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NXP Semiconductors S9S08RN16W2MLF
- Part No.:
- S9S08RN16W2MLF
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S08RN16W2MLF.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,324
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Product details
Overview
S9S08RN16W2MLF from NXP Semiconductors (formerly Freescale) is an automotive-grade 8-bit S08 microcontroller featuring a 20 MHz bus frequency, 16 KB flash memory, 256-byte EEPROM with ECC, and 2 KB RAM, operating across –40 °C to 125 °C for engine control, body electronics, and sensor interface applications.
For engineers reviewing the S9S08RN16W2MLF datasheet, S9S08RN16W2MLF pinout, S9S08RN16W2MLF application, or S9S08RN16W2MLF equivalent, this page delivers verified technical context, validated package mapping (48-pin LQFP), confirmed peripheral integration (dual SCI, FTM, TSI, ADC), and real-world selection guidance for industrial and automotive embedded designs.
Technical Context
The S9S08RN16W2MLF implements an S08 CPU core with nested four-level interrupt handling and up to 40 interrupt/reset sources, enabling deterministic real-time response in safety-critical subsystems. Its ICS clock system integrates a frequency-locked loop (FLL) with factory-trimmed internal reference, delivering ±2% DCO output deviation over –40 °C to 125 °C.
System protection includes independent watchdog timing, configurable low-voltage detect/warning thresholds (VLVDH = 4.2–4.4 V, VLVDL = 2.56–2.66 V), illegal opcode/address detection, and flash/RAM access protection-meeting ASIL-B supporting requirements for automotive powertrain and chassis modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 8-bit S08 CPU with up to 20 MHz bus frequency at 2.7–5.5 V supply |
| Memory | 16 KB flash (read/program/erase over full voltage/temperature), 256 B EEPROM with ECC, 2 KB RAM |
| ADC | 12-channel, 12-bit resolution; 2.5 µs conversion time; supports stop mode operation and hardware trigger |
| Timers | Two FTM modules (6-channel + 2-channel); 16-bit counter; input capture, PWM, edge/center-aligned modes |
| Communication | Dual SCI (UART/LIN-capable), one I²C (400 kbps), one SPI, one CRC module |
| Power Modes | Stop3 mode draws 4.6 µA (5 V); supports RTC, ADC, TSI, and LVD wake-up with 1 kHz LPO clock active |
| Operating Range | –40 °C to 125 °C ambient; qualified per AEC-Q100 Grade 1; VDD = 2.7–5.5 V |
Pinout & Package
Package: 48-pin LQFP (LF suffix), 7 mm × 7 mm, 0.5 mm pitch, RoHS-compliant, moisture sensitivity level MSL 3.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual-supply pins for digital core; separate analog supply (VDDA) referenced to VDD ±0.3 V |
| PTA0–PTA7 | General-purpose I/O port A | 8-bit port with keyboard interrupt (KBI) support; PTA2/PTA3 are true open-drain outputs |
| PTB0–PTB7 | General-purpose I/O port B | Includes ultra-high-current sink pins PTB4/PTB5 (20 mA source/sink capability) |
| EXTAL/XTAL | External crystal oscillator inputs | Supports Pierce oscillator configuration with 32 kHz–20 MHz crystals or ceramic resonators |
| RESET_B | Active-low reset input | Asynchronous reset with 1.5×tSelf_reset minimum pulse width; internal pullup enabled on power-up |
| BKGD | Single-wire background debug | Enables in-circuit debugging via BDM interface; supports three breakpoints and on-chip ICE module |
Key Features
| Feature | Design Value |
|---|---|
| Flash & EEPROM reliability | 16 KB flash with read-while-write; 256 B EEPROM with ECC and 2-byte erase sectors enables robust firmware updates and parameter storage |
| Low-power operation | Stop3 mode consumes only 4.6 µA at 5 V; peripherals like TSI, ADC, and LVD remain active for event-driven wake-up |
| Touch sensing interface | TSI module supports up to 16 electrodes with software/hardware scan trigger and stop3 wake-up-ideal for automotive cabin controls |
| Automotive-grade clocking | ICS with FLL achieves ±2% frequency accuracy over –40 °C to 125 °C; external XOSC supports crystal start-up in ≤3 ms (high range) |
| Robust system monitoring | Independent watchdog, multi-threshold LVD (detect/warning), illegal opcode/address detection, and flash/RAM protection prevent runtime faults |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring of throttle position, coolant temperature, and crankshaft angle in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Central controller executing closed-loop fuel injection and spark timing algorithms with deterministic interrupt latency. Use Value: 20 MHz bus speed and four-level nested interrupts ensure sub-microsecond response to critical sensor events under full thermal stress (–40 °C to 125 °C). |
Use Scenario: Managing door locks, window lifts, lighting sequences, and HVAC fan control in passenger compartments. IC Role / Device Role / Timing Role: Low-power coordinator interfacing with LIN slaves, driving high-current loads (e.g., window motors), and detecting user touch inputs. Use Value: Ultra-high-current sink pins (20 mA) directly drive solenoids; TSI module enables capacitive touch buttons without external ICs; Stop3 mode extends battery life during vehicle sleep. |
| Advanced Driver Assistance Systems (ADAS) Sensor Interface | Industrial Motor Control Panel |
Use Scenario: Signal conditioning and preprocessing for radar proximity sensors, ultrasonic parking aids, or camera focus actuators. IC Role / Device Role / Timing Role: Analog front-end processor acquiring ADC data from transducer signals and communicating results via SCI or I²C to host MCU. Use Value: 12-bit ADC with 2.5 µs conversion and automatic compare function enables rapid threshold-based event detection; internal bandgap reference ensures stable measurements across temperature. |
Use Scenario: Local control of stepper/servo motor drivers, status LED arrays, pushbutton interfaces, and fault reporting in factory automation panels. IC Role / Device Role / Timing Role: Human-machine interface (HMI) controller managing tactile inputs, visual feedback, and serial communication with PLCs. Use Value: Dual SCI ports support simultaneous Modbus RTU and debug logging; KBI module scans mechanical keypads with minimal CPU overhead; 48-pin LQFP provides ample GPIO for discrete I/O expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08RN16W2MLF | Same silicon die and functional spec; legacy Freescale part number superseded by S9S08RN16W2MLF post-NXP acquisition | No functional difference; identical qualification, pinout, and firmware compatibility | Select S9S08RN16W2MLF for current sourcing and long-term availability; MC9S08RN16W2MLF may face obsolescence risk |
| S9S08RN8W2MLF | Same package and peripherals but reduced 8 KB flash, 128 B EEPROM, and 1 KB RAM; otherwise identical clocking, I/O, and temperature rating | Suitable for cost-sensitive applications with smaller firmware footprints and fewer stored parameters | Choose S9S08RN8W2MLF only when code size and EEPROM usage are confirmed <8 KB and <128 B respectively |
Compared with S9S08RN16W2MLF, MC9S08RN16W2MLF offers identical functionality but lacks NXP's extended lifecycle support, while S9S08RN8W2MLF trades memory capacity for lower unit cost-making both viable alternatives only when their specific resource constraints align with design requirements.
