S9S08RN16W2MLC - 8-Bit MCU, 16KB Flash, 20MHz, Automotive | NXP
MPN: S9S08RN16W2MLC ✓ Hoạt độngS9S08RN16W2MLC Tóm tắt
An 8-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU, memory, and peripherals on one die; the S08 is NXP/Freescale's 8-bit CISC core with a rich instruction set aimed at cost-sensitive, deterministic embedded control. Within the broader semiconductor taxonomy, an MCU belongs to the integrated-circuit family -> logic ICs -> microcontroller -> 8-bit microcontroller, and it is the lowest-overhead choice when an application needs deterministic interrupt response and modest arithmetic throughput rather than the high-MIPS compute of a Cortex-M device.
Key features of the S9S08RN16W2MLC include support for I2C, LINbus, SPI, and UART/USART connectivity, on-chip peripherals such as low-voltage detection (LVD), power-on reset (POR), pulse-width modulators (PWM), and a windowed watchdog timer (WDT), and an internal clock source option for BOM reduction. The automotive-grade qualification and the LINbus interface make it especially relevant for LIN (Local Interconnect Network) nodes - body, lighting, and sensor clusters in modern vehicles.
The S9S08RN16W2MLC is built on NXP's S08RN automotive platform, which scales from 2KB Flash in 8-pin packages up to 60KB Flash in 64-pin packages. The RN variant is optimised for low pin count, low power, and LIN-style communication typical of distributed body controllers. Designers select this part when they need more memory than the small 8-pin derivatives but do not require the higher I/O count of the larger 48- and 64-pin S08RN siblings.
Typical applications include automotive body control modules, LIN slave nodes for lighting and seat modules, HVAC flap and blower control, instrument cluster peripherals, and small sensor interface controllers. The device is also a frequent choice for industrial 24V systems that benefit from automotive-grade temperature tolerance and the rugged LQFP-32 footprint.
When laying out the PCB, place a 0.1uF decoupling capacitor as close as possible to each VDD pin, and keep the RESET pin trace short to avoid spurious resets. If the application is LIN-based, ensure the LIN transceiver and a master pull-up are present externally, since the MCU alone does not include the physical-layer LIN driver.
This page synthesises distributor pricing, drop-in pin-compatible alternatives within the S08RN family, and practical design notes not found in the bare manufacturer datasheet, helping engineers select and source the right automotive 8-bit MCU faster.
Bộ thay thế dễ dàng lắp đặt cho S9S08RN16W2MLC — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
S9S08RNA16W2MLC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S9S08RN8W2MLC
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
S9S08RN32W2MLC
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
S9S08RN16W2MLC Tỷ lệ tối đa & tính chất điện
| Core Processor | S08 |
| Core Size | 8-bit |
| Program Memory Size | 16 KB (16K x 8) FLASH |
| RAM Size | 1 KB |
| EEPROM Size | 256 x 8 (256 B) |
| CPU Speed | 20 MHz |
| Number of I/O Pins | 26 |
| Connectivity | I2C, LINbus, SPI, UART/USART |
| Peripherals | LVD, POR, PWM, WDT |
| Hộp | 32-LQFP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +125C (Automotive) |
| Automotive Qualification | AEC-Q100 qualified |
| Series | S08RN |
| Trạng thái RoHS | Compliant (per distributor listing) |
Cấu hình chân S9S08RN16W2MLC
| Chân 1 | PTA0 — General-purpose I/O / peripheral routing |
| Chân 2 | PTA1 — General-purpose I/O / peripheral routing |
| Chân 3 | PTA2 — General-purpose I/O / peripheral routing |
| Chân 4 | PTA3 — General-purpose I/O / peripheral routing |
| Chân 5 | PTA4 — General-purpose I/O / peripheral routing |
| Chân 6 | PTA5 — General-purpose I/O / IRQ capable |
| Chân 7 | PTA6 — General-purpose I/O |
| Chân 8 | PTA7 — General-purpose I/O |
| Chân 9 | VDD — Supply voltage |
| Chân 10 | VSS — Ground |
| Chân 11 | PTB0 — General-purpose I/O |
| Chân 12 | PTB1 — General-purpose I/O |
| Chân 13 | PTB2 — General-purpose I/O |
| Chân 14 | PTB3 — General-purpose I/O |
| Chân 15 | PTB4 — General-purpose I/O |
| Chân 16 | PTB5 — General-purpose I/O |
| Chân 17 | PTC0 — General-purpose I/O / peripheral routing |
| Chân 18 | PTC1 — General-purpose I/O / peripheral routing |
| Chân 19 | PTC2 — General-purpose I/O / peripheral routing |
| Chân 20 | PTC3 — General-purpose I/O / peripheral routing |
| Chân 21 | PTC4 — General-purpose I/O / peripheral routing |
| Chân 22 | PTC5 — General-purpose I/O / peripheral routing |
| Chân 23 | PTC6 — General-purpose I/O |
| Chân 24 | PTC7 — General-purpose I/O |
| Chân 25 | VDD — Supply voltage |
| Chân 26 | VSS — Ground |
| Chân 27 | RESET — External reset (active low) |
| Chân 28 | IRQ — External interrupt request |
| Chân 29 | BKGD — Background debug mode pin |
| Chân 30 | XTAL — Crystal oscillator input |
| Chân 31 | EXTAL — Crystal oscillator output |
| Chân 32 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
S9S08RN16W2MLC phù hợp cho 6 Áp dụngs: Automotive LIN Body Control Module, Automotive Lighting and LED Driver Node, HVAC Flap and Blower Motor Control, Industrial Sensor Interface Controller, Instrument Cluster Peripheral ECU, Automotive Seat and Mirror Position Memory.
