AT42QT2120-MMHR vs AT42QT1040-MMHR Comparison
Detailed side-by-side comparison of AT42QT2120-MMHR by Microchip Technology and AT42QT1040-MMHR by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
AT42QT2120-MMHR - 12-Channel QTouchADC Touch Controller | Microchip
AT42QT2120-MMHR ✓ ActiveSpecification Comparison
| Parameter | AT42QT2120-MMHR | AT42QT1040-MMHR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Touch Sensors | Touch Sensors |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.85 | $0.68 |
| Product Type | Capacitive Touch Controller | — |
| Number of Touch Channels | 12 (configurable) | — |
| Touch Sensing Algorithm | QTouchADC (self-capacitance, patent pending) | — |
| Configurable Touch Patterns | Buttons, sliders, wheels | — |
| Supply Voltage (VDD) | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Communication Interface | I2C / SMBus-compatible | GPIO (no I2C/SPI required) |
| Drift Compensation | On-chip, slew-rate limited reference adjustment | — |
| Simultaneous Key Arbitration | Integrated (AKS-like) | — |
| Proximity Sensing | Yes, via self-capacitance | — |
| Operating Temperature Range | -40 C to +125 C (MM suffix: extended industrial) | -40 C to +85 C |
| Package | 20-pin VQFN (3x3 mm), exposed pad (MM package) | 20-pin VQFN (3x3 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| MSL (Moisture Sensitivity Level) | MSL3 / 260 C peak reflow (per Microchip MM package profile) | — |
| RoHS Status | Compliant | Compliant |
| Reel Orientation | R (suffix to mirror standard reel carrier sheet direction) | — |
| Number of Touch Keys | — | 1 to 4 (individually configurable) |
| Sensor Technology | — | QTouch charge-transfer (burst mode) |
| Supply Current | — | [DATA_NEEDED: quiescent current in uA] |
| Output Type | — | Parallel discrete outputs (1 per key) |
| Number of Outputs | — | 4 (one per active key) |
| Self-Calibration Time | — | ~100 ms after power-up |
| Recalibration | — | Automatic on stuck-key / drift detection |
| MSL Level | — | [DATA_NEEDED: MSL rating] |
| Lead-Free / Halogen-Free | — | Yes (per Microchip product page) |