Availability
S9S08RN16W2MLF is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS sensor interfaces requiring stable component supply across automotive production lifecycles.
Supply support for S9S08RN16W2MLF 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 leader in secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in microcontrollers dating back to Motorola and Freescale.
The S9S08RN16W2MLF belongs to the S08RN automotive microcontroller family, designed specifically for cost-optimized, thermally robust control in powertrain, chassis, and body electronics where ASIL-B support and extended temperature operation are mandatory.
FAQ
What is the maximum bus frequency supported by the S9S08RN16W2MLF?
The S9S08RN16W2MLF supports a maximum bus frequency of 20 MHz across its full operating voltage range (2.7 V to 5.5 V) and temperature range (–40 °C to 125 °C). This performance is achieved using the internal clock source (ICS) with frequency-locked loop (FLL) and is guaranteed by characterization testing per Freescale Semiconductor Document Number S9S08RN16DS Rev 1.
Does the S9S08RN16W2MLF support in-circuit debugging, and what interface is used?
Yes, the S9S08RN16W2MLF supports in-circuit debugging via a single-wire background debug (BDM) interface on the BKGD pin. It includes breakpoint capability for up to three breakpoints and an on-chip in-circuit emulator (ICE) module with two comparators and nine trigger modes-enabling full visibility into program flow and register states during development and validation of S9S08RN16W2MLF-based systems.
What are the key low-power modes available on the S9S08RN16W2MLF, and how does Stop3 mode operate?
The S9S08RN16W2MLF offers multiple low-power modes including Wait and Stop3. Stop3 mode disables all clocks except the 1 kHz low-power oscillator (LPO), drawing just 4.6 µA at 5 V. Peripherals such as the real-time counter (RTC), analog-to-digital converter (ADC), touch-sensing interface (TSI), and low-voltage detector (LVD) can remain active and wake the S9S08RN16W2MLF on event-making it ideal for battery-backed automotive modules requiring ultra-low quiescent current.
Can the S9S08RN16W2MLF drive high-current loads directly, and which pins support this capability?
Yes, the S9S08RN16W2MLF features four ultra-high-current sink pins capable of sourcing or sinking up to 20 mA each. Specifically, PTB4 and PTB5 are designated for this function and are rated for 20 mA source/sink current at 5 V-enabling direct drive of LEDs, relays, or small solenoids without external driver circuitry in S9S08RN16W2MLF-based control designs.
What is the ADC resolution and channel count for the S9S08RN16W2MLF, and does it support operation in low-power modes?
The S9S08RN16W2MLF integrates a 12-channel, 12-bit analog-to-digital converter with 2.5 µs conversion time, internal bandgap reference, and optional hardware triggering. Crucially, the ADC remains fully operational in Stop3 mode-allowing continuous sensor monitoring (e.g., temperature, pressure) while maintaining ultra-low system current, a key capability confirmed in Table 4 of the S9S08RN16DS datasheet for S9S08RN16W2MLF.
S9S08RN16W2MLF 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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08RN16W2MLF FAQ
1.How can I place an order for S9S08RN16W2MLF through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08RN16W2MLF 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 S9S08RN16W2MLF reliable?
The price and inventory of S9S08RN16W2MLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08RN16W2MLF is usually 5 days.
3.What payment methods are accepted for S9S08RN16W2MLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08RN16W2MLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08RN16W2MLF?
S9S08RN16W2MLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08RN16W2MLF 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 S9S08RN16W2MLF?
For technical support, including S9S08RN16W2MLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08RN16W2MLF requirements.
6.How does Aetrix verify that S9S08RN16W2MLF is sourced from the original manufacturer or authorized distributors?
All S9S08RN16W2MLF 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 S9S08RN16W2MLF meets industry standards.
7.What is the process for return or replacement of S9S08RN16W2MLF?
All S9S08RN16W2MLF units undergo pre-shipment inspection (PSI). If there is an issue with S9S08RN16W2MLF, 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 S9S08RN16W2MLF part is unused and in its original packaging.
Return procedure for S9S08RN16W2MLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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