CY8C24894-24LTXI

Overview

The CY8C24894-24LTXI is an 8-bit microcontroller from the PSoC 1 family, featuring the M8C processor core operating at up to 24 MHz. It integrates 16 KB of Flash program memory and 1 KB of SRAM data storage. The device includes a full-speed USB interface compliant with USB 2.0, supporting four unidirectional and one bidirectional control endpoint with a dedicated 256-byte buffer. It provides up to 49 I/O pins, six analog PSoC blocks for ADCs up to 14-bit resolution, and four digital PSoC blocks for configurable peripherals. Operating voltage ranges from 3 V to 5.25 V within an industrial temperature range of –40 °C to +85 °C.

Feature Summary

• Integrates a powerful M8C Harvard-architecture processor with speeds up to 24 MHz and two 8x8 multiply/32-bit accumulate units.
• Features flexible on-chip memory including 16 KB Flash with partial update capability and 1 KB SRAM.
• Includes six rail-to-rail analog PSoC blocks supporting high-resolution ADCs, DACs, and programmable filters.
• Provides full-speed USB connectivity without requiring external crystals or components.

Applications

• Capacitive sensing applications utilizing CSA capability
• USB-enabled peripheral devices requiring full-speed communication
• Industrial control systems operating in wide temperature environments
• Battery-powered devices leveraging low-power modes and internal regulators

Procurement Notes

Verify component authenticity through official Infineon/Cypress channels or authorized distributors. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Check for specific ordering suffixes that may indicate tape-and-reel packaging variations. Ensure compliance with RoHS directives and relevant environmental standards before integration into final products.

Selection Notes

Select this model when design requirements include integrated USB functionality alongside programmable analog and digital resources. Consider the CY8C24894-24LTXI for applications needing precise analog signal processing combined with digital control logic. Evaluate pin count availability against GPIO requirements, noting the specific XRES pin configuration for in-system programming support.

Part Context

This component belongs to the Cypress Semiconductor (now Infineon) PSoC 1 family, specifically the CY8C24x94 series. These devices are designed to replace multiple traditional MCU-based system components with a single programmable chip. The architecture combines configurable analog and digital blocks with a fast CPU, allowing customized peripheral configurations tailored to specific application needs.

Replacement Considerations

Consult official documentation for cross-reference compatibility. Verify electrical specifications and pinout assignments against potential substitute part numbers. Ensure functional equivalence regarding USB capabilities and analog block configurations before implementation.

FAQ

Does the CY8C24894-24LTXI require an external crystal for USB operation?

No, the device features an internal oscillator with 0.25% accuracy suitable for USB, eliminating the need for external crystals.

What is the maximum resolution supported by the analog-to-digital converters?

The analog PSoC blocks support analog-to-digital conversion with resolutions up to 14 bits.

How many digital PSoC blocks are included in this device?

The CY8C24894-24LTXI includes four digital PSoC blocks that can be configured into various digital peripherals.