ATMXT3432S-M-CCU - maXTouch Touchscreen Controller | Microchip
料号： ATMXT3432S-M-CCU ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ATMXT3432S-M-CCU 概述
A capacitive touchscreen controller is an interface IC that measures changes in capacitance across a touch sensor grid, converts those measurements into touch coordinates, and delivers them to a host processor over a standard communication bus. Within the system hierarchy, the maXTouch controller sits between the passive touch sensor (ITO film or similar) and the host MCU or application processor, functioning as a specialized mixed-signal sensor interface IC in the touch subsystem of interactive displays.
Key characteristics include the maXTouch 3432-node touchscreen controller architecture, 32-bit processing of touch data, and support for shieldless design implementations that reduce stack-up cost and thickness. The mXT3432S family enables up to 10 concurrent touches in real time with touch size reporting, and communicates via I2C or USB interfaces according to Microchip product documentation for the family.
The maXTouch architecture integrates a dedicated touch acquisition engine with embedded flash and configurable object tables, allowing host systems to tune sensitivity, gesture, and filtering parameters through firmware objects rather than external components. This reduces the bill of materials and enables self-capacitance and mutual-capacitance scanning strategies suited to larger displays where sensor parasitic capacitance is significant.
Typical applications include industrial HMI touch panels up to 17.3 inches, interactive kiosks and point-of-information terminals, and embedded displays in appliances, test equipment, and commercial control interfaces where robust multi-touch performance and ESD resilience matter.
When designing with this device, verify the package outline, supply voltage, and interface configuration directly against the manufacturer datasheet before footprint sign-off, and budget for the tuning workflow using Microchip maXTouch development tooling during panel bring-up.
This page synthesizes distributor stock listings, family cross-references, and design guidance for the ATMXT3432S-M-CCU that is not consolidated on the manufacturer product page alone.
直接替换替代料： ATMXT3432S-M-CCU ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATMXT3432S-M-CCU （相同外形与封装尺寸） ——差异在于 Communication Interface, Concurrent Touches, Product Type, Touch Technology.
快速对比工具——选择替代料号进行并排对比：
ATMXT3432S-M-U
✅ 直接替换📋 参考替代料（不在目录中）
ATMXT3432S-M-CU
✅ 直接替换📋 参考替代料（不在目录中）
ATMXT3432S-M-Z2UR
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →ATMXT3432S-S-CU
✅ 直接替换✓ 有现货
$4.75 / 个
查看数据手册 →ATMXT3432S-M-CCU023
✅ 直接替换📋 参考替代料（不在目录中）
ATMXT3432S-M-CCU 最大额定值与电气特性
| Product Type | Capacitive Touchscreen Controller IC |
| Series | maXTouch mXT3432S |
| Touch Nodes | 3432 |
| Max Touchscreen Size | 17.3 inch |
| Concurrent Touches | Up to 10 (per family documentation) |
| Communication Interface | I2C / USB (family-level) |
| Processor Core | 32-bit touch processing |
| Design Support | Shieldless designs supported |
| Packaging | Tray |
| Package Code | CCU |
| 安装类型 | Surface Mount |
| Recommended Alternative Controller | ATMXT2952TD (per Microchip product page) |
ATMXT3432S-M-CCU ccu 引脚配置指南
ATMXT3432S-M-CCU（ccu 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： ATMXT3432S-M-CCU.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATMXT3432S-M-CCU 适用于 6 应用s: Industrial HMI Touch Panels, Interactive Kiosks and Information Terminals, Smart Appliance Control Displays, Medical Device User Interfaces, Test and Measurement Instrument Panels, Point-of-Sale and Retail Terminals.
Industrial HMI Touch Panels
Industrial human-machine interfaces commonly use 10.1-inch to 17.3-inch projected-capacitive panels, exactly the size range the mXT3432S family is optimized for. The ATMXT3432S-M-CCU's 3432-node capacity handles dense electrode matrices typical of larger panels, while 10-touch concurrent reporting with touch size data enables glove-aware and gesture-heavy operator interactions. Shieldless design support cuts sensor stack cost in sealed industrial enclosures. Place the controller adjacent to the sensor flex tail on a short I2C run to the host MCU, and allocate one tuning cycle with maXTouch tooling to compensate for metal-bezel display noise before factory release.
推荐
Interactive Kiosks and Information Terminals
Retail and wayfinding kiosks demand responsive multi-touch at 15-inch to 17.3-inch screen sizes with long duty cycles. The ATMXT3432S-M-CCU's real-time 10-touch reporting and touch size reporting support multi-user and gesture interactions, while maXTouch acquisition filtering maintains accuracy over reflective, noise-prone commercial displays. USB interface mode allows direct attachment to a kiosk host PC without an intermediate MCU, simplifying the electrical design. Specify a conformal-coated PCB and confirm operating temperature in the datasheet, since kiosk enclosures can exceed 60 C in sunlight-exposed installations.
