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NXP Semiconductors S9S08RNA48W1MLF
- Part No.:
- S9S08RNA48W1MLF
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S08RNA48W1MLF.pdf
- Description:
- IC MCU 8BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
S9S08RNA48W1MLF from NXP Semiconductors (formerly Freescale) is an 8-bit S08 core microcontroller designed for automotive and industrial embedded control. It integrates 48 KB flash, 256-byte EEPROM with ECC, 4 KB RAM, and operates at up to 20 MHz bus frequency across –40 °C to 125 °C. Key peripherals include three FTM timer modules, 12-bit 16-channel ADC, I²C, three SCI/UARTs, two SPI interfaces, TSI capacitive touch sensing, and on-chip debug via single-wire BDM.
For engineers reviewing the S9S08RNA48W1MLF datasheet, S9S08RNA48W1MLF pinout, S9S08RNA48W1MLF application, or S9S08RNA48W1MLF equivalent, this page delivers verified technical context, package mapping, real-world use scenarios, and validated alternative options - all grounded in the official S9S08RN60 Series Data Sheet Rev. 1 (01/2014) and NXP's documented part numbering scheme.
Technical Context
The S9S08RNA48W1MLF implements the S08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines an external crystal/ceramic oscillator (XOSC) and an internal clock source (ICS) featuring a frequency-locked loop (FLL), with factory-trimmed DCO output delivering ±2.0% deviation over –40 °C to 125 °C.
System protection includes independent watchdog timer, low-voltage detection with configurable trip points (e.g., VLVDH = 4.2–4.4 V, VLVDL = 2.56–2.66 V), illegal opcode/address detection, and flash/RAM access protection. Power management supports Stop3 mode with typical 3.8 µA supply current (5 V) and peripheral wake-up capability via TSI, ADC, or LVD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 8-bit S08 CPU with four-level nested interrupts and 40 interrupt/reset sources |
| Flash Memory | 48 KB program/erase flash, rated over full 2.7–5.5 V and –40 °C to 125 °C operating range |
| EEPROM | 256 bytes with ECC, 2-byte erase sectors, and concurrent program/erase while executing from flash |
| RAM | 4096 bytes (4 KB) random-access memory with retention down to 2.0 V |
| Bus Frequency | Up to 20 MHz at 2.7–5.5 V; supports FEI/FBE/FBELP clock modes |
| ADC | 16-channel, 12-bit resolution, 2.5 µs conversion time, internal bandgap reference, stop-mode operation |
| TSI | Capacitive touch sensing interface supporting up to 16 electrodes; hardware/software scan trigger; wake from Stop3 |
| Package | 48-pin LQFP (LF), thermal resistance θJA = 81 °C/W (single-layer board) |
Pinout & Package
48-pin LQFP (LF) package, 7 mm × 7 mm body, 0.5 mm pitch, exposed pad optional per NXP standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD (digital), VSS (common ground); VDDA referenced for analog peripherals |
| PTA0–PTA7 | General-purpose I/O | 8-bit port A with KBI0 interrupt capability; PTA2/PTA3 are true open-drain outputs |
| PTB0–PTB7 | General-purpose I/O | 8-bit port B with KBI1 interrupt; PTB4/PTB5 support ultra-high current sink (20 mA) |
| EXTAL / XTAL | External oscillator input/output | Connects to crystal or ceramic resonator for XOSC; supports 32 kHz–20 MHz range |
| RESET | Active-low reset input | Asynchronous reset with internal pullup; accepts min. 1.5×tSelf_reset pulse width |
| BKGD | Background debug pin | Single-wire BDM interface for programming and in-circuit debugging |
| SCI0_TX / SCI0_RX | Serial communication | Full-duplex UART channel 0 with LIN extension support and 13-bit break detection |
| FTM0_CH0–CH5 | FlexTimer output | 6-channel FTM0 supports PWM, input capture, and edge/center-aligned modes |
Key Features
| Feature | Design Value |
|---|---|
| Flash security | Programmable flash protection prevents unauthorized read/write/erase of code and data |
| Stop3 low-power mode | 3.8 µA typical supply current (5 V) with 1 kHz LPO clock active; supports wake via TSI, ADC, LVD, or RTC |
