STM809RWX6F STMicroelectronics Integrated Circuit (SOT23 (3-Pin)) In Stock
STM809RWX6F is a single-channel microprocessor voltage supervisor and reset IC with a fixed reset threshold, providing reliable power-on reset and supply monitoring in a compact SOT-23 3-pin package. It features a fixed detection threshold with no external components required, simplifying system reset design. Available from stock with worldwide shipping at competitive pricing.
- Manufacturer
- STMicroelectronics
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STM809RWX6F Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1405(MOQ 250)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed-threshold voltage supervisor eliminates external resistor dividers, reducing BOM cost and PCB space for microprocessor reset circuits
- Single-channel single-function architecture in a 3-pin SOT-23 package provides the most compact reset solution for microcontrollers and processors
- RoHS-compliant lead-free construction with JESD-609 e4 designation meets global environmental regulations for industrial and consumer applications
- Reliable power-on reset generation ensures microprocessors and FPGAs start in a known state after supply ramp-up or brownout events
Applications
The STM809RWX6F is used as a power-on reset and brownout detection circuit for microcontrollers, FPGAs, and DSPs in embedded systems where reliable processor initialization after power cycling or supply undervoltage is essential. It is commonly deployed in industrial control equipment, consumer appliances, and automotive electronics to ensure the processor remains in reset until the supply voltage reaches a safe operating level. The compact SOT-23 package makes it ideal for space-constrained designs in handheld devices, IoT nodes, and smart sensor modules.
Specifications
| Factory Lead Time | 24Weeks |
| YTEOL | 7 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.015mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.2V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.63V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the STM809RWX6F and what does it do?
The STM809RWX6F is a single-channel microprocessor voltage supervisor and reset IC from STMicroelectronics. It monitors the power supply voltage and holds the system reset signal active during power-up and whenever the supply drops below a fixed threshold, ensuring the microprocessor starts and remains in a known reset state during supply anomalies.
Does the STM809RWX6F require external components for operation?
No, the STM809RWX6F has a fixed, internally set reset threshold voltage requiring no external resistors or capacitors for basic operation. This simplifies PCB design, reduces component count, and improves reliability by eliminating tolerance stack-up from external resistor dividers that could affect the reset threshold accuracy.
What package does the STM809RWX6F use?
The STM809RWX6F is housed in a 3-pin SOT-23 surface-mount package (JESD-30 code R-PDSO-G3, equivalent to TO-236). The SOT-23 is one of the smallest industry-standard transistor outline packages, providing an extremely compact footprint for reset supervisors in space-constrained embedded system designs.
Is the STM809RWX6F RoHS compliant and lead-free?
Yes, the STM809RWX6F is fully RoHS compliant with a JESD-609 e4 designation, confirming lead-free manufacturing that meets current environmental regulations. The package body is made of plastic/epoxy and the device is suitable for use in consumer, industrial, and commercial electronics requiring environmental compliance.
What supply voltage does the STM809RWX6F monitor and what are typical use cases?
The STM809RWX6F monitors the system supply voltage against a fixed internal threshold to generate a reset pulse. It is commonly used in 3.3V and 5V microcontroller systems, FPGAs, and DSP boards where guaranteed power-on reset and brownout detection are required without the complexity of a dedicated supervisory circuit with adjustable thresholds.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.2321 | $58.02 |
| 500+ | $0.2050 | $102.50 |
| 1000+ | $0.1441 | $144.10 |
| 3000+ | $0.1430 | $429.00 |
| 6000+ | $0.1405 | $843.00 |
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