NXP Semiconductors S9S08RN16W2MLC
- Part No.:
- S9S08RN16W2MLC
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
S9S08RN16W2MLC.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S9S08RN16W2MLC 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 S9S08RN16W2MLC datasheet, S9S08RN16W2MLC pinout, S9S08RN16W2MLC application, or S9S08RN16W2MLC equivalent, this page delivers verified electrical specs, validated peripheral timing, thermal resistance data for 32-pin LQFP, low-power stop3 mode current (4.5 µA), and confirmed ICS/FLL frequency stability (±2% over -40 °C to 125 °C).
Technical Context
The S9S08RN16W2MLC implements an S08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system integrates a loop-controlled Pierce oscillator (XOSC) and an internal clock source (ICS) with frequency-locked-loop (FLL), enabling precise trimming of the internal reference for ±2% deviation across the full -40 °C to 125 °C range.
System protection includes an independent watchdog clock, low-voltage detection with configurable trip points (VLVDH = 4.2–4.4 V, VLVDL = 2.56–2.66 V), illegal opcode/address detection with reset, and flash/RAM access protection. Peripheral integration covers dual SCI/UART, dual FTM modules (6-channel + 2-channel), I²C (400 kbps), SPI, 12-bit ADC (12-channel in 48/32-pin packages), TSI touch sensing, and CRC module.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 8-bit S08 CPU with four-level nested interrupt handling and 40 interrupt/reset sources |
| Max Bus Frequency | 20 MHz at 2.7–5.5 V, fully specified across -40 °C to 125 °C operating range |
| Memory | 16 KB flash (read/program/erase over full voltage/temperature), 256-byte EEPROM with ECC, 2 KB RAM |
| Low-Power Stop3 Current | 4.5 µA at 3 V, -40 °C to 125 °C, with 1 kHz LPO clock active only |
| ADC Resolution & Channels | 12-bit resolution, 12-channel input in 48-/32-pin LQFP packages; 2.5 µs conversion time |
| ICS/FLL Accuracy | ±2% total DCO output deviation over -40 °C to 125 °C; ±1.5% over -40 °C to 105 °C |
| Package Thermal Resistance (θJA) | 88 °C/W on single-layer board, 59 °C/W on four-layer board - for 32-pin LQFP (LC) |
Pinout & Package
32-pin LQFP (package code LC), RoHS-compliant, moisture sensitivity level MSL 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD (digital), VDDA (analog); separate VSS pins ensure noise isolation for ADC/ACMP |
| PTA0–PTA7 | General-purpose I/O port A | 8-bit bidirectional port; PTA2/PTA3 are true open-drain outputs supporting 6 V tolerance |
| 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/resonator connection | Supports Pierce oscillator configuration for 32 kHz–20 MHz crystals or ceramic resonators |
| RESET_B | Active-low reset input | Accepts external reset pulse ≥1.5 × tSelf_reset; supports POR and LVD-initiated resets |
| SCI0_TX / SCI0_RX | Serial communication interface | Full-duplex NRZ UART with LIN extension support; programmable baud rate generator |
| IIC_SDA / IIC_SCL | I²C bus interface | Multi-master capable, 400 kbps max, 7-bit/10-bit addressing, broadcast mode supported |
| FTM0_CH0–CH5 | FlexTimer channel outputs | 6-channel FTM0 supports edge- or center-aligned PWM, input capture, and output compare modes |
Key Features
| Feature | Design Value |
|---|---|
| Flash & EEPROM Protection | Hardware-enforced read/write/erase protection for both flash and EEPROM blocks prevents unauthorized access or corruption |
| Stop3 Mode Power Optimization | Peripheral clock enable register allows selective clock gating during stop3, enabling wake-up from TSI, ADC, or LVD while maintaining sub-5 µA quiescent current |
| On-Chip Debug Interface | Single-wire background debug (BDM) with three hardware breakpoints and integrated ICE module (two comparators, nine trigger modes) |
| Touch Sensing Interface (TSI) | Supports up to 16 electrodes with software/hardware scan triggers; full compatibility with Freescale Touch Sensing Library and stop3 wake-up capability |
| Robust System Monitoring | Dual LVD thresholds (high/low range), independent watchdog with dedicated clock, illegal opcode/address detection - all asserting reset to ensure fail-safe operation |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring of throttle position, coolant temperature, and crankshaft speed in 4-cylinder gasoline engines. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop fuel injection and spark timing algorithms with deterministic 20 MHz bus timing. Use Value: 12-bit ADC with 2.5 µs conversion and hardware-triggered sampling enables precise sensor acquisition synchronized to engine events. |
Use Scenario: Centralized management of door locks, interior lighting, window lift, and mirror controls in premium passenger vehicles. IC Role / Device Role / Timing Role: Low-power master controller interfacing with LIN slaves and driving high-current loads via PTB4/PTB5 (20 mA sink capability). Use Value: Stop3 mode current of 4.5 µA extends battery life during vehicle sleep; TSI supports capacitive touch switches without external components. |
| Automotive Sensor Hub | Industrial Motor Drive Interface |
Use Scenario: Aggregation and preprocessing of signals from pressure, humidity, and ambient light sensors in HVAC control units. IC Role / Device Role / Timing Role: Signal-conditioning node with integrated 12-bit ADC, ACMP, and CRC for data integrity verification before CAN transmission. Use Value: On-chip EEPROM with ECC stores calibrated sensor offsets; I²C interface enables daisy-chained multi-sensor topology. |
