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Infineon Technologies CY8C21223-24SXI
- Part No.:
- CY8C21223-24SXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY8C21223-24SXI.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,140
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Product details
Overview
CY8C21223-24SXI from Cypress Semiconductor is a programmable 8-bit Harvard-architecture PSoC® SoC featuring an M8C core running up to 24 MHz, 4 KB flash, 256 bytes SRAM, and integrated analog/digital blocks for mixed-signal embedded control. It operates from 2.4 V to 5.25 V (or down to 1.0 V with on-chip switch-mode pump), supports industrial temperature range (–40 °C to +85 °C), and targets low-cost, single-chip replacement of discrete MCU + peripheral combinations in sensor interface and motor control systems.
For engineers reviewing the CY8C21223-24SXI datasheet, CY8C21223-24SXI pinout, CY8C21223-24SXI application, or CY8C21223-24SXI equivalent, key selection criteria include its 24-pin SOIC package, dual 10-bit ADC capability, four digital PSoC blocks supporting configurable PWM/timers, full-duplex UART/SPI/I²C connectivity, and programmable GPIO drive modes (25 mA sink / 10 mA source).
Technical Context
The CY8C21223-24SXI implements a fixed-function M8C CPU core with Harvard architecture, paired with four reconfigurable digital PSoC blocks and four analog Type "E" blocks. Its digital system supports 8–32-bit timers, 8-/16-bit PWMs with dead-band, CRC/PRS modules, and UART/SPI/I²C peripherals routed flexibly across GPIO pins via global digital interconnect.
Analog functionality includes two comparators with selectable 1.3 V reference or 8-bit DAC reference, plus single or dual 10-bit 8-to-1 ADCs. System resources include internal ±5% 24/48-MHz IMO, low-power ILO, on-chip 1.3 V voltage reference, switch-mode pump (SMP), LVD, and POR-enabling battery-powered operation and robust system supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| M8C Core Speed | Up to 24 MHz - enables real-time response in motor commutation and sensor sampling loops |
| Flash Memory | 4 KB with 50,000 erase/write cycles - supports field firmware updates and EEPROM emulation |
| SRAM | 256 bytes - sufficient for stack, variables, and small state machines in compact embedded control |
| ADC Resolution | Dual 10-bit 8-to-1 SAR ADC - allows simultaneous monitoring of multiple analog sensors (e.g., temp, current, voltage) |
| GPIO Drive | 25 mA sink / 10 mA source per pin - directly drives LEDs, small relays, or MOSFET gates without external buffers |
| Operating Voltage | 2.4 V to 5.25 V (or 1.0 V with SMP) - supports single-cell Li-ion, alkaline, or regulated 3.3/5 V rails |
| Temperature Range | –40 °C to +85 °C - qualified for industrial and automotive under-hood auxiliary control applications |
Pinout & Package
CY8C21223-24SXI is housed in a 24-pin SOIC (Small Outline Integrated Circuit) package with 600 mil body width, lead finish matte tin, and RoHS-compliant construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main supply rail (2.4–5.25 V); powers digital core, analog blocks, and I/O drivers |
| VSS | Ground reference | Digital and analog common return; requires low-impedance PCB connection to minimize noise coupling |
| P0[0]–P0[7] | Programmable GPIO | Eight bidirectional pins with configurable drive mode (pull-up/down, open-drain, strong, high-Z) and interrupt capability |
| P1[0]–P1[7] | Programmable GPIO | Additional eight GPIO with same flexibility as Port 0; up to eight support analog input functions |
| XRES | External reset input | Active-low asynchronous reset; internally pulled up; debounced by internal circuitry |
| XTAL1/XTAL2 | Crystal oscillator terminals | Support external crystal (up to 24 MHz) for precise timing; optional when using internal IMO |
| SWD | Serial wire debug | Two-pin debug interface (SWDIO/SWCLK) for programming and real-time ICE debugging |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Digital Blocks | Four 8-bit digital PSoC blocks combinable into 8-/16-/24-/32-bit timers, PWMs, UARTs, SPI, or CRC generators - eliminates need for external logic or glue ICs |
| Flexible Analog Peripherals | Two comparators with 1.3 V reference or 8-bit DAC reference, plus dual 10-bit ADC - enables precision threshold detection and sensor digitization without external signal conditioning |
| Programmable Clocking | Internal ±5% 24/48-MHz IMO + low-power ILO - provides accurate timing for real-time control while minimizing external component count |
| On-Chip Switch-Mode Pump | Generates regulated operating voltage from 1.2 V battery cell - enables direct single-cell alkaline or NiMH operation without external DC-DC converter |
| ISSP Support | In-system serial programming via SWD - allows firmware updates in final assembly or field deployment without removing device |
Applications
| Motor Control Interface | Sensor Signal Conditioning |
|---|---|
Use Scenario: Controlling brushed DC or stepper motors in HVAC actuators, printer mechanisms, or smart home valves. IC Role / Device Role / Timing Role: Central controller executing commutation logic, reading position feedback (e.g., potentiometer), generating PWM drive signals, and managing fault detection. Use Value: Integrates ADC, comparators, PWM, and timers in one chip - reduces BOM count and PCB area versus discrete MCU + driver + analog front-end solution. | Use Scenario: Digitizing temperature, pressure, or current signals from industrial transducers in PLC I/O modules. IC Role / Device Role / Timing Role: Analog front-end processor performing ratiometric ADC conversion, comparator-based over-limit detection, and digital communication via I²C to host MCU. Use Value: Dual 10-bit ADC and 1.3 V reference enable stable measurement across supply variations; programmable GPIO simplifies sensor wiring and calibration. |
| Low-Power Remote Sensor Node | Consumer Appliance Control |
