Infineon Technologies CYTMA568-70BUI58AP

Overview

CYTMA568-70BUI58AP from Cypress Semiconductor is a multi-touch capacitive touchscreen controller featuring a 32-bit ARM Cortex™ CPU, configurable register architecture, and DualSense™ water/wet-finger tracking. It supports up to 58 sense pins (21 × 37 intersections), 10-finger reporting, 230 Hz refresh rate, and 500 kHz TX frequency for 7.9-inch displays with 58AA(T) configuration.

For engineers reviewing the CYTMA568-70BUI58AP datasheet, CYTMA568-70BUI58AP pinout, CYTMA568-70BUI58AP application, or CYTMA568-70BUI58AP equivalent, key selection criteria include mutual capacitance sensing with ChargerArmor™ noise immunity (20 VPP), passive stylus + glove + hover support, and 70-ball BGA package compatibility with in-cell display integration.

Technical Context

The CYTMA568-70BUI58AP implements a mutual capacitance sensing architecture with dedicated hardware acceleration for real-time touch coordinate computation and baseline tracking. Its ARM Cortex™ CPU executes firmware for gesture recognition, palm rejection, and dynamic TX slew rate control.

It integrates ChargerArmor™ circuitry to suppress common-mode noise from USB chargers and supports external display synchronization for reduced visual artifacts. The device uses DualSense™ to independently process self- and mutual-capacitance signals for robust wet-finger operation and large-object rejection.

Key Specifications

Pinout & Package

70-ball 5.5 × 5.5 × 0.6-mm BGA package with 0.5-mm ball pitch, optimized for compact mobile and automotive display modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multi-touch capacitive touchscreen controller applications.

Compared with SYNAPTICS TMA463-001 and ATMEL MAXT336U, the CYTMA568-70BUI58AP delivers higher node count (58), superior charger noise immunity (20 VPP), and integrated environmental robustness (DualSense™, hover, glove), making it optimal for premium 7.9-inch in-cell displays in automotive and industrial settings.

Availability

CYTMA568-70BUI58AP is available at Aetrix Electronics and suitable for smartphone UI, automotive infotainment, and industrial tablet applications requiring stable component supply, long-term lifecycle support, and validated touch performance under harsh EMI and environmental conditions.

Supply support for CYTMA568-70BUI58AP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor Corporation, now part of Infineon Technologies, designs high-performance mixed-signal ICs for embedded systems, with leadership in capacitive sensing, USB connectivity, and programmable system-on-chip solutions.

The CYTMA568 product line targets high-reliability touch interfaces for mobile, automotive, and industrial displays-specifically engineered to replace mechanical buttons with robust, waterproof, and glove-compatible multi-touch control.

FAQ

What touchscreen sensor architectures does CYTMA568-70BUI58AP support?

The CYTMA568-70BUI58AP supports Manhattan, Diamond, SLIM®, and Totem-pole sensor patterns, as well as Sensor-on-Lens (SOL), on-cell, and in-cell display integrations. It accommodates PET and glass substrates with LCD, AMOLED, IPS, and metal-mesh overlays-enabling flexible mechanical stackup design without firmware changes.

Does CYTMA568-70BUI58AP require external components for charger noise suppression?

No. ChargerArmor™ is fully integrated into the CYTMA568-70BUI58AP's analog front-end, providing 20 VPP common-mode noise immunity without external filters, ferrites, or shielding. This eliminates BOM cost and layout area typically required for USB charger noise mitigation in mobile and automotive designs.

How is wet-finger and water rejection implemented in this controller?

Wet-finger and water rejection are achieved via DualSense™-a hardware-accelerated dual-sensing mode that concurrently acquires self-capacitance (for water layer detection) and mutual-capacitance (for finger position). The firmware fuses both datasets to distinguish true touch from surface moisture, enabling operation under rain or condensation without calibration drift.

Can CYTMA568-70BUI58AP be upgraded in the field after deployment?

Yes. The device includes an on-chip bootloader supporting field firmware updates via I²C or SPI. Updates preserve calibration data and panel-specific parameters stored in internal EEPROM, allowing feature enhancements, bug fixes, and sensor tuning without physical rework or JTAG access.