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Infineon Technologies CY8C26233-24PI
- Part No.:
- CY8C26233-24PI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
CY8C26233-24PI.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,362
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Product details
Overview
CY8C26233-24PI from Cypress Semiconductor is a programmable System-on-Chip (PSoC™) integrating an M8C 8-bit CPU, 8 KB Flash, 256 B 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 control with mixed-signal flexibility in industrial sensors and motor interfaces.
For engineers reviewing the CY8C26233-24PI datasheet, CY8C26233-24PI pinout, CY8C26233-24PI application, or CY8C26233-24PI equivalent, key selection criteria include on-chip analog configurability, ISSP™ in-system programming, 24 MHz M8C core performance, and support for precision sensor signal conditioning without external ADC/DAC.
Technical Context
The CY8C26233-24PI implements a Harvard-architecture M8C CPU with 24 MHz max clock, 8×8 multiply/32-bit accumulate, and register-speed memory transfers. Its analog subsystem includes 12 user-configurable PSoC blocks supporting ΔΣ ADC (up to 11-bit), incremental ADC (up to 12-bit), 9-bit DAC, and programmable gain amplifiers.
Digital resources comprise 8 PSoC blocks offering PWM with deadband, full-duplex UART, SPI master/slave, CRC, and flexible clocking. Memory includes 8 KB Flash (50,000 erase/write cycles), 256 B SRAM, and EEPROM emulation up to 2,304 bytes via Flash.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max operation - enables real-time control with deterministic timing for sensor polling and actuator drive. |
| Flash Memory | 8 KB - sufficient for firmware + user modules including analog/digital configuration code and calibration tables. |
| SRAM | 256 bytes - supports stack, variables, and small buffers for UART/SPI transaction handling. |
| Analog Blocks | 12 configurable - each can be assigned as ADC, DAC, PGA, comparator, or filter, enabling mixed-signal signal chains without external components. |
| Digital Blocks | 8 programmable - provide hardware PWM, UART, SPI, timers, and CRC, reducing firmware overhead for communication and timing tasks. |
| Operating Voltage | 3.0–5.25 V - compatible with standard industrial logic rails and tolerant of supply variation in noisy environments. |
| Temperature Range | –40°C to +85°C - qualified for extended industrial operation without derating. |
Pinout & Package
Package: 28-pin DIP (Dual In-line Package), through-hole mounting, 0.6-inch width, industry-standard footprint for prototyping and legacy board designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | Main 3.0–5.25 V supply input for core and I/O; decoupling required near pin for stable analog/digital operation. |
| VSS | Ground | Digital and analog ground reference; recommended star grounding for noise-sensitive analog measurements. |
| XIN/XOUT | Crystal Oscillator Interface | Supports optional 32.768 kHz crystal for precise RTC or PLL reference; internal oscillator used if unconnected. |
| P0[0]–P0[7] | General-Purpose I/O | 8-bit port with Schmitt-trigger inputs, programmable drive strength (25 mA), interrupt-on-change, and analog-capable pins. |
| P1[0]–P1[3] | General-Purpose I/O | 4-bit port with same features as P0; usable for GPIO, analog input/output, or digital peripheral routing (e.g., UART TX/RX). |
| RESET | Active-Low Reset Input | Asynchronous reset assertion clears CPU state and reinitializes PSoC blocks; internal pull-up enabled by default. |
| SWD | Serial Wire Debug | Single-pin debug interface for programming and real-time debugging via ISSP™ protocol using external programmer. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Array | 12 independent analog PSoC blocks enable on-the-fly reconfiguration of ADC, DAC, PGA, and filters - eliminates need for discrete signal-conditioning ICs. |
| In-System Serial Programming (ISSP™) | Field firmware updates via SWD pin using low-cost programmers - supports production programming and post-deployment bug fixes without socket removal. |
| Programmable Digital Peripherals | 8 digital blocks deliver hardware PWM with deadband, UART, SPI, and CRC offloading - reduces CPU load and improves timing accuracy in motor control loops. |
| Flexible Clocking | Internal 24/48 MHz oscillator (±2.5%) plus optional 32.768 kHz crystal input - enables precise timing for both high-speed control and low-power sleep modes. |
| EEPROM Emulation | Up to 2,304 bytes of nonvolatile storage emulated in Flash - retains calibration data, device IDs, or user settings across power cycles without external EEPROM. |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Standalone temperature/humidity sensor node with analog front-end and RS-232 output. IC Role / Device Role / Timing Role: Primary controller and analog signal conditioner - digitizes sensor outputs via ΔΣ ADC, applies linearization in firmware, and transmits via UART. Use Value: Single-chip integration replaces MCU + external ADC + voltage reference + level shifter, reducing BOM count and PCB area by >40%. | Use Scenario: Brushless DC motor commutation controller with current sensing and PWM generation. IC Role / Device Role / Timing Role: Real-time motor controller - executes commutation logic, generates synchronized 3-phase PWM with deadband, and monitors phase currents via PGA + ADC. Use Value: Hardware-accelerated PWM and analog acquisition ensure <1 µs timing jitter, critical for torque ripple reduction and EMI compliance. |
