CY8C29666-24LTXI

Overview

The CY8C29666-24LTXI is an 8-bit microcontroller from the PSoC 1 family, featuring the M8C processor core operating at up to 24 MHz. It integrates 32 KB of Flash program storage and 2 KB of SRAM data memory within a 48-pin QFN package. The device includes 12 analog PSoC blocks supporting up to 14-bit ADCs and 9-bit DACs, alongside 16 digital PSoC blocks for configurable logic. System resources include I2C, SPI, and UART interfaces, with an operating voltage range of 3.0 V to 5.25 V.

Feature Summary

• Configurable mixed-signal architecture allowing custom peripheral creation via programmable analog and digital blocks
• Integrated M8C Harvard-architecture processor with multiply-accumulate capabilities
• Flexible GPIO configuration with multiple drive modes and interrupt generation on all pins
• On-chip precision clocking with internal oscillators and optional external crystal support

Applications

• Consumer electronics requiring mixed-signal processing
• Industrial equipment control systems
• Communications interface modules
• Computational devices needing programmable analog front ends

Procurement Notes

Verify the specific ordering suffix LTXI to confirm the 48-pin QFN package and industrial temperature rating. Ensure compatibility with the PSoC Designer development environment. Confirm that the required number of analog and digital blocks matches the CY8C29x66 family specifications. Check for any specific revision notes or errata relevant to the silicon version being procured.

Selection Notes

Select this component when a design requires high configurability of both analog and digital peripherals on a single chip. The CY8C29666 offers extensive I/O options and robust analog performance suitable for complex signal conditioning. Consider the 24 MHz processing speed and memory size relative to application complexity. Evaluate the need for the specific 48-pin form factor against board space constraints.

Part Context

This part belongs to the Infineon PSoC 1 CY8C29x66 series, which provides a complete system-level solution. The series combines maximum design flexibility with ease of use, targeting markets such as consumer, computation, communications, automotive, and industrial equipment. It replaces multiple traditional MCU-based components with one programmable device.

Replacement Considerations

Check for direct substitutes within the CY8C29x66 family, such as CY8C29466 or CY8C29566, noting differences in pin count or block availability. Verify if newer generations like PSoC 3, 4, or 5LP offer functional equivalents with updated features.