MC9S08PL8CTG - 8-Bit 20MHz MCU, 8KB Flash | NXP
MPN: MC9S08PL8CTG ✓ ActiveMC9S08PL8CTG Overview
An S08PL microcontroller is a compact member of the 8-bit embedded-control hierarchy, combining a processor core, flash program memory, RAM, analog conversion, timers, and communication peripherals in one device. Within the broader semiconductor category, the S08PL family provides a practical platform for cost-sensitive appliance controls, compact industrial modules, and embedded products that require deterministic 8-bit processing without a higher-performance processor.
The MC9S08PL8CTG provides 8 KB of flash and 2 KB of RAM, giving embedded code and working-memory capacity for small control systems. Its 20 MHz maximum operating frequency supports responsive control-loop execution, while the 14 I/O count permits connections to sensors, switches, indicators, and actuators. The integrated 10-bit ADC converts analog signals for thresholding, monitoring, and basic control functions without requiring a separate converter.
The device belongs to NXP’s scalable and pin-compatible S08P family, which reuses the S08 core, intellectual property, and development tools. This ecosystem continuity reduces migration effort when a design moves among compatible S08P members with different memory capacities or temperature grades. The family architecture combines a familiar 8-bit programming model with integrated analog resources, timers, EEPROM capability, and EFT/ESD performance features.
Typical uses include motor and pump controllers, compact temperature-control products, appliance interfaces, small sensor nodes, and industrial control modules. In these applications, the MCU can digitize sensor inputs, execute control logic, operate timers, and drive discrete outputs while operating from a 3.3 V or 5 V system rail. The 16-pin TSSOP package also supports compact, surface-mount PCB construction.
When laying out the circuit, follow the manufacturer’s pin-description table for supply pins, analog inputs, timer connections, programming signals, and debug functions. Place bypassing capacitance close to the supply pins, keep analog and digital return paths appropriately separated, and use the pin-compatible family documentation to verify each alternative before changing the MCU.
This product record consolidates manufacturer specifications, package information, application guidance, lifecycle status, and qualified family comparisons into one engineering-oriented reference. It also clarifies the limits of direct substitution: firmware, memory capacity, peripheral mapping, temperature grade, and package details must be checked before any replacement is approved.
Drop-in alternatives for MC9S08PL8CTG — 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 MC9S08PL8CTG (same form factor and footprint).
MC9S08PL4CTG
✅ Drop-InContact for price
View Datasheet →MC9S08PL8CTG Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit S08PL microcontroller |
| Core | S08 8-bit core |
| Data Bus Width | 8 bit |
| Maximum Clock Frequency | 20 MHz |
| Flash Memory | 8 KB (8K x 8) |
| Data RAM | 2 KB |
| ADC Resolution | 10 bit |
| Number of I/O | 14 I/O |
| Operating Supply Voltage | 2.7 V to 5.5 V |
| Minimum Operating Temperature | -40 C |
| Maximum Operating Temperature | +85 C |
| Package | 16-pin TSSOP |
| Mounting Style | SMD/SMT |
| Packaging | Tube |
| Moisture Sensitivity Level | MSL 3 |
| Peak Reflow Temperature | 260 C |
| Maximum Time at Peak Reflow Temperature | 40 s |
| Terminal Finish | Tin |
| JESD-609 Code | e3 |
MC9S08PL8CTG 16-pin tssop Pin Configuration Guide
Pin configuration for MC9S08PL8CTG (16-pin tssop 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 MC9S08PL8CTG.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08PL8CTG is suitable for 6 applications: Compact Appliance Control, Pump and Motor Controller, Temperature Monitoring Module, Industrial Sensor Node, LED and Display Control, Battery-Powered Control Device.
Compact Appliance Control
The MC9S08PL8CTG fits compact appliance-control boards because it combines an 8-bit S08 core, 8 KB of flash, 2 KB of RAM, and 14 I/O in a 16-pin TSSOP. Its 10-bit ADC can read temperature, level, or potentiometer inputs, while timers support motor-drive timing and delayed events. Operating from 2.7 V to 5.5 V permits use in both 3.3 V and 5 V control architectures. The larger 8 KB memory option gives application code and update logic more room than a 4 KB member of the family. Confirm peripheral assignments, programming signals, and exposed-pin availability against the manufacturer data sheet before final routing.
Recommended
Pump and Motor Controller
The MC9S08PL8CTG is suitable for basic pump and motor-control modules where deterministic 8-bit logic, timers, and a compact 16-pin TSSOP are valuable. Its 20 MHz maximum clock supports responsive state-machine execution, while the 10-bit ADC can monitor current, temperature, or tank level through suitable sensing circuitry. The 14 available I/O provide connections for control outputs, status indicators, and input sensors. Use the exact pin-description table to confirm timer and PWM-capable signals, and apply transistor or MOSFET drive stages rather than driving loads directly from MCU pins.
