ATMXT1386XES-CHPSET2 - 1386-Node maXTouch Touch IC | Microchip
MPN: ATMXT1386XES-CHPSET2 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ATMXT1386XES-CHPSET2 Overview
A capacitive touch controller is a specialized mixed-signal IC that scans a matrix of mutual-capacitance nodes on a touch sensor panel, converts capacitance changes into digital coordinates, and reports touch positions to a host processor over a digital interface. In the product taxonomy, this device belongs to Interface ICs > capacitive touch sensors, which sits within the broader families of human-interface devices, sensor interfaces, and mixed-signal integrated circuits.
Key characteristics of the ATMXT1386 family include the 1386-node sensing capacity, an on-chip 32-bit AVR processing core for autonomous touch acquisition, and maXTouch filtering that supports gloved operation, passive stylus, and water-rejection behavior typical of the platform. The XES-CHPSET2 ordering code denotes a chip-set (multi-chip) configuration rather than a single monolithic die, which system designers must account for in PCB partitioning.
Technically, the charge-transfer acquisition engine periodically drives and senses the electrode matrix, while the embedded AVR firmware applies noise filtering, baseline tracking, and touch classification. This architecture offloads all touch processing from the host, requiring only configuration data and touch reports over the communication interface.
Typical applications include large-format touchscreen displays for industrial human-machine interfaces (HMI), point-of-information kiosks, and other commercial touch systems that previously used this high-node-count controller.
A key design consideration: Microchip lists the ATMXT1066T2 as the recommended alternative touch controller for the ATMXT1386, since this multi-chip solution is obsolete and no longer recommended for new designs.
This page synthesizes distributor availability data, the manufacturer's recommended migration path, and drop-in alternative analysis not found on the Microchip product page alone.
Drop-in alternatives for ATMXT1386XES-CHPSET2 β 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 ATMXT1386XES-CHPSET2 (same form factor and footprint).
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATMXT1066T2
β Drop-Inπ Reference alternative (not in catalog)
ATMXT336S-CCUR
β Drop-Inβ In Stock
Contact for price
View Datasheet βATMXT1386XES-CHPSET2 Specifications
| Product Type | Capacitive Touch Screen Sensor IC (multi-chip set) |
| Series | maXTouch |
| Number of Sense Nodes | 1386 nodes |
| Solution Configuration | Multi-chip solution (4 chips) |
| Core Architecture | 32-bit AVR microcontroller with charge-transfer acquisition |
| Sensing Technology | Projected capacitive, charge transfer |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Part Status | Obsolete |
| Manufacturer Product Status | Not recommended for new designs; alternative is ATMXT1066T2 |
ATMXT1386XES-CHPSET2 standard Pin Configuration Guide
Pin configuration for ATMXT1386XES-CHPSET2 (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 ATMXT1386XES-CHPSET2.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMXT1386XES-CHPSET2 is suitable for 6 applications: Industrial HMI Touchscreens, Kiosk and Point-of-Information Displays, Commercial Touch Monitor Retrofits, Medical Equipment Control Panels, Interactive Digital Signage, Legacy Embedded System Repair and Sustainment.
Industrial HMI Touchscreens
Large-format industrial human-machine interface panels were the primary use case for the 1386-node ATMXT1386 multi-chip solution. The 1386-node capacity supports the dense mutual-capacitance electrode matrices required by wide or tall industrial displays, while the embedded 32-bit AVR core offloads all touch acquisition, baseline tracking, and noise filtering from the host PLC or embedded controller. In these deployments the maXTouch platform's filtering supports gloved-finger operation and electrical-noise immunity near motor drives and switching power supplies. Because the part is now obsolete, new industrial HMI designs should specify the ATMXT1066T2 and reuse the same electrode architecture where possible, validating noise performance against the original panel stack before release.
Recommended
Kiosk and Point-of-Information Displays
Public kiosks and point-of-information terminals use large projected-capacitive touch panels whose electrode count exceeds the capacity of small single-chip controllers, which is why the 4-chip 1386-node ATMXT1386 set was deployed. The charge-transfer acquisition engine scans the full matrix and reports classified touches over the digital interface, allowing the kiosk host application to remain simple. The maXTouch platform's water-rejection and passive-stylus behaviors suit semi-outdoor and high-traffic installations where moisture and non-ideal touch inputs are common. Migration projects should map the existing sensor layout onto the ATMXT1066T2's node budget, trimming unused electrodes if necessary, and re-run gloved-touch and rain-mode qualification on the new controller before fleet rollout.
