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Infineon Technologies CY8C26233-24SXI
- Part No.:
- CY8C26233-24SXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CY8C26233-24SXI.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,931
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Product details
Overview
CY8C26233-24SXI from Cypress Semiconductor is a programmable System-on-Chip (PSoC™) integrating an M8C 8-bit Harvard-architecture CPU, 8 KB Flash, 256 bytes SRAM, 12 configurable analog blocks (including ΔΣ ADC, DAC, PGA, filters), and 8 digital blocks (PWM, UART, SPI, timers). It operates at up to 24 MHz, supports 3.0–5.25 V supply, and targets embedded control with mixed-signal reconfigurability in industrial sensor interfaces.
For engineers reviewing the CY8C26233-24SXI datasheet, CY8C26233-24SXI pinout, CY8C26233-24SXI application, or CY8C26233-24SXI equivalent, key selection criteria include on-chip analog block configurability, ISSP™ in-system programming capability, 24 MHz system clock tolerance, and support for precision analog signal conditioning without external components.
Technical Context
The device implements a fully static CMOS PSoC architecture with user-defined analog and digital peripheral arrays mapped via routing switches. Its M8C core executes instructions at up to 24 MHz using internal 24/48 MHz oscillator (±2.5%) or external 32.768 kHz crystal with PLL multiplication.
Analog functionality is implemented through 12 independent PSoC blocks supporting simultaneous ΔΣ ADC (11-bit), incremental ADC (12-bit), DAC (9-bit), programmable gain amplifiers, and active filters-all configured via PSoC Designer GUI without firmware coding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture with 24 MHz max clock and hardware multiply/accumulate |
| Flash Memory | 8 KB program memory with 50,000 erase/write cycles and partial update support |
| SRAM | 256 bytes data memory for variables and stack operations |
| Analog Blocks | 12 configurable blocks supporting ΔΣ ADC (11-bit), incremental ADC (12-bit), 9-bit DAC, PGA, and active filters |
| Digital Blocks | 8 programmable blocks providing PWM, UART, SPI, CRC, and timer functions |
| Operating Voltage | 3.0–5.25 V supply range; supports down to 1.0 V via on-chip voltage pump in low-power modes |
| Temperature Range | -40°C to +85°C industrial grade operation |
Pinout & Package
CY8C26233-24SXI is housed in a 28-pin SOIC package (SOIC-28) with 24 I/O pins, power, ground, reset, and clock inputs. All I/Os support Schmitt-trigger TTL input thresholds, programmable drive strength (up to 25 mA), pull-up/pull-down resistors, and interrupt-on-change capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 3.0–5.25 V supply rails; decoupling required per analog/digital section |
| XIN, XOUT | External crystal oscillator terminals | Supports 32.768 kHz crystal for precision timing and PLL reference |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with open-drain or push-pull drivers |
| P0[0]–P0[7] | Port 0 general-purpose I/O | Configurable as digital/analog I/O; supports analog routing to PSoC blocks |
| P1[0]–P1[7] | Port 1 general-purpose I/O | Same functionality as P0; includes dedicated analog bus connections |
| P2[0]–P2[7] | Port 2 general-purpose I/O | Includes GPIO interrupt capability and analog comparator bus access |
| VBAT | Backup supply input | Enables RTC and SRAM retention during main power loss when connected to coin cell |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Array | 12 independent analog blocks enable concurrent ADC, DAC, filtering, and amplification without external components |
| In-System Serial Programming | ISSP™ allows field firmware updates via two-wire interface without removing device from PCB |
| Programmable Digital Peripherals | 8 digital blocks support flexible PWM generation, UART communication, and CRC calculation with runtime reconfiguration |
| Low-Voltage Operation | On-chip switch-mode voltage pump enables functional operation down to 1.0 V supply for ultra-low-power sleep modes |
| EEPROM Emulation | Up to 2,304 bytes of nonvolatile parameter storage emulated in Flash with wear-leveling support |
Applications
| Industrial Sensor Interface | Motor Control Feedback |
|---|---|
Use Scenario: Condition signals from RTD, thermocouple, or pressure transducers in factory automation systems. IC Role / Device Role / Timing Role: Configurable analog front-end with ΔΣ ADC and PGA performs high-resolution signal acquisition and linearization. Use Value: Eliminates discrete op-amp and filter components while maintaining 11-bit effective resolution and <1 LSB INL. | Use Scenario: Monitor rotor position and current in BLDC motor drives using Hall-effect sensors and shunt resistors. IC Role / Device Role / Timing Role: Simultaneous PWM generation (with deadband), analog current sensing, and real-time fault detection. Use Value: Reduces BOM count by integrating gate driver timing logic, analog sensing, and protection interrupts in one die. |
| Smart Home Thermostat | Medical Instrument Front-End |