Recommended
Temperature Monitoring Module
A temperature-monitoring module can use the MC9S08PL8CTG as a compact sensor-processing and alarm controller. The 10-bit ADC is suited to conditioned analog sensor signals, while the 8 KB flash provides room for calibration tables, filtering logic, event history, and communication routines. The device operates across a 2.7 V to 5.5 V supply range and from -40 C to +85 C, making it useful in industrial sensing products with appropriately qualified components. Keep sensor traces short, provide stable reference and bypass arrangements, and isolate noisy switching or relay nodes from the analog measurement section.
Recommended
Industrial Sensor Node
The MC9S08PL8CTG works as the local controller for a small industrial sensor node that must acquire analog data, evaluate thresholds, and report status through discrete I/O or a serial interface. Its 14 I/O and 8 KB flash provide useful capacity for peripheral integration, while 2 KB RAM accommodates acquisition state and communication buffers. The 16-pin TSSOP supports compact surface-mount construction, and the 2.7 V minimum operating voltage is compatible with regulated low-voltage sensor systems. Validate communication pin multiplexing, reset behavior, and peripheral resource conflicts in the device configuration before layout release.
Recommended
LED and Display Control
The MC9S08PL8CTG can manage LED indicators, status displays, or simple annunciator panels in compact control products. Timers provide deterministic flashing, debouncing, and refresh scheduling, while the 14 I/O support keys, indicator drives, and display-control signals. The 10-bit ADC may additionally supervise a potentiometer, light sensor, or supply-related analog condition. Because microcontroller pins have finite drive capability, use suitable transistor or driver stages for high-current LEDs and follow the absolute-maximum ratings in the manufacturer data sheet when selecting series resistors and protection networks.
Recommended
Battery-Powered Control Device
The MC9S08PL8CTG can serve in a modest battery-powered control device when the design operates from a regulated 2.7 V to 5.5 V rail. Its 8-bit architecture, 2 KB RAM, and 8 KB flash suit low-complexity control tasks, while the 16-pin TSSOP leaves a compact board footprint. For longer battery life, use the MCU’s low-power modes, disable unused peripherals, and make analog measurements only as often as the application allows. The standby-current figure and wake-up behavior must be checked in the manufacturer documentation for the selected operating voltage and mode.
Engineering reference data for MC9S08PL8CTG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08PL4CTG |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Package | 16-TSSOP | 16-TSSOP |
| Core | S08 8-bit core | S08 8-bit core |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Flash Memory | 8 KB (8K x 8) | 4 KB |
| Data RAM | 2 KB | 2 KB |
| ADC Resolution | 10 bit | 10 bit |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C |
| Number of I/O | 14 I/O | 14 I/O |
| Lifecycle Status | Active | Active |
| Packaging | Tube | Tube |
Key Differentiators
- Twice the flash memory of the closest documented family alternative (vs MC9S08PL4CTG)
- Maintains the same compact pin-compatible package platform (vs MC9S08PL4CTG)
- Combines control processing and analog conversion in one MCU (vs MC9S08PL4CTG)
Design Notes
Place the required supply-bypass capacitors immediately adjacent to the MC9S08PL8CTG supply and ground pins, with the shortest possible return path to the device. Follow the capacitor values and placement guidance in the current NXP data sheet and reference design. Keep analog-input traces short, provide a stable ground reference, and avoid routing high-current switching or relay paths beneath the MCU and analog section.
Do not treat the S08P family’s pin-compatible positioning as permission to substitute any device without checking the exact suffix. Verify the TSSOP pin count, programming interface, reset connection, timer assignments, analog channels, temperature grade, and supply limits. The MC9S08PL4CTG shares the family platform but has 4 KB of flash instead of 8 KB, so an apparently simple replacement can fail during firmware loading.
Design the supply path for both 3.3 V and 5 V system conditions only if the external regulator and all connected loads support that range. The MCU accepts 2.7 V to 5.5 V, but enabling peripherals, driving external loads, and analog-conversion accuracy still depend on the chosen supply voltage. Check every attached I/O for signal-level compatibility and use protection networks where an external signal can exceed the MCU rails.
Preserve a clean implementation of the programming and debug signals because these functions are needed for firmware bring-up and field updates. Follow the package drawing and pin-description table for exposed pad, programming pins, and supply connections. For analog measurements, use a quiet reference arrangement, short routed sensor paths, and separate high-current returns to minimize error introduced between the sensor and the 10-bit ADC.
Compliance Information
The terminal finish is tin and the JESD-609 code is e3. RoHS, REACH, lead-free, halogen-free, conflict-minerals, and AEC-Q100 status require confirmation from current NXP compliance documentation.