| ADC watermark buffering | Configurable data buffers with programmable watermark interrupt to reduce CPU polling overhead |
| TSI electrode scalability | Supports up to 16 external electrodes with software/hardware scan triggers and full Freescale TSS library compatibility |
| Peripheral clock gating | Individual enable/disable control per module via peripheral clock enable register to minimize dynamic power |
| On-chip ICE debug | Two comparators and nine trigger modes enable precise breakpoint and trace analysis during development |
Applications
| Automotive Body Control Module | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing real-time control logic, managing CAN/LIN communication, and interfacing with analog sensors and H-bridge drivers. Use Value: 48 KB flash accommodates multi-function firmware; TSI enables capacitive touch controls; Stop3 mode reduces quiescent current in sleep states. | Use Scenario: Closed-loop speed/torque control of BLDC or stepper motors in HVAC blowers, pumps, and conveyors. IC Role / Device Role / Timing Role: Real-time motor commutation controller using FTM PWM outputs, ADC current/voltage feedback, and SCI-based host command interface. Use Value: Six-channel FTM0 provides precise 3-phase PWM generation; 12-bit ADC ensures accurate current sensing; 20 MHz bus enables fast control loop execution. |
| Smart Appliance User Interface | Heavy-Duty Equipment Monitor |
Use Scenario: Touch-enabled front panel for ovens, dishwashers, and laundry machines with status display and safety interlocks. IC Role / Device Role / Timing Role: Dedicated HMI controller handling capacitive touch scanning, LED/button management, and serial communication to main system MCU. Use Value: Integrated TSI eliminates external touch controller; 16-electrode support enables complex UI layouts; EEPROM stores calibration and usage data with ECC. | Use Scenario: Condition monitoring of hydraulic pressure, temperature, and vibration in construction and agricultural machinery. IC Role / Device Role / Timing Role: Sensor aggregation node converting analog inputs (pressure transducers, thermistors) and digital signals (switches, encoders) into CAN messages. Use Value: 16-channel ADC interfaces multiple sensors simultaneously; wide –40 °C to 125 °C rating ensures reliability in engine bay environments; LVD detects brownout before critical failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08RN48CFUE | Same S08RN family, identical 48 KB flash, 4 KB RAM, and peripheral set; differs only in temperature grade (–40 °C to 105 °C vs. –40 °C to 125 °C) and package (44-pin QFP vs. 48-pin LQFP) | Not qualified for under-hood automotive use above 105 °C; suitable for industrial panels and consumer appliances with lower ambient limits | Select when extended temperature operation is unnecessary and QFP footprint is preferred |
| S9KEAZN64AMLH | Kinetis E-series ARM Cortex-M0+ core; 64 KB flash, 8 KB RAM; higher performance but no TSI, different peripheral mix (no FTM6, adds USB, DMA), and larger 64-pin LQFP package | Targets next-generation designs requiring upgrade path to 32-bit; lacks native capacitive touch support and requires external TSI IC or redesign | Select for new designs needing scalable architecture and future-proofing, not drop-in replacement |
Compared with MC9S08RN48CFUE, the S9S08RNA48W1MLF offers guaranteed operation up to 125 °C and LQFP-48 packaging optimized for automated assembly; versus S9KEAZN64AMLH, it delivers proven 8-bit deterministic timing, lower BOM cost, and integrated TSI - critical for cost-sensitive, touch-enabled legacy platforms.
Availability
S9S08RNA48W1MLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, smart appliance HMIs, and heavy-duty equipment monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S9S08RNA48W1MLF 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in microcontrollers dating back to Motorola and Freescale.
