Infineon Technologies CY8C5248LTI-030

Overview

CY8C5248LTI-030 from Infineon Technologies (acquired Cypress Semiconductor) is a programmable system-on-chip (PSoC® 5) integrating a 32-bit ARM Cortex-M3 CPU core, 256 KB flash, 64 KB SRAM, 2 KB EEPROM, 12-bit SAR ADC (700 ksps), and 24 universal digital blocks (UDBs) in a 100-pin TQFP package. It supports USB 2.0 Full-Speed, multimaster I²C, CapSense®, LCD direct drive (46×16), and operates from 2.7 V to 5.5 V across –40 °C to +85 °C for embedded control and mixed-signal acquisition.

For engineers reviewing the CY8C5248LTI-030 datasheet, CY8C5248LTI-030 pinout, CY8C5248LTI-030 application, or CY8C5248LTI-030 equivalent, key selection criteria include configurable analog/digital routing, UDB-based peripheral synthesis, low-power sleep modes (2 µA), SWD debug support, and integrated voltage reference (1.024 V ±1%) for precision sensor interfacing.

Technical Context

The device implements a hierarchical architecture with tightly coupled CPU subsystem (ARM Cortex-M3 @ up to 40 MHz), dual-bus interconnect (AHB for high-bandwidth DMA, DSI for flexible digital signal routing), and independent analog routing matrix enabling any GPIO to serve as ADC input, DAC output, comparator terminal, or CapSense electrode. Its nonvolatile subsystem includes flash with 100,000 write cycles and EEPROM with 1 million cycles-both supporting 20-year data retention.

Digital peripherals are synthesized via 24 UDBs containing PAL/PLD logic and state machines, allowing runtime reconfiguration of timers, PWMs, UARTs, SPIs, LIN, CRC, and quadrature decoders. Analog resources include two 95-ns comparators, programmable IDAC/VDAC (5.5 Msps / 1 Msps), and SAR ADC with hardware averaging and windowed conversion triggers-all accessible through shared analog bus without external components.

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Flat Package (TQFP), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant, industrial temperature range (–40 °C to +85 °C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable SoC applications.

Compared with STM32F411RE and PSoC™ 62S2-064DXI, CY8C5248LTI-030 uniquely balances high-resolution analog integration (12-bit SAR, IDAC/VDAC), USB 2.0 connectivity, and UDB-based digital flexibility - making it optimal for cost-sensitive, mixed-signal embedded systems requiring last-minute firmware-driven feature changes.

Availability

CY8C5248LTI-030 is available at Aetrix Electronics and suitable for industrial motor control, medical sensor hubs, smart home touch interfaces, and automotive body controllers requiring stable component supply and long-term lifecycle support.

Supply support for CY8C5248LTI-030 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

Infineon Technologies acquired Cypress Semiconductor in 2020 and now owns the PSoC® portfolio. Infineon is a global semiconductor leader focused on power systems, automotive electronics, and secure connectivity solutions.

The CY8C52 family belongs to Infineon's PSoC® 5 programmable SoC product line, designed specifically for embedded applications demanding high analog precision, flexible digital logic synthesis, and seamless integration of control, sensing, and communication functions in a single chip.

FAQ

What development tools are required to program and debug CY8C5248LTI-030?

PSoC Creator™ IDE (legacy, Windows-only) is the official tool for schematic-based design, component configuration, and firmware generation. Programming and debugging require a KitProg2 or MiniProg3 programmer/debugger supporting SWD. The device also supports OpenOCD and Arm GCC toolchains for advanced users, though peripheral configuration still relies on PSoC Creator-generated initialization code.

Does CY8C5248LTI-030 support USB device enumeration without external crystal?

No. Full-Speed USB 2.0 operation requires a 24 MHz external crystal connected to XIN/XOUT pins. The internal IMO oscillator does not meet USB timing accuracy requirements (±0.25% tolerance). A 24 MHz ±100 ppm crystal is mandatory for reliable USB device enumeration and data transfer.

Can all 60 GPIOs be used simultaneously as analog inputs with the SAR ADC?

No. While all GPIOs support analog routing, the SAR ADC has one sample-and-hold circuit and sequential conversion architecture. It can scan up to 62 channels via multiplexing, but only one channel is converted at a time. Simultaneous sampling across multiple pins requires external analog front-end circuitry or use of the device's dual-comparator inputs for threshold detection.

Is the 2 KB EEPROM truly byte-erasable and wear-levelled in hardware?

Yes. The on-chip EEPROM supports true byte-level writes and erases with built-in wear leveling managed by the PSoC's firmware library (CySysEepromWrite()). Each byte endures 1 million write/erase cycles with guaranteed 20-year data retention at 85 °C, verified per JEDEC JESD22-A117 reliability testing standards.