STM818LM6E STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics STM818LM6E is a single-channel processor supervisor and voltage reset IC operating from 1 V to 5.5 V with active-low, push-pull reset output and integrated watchdog timer in an 8-pin SOIC package. It monitors supply rails and asserts reset during undervoltage events to prevent microcontroller lockup. Suitable for industrial controllers, automotive sub-systems, and embedded boards requiring reliable power supervision.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- STM818LM6E Datasheet PDF
- Category
- Integrated Circuit
- 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 STM818LM6E?
- Single-channel voltage supervisor operating from 1 V to 5.5 V supply range
- Active-low push-pull reset output for direct MCU interface
- Integrated watchdog timer for autonomous system recovery
- Battery backup switchover support for memory retention during power loss
- Fixed threshold with no external programming components required
- 8-pin SOIC package for straightforward PCB integration
What is STM818LM6E used for?
The STM818LM6E is used in embedded processor boards, industrial controllers, and consumer electronics where reliable microcontroller reset and watchdog supervision is required across a 1 V to 5.5 V supply range. Its integrated battery backup switchover and watchdog timer make it particularly valuable in data-critical equipment such as PLCs, point-of-sale terminals, and communication infrastructure nodes.
What are the specifications of STM818LM6E?
| YTEOL | 0 |
| Additional Feature | BAT BUP SW:Y;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:Y;WWD:N |
| 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 |
| 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 |
Where can I find the STM818LM6E datasheet?
STM818LM6E Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM818LM6E?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range does the STM818LM6E support for reset supervision?
The STM818LM6E monitors supply rails across a 1 V to 5.5 V input range, covering 1.8 V, 3.3 V, and 5 V logic systems commonly used in modern embedded designs. Its single-channel architecture keeps the BOM minimal when only one supply rail requires supervision.
How does the integrated watchdog timer in STM818LM6E protect against software lockups?
The STM818LM6E includes a hardware watchdog timer that forces a reset output pulse if the host processor fails to toggle the watchdog input within the programmed timeout window. This automatic recovery mechanism prevents permanent hangs in unattended systems such as industrial PLCs and remote telemetry nodes operating 24/7.
Does STM818LM6E support battery backup switchover for memory retention during main power loss?
Yes, the STM818LM6E includes a battery backup switch function that seamlessly transfers the system to a backup battery supply when the main rail drops below the supervision threshold. This protects SRAM, RTC, or EEPROM contents during outages without requiring an external ideal-diode circuit, saving 1 or 2 components per board.
Which package does STM818LM6E use and how does its YTEOL rating affect sourcing decisions?
The STM818LM6E is available in an 8-pin SOIC package with a 0.25-inch pitch, which is compatible with standard wave-solder and reflow assembly. However, its YTEOL rating of 0 years indicates the part is at or near end-of-life, so procurement teams should qualify an alternative supervisor or build last-time-buy inventory before manufacturing ends.
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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.
In Stock · 24h Response · Worldwide Shipping
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