NXP Semiconductors MC9S08PL4CTG
- Part No.:
- MC9S08PL4CTG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC9S08PL4CTG.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 16TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MC9S08PL4CTG from NXP Semiconductors is an 8-bit S08 microcontroller with 4 KB flash, 512 byte RAM, and 128 byte EEPROM, operating at up to 20 MHz across –40 °C to +85 °C. It integrates ADC (8-channel, 10-bit), dual 2-channel FTM modules, RTC, SCI/UART with LIN support, analog comparator, and keyboard interrupt module - deployed in industrial sensor nodes and low-power embedded control systems.
For engineers reviewing the MC9S08PL4CTG datasheet, MC9S08PL4CTG pinout, MC9S08PL4CTG application, or MC9S08PL4CTG equivalent, this page delivers verified technical context, package-specific pin assignments, real-world use-value per application, and two validated alternative parts for cost, footprint, or feature trade-offs.
Technical Context
The MC9S08PL4CTG implements an S08 CPU core with nested four-level interrupt handling and supports multiple clock sources: external crystal/resonator (31.25 kHz–20 MHz) and internal ICS with FLL, trimmed to ±1% over 0–70 °C and ±2% over full temperature range. Its memory subsystem includes flash with read-while-program/erase capability and EEPROM with 2-byte erase sectors.
System-level protection includes independent watchdog with dedicated 1 kHz oscillator, configurable low-voltage detect (LVD) with four warning thresholds and hysteresis, illegal opcode/address detection, and flash/RAM access protection. Debug is enabled via single-wire background interface with three breakpoints and on-chip ICE module featuring two comparators and nine trigger modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 8-bit S08 CPU, up to 20 MHz bus frequency at 2.7–5.5 V supply |
| Memory | 4 KB flash (read/program/erase over full voltage/temp), 512 byte RAM, 128 byte EEPROM with 2-byte erase sectors |
| ADC | 8-channel, 10-bit resolution, 2.5 µs conversion time, internal bandgap reference, operation in stop mode |
| Timers | Two 2-channel FlexTimer Modules (FTM0/FTM1), each 16-bit counter supporting input capture, output compare, PWM (edge- or center-aligned) |
| Communication | One SCI/UART with LIN extension support, full-duplex NRZ, optional 13-bit break detection |
| Power Modes | Low-power stop mode, reduced-power wait mode; peripheral clock gating enables selective module disable in stop3 |
| Supply Current | 1.5 µA typical in Stop3 mode (5 V), 96 µA with ADC active in Stop3, 4.51 mA typical Run current (20 MHz, all modules gated, 5 V) |
Pinout & Package
MC9S08PL4CTG is housed in a 16-pin TSSOP package (JEDEC MO-153, 4.4 mm × 5.0 mm body, 0.65 mm pitch). Pin functions are multiplexed across GPIO, peripherals, and debug signals, with PTB0 configured as true open-drain output.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0/KBI0P0/FTM0CH0/ACMP0/ADP0 | Port A bit 0 / KBI input 0 / FTM0 channel 0 / ACMP positive input / ADC channel 0 | Multi-function pin supporting GPIO, keyboard interrupt, timer I/O, analog comparator input, and ADC sampling |
| PTA1/KBI0P1/FTM0CH1/ACMP1/ADP1 | Port A bit 1 / KBI input 1 / FTM0 channel 1 / ACMP negative input / ADC channel 1 | Shared signal path enabling simultaneous analog comparison and ADC acquisition on same port |
| PTA4/ACMPO/BKGD/MS | Port A bit 4 / ACMP output / Background debug / Master select | Output-only pin when used as port; carries debug signaling and comparator result without bidirectional conflict |
| PTA5/IRQ/FTM1CH0/RESET | Port A bit 5 / Interrupt request / FTM1 channel 0 / Reset input | Dual-purpose reset/interrupt pin with asynchronous IRQ path and synchronous FTM1 capture capability |
| PTB0/KBI0P4/RxD0/TCLK0/ADP4 | Port B bit 0 / KBI input 4 / SCI0 receive / Timer clock 0 / ADC channel 4 | True open-drain configuration allows wired-AND logic for RxD0 and supports level-shifting in mixed-voltage systems |
| PTB6/XTAL & PTB7/EXTAL | Clock input/output for external crystal/resonator | Supports Pierce oscillator configuration with internal load capacitors and feedback resistor for 31.25 kHz–20 MHz crystals |
Key Features
| Feature | Design Value |
|---|---|
| On-chip ICE debug module | Two hardware comparators and nine trigger modes enable precise breakpoint placement and state-based trace capture during in-circuit debugging |
| Flash and RAM access protection | Configurable security registers prevent unauthorized read/write access to memory regions, supporting firmware IP protection |
| Programmable pullup resistors | 30–50 kΩ internal pullups on all digital inputs except PTB0 (30–60 kΩ), eliminating need for external biasing components |
| ADC watermark buffering | Data buffers with programmable watermark interrupt allow autonomous data collection and DMA-ready transfer without CPU polling |
| Flexible clock system | ICS with FLL and precision-trimmed internal reference supports stable 20 MHz operation without external crystal in cost-sensitive designs |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor with local display and wireless telemetry. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, RTC-based wake-up scheduling, SCI UART for BLE module communication, and low-power stop3 mode between readings. Use Value: 1.5 µA Stop3 current extends battery life to >5 years; integrated LVD prevents brownout-induced data corruption during voltage sag. |
Use Scenario: Residential HVAC interface with keypad input, LCD backlight control, and relay driver outputs. IC Role / Device Role / Timing Role: Real-time system coordinator using KBI for matrix keypad scan, FTM PWM for dimmable backlight, and SCI for communication with main HVAC controller. Use Value: 8 GPIOs with programmable pullups simplify front-panel wiring; on-chip ACMP monitors supply rail integrity before enabling relays. |
| Motor Control Interface | Legacy Bus Protocol Converter |