Use Scenario: Feedback control interface between microcontroller and gate driver ICs in 24 V DC brushless motor systems. IC Role / Device Role / Timing Role: Real-time PWM generation via dual FTM modules (6-channel + 2-channel) with edge-aligned and dead-time insertion support. Use Value: FTM modules deliver 16-bit resolution PWM at 20 MHz bus rate; SCI0/SCI1 provide isolated UART links to host controller and diagnostics port. |
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 |
|---|---|---|---|
| MC9S08AC128CLD | 128 KB flash, 4 KB RAM, same S08 core but higher memory density; lacks TSI module and stop3 current optimization | Better suited for complex firmware requiring large code space; not optimized for ultra-low-power wake-up sensor nodes | Select when firmware size exceeds 16 KB or when TSI is unnecessary; verify thermal derating for 64-pin LQFP package |
| S9KEAZ128AMLH | Kinetis E-series ARM Cortex-M0+ core, 128 KB flash, 16 KB RAM, 48 MHz max; includes USB, CAN, and enhanced ADC features | Targets next-generation designs requiring CAN connectivity, USB programming, or higher computational throughput | Choose for new designs needing CAN bus integration or future scalability; requires toolchain migration from S08 CodeWarrior to Kinetis Design Studio |
Compared with MC9S08AC128CLD and S9KEAZ128AMLH, the S9S08RN16W2MLC delivers optimal balance of automotive qualification (-40 °C to 125 °C), ultra-low stop3 current (4.5 µA), integrated TSI, and cost-effective 32-pin LQFP packaging - making it ideal for legacy-compatible, power-constrained body electronics and sensor interface roles where ARM migration is not justified.
Availability
S9S08RN16W2MLC is available at Aetrix Electronics and suitable for automotive engine control, body electronics, and industrial sensor interface applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for S9S08RN16W2MLC 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 acquired Freescale in 2015 and maintains full support for the S08 portfolio, delivering automotive-qualified microcontrollers with robust functional safety features and long-term product roadmaps.
The S9S08RN16W2MLC belongs to the S08RN family designed specifically for cost-sensitive, thermally demanding automotive body and powertrain applications requiring extended temperature operation, low-power sleep modes, and integrated analog peripherals.
FAQ
What is the maximum bus frequency and operating voltage range for the S9S08RN16W2MLC?
The S9S08RN16W2MLC 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 S9S08RN16DS Rev 1 datasheet and applies directly to the S9S08RN16W2MLC variant in 32-pin LQFP packaging.
Does the S9S08RN16W2MLC support ultra-low-power operation, and what is its stop3 mode current?
Yes, the S9S08RN16W2MLC supports ultra-low-power stop3 mode with typical current consumption of 4.5 µA at 3 V and -40 °C to 125 °C ambient, measured with only the 1 kHz LPO clock active. This value is confirmed in Table 4 of the S9S08RN16DS datasheet and is critical for battery-backed automotive modules requiring extended sleep duration.
What package type and pin count does the S9S08RN16W2MLC use?
The S9S08RN16W2MLC uses a 32-pin LQFP package, identified by the "LC" suffix in the part number per Section 2.3 of the S9S08RN16DS datasheet. This package has θJA = 88 °C/W on single-layer boards and 59 °C/W on four-layer boards, enabling reliable thermal performance in under-hood automotive environments.
Which analog peripherals are integrated into the S9S08RN16W2MLC?
The S9S08RN16W2MLC integrates a 12-bit, 12-channel ADC (in 32-pin LQFP), a single analog comparator (ACMP) with filtering and independent rising/falling edge interrupts, and a buffered bandgap reference (VBG = 1.14–1.18 V). These are fully operational in stop3 mode, enabling low-power sensor wake-up functionality.
Is the S9S08RN16W2MLC qualified for automotive applications, and what is its temperature rating?
Yes, the S9S08RN16W2MLC is automotive-qualified with an operating temperature range of -40 °C to 125 °C, as explicitly stated in the datasheet's "Key features" section and Table 8 (Thermal characteristics). It meets AEC-Q100 stress test requirements for Grade 1 (–40 °C to 125 °C) devices, making it suitable for engine bay and chassis-mounted applications.
S9S08RN16W2MLC 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:
- 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:
S9S08RN16W2MLC FAQ
1.How can I place an order for S9S08RN16W2MLC through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08RN16W2MLC 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 S9S08RN16W2MLC reliable?
The price and inventory of S9S08RN16W2MLC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08RN16W2MLC is usually 5 days.
3.What payment methods are accepted for S9S08RN16W2MLC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08RN16W2MLC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08RN16W2MLC?
S9S08RN16W2MLC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08RN16W2MLC 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 S9S08RN16W2MLC?
For technical support, including S9S08RN16W2MLC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08RN16W2MLC requirements.
6.How does Aetrix verify that S9S08RN16W2MLC is sourced from the original manufacturer or authorized distributors?
All S9S08RN16W2MLC 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 S9S08RN16W2MLC meets industry standards.
7.What is the process for return or replacement of S9S08RN16W2MLC?
All S9S08RN16W2MLC units undergo pre-shipment inspection (PSI). If there is an issue with S9S08RN16W2MLC, 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 S9S08RN16W2MLC part is unused and in its original packaging.
Return procedure for S9S08RN16W2MLC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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