Recommended
Commercial Touch Monitor Retrofits
Commercial touch monitors and overlay kits historically integrated the ATMXT1386 chip set to achieve high node counts on monitors above the capacity of entry-level maXTouch devices. The multi-chip arrangement distributed the acquisition load across four ICs, each handling a portion of the electrode matrix, which shortened per-frame scan time and preserved touch report rates on large panels. Retrofit and repair channels still demand this part because the touch overlay, firmware configuration, and monitor controller were qualified as a system. Service organizations should secure last-time-buy inventory now; where stock cannot be guaranteed, redesigning the monitor front-end around the ATMXT1066T2 preserves the product line with active-status sourcing.
Recommended
Medical Equipment Control Panels
Medical diagnostic and monitoring equipment control panels benefit from maXTouch signal processing, and larger patient-monitor or workstation displays were candidates for the 1386-node ATMXT1386. The autonomous 32-bit AVR acquisition path delivers deterministic touch latency without host intervention, important for alarm-acknowledge and control surfaces where responsiveness is safety-relevant. Gloved-operation support aligns with clinical workflow where staff wear nitrile gloves. Because medical devices carry long certification lifecycles, designs already qualified with this obsolete chip set should perform a formal change assessment: either last-time-buy the ATMXT1386XES-CHPSET2 stock still held by distributors, or requalify the HMI around the ATMXT1066T2 under the device's regulatory change-control process.
Recommended
Interactive Digital Signage
Interactive digital signage installations use oversized touch overlays whose electrode matrices demand the high node count that only multi-chip maXTouch solutions like the ATMXT1386 provided. The distributed 4-chip architecture scans large glass-to-glass or film sensor stacks while the platform's noise filtering rejects interference from LED backlight drivers and mains-borne noise in retail environments. The controller reports only classified touch events, so the signage player hardware needs no real-time touch processing. New signage projects should select a current maXTouch controller sized to the panel's actual electrode count; the ATMXT1066T2 covers many signage panel layouts, while the active ATMXT336S-CCUR suits mid-size overlays where node count permits.
Recommended
Legacy Embedded System Repair and Sustainment
Repair depots and sustainment engineers maintaining fielded systems built around the ATMXT1386XES-CHPSET2 form a distinct application for this obsolete part. The correct sustainment strategy is component-level replacement using verified-stock parts: distributors such as Full-Electronic reported roughly 4,500 units available, enabling controlled last-time-buys sized to the remaining field-service forecast. Every replacement should be accompanied by re-running the maXTouch configuration download to the chip set, since touch calibration and electrode mapping reside in configuration memory. Sustainment teams should simultaneously qualify the ATMXT1066T2 migration path in parallel so the product line is not stranded when broker stock is exhausted.
Recommended
Recommended Products Summary
Engineering reference data for ATMXT1386XES-CHPSET2 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMXT1066T2 | ATMXT336S-CCUR |
|---|---|---|---|
| Brand | Microchip Technology (originally Atmel/Micrel lineage) | Microchip Technology | Microchip Technology |
| Solution Configuration | Multi-chip solution (4 chips) | Single-chip | Single-chip |
| Product Status | Obsolete | Active (recommended alternative) | Active |
| Series | maXTouch | maXTouch | maXTouch |
| Category | Interface - Sensor, Capacitive Touch | Interface - Sensor, Capacitive Touch | Interface - Sensor, Capacitive Touch |
| Sensing Technology | Projected capacitive, charge transfer, 32-bit AVR based | Projected capacitive (maXTouch) | Projected capacitive / proximity (maXTouch) |
Key Differentiators
- Highest node count via multi-chip architecture (vs ATMXT1066T2)
- Distributed acquisition preserves scan speed on very large panels (vs ATMXT336S-CCUR)
- Sourcing risk is the dominant trade-off (vs ATMXT1066T2)
Design Notes
The ATMXT1386XES-CHPSET2 is an obsolete 4-chip multi-chip solution, not a single monolithic IC. Do not treat the ordering code as a single-package device when creating the bill of materials or land patterns - each of the four chips has its own footprint and placement. Confirm the package drawings for each chip from the full maXTouch ATMXT1386 family documentation before layout, since distributor summaries leave the supplier device package field blank for this part.
Because the ATMXT1386 distributes the electrode matrix across four acquisition chips, sensor electrode routing must be partitioned so each chip drives and senses its assigned nodes per the family configuration guide. Keep sense lines away from switching-noise sources such as LED backlight boost converters, and follow the maXTouch sensor stack guidance for ground hatching behind the electrode area. Configuration for node mapping is downloaded to the chip set, so version-control the configuration file alongside the PCB design data.
Plan migration before the last-time-buy, not after. Octopart lists this part as Obsolete and Microchip recommends the ATMXT1066T2 as the alternative touch controller. Since the replacement is a single-chip device versus a 4-chip set, budget engineering time for PCB respin, configuration conversion, and touch performance revalidation (gloved touch, water rejection, report rate) rather than expecting a footprint-compatible swap.
Compliance Information
ROHS3 Compliant per distributor listings (ics-embedded.com, Full-Electronic.com). Other compliance attributes not stated in provided data.
