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NXP Semiconductors S9S08RNA16W2MTJ
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- Part No.:
- S9S08RNA16W2MTJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
S9S08RNA16W2MTJ.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,352
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Product details
Overview
S9S08RNA16W2MTJ from NXP Semiconductors (formerly Freescale) is an automotive-grade 8-bit S08 microcontroller with 16 KB flash, 256-byte EEPROM with ECC, and 2 KB RAM, operating at up to 20 MHz bus frequency across -40 °C to 125 °C. It integrates ADC (10-channel, 10-bit), dual SCI/UART, I²C, SPI, FTM timers, TSI touch sensing, and low-voltage detection-targeting engine control units, body electronics, and motor drive subsystems.
For engineers reviewing the S9S08RNA16W2MTJ datasheet, S9S08RNA16W2MTJ pinout, S9S08RNA16W2MTJ application, or S9S08RNA16W2MTJ equivalent, this page delivers verified technical context, validated package mapping (20-pin TSSOP), confirmed peripheral timing specs, and two rigorously cross-referenced alternative MCUs for functional migration paths in automotive embedded designs.
Technical Context
The S9S08RNA16W2MTJ implements an S08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines a Pierce external oscillator (XOSC) and an internal clock source (ICS) with FLL, delivering ±2% DCO frequency deviation over -40 °C to 125 °C and enabling stable operation in under-hood environments.
System protection includes independent watchdog timer, programmable 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 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 | 16 KB flash (read/program/erase over full voltage/temp), 256 B EEPROM with ECC, 2 KB RAM |
| ADC | 10-channel, 10-bit resolution, 2.5 µs conversion time, supports stop mode operation |
| Temperature Range | -40 °C to +125 °C ambient, qualified for automotive AEC-Q100 Grade 1 |
| Supply Current | 4.6 µA typical in Stop3 mode (1 kHz LPO active), 7.6 mA typical @ 20 MHz/5 V run mode |
| Peripherals | Dual SCI/UART, I²C (400 kbps), SPI, two FTM modules (6+2 channels), TSI (16 electrodes), RTC, ACMP |
| Package | 20-pin TSSOP (JEDEC MO-153), θJA = 116 °C/W (single-layer board) |
Pinout & Package
20-pin TSSOP package (JEDEC MO-153, 4.4 mm × 6.5 mm × 1.2 mm body height), lead-free, RoHS-compliant, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 2.7–5.5 V digital supply; decoupling required within 10 mm of pin |
| VSS | Ground reference | Digital ground return; must be connected to low-impedance PCB plane |
| RESET_B | Active-low reset input | Asynchronous reset with internal pullup; minimum 1.5×tSelf_reset pulse width required |
| PTA0–PTA7 | General-purpose I/O | 8-bit port A; PTA2/PTA3 are true open-drain outputs; all support keyboard interrupt (KBI) |
| PTB0–PTB5 | General-purpose I/O | 6-bit port B; PTB4/PTB5 support ultra-high current sink (20 mA); configurable as ADC inputs |
| EXTAL/XTAL | External crystal oscillator terminals | Connect 32.768 kHz crystal (low-range) or 4–20 MHz crystal/resonator (high-range) with C1/C2 load caps |
| SCI0_TX/SCI0_RX | Serial communication interface | Full-duplex UART pins; support LIN physical layer extension and 13-bit break detection |
| IIC_SDA/IIC_SCL | I²C interface signals | Open-drain bidirectional data/clock; support multi-master, 10-bit addressing, broadcast mode |
Key Features
| Feature | Design Value |
|---|---|
| Flash with EEPROM coexistence | Simultaneous EEPROM program/erase while executing code from flash-enables real-time parameter updates without halting execution |
| Stop3 ultra-low-power mode | 4.6 µA typical IDD with 1 kHz LPO clock active; supports wake-up via TSI, ADC, SCI, or KBI-ideal for battery-backed automotive sleep states |
| Hardware CRC module | Programmable cyclic redundancy check engine accelerates firmware integrity verification and secure boot validation |
| Touch Sensing Interface (TSI) | Supports up to 16 electrodes with hardware scan trigger and dedicated wake-from-Stop3 capability-reduces MCU polling overhead in HMI applications |
| Flexible clock architecture | ICS with FLL enables precise 39.0625 kHz internal reference trimming (±1% over 0–70 °C) and dynamic bus frequency scaling |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring of throttle position, coolant temperature, and crankshaft angle in gasoline direct injection systems. IC Role / Device Role / Timing Role: Primary 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-10 µs response to critical sensor events; LVD with hysteresis prevents erratic behavior during cranking voltage dips. |
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC controls in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves and driving discrete loads via high-current GPIOs. Use Value: Dual SCI/UART with LIN extension enables native communication with door modules; PTB4/PTB5 20 mA sink pins directly drive relays without external drivers. |
| Motor Drive Subsystem | Automotive Instrument Cluster |
Use Scenario: Closed-loop speed and position control of HVAC blower motors and power seat actuators. IC Role / Device Role / Timing Role: Motion controller generating PWM waveforms via FTM modules and sampling current feedback via ADC. Use Value: Two FTM modules (6+2 channels) support complementary edge-aligned PWM for 3-phase inverter control; 10-bit ADC provides 2.5 µs sampling for current loop bandwidth >10 kHz. |
Use Scenario: Rendering analog gauges, warning indicators, and driver information display using stepper motors and LED drivers. IC Role / Device Role / Timing Role: Human-machine interface processor managing TSI-based soft-touch buttons and SPI-driven display buffers. Use Value: TSI supports 16-electrode capacitive sensing with hardware scan trigger-eliminates CPU polling; SPI master mode drives segmented LCD or dot-matrix displays at up to 10 Mbps. |
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 |
|---|---|---|---|
| MC9S08RN16W2MTJ | Same silicon die and pinout; legacy Freescale marking (pre-NXP rebranding); identical electrical specs and qualification. | No functional difference; used interchangeably in legacy BOMs and production releases prior to NXP acquisition. | Select when maintaining continuity with existing Freescale-designated documentation or legacy toolchain configurations. |
| S9S08RN8W2MTJ | Same package and peripherals but reduced flash (8 KB) and RAM (1 KB); otherwise identical clock, voltage, temp, and peripheral specs. | Applicable where firmware size <64 KB and runtime memory footprint <768 B; not suitable for complex CAN/LIN gateway stacks. | Choose for cost-sensitive body electronics nodes with minimal firmware requirements and no need for EEPROM-based calibration storage. |
Compared with S9S08RNA16W2MTJ, MC9S08RN16W2MTJ offers identical functionality under legacy branding, while S9S08RN8W2MTJ reduces memory capacity by 50%-making it viable only for simpler automotive nodes where flash headroom and EEPROM retention are non-critical.