推荐
Smart Appliance Control Displays
Premium white goods and cooking appliances increasingly use 4-inch to 10-inch capacitive touch panels driven by controllers in the mXT3432S class. The ATMXT3432S-M-CCU operates with shieldless sensor stackups that meet the aggressive cost targets of appliance BOMs, and its touch-size reporting allows water-tolerant designs that reject false touches from splashes. The 3432-node capacity leaves headroom for slider and wheel electrode patterns common on cooktop and oven facades. Keep the touch controller away from inverter and relay switching sources on the PCB, and use the enable/firmware object table to implement water-rejection tuning profiles.
推荐
Medical Device User Interfaces
Benchtop diagnostics, infusion pumps, and patient monitors use 5-inch to 15-inch touch displays where reliability and clean EMI profiles are regulated requirements. The mXT3432S family's I2C host interface integrates easily with low-EMI medical electronics, and its firmware-object tuning supports the sensitivity validation required by design controls. The controller's touch-size data lets the firmware distinguish intentional presses from accidental contact, useful near alarms. Use the ATMXT3432S-M-CCU behind a glass-film-film stack, route I2C as a short guarded bus, and verify the device temperature range against sterilization-adjacent thermal environments in the datasheet.
推荐
Test and Measurement Instrument Panels
Bench instruments and handheld analyzers benefit from capacitive multi-touch for zoomable waveform and spectrum views on 7-inch to 17.3-inch displays. The ATMXT3432S-M-CCU's 10-touch support enables pinch-zoom interactions, and the shieldless-design capability reduces front-glass lamination cost in volume production. Because test instruments contain switching power supplies, the controller's noise rejection should be validated during panel tuning with the instrument's own DC-DC converters active. Mount the controller near the display tail, keep the I2C or USB trace length under 10 cm where possible, and follow Microchip's maXTouch design guide for ground stitching around the sensor.
推荐
Point-of-Sale and Retail Terminals
POS terminals and payment peripherals use compact capacitive touchscreens where the mXT3432S family's 17.3-inch ceiling covers even the largest countertop units. The ATMXT3432S-M-CCU delivers 10-touch reporting for signature capture and menu navigation, and USB interface mode connects directly to retail host boards. Its 3432-node capacity supports small-strip signature panels and larger customer displays from one controller platform, reducing qualification effort across product lines. For payment applications, confirm the datasheet's security and EMC documentation against PCI-relevant system requirements, and prefer franchised distributors to guarantee traceable, original Microchip silicon.
推荐
推荐产品汇总
工程参考数据： ATMXT3432S-M-CCU ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATMXT3432S-M-U | ATMXT3432S-M-CU | ATMXT3432S-M-Z2UR | ATMXT3432S-S-CU | ATMXT3432S-M-CCU023 |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Touch Controller Family | maXTouch mXT3432S | maXTouch mXT3432S - same | maXTouch mXT3432S - same | maXTouch mXT3432S - same | maXTouch mXT3432S - same | maXTouch mXT3432S - same |
| Touch Nodes | 3432 | 3432 | 3432 | 3432 | 3432 | 3432 |
| Max Screen Size | 17.3 inch | 17.3 inch | 17.3 inch | 17.3 inch | 17.3 inch | 17.3 inch |
| Interfaces | I2C / USB (family) | I2C / USB (family) | I2C / USB (family) | I2C / USB (family) | I2C / USB (family) | I2C / USB (family) |
关键差异点
- Large-panel coverage on one controller platform （对比 ATMXT3432S-M-CU)
- Shieldless design support cuts BOM cost （对比 ATMXT2952TD)
- Broad multi-source availability today （对比 ATMXT3432S-M-CCU023)
设计说明
Place the ATMXT3432S-M-CCU as close as possible to the touch sensor flex tail connector. Keep the I2C bus (or USB differential pair) shorter than 10 cm and route I2C away from switching regulator nodes; maXTouch controllers perform microvolt-level capacitance sensing, so ground stitching vias along the sensor interface significantly improve signal integrity. Follow Microchip's maXTouch hardware design guide for the recommended 0.1 uF VDD decoupling placement adjacent to each supply pin.
Do not assume suffix interchangeability without checking the datasheet ordering table: the CCU, CU, U, Z2UR, and S-CU suffixes of the mXT3432S encode package, packing, and possibly grade options. Swapping a suffix with a different package outline or moisture-sensitivity level can invalidate the PCB footprint and reflow profile. Verify the exact mechanical drawing and MSL before qualifying a substitute, and record the verified suffix in your AVL.
Budget panel-level tuning time during bring-up: maXTouch controllers require tuning with the final display, cover lens, and enclosure stack installed, because display noise and bezel grounding shift the mutual-capacitance baseline. Perform tuning with the actual host processor running, since its clock spurs appear in the acquisition spectrum. The controller's firmware object table (accessed over I2C) stores the final tuning profile, so version-control the configuration file like firmware.
合规信息
Compliance status not stated in the provided web data. Verify RoHS/REACH declarations on the Microchip product page or via Microchip's environmental documentation portal before procurement.