| Smart Actuator Module | Legacy Equipment Retrofit |
Use Scenario: Pneumatic valve driver with position feedback, fault detection, and HART-compatible 4–20 mA output. IC Role / Device Role / Timing Role: Mixed-signal actuator controller - conditions potentiometer feedback, drives 4–20 mA loop via DAC and op-amp circuitry, and implements diagnostics. Use Value: On-chip 9-bit DAC and programmable gain amplifier enable precise current loop control without trimming resistors or external DACs. | Use Scenario: Retrofit controller for aging PLC I/O modules requiring analog input expansion and isolation. IC Role / Device Role / Timing Role: Drop-in analog acquisition engine - replaces obsolete 8051-based designs with enhanced resolution (11-bit ΔΣ ADC) and ISSP™ field update capability. Use Value: Pin-compatible DIP package allows direct replacement on existing boards while adding Flash-based firmware flexibility and improved SNR. |
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 |
|---|---|---|---|
| CY8C26443-24PVXIT | 64 KB Flash, 2 KB SRAM, 28-pin SSOP - larger memory and surface-mount package. | Supports more complex firmware, larger user module sets, and higher-density PCB layouts. | Select when firmware size exceeds 8 KB or board space requires SMT assembly. |
| CY8C27443-24PVXIT | Newer PSoC 3-generation part with 8051 core, 32 KB Flash, USB interface, and enhanced analog performance. | Enables USB connectivity, higher-resolution ADC (12-bit SAR), and faster interrupt response for time-critical control. | Select for new designs requiring USB host/device capability or migration path beyond PSoC 1 architecture. |
Compared with CY8C26233-24PI, CY8C26443 offers scalable memory for feature-rich firmware but lacks USB; CY8C27443 adds USB and modern peripherals but requires redesign due to different core, toolchain, and package - making CY8C26233 optimal for cost-sensitive, DIP-based legacy upgrades.
Availability
CY8C26233-24PI is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, smart actuator modules, and legacy equipment retrofits requiring stable component supply and long-term obsolescence management.
Supply support for CY8C26233-24PI 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 for cost-effective, highly integrated mixed-signal control in resource-constrained industrial and consumer systems where analog configurability and rapid prototyping are essential.
FAQ
Is CY8C26233-24PI still in production?
No - Cypress officially designated CY8C26233-24PI as "Not Recommended for New Designs" in May 2005, favoring CY8C27xxx series. However, Aetrix Electronics maintains active inventory and provides traceable, tested units for legacy system repair and continuity programs with documented lot traceability.
What development tools are required to program CY8C26233-24PI?
The original PSoC Designer IDE (v5.x) is required, along with a MiniProg1 or compatible ISSP™ programmer. These tools remain available through Aetrix's legacy support portal with validated installation packages and driver compatibility notes for modern Windows OS versions.
Does CY8C26233-24PI support analog input multiplexing?
Yes - its 12 analog PSoC blocks include dedicated analog multiplexer routing resources. Up to 8 analog inputs can be sequentially sampled by a single ΔΣ ADC block using internal switching controlled via AMUXBUF registers, enabling multi-channel sensor monitoring without external MUX ICs.
Can CY8C26233-24PI operate below 3.0 V?
Yes - it supports down to 1.0 V using the on-chip switch-mode voltage pump, though Flash programming and analog block operation require ≥3.0 V. At 1.0–2.9 V, only basic CPU execution and GPIO functions remain active, enabling ultra-low-power wake-on-event modes in battery-powered applications.
CY8C26233-24PI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
CY8C26233-24PI FAQ
1.How can I place an order for CY8C26233-24PI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C26233-24PI 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 CY8C26233-24PI reliable?
The price and inventory of CY8C26233-24PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C26233-24PI is usually 5 days.
3.What payment methods are accepted for CY8C26233-24PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C26233-24PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C26233-24PI?
CY8C26233-24PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C26233-24PI 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 CY8C26233-24PI?
For technical support, including CY8C26233-24PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C26233-24PI requirements.
6.How does Aetrix verify that CY8C26233-24PI is sourced from the original manufacturer or authorized distributors?
All CY8C26233-24PI 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 CY8C26233-24PI meets industry standards.
7.What is the process for return or replacement of CY8C26233-24PI?
All CY8C26233-24PI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C26233-24PI, 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 CY8C26233-24PI part is unused and in its original packaging.
Return procedure for CY8C26233-24PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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