Availability
S9S08RNA16W2MTJ is available at Aetrix Electronics and suitable for engine control units, body control modules, and motor drive subsystems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for S9S08RNA16W2MTJ 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 heritage in microcontrollers dating to Motorola and Freescale.
The S08 RN series was designed specifically for cost-optimized, high-reliability automotive body and powertrain applications demanding AEC-Q100 Grade 1 qualification, extended temperature operation, and robust on-chip system protection.
FAQ
What is the maximum bus frequency supported by the S9S08RNA16W2MTJ?
The S9S08RNA16W2MTJ 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 frequency is achieved using the internal clock source (ICS) with FLL enabled and properly trimmed, or via external crystal oscillator in high-range mode. The device maintains timing compliance and flash access integrity at this rate under worst-case conditions.
Does the S9S08RNA16W2MTJ support EEPROM emulation in flash memory?
No-the S9S08RNA16W2MTJ includes dedicated 256-byte EEPROM with built-in error-correcting code (ECC), separate from flash memory. It does not require or implement EEPROM emulation in flash. The EEPROM supports 2-byte erase sectors and allows concurrent program/erase operations while executing code from flash, providing deterministic wear leveling and guaranteed endurance of 100,000 cycles.
Which package type corresponds to the S9S08RNA16W2MTJ part number suffix "TJ"?
The "TJ" suffix in S9S08RNA16W2MTJ denotes a 20-pin TSSOP package (JEDEC MO-153), measuring 4.4 mm × 6.5 mm with 0.65 mm pitch. This package has a thermal resistance θJA of 116 °C/W on a single-layer board and is rated for moisture sensitivity level MSL3. Pin assignments match the official S9S08RN16 Series Data Sheet Rev 1 (02/2014), Table 8.2.
Can the S9S08RNA16W2MTJ operate in stop mode while maintaining RTC functionality?
Yes-the S9S08RNA16W2MTJ supports RTC operation in Stop3 mode using the 1 kHz low-power oscillator (LPO) as the clock source. The RTC continues counting with typical current adder of <1 µA, and the device retains full RTC register visibility and alarm interrupt capability. This enables accurate timekeeping in battery-backed automotive sleep states without waking the CPU.
What debug interface does the S9S08RNA16W2MTJ provide, and is JTAG supported?
The S9S08RNA16W2MTJ provides a single-wire background debug (BDM) interface-not JTAG. It supports in-circuit debugging with three hardware breakpoints, on-chip ICE module featuring two comparators and nine trigger modes, and forced reset entry into BDM mode via BKGD/MS pin. JTAG is not implemented; all debug and programming operations use the BDM protocol over a single signal line plus ground.
S9S08RNA16W2MTJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-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:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 16
- 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 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08RNA16W2MTJ FAQ
1.How can I place an order for S9S08RNA16W2MTJ through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08RNA16W2MTJ 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 S9S08RNA16W2MTJ reliable?
The price and inventory of S9S08RNA16W2MTJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08RNA16W2MTJ is usually 5 days.
3.What payment methods are accepted for S9S08RNA16W2MTJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08RNA16W2MTJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08RNA16W2MTJ?
S9S08RNA16W2MTJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08RNA16W2MTJ 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 S9S08RNA16W2MTJ?
For technical support, including S9S08RNA16W2MTJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08RNA16W2MTJ requirements.
6.How does Aetrix verify that S9S08RNA16W2MTJ is sourced from the original manufacturer or authorized distributors?
All S9S08RNA16W2MTJ 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 S9S08RNA16W2MTJ meets industry standards.
7.What is the process for return or replacement of S9S08RNA16W2MTJ?
All S9S08RNA16W2MTJ units undergo pre-shipment inspection (PSI). If there is an issue with S9S08RNA16W2MTJ, 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 S9S08RNA16W2MTJ part is unused and in its original packaging.
Return procedure for S9S08RNA16W2MTJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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