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NXP Semiconductors S9S08RN48W1CLF
- Part No.:
- S9S08RN48W1CLF
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S08RN48W1CLF.pdf
- Description:
- IC MCU 8BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:821
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Product details
Overview
S9S08RN48W1CLF from NXP Semiconductors (formerly Freescale) is an 8-bit S08 MCU with 48 KB flash, 4 KB RAM, and 256-byte EEPROM with ECC, operating at up to 20 MHz bus frequency across –40 °C to 125 °C. It integrates ADC (12-bit, 16-channel), three FTM modules, three SCI/UARTs, I²C, SPI, TSI, ACMP, RTC, and watchdog-targeting automotive body control modules requiring robust embedded timing and mixed-signal I/O.
For engineers reviewing the S9S08RN48W1CLF datasheet, S9S08RN48W1CLF pinout, S9S08RN48W1CLF application, or S9S08RN48W1CLF equivalent, this page delivers verified electrical specs, validated package mapping (48-pin LQFP), confirmed peripheral timing behavior, thermal resistance (θJA = 81 °C/W on single-layer board), and real-world substitution guidance for industrial and automotive MCU selection.
Technical Context
The S9S08RN48W1CLF 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 internal clock source (ICS) with FLL-based frequency multiplication, delivering ±2.0% DCO output deviation over –40 °C to 125 °C at 20 MHz.
Peripheral integration includes three FlexTimer Modules (FTM)-one 6-channel and two 2-channel-with input capture, PWM, and edge/center-aligned modes; a 12-bit ADC with 2.5 µs conversion time, hardware trigger, and stop-mode operation; and TSI supporting up to 16 electrodes with wake-from-Stop3 capability.
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-byte EEPROM with ECC and 2-byte erase sector |
| ADC | 12-bit resolution, 16-channel, 2.5 µs conversion time, internal bandgap reference, stop-mode operation |
| Timers | Three FTM modules (1×6-channel + 2×2-channel), 16-bit counter, input capture/output compare/PWM support |
| Communication | Three SCI/UART (LIN-capable), one I²C (400 kbps), two SPI (8-bit and 16-bit), all supporting master/slave and full-duplex modes |
| Operating Range | –40 °C to 125 °C ambient, 2.7–5.5 V supply, qualified for automotive body electronics |
| Power Modes | Run, Wait, and Stop3 (3.8 µA typical @ 5 V); peripheral clocks individually disableable via PCE register |
Pinout & Package
Package: 48-pin LQFP (LF suffix), 7 mm × 7 mm, 0.5 mm pitch, θJA = 81 °C/W (single-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD (digital/analog core), VSS (common return); VDDA must be within VDD ± 0.3 V |
| PTA0–PTA7 | General-purpose I/O / KBI0 / TSI | 8-bit keyboard interrupt module (KBI0) inputs; configurable as TSI electrodes; PTA2/PTA3 are true open-drain outputs |
| PTB0–PTB7 | General-purpose I/O / FTM / SCI / SPI | Support FTM channel outputs, SCI0/SCI1 TX/RX, SPI0 MOSI/MISO/SCK; PTB4/PTB5 provide 20 mA sink/source drive |
| PTC0–PTC7 | General-purpose I/O / ADC / ACMP / I²C | 16-channel ADC inputs (AD0–AD15), analog comparator inputs (ACMP0+/−), I²C SDA/SCL (PTC0/PTC1) |
| EXTAL / XTAL | External crystal oscillator inputs | Drive Pierce oscillator for XOSC; supports 32 kHz–20 MHz crystals/resonators; startup time ≤3 ms (high range, high gain) |
| RESET | Active-low reset input | Minimum pulse width 1.5 × tSelf_reset; internal pullup; accepts 5 V-tolerant logic when VDD < 5 V |
| BKGD | Single-wire background debug | Enables in-circuit debugging via BDM interface; supports three breakpoints and on-chip ICE with two comparators |
Key Features
| Feature | Design Value |
|---|---|
| Flash security | Read/program/erase protection enabled per block; prevents unauthorized access to firmware and calibration data |
| ECC-enabled EEPROM | 256-byte EEPROM with error-correcting code ensures reliable nonvolatile storage of critical configuration parameters across 100k+ cycles |
| Stop3 ultra-low-power mode | 3.8 µA typical current draw @ 5 V with 1 kHz LPO clock active-enables battery-backed RTC and wake-on-TSI/ACMP/SCI |
| Hardware CRC module | Programmable cyclic redundancy check engine accelerates firmware integrity verification and communication packet validation |
| TSI touch sensing | Capacitive touch interface supporting up to 16 electrodes with software/hardware scan triggers and built-in library compatibility |
Applications
| Automotive Body Control Unit | Industrial Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in 12 V vehicle systems. IC Role / Device Role / Timing Role: Primary MCU executing CAN/LIN gateway logic, analog sensor acquisition (temperature, humidity), and PWM-driven motor control. Use Value: Integrated 12-bit ADC, LIN-capable SCI, and 20 mA GPIO drive eliminate external signal conditioning and level-shifting components. |
Use Scenario: Wireless-capable environmental monitor deployed in factory automation with local display and relay control. IC Role / Device Role / Timing Role: Data acquisition hub interfacing thermistors, pressure transducers, and capacitive touch buttons while managing RS-485 communication. Use Value: TSI support for touch UI, stop3 mode enabling multi-year battery life, and hardware CRC ensuring OTA firmware update integrity. |
| Smart Appliance Control Board | Medical Diagnostic Handheld |
Use Scenario: Embedded controller for washing machine drum motor, water valve sequencing, and user interface feedback. IC Role / Device Role / Timing Role: Real-time sequencer coordinating FTM-driven triac firing, ADC-based current sensing, and LED/display driver timing. Use Value: Three independent FTM modules enable simultaneous PWM generation for motor phase control and LED dimming without CPU overhead. |
Use Scenario: Portable blood glucose meter requiring precise analog front-end, low-power operation, and tamper-resistant calibration storage. IC Role / Device Role / Timing Role: Mixed-signal processor acquiring electrochemical sensor signals, managing EEPROM-stored calibration curves, and driving segmented LCD. Use Value: On-chip 12-bit ADC with internal bandgap reference and ECC EEPROM ensure measurement repeatability and regulatory compliance for Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08RN32W1CLF | 32 KB flash, 2 KB RAM, identical peripheral set and pinout; lower memory density but same 48-pin LQFP footprint | Suitable for cost-sensitive designs with reduced firmware size and fewer data buffers | Select when application firmware fits within 32 KB and no additional RAM/ECC EEPROM is required |
| S9S08RN60W1CLF | 60 KB flash, 4 KB RAM, same architecture and peripherals; shares identical 48-pin LQFP package and pin assignment | Required for larger firmware images, complex state machines, or extended data logging buffers | Choose when future firmware expansion, OTA updates, or enhanced diagnostics demand >48 KB flash |
Compared with MC9S08RN32W1CLF and S9S08RN60W1CLF, the S9S08RN48W1CLF provides optimal balance of memory headroom and cost for mid-complexity automotive and industrial controllers-avoiding under-provisioning while eliminating premium for unused flash capacity.
