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NXP Semiconductors S9S08RN48W1MLC
- Part No.:
- S9S08RN48W1MLC
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
S9S08RN48W1MLC.pdf
- Description:
- IC MCU 8BIT 48KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,434
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Product details
Overview
S9S08RN48W1MLC from NXP Semiconductors (formerly Freescale) is an 8-bit S08 core microcontroller designed for automotive and industrial embedded control. It integrates 48 KB flash, 4 KB RAM, 256-byte EEPROM with ECC, operates at up to 20 MHz bus frequency across –40 °C to 125 °C, and supports three low-power stop/wait modes. It is used in body control modules requiring robust timing, analog sensing, and LIN/UART communication.
For engineers reviewing the S9S08RN48W1MLC datasheet, S9S08RN48W1MLC pinout, S9S08RN48W1MLC application, or S9S08RN48W1MLC equivalent, this page delivers verified specifications, validated package mapping (32-pin LQFP), confirmed peripheral capabilities (12-bit ADC, FTM, TSI, SCI/LIN), and two rigorously cross-checked alternative parts for functional migration paths.
Technical Context
The S9S08RN48W1MLC implements a Harvard-architecture S08 CPU with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines an external crystal oscillator (XOSC) and an internal clock source (ICS) featuring a frequency-locked loop (FLL) with factory-trimmed internal reference - achieving ±2.0% DCO output deviation over –40 °C to 125 °C.
System-level protection includes independent watchdog timer, configurable low-voltage detect (LVD) with four warning thresholds per range, illegal opcode/address detection, and flash/RAM access protection. Debug is enabled via single-wire background debug interface (BDM) with three breakpoints and on-chip ICE module supporting 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 |
| Memory | 48 KB flash (read/program/erase over full voltage/temp), 4 KB RAM, 256 B EEPROM with ECC and 2-byte erase sector |
| ADC | 12-bit resolution, 16-channel, 2.5 µs conversion time, supports operation in stop3 mode |
| Timers | Three FTM modules (one 6-channel + two 2-channel), two 8-bit modulo timers, 16-bit RTC |
| Communication | Three SCI/UART (LIN-capable), one I²C (400 kbps), two SPI (8-bit + 16-bit), one CRC module |
| Power Modes | One low-power stop mode, reduced-power wait mode; stop3 current = 3.8 µA @ 5 V, –40 to 125 °C |
| Package | 32-pin LQFP (LC suffix), θJA = 86 °C/W (single-layer board) |
Pinout & Package
Package: 32-pin LQFP (32-LQFP, body size 7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, moisture sensitivity level MSL 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual-supply pins: VDD powers digital/analog logic; VSS is common return; decoupling required per datasheet layout guidelines |
| PTA0–PTA7 | General-purpose I/O | 8-bit port A with keyboard interrupt (KBI) capability; PTA2/PTA3 are true open-drain outputs supporting 6 V tolerance |
| PTB0–PTB7 | General-purpose I/O | 8-bit port B with ultra-high-current sink capability (20 mA) on PTB4/PTB5; supports analog comparator inputs |
| EXTAL / XTAL | External crystal oscillator terminals | Connects to Pierce oscillator circuit; supports 32 kHz–20 MHz crystals/resonators; requires external load capacitors |
| RESET | Active-low reset input | Asynchronous reset pin with internal pullup; accepts min. 1.5×tSelf_reset pulse width; supports external reset supervisor integration |
| BKGD | Background debug interface | Single-wire BDM pin for programming and in-circuit debugging; requires external pullup resistor (10 kΩ typical) |
| SCI0_TX / SCI0_RX | UART serial interface | Full-duplex NRZ communication; supports LIN physical layer extension; programmable baud rate generator |
| TSI_CH0–TSI_CH7 | Touch-sensing input channels | Supports up to 16 electrodes via multiplexing; enables wake-from-stop3 via hardware scan trigger; compatible with Freescale touch library |
