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Infineon Technologies CY8C26233-24SI
- Part No.:
- CY8C26233-24SI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CY8C26233-24SI.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,600
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Product details
Overview
CY8C26233-24SI from Cypress Semiconductor is a programmable System-on-Chip (PSoC™) integrating an M8C 8-bit Harvard-architecture CPU, 8K Flash, 256B SRAM, 12 configurable analog blocks (including ΔΣ ADC, DAC, PGA), 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 sensor interface and mixed-signal control applications.
For engineers reviewing the CY8C26233-24SI datasheet, CY8C26233-24SI pinout, CY8C26233-24SI application, or CY8C26233-24SI equivalent, key selection criteria include on-chip analog configurability, ISSP™ in-system programming, 24 MHz clocking with internal oscillator, and support for low-power sleep modes with wake-on-pin-change.
Technical Context
The device implements a fully static CMOS architecture with dual-array PSoC blocks: analog blocks support delta-sigma ADC (up to 11-bit), 9-bit DAC, and programmable gain amplifiers; digital blocks deliver PWM with deadband, full-duplex UART, and CRC modules. All blocks are user-configured via PSoC Designer GUI without firmware coding.
Clocking includes internal 24/48 MHz oscillator (±2.5%), optional 32.768 kHz crystal input for PLL synchronization, and dedicated low-speed oscillator for watchdog/sleep timing. Memory subsystem features 50,000 Flash erase/write cycles and EEPROM emulation (2,304 bytes).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture with 24 MHz max operation and hardware multiply/accumulate |
| Flash Memory | 8 KB program memory with 50,000 erase/write cycles and partial update capability |
| SRAM | 256 bytes data memory with register-speed access for real-time variables |
| Analog Blocks | 12 user-configurable blocks supporting ΔΣ ADC (11-bit), incremental ADC, 9-bit DAC, PGA, filters |
| Digital Blocks | 8 programmable blocks including PWM (with deadband), UART, SPI, CRC, and event timers |
| Operating Voltage | 3.0–5.25 V nominal; down to 1.0 V using on-chip switch-mode voltage pump |
| Temperature Range | -40°C to +85°C industrial grade operation with on-chip temperature sensing |
Pinout & Package
Package: 28-pin SOIC (SO-28), body width 300 mil, lead pitch 1.27 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main 3.0–5.25 V supply rail for core and I/O |
| VSS | Ground reference | Digital and analog common ground plane |
| XIN/XOUT | Crystal oscillator terminals | Supports optional 32.768 kHz crystal for precision timing or PLL reference |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced externally recommended |
| P0[0]–P0[7] | General-purpose I/O port | Schmitt-trigger inputs, 25 mA logic drive, interrupt-on-change capable |
| P1[0]–P1[3] | Analog/digital multiplexed I/O | Configurable as analog inputs (to ADC/DAC), comparator inputs, or digital pins |
| VBAT | Backup power input | Enables RTC/sleep timer operation during main power loss |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Array | 12 independent analog blocks enabling simultaneous ADC, DAC, PGA, and filter functions without external components |
| GUI-Based Peripherals | PSoC Designer software provides drag-and-drop User Modules (e.g., LCD controller, op-amp, low-pass filter) with auto-generated code |
| In-System Serial Programming | ISSP™ allows field firmware updates via two pins (SDA/SCL or SWD-like protocol), no external programmer required |
| Low-Power Sleep Modes | Multiple sleep states with wake-on-pin-change, RTC alarm, or analog threshold crossing - enables µA-level standby current |
| Flash Security | Configurable protection modes prevent readback of Flash contents; supports secure boot and IP protection |
Applications
| Industrial Sensor Interface | Smart Home Control Panel |
|---|---|
Use Scenario: Condition monitoring of temperature, pressure, and humidity sensors in factory automation nodes. IC Role / Device Role / Timing Role: Mixed-signal front-end and local decision engine - digitizes analog sensor outputs, runs threshold logic, and communicates status via UART. Use Value: Eliminates discrete ADC, op-amp, and microcontroller; reduces BOM count by ≥4 components while maintaining calibration flexibility. | Use Scenario: Touch-button and LED feedback control unit for HVAC and lighting in residential smart hubs. IC Role / Device Role / Timing Role: Capacitive touch sense controller + LED dimming driver + system coordinator - handles raw cap-sense signals and drives PWM-controlled LEDs. Use Value: Single-chip replaces touch ASIC + LED driver + MCU; supports dynamic sensitivity tuning and gamma-corrected brightness curves in firmware. |
| Medical Wearable Monitor | Automotive Body Control Module |
