmware, while the 39-port count supports multiple external sensing and actuator connections. The 80-LQFP package also offers ample physical pins compared with compact surface-mount MCU packages.
Designers should verify every peripheral, electrical limit, multiplexing option, and pin function against the manufacturer datasheet before layout or firmware release. Decoupling, programming-interface access, LCD segment routing, unused-pin treatment, and mixed 3.3 V or 5 V system conditions require board-level review.
This page consolidates verified lifecycle, package, frequency, memory, interface, and sourcing information while clearly separating unavailable technical and commercial values. It also compares candidate family variants and explains why an apparent alternative must not be treated as drop-in unless both footprint and pin-level compatibility are proven.
Drop-in alternatives for S9S08LG32J0CLK — 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 S9S08LG32J0CLK (same form factor and footprint) — differing in Product Type, Flash Memory, CPU Core, Maximum LCD Segments, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesS9S08LG32J0CLK Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit HCS08 automotive-qualified microcontroller |
| CPU Bit Width | 8 bit |
| Maximum Clock Speed | 40 MHz |
| Flash Memory | 32 KB (32K x 8) |
| Supply Voltage | 2.7 V to 5.5 V |
| Operating Temperature | -40 °C to +85 °C |
| I/O Port Count | 39 ports |
| Maximum LCD Segments | 296 segments |
| CPU Core | 8-bit HCS08 central processor unit |
| Package Type | 80-pin LQFP |
| Package Body Size | 14 mm x 14 mm |
| Mounting Type | Surface mount |
| Automotive Qualification | Automotive qualified |
| Lifecycle Stage | Active |
| Debug Feature | On-chip in-circuit emulator |
| Power-Supply Description | 3.3 V / 5 V device |
S9S08LG32J0CLK 14 mm x 14 mm Pin Configuration Guide
Pin configuration for S9S08LG32J0CLK (14 mm x 14 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for S9S08LG32J0CLK.
Refer to the datasheet for full pin configuration.
Typical Applications
S9S08LG32J0CLK is suitable for 6 applications: Electric Meter Display Controller, HVAC Control Panel, Home Appliance User Interface, Entry-Level Instrument Cluster, Industrial Metering Terminal, Segment-LCD Control Module.
Electric Meter Display Controller
The S9S08LG32J0CLK fits an electric-meter control platform that requires a local segment display and several sensing or switching connections. Its 32 KB flash provides storage for display, keypad, measurement, and supervisory firmware, while the 40 MHz 8-bit HCS08 CPU supports responsive control tasks. Verified support for up to 296 LCD segments enables a feature-rich meter face without a separate display controller. The 39 available I/O ports provide a large interface budget, although the designer must allocate multiplexing carefully. Before release, verify the exact LCD segment and pin map, metering peripherals, calibration strategy, EMC requirements, and protection network in the official datasheet.
Recommended
HVAC Control Panel
The S9S08LG32J0CLK is appropriate for an HVAC user interface that combines a segment LCD with sensors, buttons, relays, and a communications link. Its 39 I/O ports provide ample nominal pin capacity, and the 40 MHz CPU can service display updates and control logic. A 2.7 V to 5.5 V operating range also supports multiple industrial power architectures after correct regulator and I/O-level design. The primary design trade-off is pin multiplexing: LCD segments, peripherals, and safety inputs can compete for package pins, so every assignment must be checked against the 80-LQFP pin table and reference design.
Recommended
Home Appliance User Interface
The S9S08LG32J0CLK can serve as the display and control core of a household appliance requiring a clear segment-LCD interface and embedded state machine. Its 32 KB flash capacity accommodates menu, timing, diagnostic, and motor-sequencing firmware, while the 8-bit architecture keeps the control system straightforward. The active lifecycle status and distributor availability support prototype and production sourcing, but software constraints must be evaluated. Confirm whether the exact device includes the required timers, communication interfaces, analog channels, watchdog, and brownout behavior. Use local pull-ups or level translation where external switches and display glass interface with the MCU.
