MTCH105-I/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MTCH105-I/ST is a 5-channel capacitive touch controller with simple I/O output interface. It supports direct open-drain outputs for each touch input without requiring firmware or external MCU for basic touch detection. Available in a 14-pin TSSOP package for compact HMI designs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MTCH105-I/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7640(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5 independent capacitive touch sensor inputs with dedicated open-drain output per channel requiring no firmware
- Standalone operation with simple I/O interface enabling MCU-free touch button implementation in low-cost designs
- 14-pin TSSOP package with matte tin finish rated to 260°C peak reflow temperature for standard SMT assembly
- Self-calibrating touch sensitivity with noise immunity for reliable operation in industrial and consumer environments
Applications
The MTCH105-I/ST is ideal for appliance control panels, lighting switches, and consumer electronic interfaces where 5 independent touch buttons must be detected without an MCU-based firmware solution. Its simple I/O architecture allows direct LED or relay driving from each channel output, reducing BOM cost in dedicated touch-only panels. Industrial control bezels and white goods requiring durable sealed touch interfaces benefit from its capacitive sensing approach.
Specifications
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 7Weeks |
| YTEOL | 13 |
| JESD-609 Code | e3 |
| Peak Reflow Temperature (Cel) | 260 |
| Terminal Finish | Matte Tin (Sn) |
| 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 | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many capacitive touch channels does MTCH105-I/ST support and how are outputs structured?
The MTCH105-I/ST supports 5 independent capacitive touch input channels, each with a dedicated open-drain output that drives low when a touch is detected. This 1-to-1 channel-to-output mapping allows direct connection to indicator LEDs through 1 kΩ resistors or optocouplers without any MCU firmware for basic button panels.
Can MTCH105-I/ST operate without a microcontroller in a simple appliance button panel?
Yes, MTCH105-I/ST is designed for standalone MCU-free operation. Its 5 open-drain outputs can directly control up to 5 LEDs or small relays when the touch inputs are activated, making it suitable for washing machine button panels or oven control interfaces with 5 touch zones and indicator LEDs running from a 3.3 V or 5 V rail.
What are the soldering requirements for MTCH105-I/ST in automated SMT production lines?
The MTCH105-I/ST in 14-pin TSSOP package supports standard SMT reflow with a peak reflow temperature of 260°C held for up to 40 seconds. Its matte tin (Sn) terminal finish is compatible with SAC305 lead-free solder paste, meeting JEDEC J-STD-020 MSL requirements for automated pick-and-place assembly.
How does MTCH105-I/ST compare to firmware-based touch solutions for small button count designs?
For panels with exactly 5 touch buttons, MTCH105-I/ST eliminates the need for a general-purpose MCU running touch firmware, reducing system cost by removing a 32-pin MCU, crystal, decoupling network, and firmware development effort. The 14-pin TSSOP occupies roughly 5 mm x 4.4 mm and requires fewer than 10 external passive components for a complete 5-button touch interface.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
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
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 |
|---|---|---|
| 1+ | $1.0600 | $1.06 |
| 25+ | $0.9900 | $24.75 |
| 96+ | $0.8750 | $84.00 |
| 1000+ | $0.8400 | $840.00 |
| 5000+ | $0.8100 | $4050.00 |
| 5088+ | $0.7640 | $3887.23 |
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.”