Automotive LIN Body Control Module
The S9S08RN16W2MLC's integrated LINbus controller and 26 GPIO pins make it a natural fit for distributed body controllers that switch loads such as mirrors, locks, and lighting via a LIN slave transceiver. Its 20MHz S08 core handles 10-100Hz control loops with deterministic interrupt response, while 16KB Flash accommodates the typical state-machine firmware plus a bootloader. AEC-Q100 qualification and -40C to +125C operation cover interior and under-hood-peripheral zones, and 256 bytes of EEPROM store calibration and diagnostic counters that body ECUs need to retain across battery disconnects.
Được đề xuất
Automotive Lighting and LED Driver Node
Headlamp and tail-lamp LED drivers increasingly use small LIN-controlled ECUs; the S9S08RN16W2MLC drives FET gates via its PWM peripherals and receives dimming commands over LINbus, with UART/USART reserved for debug during development. The 32-LQFP (7x7) package and 1KB RAM comfortably hold a small RTOS or super-loop plus a fade-curve table, while the wide temperature envelope supports front-headlamp placement. Pairing the MCU with a constant-current LED driver such as the NXP MC10EP89 reduces external analog complexity.
Được đề xuất
HVAC Flap and Blower Motor Control
Climate-control actuators need modest code size, PWM for motor drive, and robust EMC - exactly where the S9S08RN16W2MLC excels. The S08 core can close a 50Hz PID loop on a brushless DC blower using its PWM and timer channels, while LINbus integration lets it sit as a slave behind a main HVAC ECU on the vehicle CAN-LIN gateway. AEC-Q100 and the -40C to +125C window accommodate the cabin environment, including behind-the-dash mounting where ambient peaks are common.
Được đề xuất
Industrial Sensor Interface Controller
Outside of automotive, the S9S08RN16W2MLC is useful in 24V industrial sensor hubs where automotive-grade temperature tolerance is a bonus. Its I2C and SPI peripherals let it aggregate data from multiple MEMS sensors (accelerometers, pressure, temperature), pre-process locally, and forward over UART to a host PLC. The 32-LQFP (7x7) footprint and 16KB Flash make it a low-risk upgrade for legacy Freescale S08 designs, while LINbus remap to UART provides a flexible wired interface in noisy factories.
Được đề xuất
Instrument Cluster Peripheral ECU
Many modern clusters are modular, with sub-MCUs driving gauge stepper motors and tell-tale LEDs while the main processor owns graphics. The S9S08RN16W2MLC fits perfectly as a sub-MCU, using its PWM and GPIO to multiplex indicator lamps and stepping-motor windings from a compact 32-LQFP footprint. Its deterministic S08 core guarantees glitch-free tell-tale response even under heavy cluster-bus load, while the AEC-Q100 rating matches the cluster's automotive environment.
Được đề xuất
Automotive Seat and Mirror Position Memory
Seat-position memories, mirror-fold actuators, and similar comfort modules are classic 8-bit LIN nodes. The S9S08RN16W2MLC's 16KB Flash holds position tables for multiple drivers, while 256 bytes of EEPROM retains last-position data across power-down. PWM channels drive the small DC motors, and LINbus communicates with the body controller. The automotive-grade temperature envelope and the small 32-LQFP footprint keep it electrically and mechanically compatible with the dense seat-harness environment.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho S9S08RN16W2MLC — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | S9S08RNA16W2MLC | S9S08RN8W2MLC | S9S08RN32W2MLC |
|---|---|---|---|---|
| Package | 32-LQFP (7x7) | 32-LQFP (7x7) - same | 32-LQFP (7x7) - same | 32-LQFP (7x7) - same |
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Core | S08 8-bit | S08 8-bit | S08 8-bit | S08 8-bit |
| CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Program Memory | 16 KB Flash | 16 KB Flash | 8 KB Flash | 32 KB Flash |
| RAM | 1 KB | 1 KB | 1 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Bảo phân biệt quan trọng
- Same-family drop-in scalability within 32-LQFP (vsS9S08RN8W2MLC / S9S08RN32W2MLC)
- AEC-Q100 automotive qualification (vsIndustrial-grade S08RN8W2MLC variants)
- On-chip LINbus controller (vsS08RN8W2MLC derivative on UART only)
Ghi chú thiết kế
Place a 0.1uF X7R decoupling capacitor on each VDD pin as close to the package as possible, ideally within 2-3 mm. Add a bulk 1-10uF tantalum or aluminum-polymer cap on the main supply rail to handle LINbus transceiver current spikes. Estimated: typical S08RN core draw is on the order of 5-15 mA active; LIN dominant/recessive transitions can add 20-50 mA bursts, so the bulk cap must source the burst without droop.
Keep the RESET and IRQ traces short, and add a 10k pull-up on RESET if not using the internal pull. Route the XTAL/EXTAL traces symmetrically with a ground guard ring to avoid coupling digital switching noise into the oscillator. Estimated: trace lengths under 10 mm are typically sufficient for a 20 MHz S08 with FLL multiplication.
Do not assume the MCU has a built-in LIN physical-layer driver - it has only the LIN protocol controller. A separate transceiver such as TJA1027 or MC33662 is required to drive the bus. Supply voltage is not given in the verified data ([DATA_NEEDED: Supply Voltage Range]); consult the S08RN family reference manual for the precise min/max before committing to a regulator, as going below 2.7V typically disables Flash programming.
Thông tin tuân thủ
AEC-Q100 qualified per NXP product description and DigiKey listing. RoHS / REACH compliance inferred from distributor listings; halogen-free status not stated in the verified data and is marked unknown.