ATMXT1386E-Z2UR - maXTouch 1386-Node Touch Controller | Microchip
MPN: ATMXT1386E-Z2UR ✗ End of Life| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ATMXT1386E-Z2UR Overview
A capacitive touch controller is an interface IC that measures changes in capacitance across a touch sensor grid, applies touch-detection and noise-immunity algorithms, and reports touch coordinates to a host MCU or application processor. Within the semiconductor hierarchy it sits under touch screen controllers, a subcategory of sensor interface ICs in the maXTouch family spanning small single-chip solutions up to large multi-chip nodes for large-format touch panels.
Key differentiating features include the very high 1386-node sensor channel count, support for up to 16 concurrent touch points, self- and mutual-capacitance charge-transfer acquisition, and dual host communication options (I2C-compatible or USB). The multi-chip architecture scales acquisition bandwidth for large touch panels used in industrial HMI and commercial display designs.
Technically, the ATMXT1386E integrates four chips operating as one synchronized controller, with the 32-bit AVR execution core running Microchip's maXTouch firmware for touch detection, palm rejection, and noise filtering. Configuration is typically loaded into EEPROM/flash by the host at power-up, allowing tuning of sensitivity and gesture behavior without firmware changes.
Typical applications include large-format industrial touch monitors, commercial kiosks and point-of-information terminals, and multi-touch human-machine interfaces where many sensor nodes and reliable multi-touch detection are required.
A key design consideration is that Microchip has flagged this product for end-of-life: the manufacturer-recommended alternative touch controller is the ATMXT1066T2, so new designs should target that device while the ATMXT1386E family remains available for last-time-buy and service inventory.
This page synthesizes distributor sourcing, the manufacturer-recommended successor, and practical design guidance not found in the standard datasheet listing.
Drop-in alternatives for ATMXT1386E-Z2UR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATMXT1386E-Z2UR (same form factor and footprint).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMXT1386E-Z2UIR
✅ Drop-In✓ In Stock
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View Datasheet →ATMXT1386-Z2UR
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View Datasheet →ATMXT1386-Z2U
✅ Drop-In📋 Reference alternative (not in catalog)
ATMXT1386XES-Z2U
✅ Drop-In📋 Reference alternative (not in catalog)
ATMXT1716E-Z2U
✅ Drop-In📋 Reference alternative (not in catalog)
ATMXT1386E-Z2UR Specifications
| Product Family | maXTouch |
| Function | Capacitive touch screen controller |
| Number of Sensor Nodes | 1386 |
| Architecture | Multi-chip solution (4 chips) |
| Core | 32-bit AVR |
| Acquisition Technology | Charge transfer |
| Maximum Touch Points | 16 |
| Host Interface | I2C-compatible or USB (one per design) |
| Manufacturer | Microchip Technology |
| Category | Interface - Sensor, Capacitive Touch |
ATMXT1386E-Z2UR standard Pin Configuration Guide
Pin configuration for ATMXT1386E-Z2UR (standard package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for ATMXT1386E-Z2UR.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMXT1386E-Z2UR is suitable for 6 applications: Industrial HMI Touch Panels, Commercial Kiosks and Interactive Terminals, Multi-Touch Display Modules, Medical Equipment Interfaces, Gaming and Entertainment Machines, Embedded Touch PCs and Panel PCs.
Industrial HMI Touch Panels
The ATMXT1386E-Z2UR fits industrial human-machine interface panels because its 1386 sensor nodes and 16-touch support cover the large sensor grids typical of 10-inch to 27-inch HMI displays. The four-chip maXTouch architecture provides the acquisition bandwidth needed to scan dense electrode arrays without sacrificing response time, while the charge-transfer method maintains reliable touch detection through thick cover glass and glove operation when properly tuned. Used between the touch sensor flex tail and the host controller via the I2C-compatible interface, it reports filtered touch data so the host MCU runs no detection algorithms of its own. Its EOL status means industrial equipment makers should complete last-time-buy planning or qualify the ATMXT1066T2 successor.
Recommended
Commercial Kiosks and Interactive Terminals
Retail and information kiosks require large touch surfaces with true multi-touch and robust noise immunity from power supplies and backlight inverters, which is exactly the use case the ATMXT1386E-Z2UR was designed for. Its 1386 nodes accommodate wide-format projected-capacitive sensors, and up to 16 concurrent touches enable multi-user interaction maps. The maXTouch firmware implements palm rejection and水性 noise filtering, keeping interaction reliable in electrically noisy retail environments. The USB host interface option simplifies integration with standard x86 or ARM kiosk compute modules, avoiding custom I2C driver development. Since Microchip recommends the ATMXT1066T2 as the alternative, new kiosk platforms should start on the successor to secure lifecycle support.
Recommended
Multi-Touch Display Modules
Display module OEMs integrating projected-capacitive touch into monitors and signage panels use the ATMXT1386E-Z2UR where sensor channel counts exceed the reach of single-chip maXTouch parts. The four-chip synchronized solution scales the mutual-capacitance scan across large electrode matrices while the 32-bit AVR core runs unified detection firmware, presenting one logical touch device to the host over I2C or USB. Fast response across all 16 touch points prevents ghosting during multi-finger gestures on large glass. Design trade-offs include four-chip BOM cost and the need for Microchip configuration tooling to tune the panel. For current production, pair the panel with the ATMXT1066T2 per manufacturer guidance.