Use Scenario: Digitize ambient temperature, humidity, and CO₂ levels while managing LCD display and button inputs. IC Role / Device Role / Timing Role: Mixed-signal hub handling analog sensor inputs, LCD segment driving, and capacitive touch sensing. Use Value: Single-chip solution replaces MCU + ADC + LCD controller + touch IC, reducing PCB area by >40%. | Use Scenario: Acquire ECG, pulse oximetry, or bioimpedance signals requiring high SNR and low noise floor. IC Role / Device Role / Timing Role: Precision analog signal chain with programmable gain, notch filtering, and 12-bit incremental ADC sampling. Use Value: Achieves >80 dB SNR at 1 kHz with on-chip correlated double sampling and digital decimation. |
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 |
|---|---|---|---|
| CY8C26443-24SXI | 16 KB Flash, 4 KB SRAM, 24 I/O, same PSoC architecture and analog/digital block count | Higher memory capacity supports larger firmware and more complex analog configurations | Select when firmware size exceeds 8 KB or additional SRAM is needed for buffering |
| CY8C27443-24PVXIT | Enhanced PSoC 3 architecture (8051 core), 32 KB Flash, integrated USB, higher analog performance | USB connectivity and improved ADC linearity (12-bit ENOB) required for host-connected devices | Choose for new designs needing USB interface or >12-bit effective resolution |
Compared with CY8C26443-24SXI and CY8C27443-24PVXIT, the CY8C26233-24SXI offers optimal cost/performance balance for fixed-function embedded control where 8 KB Flash and legacy PSoC 1 toolchain compatibility are sufficient.
Availability
CY8C26233-24SXI is available at Aetrix Electronics and suitable for industrial sensor interfaces, motor control feedback systems, smart home thermostats, and medical instrument front-ends requiring stable component supply across long-lifecycle production programs.
Supply support for CY8C26233-24SXI 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, and memory products.
The PSoC™ 1 family-including CY8C26233-was designed to replace discrete analog and digital peripherals with a single configurable chip for cost-sensitive, medium-complexity embedded control applications.
FAQ
Is CY8C26233-24SXI still recommended for new designs?
No. Cypress explicitly marks CY8C26233-24SXI as "Not Recommended for New Designs" in its official documentation, advising migration to CY8C27xxx series (PSoC 3) or later generations. However, it remains supported for legacy design maintenance, second-sourcing, and existing production continuity where qualification timelines prohibit redesign.
What development tools are required for CY8C26233-24SXI?
The original PSoC Designer IDE (v5.4 or earlier) is mandatory, as it contains device-specific configuration libraries, User Modules, and ISSP™ programming support. Hardware debuggers include MiniProg1 and CY3210-PSoCEval1. Modern tools like PSoC Creator do not support this PSoC 1 device.
Does CY8C26233-24SXI support USB or CAN interfaces?
No. CY8C26233-24SXI lacks native USB or CAN transceivers and protocol stacks. Its digital blocks support UART, SPI, and I²C only. USB or CAN functionality requires external PHY chips and firmware implementation-neither is integrated nor validated by Cypress for this device.
How is flash security implemented on CY8C26233-24SXI?
It uses Cypress's proprietary Flash lock bits enabling read protection, write protection, and full chip protection modes. Once enabled, protected Flash cannot be read or reprogrammed without erasing the entire array. Security is enforced in hardware but does not prevent physical probing attacks; Cypress states code protection is not unbreakable and should not be relied upon for cryptographic key storage.
CY8C26233-24SXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- PSOC™1 CY8C26xxx
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.25V
- Data Converters:
- A/D 1x8b, 1x11b, 1x12b; D/A 1x9b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C26233-24SXI FAQ
1.How can I place an order for CY8C26233-24SXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C26233-24SXI 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 CY8C26233-24SXI reliable?
The price and inventory of CY8C26233-24SXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C26233-24SXI is usually 5 days.
3.What payment methods are accepted for CY8C26233-24SXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C26233-24SXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C26233-24SXI?
CY8C26233-24SXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C26233-24SXI 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 CY8C26233-24SXI?
For technical support, including CY8C26233-24SXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C26233-24SXI requirements.
6.How does Aetrix verify that CY8C26233-24SXI is sourced from the original manufacturer or authorized distributors?
All CY8C26233-24SXI 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 CY8C26233-24SXI meets industry standards.
7.What is the process for return or replacement of CY8C26233-24SXI?
All CY8C26233-24SXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C26233-24SXI, 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 CY8C26233-24SXI part is unused and in its original packaging.
Return procedure for CY8C26233-24SXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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