Recommended
Entry-Level Instrument Cluster
The S9S08LG32J0CLK is a natural candidate for an entry-level instrument cluster because it combines a 40 MHz HCS08 CPU, 32 KB flash, 39 I/O ports, and segment-LCD capability in one 80-LQFP package. The MCU can update status fields and process switch inputs while automotive qualification supports evaluation for vehicle-related equipment. Compared with a multi-chip display arrangement, integrating the control logic can reduce board complexity. Nevertheless, cluster development requires careful review of LCD timing, contrast, drive voltage, switch debouncing, diagnostic behavior, temperature extremes, EMC immunity, and any application-specific automotive validation beyond the basic qualification claim.
Recommended
Industrial Metering Terminal
The S9S08LG32J0CLK is suitable for an industrial metering terminal that must present measurements locally and process inputs without a host computer. Its segment-LCD capacity of up to 296 segments supports dense numeric and status displays, and 39 I/O ports can accommodate keys, alarm outputs, and sensor interfaces. The 2.7 V to 5.5 V range supports design flexibility, but analog accuracy, reference quality, and communication isolation must be evaluated separately. Firmware should include calibration storage, watchdog recovery, brownout handling, and input filtering. Verify all peripheral availability and multiplex priorities because the verified snippets do not provide RAM, timer, ADC, or communication-channel details.
Recommended
Segment-LCD Control Module
The S9S08LG32J0CLK can act as the central controller in a dedicated segment-LCD module when a product needs more display flexibility than a fixed LCD driver alone provides. Its 40 MHz 8-bit core can coordinate display refresh, key input, diagnostics, and application state, while 32 KB flash holds the display map and control firmware. The 80-LQFP package provides many external pins for glass drive, buttons, and expansion. System partitioning should prevent long or high-current LCD drive lines from creating routing conflicts, and the design must follow the datasheet's segment, common, bias, and pin-multiplexing requirements for reliable display operation.
Recommended
Recommended Products Summary
Engineering reference data for S9S08LG32J0CLK — comparison, design guidance, and compliance information.
Selection Guide
Key Differentiators
- High clock speed within an 8-bit control architecture (vs MC9S08LG32CLK)
- Broad segment-display capability (vs MC9S08LG32J0VLK)
- Automotive-oriented qualification claim (vs S9S08LG32J0VLK)
Design Notes
Design the supply rail for the verified 2.7 V to 5.5 V operating range and account for transient, ripple, and brownout behavior separately. Place the manufacturer's recommended bypass capacitors at the corresponding power pins and use short return paths to the ground plane. LCD drive, digital I/O, and any analog-adjacent functions can change current demand and pin behavior with the selected configuration, so rail sizing must be based on the final datasheet operating-current table rather than the CPU clock alone.
Reserve PCB footprint, programming access, reset support, clock circuitry, decoupling, and LCD routing before assigning the 80-pin LQFP functions. Because the MCU supports extensive pin multiplexing, changing a pin from LCD segment to general-purpose I/O can move a net to a different package terminal. Review the datasheet alternate-function table and compare it with the schematic net-by-net. Keep sensitive timing or measurement paths short and isolate them from LCD drive and switching nodes where the application permits.
Do not assume that another LG32-family part is interchangeable merely because it has a similar MPN or the same flash size. Confirm the exact package pinout, alternate functions, LCD resources, memory map, peripherals, electrical ratings, temperature range, qualification, and errata. Also do not infer lead-free, RoHS, REACH, or AEC-Q100 grade from the words automotive qualified; those claims require documentary support. This record intentionally leaves unsupported compliance and electrical details unresolved.
Compliance Information
The verified sources describe S9S08LG32J0CLK as automotive qualified, but they do not provide documentary evidence for RoHS, REACH, a specific AEC-Q100 grade, lead-free status, halogen-free status, or conflict-minerals compliance.
