Mfr Part #:

CY8C21123-24SXI

Mfr Name: Infineon

The Infineon CY8C21123-24SXI is a PSoC Programmable System-on-Chip microcontroller featuring an M8C core operating up to 24 MHz. It offers 4 KB of flash program storage and 256 bytes of SRAM data storage.

✓ Total Stock: 1,460 pcs

$ Price Range: $4.08

CY8C21123-24SXI Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Flip Electronics ✓ Non-Authorised Inventory information	1,455 pcs On Request	1455 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Braun Electronic Components ✓ Non-Authorised Inventory information	5 pcs On Request	5 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

CY8C21123-24SXI Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Infineon
Operating Temperature	-40 °C to +85 °C
Operating Voltage	2.4 V to 5.25 V

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CY8C21123-24SXI Description

Short technical summary and product information.

The Infineon CY8C21123-24SXI is a PSoC Programmable System-on-Chip (PSoC) microcontroller built on a Harvard architecture. It is powered by an M8C processor capable of speeds up to 24 MHz, designed for low power consumption at high performance.

This device features 4 KB of flash program storage with 50,000 erase/write cycles and 256 bytes of SRAM data storage. It includes advanced peripherals such as four analog PSoC blocks with comparators and ADCs, and four digital PSoC blocks supporting timers, counters, and PWMs. Communication interfaces include a full-duplex UART and SPI master/slave capabilities, as well as I2C master/slave/multi-master support up to 400 kHz.

The CY8C21123-24SXI operates within an industrial temperature range of -40 °C to +85 °C and supports operating voltages from 2.4 V to 5.25 V, with options for lower voltages using an on-chip switch mode pump. It offers flexible pin configurations with 25 mA sink and 10 mA source capabilities on all GPIOs, along with various drive modes and interrupt configurations.

Development is supported by free PSoC Designer software and in-circuit emulation tools. The device also includes precision, programmable clocking with internal oscillators and additional system resources like watchdog and sleep timers, and low-voltage detection.

CY8C21123-24SXI Quick Information

Product Type: Programmable System-on-Chip

Series: PSoC 1

Canonical Name: CY8C21123-24SXI PSoC Programmable System-on-Chip

Subcategory: Programmable System-on-Chip

CY8C21123-24SXI Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

CY8C21123-24SXI Estimated Pricing

Qty	Low	High
1+	$4.08	$4.08

Estimated market price range - modelled values for guidance only, not live distributor offers.

CY8C21123-24SXI Features

M8C processor speeds up to 24 MHz.
4 KB flash program storage with 50,000 cycles.
256 bytes SRAM data storage.
Industrial temperature range: -40 °C to +85 °C.
Supports UART, SPI, and I2C communication.

CY8C21123-24SXI Applications

Ideal for embedded control applications.
Suitable for systems requiring flexible I/O.
Used in applications needing low power modes.
Supports complex peripheral integration.

CY8C21123-24SXI FAQs

5 frequently asked questions generated from this part’s specifications.

What is the processor speed of the CY8C21123-24SXI?

The M8C processor in the CY8C21123-24SXI can operate at speeds up to 24 MHz.

What are the operating voltage and temperature ranges for this PSoC microcontroller?

The CY8C21123-24SXI operates from 2.4 V to 5.25 V and has an industrial temperature range of -40 °C to +85 °C.

How much flash and SRAM memory does the CY8C21123-24SXI have?

It features 4 KB of flash program storage and 256 bytes of SRAM data storage.

What communication interfaces are available on the CY8C21123-24SXI?

The device supports full-duplex UART, SPI master or slave, and I2C master, slave, and multi-master up to 400 kHz.

What is the resolution of the analog-to-digital converter (ADC) on this chip?

The analog-to-digital converter (ADC) has a resolution of 10 bits.

CY8C21123-24SXI Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.

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CY8C21434-24LTXI

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