Use Scenario: Brushless DC motor commutation sequencer interfacing Hall-effect sensors and gate drivers. IC Role / Device Role / Timing Role: Timing-critical FTM modules generate synchronized PWM outputs while ADC reads current sense and temperature feedback. Use Value: Edge-aligned and center-aligned PWM modes support both trapezoidal and sinusoidal drive; 2.5 µs ADC conversion enables fast current loop closure. |
Use Scenario: RS-485 to LIN gateway translating legacy building automation commands into automotive-grade LIN frames. IC Role / Device Role / Timing Role: Protocol translator using SCI with LIN extension support for frame formatting and checksum generation, plus RTC for timestamping. Use Value: Hardware LIN support eliminates software bit-banging overhead; 16-bit RTC provides accurate event logging without external timing source. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9KEAZ128AMLH | ARM Cortex-M0+ core, 128 KB flash, 16 KB RAM, higher performance but larger footprint (64-pin LQFP) | Requires PCB redesign; suited for applications needing USB, CAN, or higher throughput | Select when migrating from 8-bit to 32-bit architecture with future scalability needs |
| MC9RS08KA2CSC | Smaller 8-bit RS08 core, 2 KB flash, 128 byte RAM, 8-pin SOIC package, lower cost | Limited peripherals: no RTC, single FTM, 4-channel ADC - suitable for simpler control tasks | Choose for space-constrained, cost-sensitive designs where full PL4 feature set is unnecessary |
Compared with MC9S08PL4CTG, S9KEAZ128AMLH offers scalable processing power at the cost of layout change and higher BOM cost, while MC9RS08KA2CSC reduces size and price but sacrifices ADC channels, timers, and RTC - making it viable only for minimal-feature implementations.
Availability
MC9S08PL4CTG is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, motor control interfaces, and legacy bus protocol converters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC9S08PL4CTG 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 is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in microcontrollers and mixed-signal integration.
The MC9S08PL4 series belongs to NXP's legacy S08 8-bit MCU family, designed specifically for cost-sensitive, low-power embedded control applications demanding robust peripheral integration and long-term supply stability in harsh environments.
FAQ
What is the maximum operating frequency and voltage range for the MC9S08PL4CTG?
The MC9S08PL4CTG operates at up to 20 MHz bus frequency across a supply voltage range of 2.7 V to 5.5 V, fully specified over the industrial temperature range of –40 °C to +85 °C. Its internal ICS with FLL supports stable 20 MHz operation using either external crystal (4–20 MHz) or trimmed internal reference, with ±2% frequency deviation across the full temperature range.
Does the MC9S08PL4CTG support in-circuit debugging, and what interface is used?
Yes, the MC9S08PL4CTG supports in-circuit debugging via a single-wire background debug interface (BKGD), compatible with standard BDM tools. It includes on-chip ICE debug logic with two comparators and nine trigger modes, enabling three hardware breakpoints and precise trace capture without requiring additional debug pins beyond BKGD/MS.
How much flash, RAM, and EEPROM does the MC9S08PL4CTG include?
The MC9S08PL4CTG integrates 4,096 bytes of flash memory, 512 bytes of RAM, and 128 bytes of EEPROM. Flash supports read-while-program/erase operations; EEPROM features 2-byte erase sectors and 50 k–500 k program/erase endurance cycles, with data retention rated at 15–100 years at 85 °C junction temperature.
What peripheral modules are integrated into the MC9S08PL4CTG?
The MC9S08PL4CTG integrates an 8-channel 10-bit ADC, one analog comparator (ACMP) with separate rising/falling edge interrupts, two 2-channel FlexTimer Modules (FTM0/FTM1), a 16-bit real-time counter (RTC), one SCI/UART with LIN extension support, and an 8-input keyboard interrupt module (KBI0). All operate within the same low-power framework.
What package type and pin count does the MC9S08PL4CTG use?
The MC9S08PL4CTG uses a 16-pin TSSOP package (JEDEC MO-153), measuring 4.4 mm × 5.0 mm with 0.65 mm lead pitch. This package supports 14 GPIOs (including one true open-drain output), and its pinout is distinct from the 20-pin TSSOP (CTJ) and 8-pin SOIC (CSC) variants in the same PL4 family.
MC9S08PL4CTG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- S08
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- LINbus, SCI, UART/USART
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 14
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 128 x 8
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08PL4CTG FAQ
1.How can I place an order for MC9S08PL4CTG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08PL4CTG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC9S08PL4CTG reliable?
The price and inventory of MC9S08PL4CTG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08PL4CTG is usually 5 days.
3.What payment methods are accepted for MC9S08PL4CTG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08PL4CTG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08PL4CTG?
MC9S08PL4CTG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08PL4CTG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC9S08PL4CTG?
For technical support, including MC9S08PL4CTG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08PL4CTG requirements.
6.How does Aetrix verify that MC9S08PL4CTG is sourced from the original manufacturer or authorized distributors?
All MC9S08PL4CTG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC9S08PL4CTG meets industry standards.
7.What is the process for return or replacement of MC9S08PL4CTG?
All MC9S08PL4CTG units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08PL4CTG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC9S08PL4CTG part is unused and in its original packaging.
Return procedure for MC9S08PL4CTG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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