Recommended
Medical Equipment Interfaces
Medical cart displays, diagnostic station screens, and bedside monitoring panels benefit from the ATMXT1386E-Z2UR's reliable gloved-hand detection and palm rejection, which support hygienic glove use in clinical settings. Its noise-filtered charge-transfer acquisition tolerates the switching noise of medical displays and nearby power electronics, while the I2C-compatible interface integrates cleanly with isolated host designs common in patient-adjacent equipment. The 16-touch capability enables gesture-based navigation on large UI surfaces. Because medical qualification cycles are long, teams with the ATMXT1386E in a validated design should secure last-time-buy stock or file a change assessment for the ATMXT1066T2 migration well before existing inventory is exhausted.
Recommended
Gaming and Entertainment Machines
Multi-touch gaming tables, arcade cabinets, and entertainment terminals demand large active areas with many simultaneous touches, matching the ATMXT1386E-Z2UR's 1386-node, 16-touch specification. The multi-chip architecture scans wide-format sensors fast enough for latency-sensitive gameplay, and maXTouch firmware's noise immunity handles coin mechanisms, lighting drivers, and switching supplies typical of these machines. USB connectivity lets game logic run on standard PC-class hardware without custom touch drivers, shortening platform integration time. New gaming platforms should adopt the ATMXT1066T2 recommended by Microchip, reusing touch-tuning methodology while gaining active lifecycle support, and reserve ATMXT1386E purchases for service and legacy board replacement.
Recommended
Embedded Touch PCs and Panel PCs
Fanless panel PCs and embedded touch computers integrate the ATMXT1386E-Z2UR as the front-end touch digitizer controller, bridging large projected-capacitive sensors to the host platform via USB while the host OS uses standard HID touch class drivers. Its 1386 nodes support the sensor grids of 15-inch to 21-inch panels, and detection of up to 16 touches supports Windows and Linux multi-touch gestures. Configuration data is loaded by the host at boot, letting OEMs tune sensitivity per panel variant without firmware rebuilds. Because the device is EOL-flagged with the ATMXT1066T2 recommended as replacement, embedded PC vendors should requalify touch firmware on the successor controller for their next hardware revision.
Recommended
Recommended Products Summary
Engineering reference data for ATMXT1386E-Z2UR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMXT1386E-Z2UIR | ATMXT1386-Z2UR | ATMXT1716E-Z2U | ATMXT1066T2 |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Sensor Nodes | 1386 | 1386 | 1386 | 1716 | 1066 |
| Architecture | Multi-chip (4 chips) | Multi-chip (4 chips) | Multi-chip (4 chips) | Multi-chip solution | Current-generation solution |
| Max Touch Points | 16 | 16 | 16 | Up to 16 | Up to 16 |
| Host Interface | I2C-compatible or USB (one per design) | I2C-compatible or USB | I2C-compatible or USB | I2C-compatible or USB | I2C-compatible (verify datasheet) |
| Lifecycle Status | EOL / not recommended for new designs | EOL family | EOL family | EOL family | Recommended successor |
| Core Technology | Charge transfer + 32-bit AVR | Charge transfer + 32-bit AVR | Charge transfer + 32-bit AVR | Charge transfer + 32-bit AVR | maXTouch current generation |
Key Differentiators
- Highest node count of its maXTouch generation (vs ATMXT1066T2)
- Dual host interface options (vs ATMXT1386-Z2UR)
- Higher node coverage than mid-family parts (vs ATMXT1716E-Z2U)
Design Notes
The ATMXT1386E supports both I2C-compatible and USB host interfaces, but per the datasheet only one interface may be used in any one design - do not wire both simultaneously. Unused pins of the inactive interface must be terminated as prescribed in the datasheet interface table (Table 2-1 in the mXT1386E 2v9 BX document). Leaving inactive-interface pins floating can cause erratic touch reporting or firmware lockup at boot.
This is a four-chip multi-chip solution, so the PCB must be laid out exactly to the manufacturer's multi-die module footprint with matched trace lengths on the inter-die synchronization buses. Do not attempt to substitute a single-chip footprint. Additionally, Microchip has recommended the ATMXT1066T2 as the successor, so any new PCB should target that device instead and reserve ATMXT1386E usage for existing-board maintenance.
As with all maXTouch controllers, host configuration data (touch thresholds, sensor map, noise settings) is written by the host at power-up. Route the I2C-compatible bus as short as possible, keep it away from the touch sensor drive lines and display backlight switching circuits, and use the recommended pull-up values from the datasheet. Poor bus hygiene manifests as intermittent touch dropouts that are difficult to distinguish from sensor-level noise problems.
Compliance Information
Verified web data does not contain explicit environmental compliance statements for ATMXT1386E-Z2UR. Request material declaration certificates from Microchip or distributor when procuring this legacy part.