The S08RN family - including the S9S08RNA48W1MLF - was engineered specifically for cost-optimized, high-reliability embedded control in harsh environments, emphasizing robust flash endurance, extended temperature operation, and integrated human-machine interface peripherals like TSI.
FAQ
What is the maximum operating temperature specification for the S9S08RNA48W1MLF?
The S9S08RNA48W1MLF is fully specified for continuous operation from –40 °C to +125 °C ambient temperature, as confirmed in the S9S08RN60 Series Data Sheet Rev. 1 (01/2014), Table 8. This rating applies to all electrical parameters including flash endurance, ADC accuracy, and I/O drive strength, making it suitable for under-hood automotive and industrial control applications where thermal stress is critical. The junction temperature limit is 135 °C.
Does the S9S08RNA48W1MLF support capacitive touch sensing without external components?
Yes, the S9S08RNA48W1MLF integrates a dedicated Touch Sensing Interface (TSI) module that supports up to 16 external electrodes with fully configurable software or hardware scan triggers. It requires no external ICs or dedicated touch controller chips and is fully compatible with the legacy Freescale Touch Sensing Software Library. The TSI can wake the MCU from Stop3 mode, enabling ultra-low-power touch-responsive designs.
What are the key differences between the S9S08RNA48W1MLF and the S9S08RN60W1MLF?
The S9S08RNA48W1MLF and S9S08RN60W1MLF share identical architecture, peripherals, pinout, and temperature rating (–40 °C to 125 °C), differing only in flash capacity: 48 KB vs. 60 KB. Both use the same 48-pin LQFP (LF) package and support identical clocking, debug, and power modes. Firmware compiled for one can typically run on the other if flash usage remains within 48 KB, though linker scripts must be adjusted for memory map alignment.
Can the S9S08RNA48W1MLF execute code while erasing or programming its EEPROM?
Yes, the S9S08RNA48W1MLF supports EEPROM program and erase operations while executing code from flash memory. Its 256-byte EEPROM includes ECC protection and uses 2-byte erase sectors, enabling atomic updates of configuration or calibration data without halting application execution - a key requirement for fail-safe automotive and industrial systems where uninterrupted operation is mandatory.
What debug interface does the S9S08RNA48W1MLF provide, and what tools are compatible?
The S9S08RNA48W1MLF features a single-wire Background Debug Mode (BDM) interface compliant with Freescale/NXP standards. It supports in-circuit programming, real-time variable inspection, and up to three hardware breakpoints. Compatible tools include the NXP Multilink Universal FX, PE Micro Cyclone Pro, and legacy Freescale DEMO9S08RN60 evaluation boards with BDM firmware. No JTAG adapter is required.
S9S08RNA48W1MLF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- S08
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 39
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08RNA48W1MLF FAQ
1.How can I place an order for S9S08RNA48W1MLF through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08RNA48W1MLF 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 S9S08RNA48W1MLF reliable?
The price and inventory of S9S08RNA48W1MLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08RNA48W1MLF is usually 5 days.
3.What payment methods are accepted for S9S08RNA48W1MLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08RNA48W1MLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08RNA48W1MLF?
S9S08RNA48W1MLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08RNA48W1MLF 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 S9S08RNA48W1MLF?
For technical support, including S9S08RNA48W1MLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08RNA48W1MLF requirements.
6.How does Aetrix verify that S9S08RNA48W1MLF is sourced from the original manufacturer or authorized distributors?
All S9S08RNA48W1MLF 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 S9S08RNA48W1MLF meets industry standards.
7.What is the process for return or replacement of S9S08RNA48W1MLF?
All S9S08RNA48W1MLF units undergo pre-shipment inspection (PSI). If there is an issue with S9S08RNA48W1MLF, 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 S9S08RNA48W1MLF part is unused and in its original packaging.
Return procedure for S9S08RNA48W1MLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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