MCP1316T-32LE/OT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
The MCP1316T-32LE/OT is a microprocessor supervisory circuit with an active-low reset output, manual reset input, and 1600 ms watchdog timer window. It monitors a 3.2 V threshold and issues a 200 ms reset delay pulse to ensure clean MCU restarts. Offered in a 5-pin SOT-23 package with RoHS-compliant lead-free construction.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP1316T-32LE/OT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4300(MOQ 25)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.2 V trip threshold with 200 ms reset delay for reliable microcontroller power-on sequencing
- 1600 ms watchdog timer window preventing firmware lockup in embedded systems
- Active-low open-drain reset output compatible with 1.8 V to 5 V MCU logic levels
Applications
The MCP1316T-32LE/OT is ideal for embedded systems requiring reliable power-on reset and watchdog supervision, such as industrial PLCs, home automation controllers, and portable medical devices. Its 3.2 V monitored threshold ensures the MCU is held in reset until the supply stabilizes after power-on or brownout events. Battery-powered IoT nodes benefit from its combined manual reset and 1600 ms watchdog window to recover from firmware hangs without human intervention.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOT-23-5 |
| Factory Lead Time | 6Weeks |
| YTEOL | 18 |
| Additional Feature | MNL RST:Y;PW FL IO:N;PRG RST DLY:N;WD:Y;WDO:N;WWD:N |
| Adjustable Threshold | YES |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 0.01mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +3.2V |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What watchdog timeout does MCP1316T-32LE/OT provide, and how does it protect against firmware lockups?
MCP1316T-32LE/OT features a 1600 ms watchdog timer window. If the firmware fails to toggle the WDI pin within 1600 ms, the device asserts the active-low reset output for 200 ms, forcing the MCU to restart and recover from any software hang or infinite loop condition in embedded control applications.
At what supply voltage does MCP1316T-32LE/OT assert a reset in brownout detection scenarios?
MCP1316T-32LE/OT asserts reset when the monitored supply drops below the 3.2 V trip threshold. The reset remains asserted for 200 ms after the voltage recovers above 3.2 V, ensuring the MCU does not resume execution until the supply has fully stabilized, protecting data integrity and peripheral initialization sequences.
How does the 5-pin SOT-23 package of MCP1316T-32LE/OT fit into space-constrained embedded designs?
The SOT-23-5 package measures approximately 2.9 mm x 1.6 mm with 0.95 mm pin pitch, occupying under 5 mm² including decoupling capacitors. This compact footprint allows placement immediately adjacent to the MCU's VDD pin on dense IoT or wearable PCBs, minimizing reset glitch susceptibility due to short supply monitoring traces.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $0.4900 | $12.25 |
| 100+ | $0.4500 | $45.00 |
| 1000+ | $0.4300 | $430.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”