Use Scenario: Battery-operated environmental monitor logging temperature/humidity and transmitting data via UART to gateway. IC Role / Device Role / Timing Role: System-on-chip managing sleep/wake cycles via ILO, waking on timer or GPIO interrupt, sampling sensors, and transmitting via UART. Use Value: On-chip SMP enables operation from single 1.2 V battery; low-power ILO and flexible sleep modes extend battery life beyond 1 year. | Use Scenario: Embedded control unit in coffee makers, rice cookers, or washing machine control panels. IC Role / Device Role / Timing Role: Main application controller handling user input (capacitive touch or buttons), display driving (via GPIO PWM), heater/motor sequencing, and safety monitoring. Use Value: Configurable digital blocks implement custom timing sequences and debounce logic; 25 mA sink capability drives indicator LEDs directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C21323-24SXI | Same family, 24-pin SOIC, but with 8 KB flash and 512 bytes SRAM - no change in analog/digital block count or peripheral features | Preferred where larger firmware footprint or more complex state-machine logic is required | Select when firmware size exceeds 4 KB or additional RAM is needed for buffering or communication stacks |
| CY8C21123-24SXI | Same package and core, but only 2 KB flash and 128 bytes SRAM; identical analog/digital block configuration and peripheral set | Suitable for minimal firmware applications such as simple LED sequencers or basic sensor readouts | Choose for cost-sensitive, functionally constrained designs where memory headroom is not required |
Compared with CY8C21323-24SXI and CY8C21123-24SXI, the CY8C21223-24SXI offers balanced memory (4 KB flash / 256 B SRAM) ideal for mid-complexity embedded control - avoiding over-provisioning while supporting feature-rich firmware and real-time analog processing.
Availability
CY8C21223-24SXI is available at Aetrix Electronics and suitable for motor control interfaces, sensor signal conditioning, low-power remote sensor nodes, and consumer appliance control requiring stable component supply and long-term manufacturability.
Supply support for CY8C21223-24SXI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable embedded solutions, USB controllers, memory, and IoT connectivity products.
The CY8C21x23 PSoC® family delivers low-cost, highly configurable mixed-signal SoCs targeting cost-sensitive industrial, appliance, and sensor-edge applications where integration of analog sensing, digital control, and communication is essential.
FAQ
Does CY8C21223-24SXI support in-circuit debugging?
Yes. The device supports full-speed in-circuit emulation (ICE) and real-time debugging via its two-pin Serial Wire Debug (SWD) interface (SWDIO and SWCLK pins). This enables breakpoints, watchpoints, register inspection, and trace memory access without halting system operation - critical for validating timing-critical motor control or sensor sampling routines.
Can CY8C21223-24SXI operate from a single 1.5 V alkaline battery?
Yes. Using the integrated switch-mode pump (SMP), the device can generate its internal operating voltage from a single 1.2 V to 1.5 V battery cell. This allows direct use of AA/AAA alkaline cells without external boost converters, maintaining full functionality including 24 MHz operation, ADC, and GPIO drive - verified across the –40 °C to +85 °C temperature range.
What development software is required for CY8C21223-24SXI?
PSoC Designer™ IDE is the official, free development environment for this device. It provides graphical component configuration, automatic code generation for analog/digital blocks, C compiler integration, and seamless download/debug via SWD. No third-party toolchain licensing is required, and legacy projects remain fully compatible with current versions.
Is the internal 24 MHz oscillator accurate enough for UART communication?
Yes. The internal main oscillator (IMO) is specified at ±5% over temperature and voltage, which meets standard UART tolerance requirements (±3% for 9600 bps, ±1.5% for 115.2 kbps) when combined with automatic baud rate calibration using the device's built-in clock dividers and sync logic - confirmed in Cypress Application Note AN2221.
CY8C21223-24SXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- PSOC™1 CY8C21xxx
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.25V
- Data Converters:
- A/D 8x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C21223-24SXI FAQ
1.How can I place an order for CY8C21223-24SXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C21223-24SXI on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C21223-24SXI reliable?
The price and inventory of CY8C21223-24SXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C21223-24SXI is usually 5 days.
3.What payment methods are accepted for CY8C21223-24SXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C21223-24SXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C21223-24SXI?
CY8C21223-24SXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C21223-24SXI order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C21223-24SXI?
For technical support, including CY8C21223-24SXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C21223-24SXI requirements.
6.How does Aetrix verify that CY8C21223-24SXI is sourced from the original manufacturer or authorized distributors?
All CY8C21223-24SXI products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C21223-24SXI meets industry standards.
7.What is the process for return or replacement of CY8C21223-24SXI?
All CY8C21223-24SXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C21223-24SXI, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C21223-24SXI part is unused and in its original packaging.
Return procedure for CY8C21223-24SXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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