Availability
S9S08RN48W1CLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance control boards, and portable medical diagnostics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S9S08RN48W1CLF 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 microcontroller innovation through its acquisition of Freescale.
The S9S08RN48W1CLF belongs to the S08RN family-designed specifically for cost-optimized, high-reliability automotive body electronics and industrial control where extended temperature operation, flash endurance, and integrated analog/mixed-signal peripherals are essential.
FAQ
What is the maximum bus frequency and operating voltage range for the S9S08RN48W1CLF?
The S9S08RN48W1CLF supports a maximum bus frequency of 20 MHz across its full operating voltage range of 2.7 V to 5.5 V, with guaranteed performance from –40 °C to 125 °C ambient temperature. This specification is validated per the official S9S08RN60 Series Data Sheet Rev. 1 (01/2014), which explicitly covers S9S08RN48 devices. The S9S08RN48W1CLF maintains consistent timing and electrical behavior with other members of the RN family under these conditions.
Does the S9S08RN48W1CLF support in-circuit debugging, and what interface is used?
Yes, the S9S08RN48W1CLF supports single-wire background debug (BDM) via the BKGD pin, enabling full in-circuit emulation with three hardware breakpoints and on-chip ICE functionality. The debug module includes two comparators and nine trigger modes, allowing precise program flow analysis during development. This capability is documented in the S9S08RN60 Series Data Sheet and applies identically to the S9S08RN48W1CLF as a member of the same product family.
What are the key low-power features of the S9S08RN48W1CLF?
The S9S08RN48W1CLF offers multiple low-power modes including Wait and Stop3, with Stop3 drawing just 3.8 µA typical at 5 V. In Stop3, only the 1 kHz LPO clock remains active-yet peripherals like TSI, ACMP, and SCI can generate wake events. Peripheral clocks are individually disableable via the PCE register, and the ADC/TSI/LVD modules each add defined current increments (44 µA, 111 µA, 130 µA respectively) when enabled in Stop3. These values are measured and specified in Table 4 of the S9S08RN60 Series Data Sheet.
How does the S9S08RN48W1CLF handle analog-to-digital conversion, and what is its resolution and speed?
The S9S08RN48W1CLF integrates a 12-bit successive-approximation ADC with 16 input channels, achieving a 2.5 µs conversion time. It supports hardware triggering, automatic compare functions, data buffering with watermark interrupts, and operation in Stop3 mode using the internal bandgap reference. These capabilities are fully specified in Section 6.3.1 of the S9S08RN60 Series Data Sheet, which applies to all RN family variants including the S9S08RN48W1CLF.
Is the S9S08RN48W1CLF pin-compatible with other devices in the S08RN family?
Yes-the S9S08RN48W1CLF uses the 48-pin LQFP package (LF suffix) and shares identical pin assignments with the S9S08RN32W1CLF and S9S08RN60W1CLF. All three devices have matching signal multiplexing, I/O drive strength, and peripheral mapping per pin, as confirmed in Section 8.2 ("Device pin assignment") of the S9S08RN60 Series Data Sheet. This enables direct hardware reuse across memory variants without PCB redesign.
S9S08RN48W1CLF 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08RN48W1CLF FAQ
1.How can I place an order for S9S08RN48W1CLF through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08RN48W1CLF 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 S9S08RN48W1CLF reliable?
The price and inventory of S9S08RN48W1CLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08RN48W1CLF is usually 5 days.
3.What payment methods are accepted for S9S08RN48W1CLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08RN48W1CLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08RN48W1CLF?
S9S08RN48W1CLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08RN48W1CLF 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 S9S08RN48W1CLF?
For technical support, including S9S08RN48W1CLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08RN48W1CLF requirements.
6.How does Aetrix verify that S9S08RN48W1CLF is sourced from the original manufacturer or authorized distributors?
All S9S08RN48W1CLF 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 S9S08RN48W1CLF meets industry standards.
7.What is the process for return or replacement of S9S08RN48W1CLF?
All S9S08RN48W1CLF units undergo pre-shipment inspection (PSI). If there is an issue with S9S08RN48W1CLF, 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 S9S08RN48W1CLF part is unused and in its original packaging.
Return procedure for S9S08RN48W1CLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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