CY8C24794-24LTXI

Overview

The CY8C24794-24LTXI is an 8-bit microcontroller from the Cypress PSoC 1 family, utilizing the M8C processor core. It features 16 KB of Flash program storage and 1 KB of SRAM data memory. The device supports a maximum clock speed of 24 MHz and operates within a voltage range of 3 V to 5.25 V. It includes full-speed USB 2.0 compliance with a dedicated 256-byte buffer and four unidirectional plus one bidirectional endpoint. The architecture integrates six analog PSoC blocks for ADCs, DACs, and amplifiers, alongside four digital PSoC blocks for timers, counters, and communication interfaces.

Feature Summary

• Integrates capacitive sensing application (CSA) capability within the programmable system-on-chip architecture.
• Provides flexible on-chip memory with support for partial flash updates and electrically erasable programmable read-only memory emulation.
• Features precision programmable clocking with internal oscillators ensuring 0.25% accuracy for USB without external components.
• Supports configurable pin configurations with multiple drive modes and interrupt capabilities on all general-purpose I/O pins.

Applications

• Capacitive sensing controllers
• Single-cell lithium-based battery chargers
• Displays and monitors with resistive touch screen control

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure compatibility with the required development tools, such as PSoC Designer, for firmware integration. Confirm that the selected variant meets the specific electrical requirements of the target application environment.

Selection Notes

Select this component when a design requires integrated analog and digital peripherals alongside USB connectivity in a single chip. It is suitable for applications needing capacitive sensing or precise analog signal processing. Consider the available GPIO count and memory size relative to the complexity of the custom peripheral configuration required.

Part Context

This part belongs to the CY8C24x94 series of PSoC Programmable System-on-Chips. These devices are designed to replace multiple traditional MCU-based system components with a single low-cost programmable component. The series offers configurable analog and digital logic blocks connected via global interconnects.

Replacement Considerations

Consult the official datasheet for cross-reference information regarding compatible devices within the CY8C24x94 family. Verify pinout and functional equivalence before substituting with other variants in the same series.