Infineon Technologies CY8CTMG201-48LTXI

Overview

CY8CTMG201-48LTXI from Cypress Semiconductor is a programmable system-on-chip (PSoC) integrating an M8C 8-bit CPU core, TrueTouch capacitive sensing engine, I²C slave interface, full-speed USB 2.0 transceiver, and configurable analog/digital peripherals. It operates at up to 24 MHz, features 16 KB flash, 2 KB SRAM, and supports 48-pin TQFP packaging with industrial temperature range (–40°C to +85°C). It is deployed in touch-enabled human interface modules for consumer electronics.

For engineers reviewing the CY8CTMG201-48LTXI datasheet, CY8CTMG201-48LTXI pinout, CY8CTMG201-48LTXI application, or CY8CTMG201-48LTXI equivalent, key selection criteria include its integrated TrueTouch sensing capability, USB 2.0 physical layer compliance, I²C slave address configuration, flash code protection level, and GPIO drive strength across voltage rails.

Technical Context

The device implements a hardwired M8C CPU core with Harvard architecture, 24 MHz internal main oscillator (IMO), and dual-clock domain operation supporting active, sleep, and deep-sleep modes. It integrates dedicated hardware blocks for capacitive sensing-including analog multiplexer, comparators, and sigma-delta modulators-enabling self-capacitance and mutual-capacitance measurement without external components.

Its system-level resources include a full-speed USB 2.0 transceiver compliant with USB Specification Rev 2.0 (LS/FS only), I²C slave controller supporting standard/fast-mode (100/400 kHz), and SPI master/slave with programmable clock polarity and phase. All digital peripherals are routed through a programmable interconnect matrix tied to 44 GPIOs.

Key Specifications

Pinout & Package

Package: 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable touch + USB interface applications.

Compared with CY8C20x34-24LFXI and MTCH6302-I/SS, CY8CTMG201-48LTXI uniquely integrates USB 2.0 PHY, TrueTouch engine, and programmable CPU in one die-reducing system component count, eliminating external USB bridge logic, and enabling standalone HID device operation without host dependency.

Availability

CY8CTMG201-48LTXI is available at Aetrix Electronics and suitable for industrial HMIs, USB peripheral modules, and consumer touch interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for CY8CTMG201-48LTXI 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 (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable mixed-signal, analog, and embedded control solutions for industrial, automotive, and consumer markets.

CY8CTMG201 belongs to the PSoC® TrueTouch™ family, designed specifically for single-chip capacitive touch sensing with integrated USB connectivity-targeting space-constrained, low-power, and rapid-development human interface applications.

FAQ

Does CY8CTMG201-48LTXI support USB suspend/resume without external circuitry?

Yes. The device implements full USB 2.0 suspend/resume signaling in hardware, including automatic detection of bus idle state, remote wakeup generation, and internal clock gating during suspend. No external pull-up resistors or discrete logic are needed-the USB_DP/DM pins include integrated 1.5 kΩ pull-up on DP and 15 kΩ pull-down on DM, configurable via USB_CR0 register.

Can the TrueTouch engine operate independently of the M8C CPU core?

Yes. The TrueTouch module runs autonomously using dedicated hardware sequencers and DMA channels. Sensor scanning, baseline update, and noise filtering execute in parallel with CPU operations. Firmware can configure scan parameters and read results via memory-mapped registers without CPU intervention during active sensing cycles.

What is the maximum supported crystal frequency for the ECO oscillator?

The External Crystal Oscillator (ECO) supports crystals from 1 MHz to 24 MHz. The TRM specifies stable operation up to 24 MHz with load capacitance of 12–22 pF and drive level ≤100 µW. Frequencies above 24 MHz require use of the internal IMO or PLL-based clock synthesis, which is not available on this PSoC generation.

Is flash programming possible over USB without external debug hardware?

Yes. The device supports USB-based bootloader programming using Cypress-provided Bootloader Host utility. Firmware updates are performed via standard USB bulk transfers to the pre-programmed bootloader residing in protected SROM, eliminating need for SWD/JTAG debug probes during field upgrades.