CY8C24423A-24PXI

Overview

The CY8C24423A-24PXI is an 8-bit microcontroller from the Infineon PSoC 1 family, utilizing the M8C core. It features 4 KB of Flash program storage and 256 bytes of SRAM data memory. The device supports a maximum clock frequency of 24 MHz and operates within a voltage range of 2.4 V to 5.25 V. It includes six analog PSoC blocks providing up to 14-bit ADCs and two 9-bit DACs, alongside four digital PSoC blocks for timers, counters, PWMs, UART, SPI, and I2C interfaces. The component is housed in a 28-pin DIP package and functions across an industrial temperature range of -40 °C to +85 °C.

Feature Summary

• Configurable analog system with six PSoC blocks supporting high-resolution ADCs, DACs, amplifiers, and filters.
• Flexible digital architecture with four PSoC blocks enabling custom peripheral creation such as timers, counters, and communication interfaces.
• Integrated low-voltage detection, power-on reset, and switch-mode pump for robust system management.
• Programmable GPIOs with multiple drive modes and interrupt capabilities on all pins.

Applications

• Battery-powered devices requiring low-voltage operation and efficient power management.
• Industrial control systems needing precise analog signal conditioning and digital processing.
• Consumer electronics utilizing programmable logic for custom interface requirements.
• Embedded systems integrating mixed-signal applications with configurable hardware peripherals.

Procurement Notes

Verify the specific ordering suffix to confirm the package type matches the required form factor. Ensure the voltage and temperature ratings align with the target application environment. Confirm compatibility with existing development tools and programming interfaces before integration. Check for any specific revision notes or errata associated with the manufacturing batch.

Selection Notes

Select this component when a mix of analog precision and digital flexibility is required in a single chip. The CY8C24423A-24PXI is suitable for designs needing multiple analog inputs and digital communication protocols without external components. Consider the available pin count and memory size relative to the application's complexity. Evaluate the need for programmable analog blocks versus fixed-function peripherals.

Part Context

This part belongs to the CY8C24x23A series of PSoC 1 devices, designed for low-power, low-voltage applications. It derives from the earlier CY8C24x23 family with enhancements for lower voltage operation. The series emphasizes programmability to replace multiple discrete components, reducing board space and inventory costs. It is part of Infineon's broader portfolio of programmable system-on-chip solutions.

Replacement Considerations

Direct substitutes within the same package and pinout include other variants in the CY8C24x23A family, such as CY8C24423A-24PVXI (SSOP) or CY8C24423A-24SXI (SOIC), provided the package difference is acceptable. Cross-family replacements require careful evaluation of pin compatibility and resource availability.

FAQ

What is the maximum resolution of the analog-to-digital converters?

The analog system provides up to 14-bit resolution for ADCs using the configurable PSoC blocks.

Can the device operate from a single 1.2 V battery cell?

Yes, by utilizing the on-chip switch-mode pump (SMP), the device can generate the necessary operating voltages from a single 1.2 V source.

How many digital PSoC blocks are available?

The CY8C24423A-24PXI contains four digital PSoC blocks that can be configured for various digital functions.