Use Scenario: Portable pulse oximeter with analog front-end, battery monitoring, and Bluetooth-ready serial output. IC Role / Device Role / Timing Role: Signal conditioning and digital processing unit - acquires photodiode signals via ΔΣ ADC, computes SpO₂ ratio, manages low-voltage detection. Use Value: On-chip 11-bit ΔΣ ADC and programmable gain amplifier enable high SNR without external signal chain; supports FDA-aligned design traceability. | Use Scenario: Door lock actuator control with position feedback, motor drive enable, and LIN bus communication readiness. IC Role / Device Role / Timing Role: Local intelligence node - reads hall-effect position sensor, generates PWM for H-bridge gate drivers, and prepares LIN message payload. Use Value: Digital PSoC blocks implement precise PWM deadtime control and UART-to-LIN framing; analog blocks condition sensor signals without external op-amps. |
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 |
|---|---|---|---|
| CY8C27443-24PVXI | Upgraded PSoC 1 family: 16 KB Flash, 512B SRAM, enhanced analog routing, higher ADC sample rate (200 kSPS vs. 100 kSPS) | Supports more complex sensor fusion algorithms and larger firmware; requires updated PSoC Designer version | Select when >8 KB Flash or faster analog acquisition is required; pin-compatible but needs layout review for VDDIO/VREF routing |
| STM32F030F4P6 | ARM Cortex-M0 MCU: 16 KB Flash, 4 KB SRAM, fixed-function peripherals (12-bit ADC, 1x USART, 1x SPI), no configurable analog array | Lacks on-the-fly analog reconfiguration; requires external op-amps or ADCs for precision sensor interfaces | Select for cost-sensitive, high-volume applications where analog signal chain is fixed and firmware-driven control dominates |
Compared with CY8C26233-24SI, CY8C27443-24PVXI offers expanded memory and analog throughput for evolving designs, while STM32F030F4P6 trades configurability for lower unit cost and ARM ecosystem support - choice depends on analog flexibility vs. toolchain familiarity requirements.
Availability
CY8C26233-24SI is available at Aetrix Electronics and suitable for industrial sensor interface, smart home control panel, and medical wearable monitor applications requiring stable component supply and long-term lifecycle visibility.
Supply support for CY8C26233-24SI 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 U.S.-based semiconductor company specializing in programmable embedded solutions, USB controllers, and memory products.
CY8C26233 belongs to the PSoC™ 1 family - designed specifically to replace discrete analog/digital components with a single, GUI-configurable chip for cost-sensitive, medium-complexity mixed-signal embedded systems.
FAQ
Is CY8C26233-24SI still recommended for new designs?
No. Cypress explicitly marks this device as "Not Recommended for New Designs" in its official documentation (Rev. *C, May 2005), advising migration to the CY8C27xxx series. However, it remains supported for legacy production, repair, and obsolescence-risk-managed programs with verified qualification.
What development tools are required to program CY8C26233-24SI?
PSoC Designer 5.x is the official IDE - a Windows-only integrated environment that includes schematic-based peripheral configuration, automatic code generation, and ISSP™ programming support. Required hardware includes a MiniProg1 or compatible programmer; no JTAG adapter is needed.
Does CY8C26233-24SI support true hardware UART with FIFO?
Yes - it integrates a full-duplex UART digital block with programmable baud rate generator, TX/RX shift registers, and status flags (TX empty, RX full). While it lacks a deep hardware FIFO, its interrupt-driven receive buffer and auto-baud detect simplify RS-232/RS-485 interface implementation.
Can the analog blocks perform simultaneous ADC and DAC operations?
Yes - the 12 analog PSoC blocks operate independently. One block can run a 11-bit delta-sigma ADC while another executes a 9-bit DAC output, and a third configures as a programmable gain amplifier - all concurrently, with no resource contention or CPU intervention required.
CY8C26233-24SI 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:
CY8C26233-24SI FAQ
1.How can I place an order for CY8C26233-24SI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C26233-24SI 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 CY8C26233-24SI reliable?
The price and inventory of CY8C26233-24SI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C26233-24SI is usually 5 days.
3.What payment methods are accepted for CY8C26233-24SI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C26233-24SI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C26233-24SI?
CY8C26233-24SI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C26233-24SI 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 CY8C26233-24SI?
For technical support, including CY8C26233-24SI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C26233-24SI requirements.
6.How does Aetrix verify that CY8C26233-24SI is sourced from the original manufacturer or authorized distributors?
All CY8C26233-24SI 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 CY8C26233-24SI meets industry standards.
7.What is the process for return or replacement of CY8C26233-24SI?
All CY8C26233-24SI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C26233-24SI, 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 CY8C26233-24SI part is unused and in its original packaging.
Return procedure for CY8C26233-24SI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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