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