AT42QT2120-XUAlternatives & Equivalent Parts
About AT42QT2120-XU
AT42QT2120-XU is a Integrated Circuit component manufactured by Microchip. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Need pricing on these alternatives?
Get one quote covering all 6 alternatives for AT42QT2120-XU — response within 24 hours.
Specification Comparison
| Parameter | AT42QT2120-XUSource | STM8S103K3T3C | STM8S103K3T6C | AT42QT2120-SU | AT42QT2640-AU | AT42QT2120-MMHR | AT42QT2640-AUR |
|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip | STMicroelectronics | STMicroelectronics | Microchip | Microchip | Microchip | Microchip |
| Package Type | Small Outline Packages | Quad Flat Packages | Quad Flat Packages | Small Outline Packages | Quad Flat Packages | Quad Flat No-Lead | Quad Flat Packages |
| Pin Count | 20 | 32 | 32 | 20 | 44 | 20 | 44 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 105.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 105.0°C |
| Price | $1.2700 | $1.3300 | $0.6110 | $1.1400 | $8.4300 | $1.3300 | $8.1000 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||||
| Pbfree Code | Yes | — | — | Yes | Yes | Yes | Yes |
| Manufacturer Package Code | TSSOP-20 | — | — | SOIC-20 | TQFP-44 | VQFN-20 | TQFP-44 |
| Factory Lead Time | 7 Weeks | 10 Weeks | 10 Weeks | 8 Weeks | 9 Weeks | 7 Weeks | 9 Weeks |
| YTEOL | 14 | 9 | 9 | 13 | 14 | 14 | 14 |
| Additional Feature | SEATED HGT CALCULATED | — | — | SEATED HGT CALCULATED | — | — | — |
| Body Breadth | 4.4 mm | — | — | 7.5 mm | 10 mm | 3 mm | 10 mm |
| Body Height | 1.05 mm | — | — | 2.3 mm | 1 mm | 0.78 mm | 1 mm |
| Body Length or Diameter | 6.5 mm | — | — | 12.8 mm | 10 mm | 3 mm | 10 mm |
| JESD-609 Code | e3 | e4 | e4 | e3 | e3 | e4 | e3 |
| Mounting Feature | SURFACE MOUNT | — | — | SURFACE MOUNT | SURFACE MOUNT | SURFACE MOUNT | SURFACE MOUNT |
| Output | DIGITAL | — | — | DIGITAL | OPEN-DRAIN | DIGITAL | OPEN-DRAIN |
| Output Range | 0.60-2.60V | — | — | 0.60-2.60V | 0.60-4.30V | 0.60-2.60V | 0.60-4.30V |
| Output Type | DIGITAL VOLTAGE | — | — | DIGITAL VOLTAGE | DIGITAL VOLTAGE | DIGITAL VOLTAGE | DIGITAL VOLTAGE |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 | QFP32,.35SQ,32 | QFP32,.35SQ,32 | SOP20,.4 | — | LCC20,.12SQ,18 | — |
| Package Shape/Style | RECTANGULAR | — | — | RECTANGULAR | SQUARE | SQUARE | SQUARE |
| Sensors/Transducers Type | CAPACITIVE TOUCH SENSOR | — | — | CAPACITIVE TOUCH SENSOR | CAPACITIVE TOUCH SENSOR | CAPACITIVE TOUCH SENSOR | CAPACITIVE TOUCH SENSOR |
| Supply Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.25 V | 5.5 V | 5.25 V |
| Supply Voltage-Min | 1.8 V | 2.95 V | 3.3 V | 1.8 V | 4.75 V | 1.8 V | 4.75 V |
| Surface Mount | YES | YES | YES | YES | YES | YES | YES |
| Terminal Finish | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) | Matte Tin (Sn) | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) |
| ## AT42QT2120-XU Alternates Showing results | Image | — | — | — | — | — | — |
| Has ADC | — | YES | YES | — | — | — | — |
| Bit Size | — | 8 | 8 | — | — | — | — |
| Clock Frequency-Max | — | 16 MHz | 16 MHz | — | — | — | — |
| DAC Channels | — | NO | NO | — | — | — | — |
| DMA Channels | — | NO | NO | — | — | — | — |
| JESD-30 Code | — | S-PQFP-G32 | S-PQFP-G32 | — | — | — | — |
| Number of I/O Lines | — | 28 | 28 | — | — | — | — |
| On Chip Program ROM Width | — | 8 | 8 | — | — | — | — |
| PWM Channels | — | YES | YES | — | — | — | — |
| Package Shape | — | SQUARE | SQUARE | — | — | — | — |
| Package Style | — | FLATPACK, LOW PROFILE | FLATPACK, LOW PROFILE | — | — | — | — |
| Peak Reflow Temperature (Cel) | — | 260 | 235 | — | — | — | — |
| Qualification Status | — | Not Qualified | Not Qualified | — | — | — | — |
| RAM (bytes) | — | 1024 | 1024 | — | — | — | — |
| ROM (words) | — | 8192 | 8192 | — | — | — | — |
| ROM Programmability | — | FLASH | FLASH | — | — | — | — |
| Speed | — | 16 MHz | 16 MHz | — | — | — | — |
| Supply Voltage-Nom | — | 3.3 V | 3.3 V | — | — | — | — |
| Technology | — | CMOS | CMOS | — | — | — | — |
| Temperature Grade | — | AUTOMOTIVE | INDUSTRIAL | — | — | — | — |
| Terminal Form | — | GULL WING | GULL WING | — | — | — | — |
| Terminal Pitch | — | 0.8 mm | 0.8 mm | — | — | — | — |
| Terminal Position | — | QUAD | QUAD | — | — | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | 30 | — | — | — | — |
| uPs/uCs/Peripheral ICs Type | — | MICROCONTROLLER | MICROCONTROLLER | — | — | — | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 6 alternatives for AT42QT2120-XU — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for AT42QT2120-XU is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating AT42QT2120-XU replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
Can't Find What You Need?
Our sourcing team can help find compatible alternatives for AT42QT2120-XU. Get expert recommendations within 24 hours.
FAQ
What is equivalent to AT42QT2120-XU?
Known equivalents for AT42QT2120-XU include STM8S103K3T3C, STM8S103K3T6C, AT42QT2120-SU. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT42QT2120-XU?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify AT42QT2120-XU alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.