STM817LM6F STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STM817LM6F is a single-channel 5 V voltage supervisor with battery switchover from STMicroelectronics, featuring a fixed 4.65 V reset threshold. Monitors supply integrity and seamlessly switches to a backup battery when main power fails. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- STM817LM6F Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9378(MOQ 250)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STM817LM6F?
- Fixed 4.65 V reset threshold monitors 5 V rails with precision, asserting RESET to prevent microcontroller lockup during brownouts
- Integrated battery switchover circuit automatically switches load to backup battery when VCC drops, maintaining system state without CPU intervention
- 8-pin SOIC (R-PDSO-G8) package and single-channel architecture simplify BOM and layout for cost-sensitive 5 V system designs
What is STM817LM6F used for?
The STM817LM6F is used in industrial control systems, embedded computers, and communication equipment that require uninterrupted operation during power interruptions. It protects microcontroller reset lines on 5 V systems by asserting a clean reset signal when supply voltage drops below 4.65 V. The battery switchover feature preserves SRAM contents and RTC operation in PLCs, smart meters, and data-logging devices during brief power outages.
What are the specifications of STM817LM6F?
| Factory Lead Time | 24Weeks |
| YTEOL | 7 |
| Additional Feature | RESET THRESHOLD VOLTGE IS 4.65V |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.06mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.65V |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline Packages |
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 | Morocco |
Where can I find the STM817LM6F datasheet?
STM817LM6F Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM817LM6F?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what supply voltage does the STM817LM6F assert its RESET output to protect a microcontroller?
The STM817LM6F asserts its active-low RESET signal when the monitored 5 V supply falls below the fixed 4.65 V reset threshold. This gives a 350 mV margin below nominal 5 V to catch brownouts before the microcontroller enters an undefined state, providing reliable protection for 5 V logic systems including 8-bit and 16-bit MCU designs.
How does the battery switchover in STM817LM6F keep an embedded system running during a 5 V power interruption?
When the 5 V main supply drops below the switchover threshold, the STM817LM6F automatically connects the backup battery (typically 3 V lithium coin cell) to the Vout rail within microseconds, supplying current to SRAM, RTC, or low-power retain circuits. This seamless handoff requires no external logic and keeps memory contents intact for interruptions lasting seconds to hours.
Is the STM817LM6F suitable for industrial temperature environments, and what package does it ship in?
The STM817LM6F is rated for industrial temperature operation and is housed in an 8-pin SOIC (R-PDSO-G8) small-outline package with approximately 4.9 mm × 3.9 mm body dimensions. The JESD-609 e4 moisture sensitivity code indicates MSL 3 compatibility, making it suitable for standard SMT reflow processes used in industrial and commercial electronic assembly.
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Why Buy from FindMyChip
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+ | $1.0770 | $269.25 |
| 500+ | $1.0370 | $518.49 |
| 1000+ | $1.0360 | $1035.96 |
| 2500+ | $0.9692 | $2423.08 |
| 5000+ | $0.9483 | $4741.30 |
| 7500+ | $0.9378 | $7033.20 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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