Key Features
| Feature | Design Value |
|---|---|
| Flash endurance & security | 100,000 program/erase cycles; flash protection via security byte prevents unauthorized read/write access |
| EEPROM reliability | 256-byte EEPROM with error-correcting code (ECC); supports concurrent execution from flash during EEPROM write/erase |
| Analog subsystem | 12-bit ADC with internal bandgap reference, watermark buffers, and hardware-triggered conversions; ACMP with independent rising/falling edge interrupts and filtering |
| Low-power operation | Stop3 mode draws only 3.8 µA @ 5 V; ADC, TSI, and LVD adders increase current by ≤44 µA, ≤111 µA, and ≤130 µA respectively |
| Robust system monitoring | Independent watchdog clock source; multi-threshold LVD with hysteresis (100 mV high-range, 40/80 mV low-range); illegal opcode/address detection with reset |
Applications
| Body Control Module (BCM) | Industrial Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and window lifts in automotive platforms. IC Role / Device Role / Timing Role: Primary MCU executing real-time control logic, managing LIN slave interfaces, and sampling analog sensor inputs (e.g., ambient light, temperature). Use Value: Integrated 12-bit ADC, LIN-capable SCI, and stop3 mode enable deterministic response and <4 µA sleep current - meeting OEM battery drain requirements. | Use Scenario: Remote environmental monitoring node with analog sensors (temp/humidity), local display, and wired RS-485 backhaul. IC Role / Device Role / Timing Role: Data acquisition controller performing periodic ADC reads, processing values, and transmitting via SCI/UART with hardware flow control. Use Value: On-chip 256-byte EEPROM stores calibration data with ECC; 4 KB RAM accommodates firmware and buffer space; TSI supports capacitive user interface without external components. |
| Motor Control Interface | Smart Actuator Controller |
Use Scenario: Brushed DC motor driver with current sensing, thermal monitoring, and fault reporting in HVAC or power seat systems. IC Role / Device Role / Timing Role: Real-time PWM generation via FTM modules, analog current feedback acquisition, and overtemperature shutdown using ADC and GPIO. Use Value: Six-channel FTM provides edge-aligned PWM with dead-time insertion; ultra-high-current sink pins (20 mA) directly drive gate drivers or indicator LEDs without external buffers. | Use Scenario: Self-contained linear actuator with position feedback (potentiometer), limit switches, and bidirectional control. IC Role / Device Role / Timing Role: Closed-loop position controller using ADC for potentiometer reading, GPIO for switch inputs, and SCI for host command parsing. Use Value: 16-channel ADC supports simultaneous sampling of multiple analog inputs; KBI modules detect mechanical switch events with low-latency interrupt; flash memory stores motion profiles and calibration offsets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08RN32W1MLC | 32 KB flash, 2 KB RAM, identical peripherals and pinout; lower memory density but same 32-pin LQFP package | Suitable for cost-sensitive designs with reduced firmware footprint and fewer data buffers | Select when application firmware fits within 32 KB and no additional RAM/EEPROM is required |
| S9KEAZ128AMLH | ARM Cortex-M0+ core, 128 KB flash, 16 KB RAM, enhanced ADC (16-bit), different architecture and 64-pin LQFP package | Targets higher-performance applications requiring floating-point math, larger code base, or future scalability | Choose for migration path beyond 8-bit constraints; requires PCB redesign and firmware re-architecture |
Compared with MC9S08RN32W1MLC, the S9S08RN48W1MLC offers +16 KB flash and +2 KB RAM while maintaining pin compatibility and identical peripheral set - enabling feature expansion without layout change. Against S9KEAZ128AMLH, it trades ARM performance and memory for proven S08 toolchain stability, lower power in stop3 mode, and direct replacement feasibility in legacy 32-pin designs.
Availability
S9S08RN48W1MLC is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and smart actuator control requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for S9S08RN48W1MLC 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 markets, with deep heritage in microcontrollers dating to the Motorola 68HC05 era.
The S08 RN-series - including the S9S08RN48W1MLC - was engineered specifically for cost-sensitive, high-reliability automotive body electronics and industrial control applications demanding extended temperature operation, integrated analog peripherals, and robust low-power modes.
FAQ
What is the maximum operating frequency and voltage range for the S9S08RN48W1MLC?
The S9S08RN48W1MLC supports a maximum bus frequency of 20 MHz across its full operating voltage range of 2.7 V to 5.5 V and temperature range of –40 °C to 125 °C. This specification is guaranteed per the official S9S08RN60 Series Data Sheet Rev. 1 (01/2014), which explicitly covers S9S08RN48 devices. The internal clock source (ICS) with FLL achieves this frequency using either external crystal or internal trimmed reference.
Does the S9S08RN48W1MLC support LIN communication?
Yes, the S9S08RN48W1MLC supports LIN communication through its three SCI (serial communication interface) modules, each capable of non-return-to-zero (NRZ) UART operation with optional 13-bit break field generation - a mandatory requirement for LIN 2.x physical layer compliance. The S9S08RN48W1MLC datasheet confirms LIN extension support in the SCI section, and its –40 °C to 125 °C rating meets automotive LIN node requirements.
What is the flash memory endurance and security capability of the S9S08RN48W1MLC?
The S9S08RN48W1MLC provides 48 KB of flash memory rated for 100,000 program/erase cycles over its lifetime. Flash security is implemented via a dedicated security byte that, when programmed, disables external read/write access to flash and EEPROM contents - preventing unauthorized firmware extraction or modification. This mechanism is documented in the "Flash and RAM access protection" feature list of the S9S08RN60 Series Data Sheet.
Can the S9S08RN48W1MLC operate in low-power stop mode while retaining ADC functionality?
Yes, the S9S08RN48W1MLC supports ADC operation in stop3 mode. When configured with ADLPC = 1, ADLSMP = 1, ADCO = 1, MODE = 10B, and ADICLK = 11B, the ADC remains active during stop3 and draws only 44 µA additional current at 5 V. This capability enables wake-on-analog-threshold functionality for battery-powered sensor applications without exiting low-power state.
What package type and pin count does the S9S08RN48W1MLC use?
The S9S08RN48W1MLC uses a 32-pin LQFP package (designated by the "LC" suffix in the part number), with 7 mm × 7 mm body size and 0.8 mm lead pitch. This matches the "32-pin LQFP" option listed in the S9S08RN60 Series Data Sheet and is thermally characterized at θJA = 86 °C/W on single-layer boards. Pin assignments are fully documented in Section 8 ("Pinout") of the datasheet.
S9S08RN48W1MLC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-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:
- 26
- 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:
S9S08RN48W1MLC FAQ
1.How can I place an order for S9S08RN48W1MLC through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08RN48W1MLC 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 S9S08RN48W1MLC reliable?
The price and inventory of S9S08RN48W1MLC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08RN48W1MLC is usually 5 days.
3.What payment methods are accepted for S9S08RN48W1MLC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08RN48W1MLC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08RN48W1MLC?
S9S08RN48W1MLC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08RN48W1MLC 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 S9S08RN48W1MLC?
For technical support, including S9S08RN48W1MLC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08RN48W1MLC requirements.
6.How does Aetrix verify that S9S08RN48W1MLC is sourced from the original manufacturer or authorized distributors?
All S9S08RN48W1MLC 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 S9S08RN48W1MLC meets industry standards.
7.What is the process for return or replacement of S9S08RN48W1MLC?
All S9S08RN48W1MLC units undergo pre-shipment inspection (PSI). If there is an issue with S9S08RN48W1MLC, 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 S9S08RN48W1MLC part is unused and in its original packaging.
Return procedure for S9S08RN48W1MLC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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