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Infineon Technologies CY8C26443-24PXI
- Part No.:
- CY8C26443-24PXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-DIP (0.300", 7.62mm)
- Datasheet:
-
CY8C26443-24PXI.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,690
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Product details
Overview
CY8C26443-24PXI 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 PSoC blocks (including ΔΣ ADC, DAC, PGA, filters), and 8 digital PSoC 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 interface modules.
For engineers reviewing the CY8C26443-24PXI datasheet, CY8C26443-24PXI pinout, CY8C26443-24PXI application, or CY8C26443-24PXI equivalent, key selection criteria include on-chip analog configurability, ISSP™ in-system programming support, 24-pin SSOP package compatibility, and legacy PSoC Designer™ toolchain integration for rapid mixed-signal prototyping without custom peripheral design.
Technical Context
The device implements a fully static CMOS architecture with dual-clock domains: a high-speed system clock (up to 24 MHz from internal oscillator ±2.5%) and a low-power sleep clock (32.768 kHz crystal option). Analog PSoC blocks operate independently via dedicated clock select registers and support synchronous sampling across multiple channels using analog synchronization logic.
Digital PSoC blocks are organized in two banks with global input/output routing, enabling concurrent PWM generation, UART communication, and CRC computation. Memory-mapped I/O registers provide bit-level control of Schmitt-triggered GPIOs with interrupt-on-change capability and programmable drive strength (25 mA logic / 40 mA analog).
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 capability |
| SRAM | 256 bytes data memory for runtime variables and stack operations |
| Analog Blocks | 12 user-configurable analog PSoC blocks supporting ΔΣ ADC (11-bit), DAC (9-bit), PGA, and active filters |
| Digital Blocks | 8 programmable digital PSoC blocks including PWM with deadband, full-duplex UART, and SPI master/slave |
| Operating Voltage | 3.0–5.25 V supply range; 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 voltage reference and LVD detection |
Pinout & Package
Package: 24-pin SSOP (0.209" body width, 0.025" pitch), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply | 3.0–5.25 V main supply for core and I/O; decoupling required per layout guidelines |
| VSS | Ground reference | Common return path for analog/digital domains; separate AGND/DGND not implemented |
| XIN/XOUT | External crystal oscillator terminals | Supports 32.768 kHz crystal for precision timing; optional when using internal oscillator |
| P0[0]–P0[7] | Port 0 bidirectional I/O | Schmitt-trigger inputs, 25 mA logic output drive, interrupt-on-change enabled per pin |
| P1[0]–P1[7] | Port 1 bidirectional I/O | Same electrical characteristics as P0; routed to analog modulator and comparator bus |
| P2[0]–P2[7] | Port 2 bidirectional I/O | Includes dedicated pins for ISSP™ programming (SDA/SCL) and reset (XRES) |
| VBAT | Backup supply input | Enables RTC retention during main power loss; connects to coin cell or supercapacitor |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Array | 12 independent analog PSoC blocks enable simultaneous 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 |
| Flexible Clocking | Internal 24/48 MHz oscillator eliminates need for external crystal in cost-sensitive designs |
| Low-Voltage Detection | User-configurable threshold voltages trigger reset or interrupt before brownout affects analog accuracy |
| EEPROM Emulation | Up to 2,304 bytes of nonvolatile storage emulated in Flash for parameter retention across power cycles |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Compact environmental monitoring node measuring temperature, humidity, and pressure with local signal conditioning and wireless transmission. IC Role / Device Role / Timing Role: Central mixed-signal controller performing sensor excitation, ΔΣ ADC acquisition, digital filtering, and UART-based data framing. Use Value: Eliminates discrete op-amps, ADCs, and microcontroller peripherals-reducing BOM count by ≥7 components while maintaining 11-bit measurement resolution. | Use Scenario: Brushless DC motor commutation module with hall-effect feedback, current sensing, and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Real-time motor controller generating synchronized three-phase PWM with deadband, reading analog current feedback, and managing fault interrupts. Use Value: Enables precise 12-bit current measurement and sub-microsecond PWM edge alignment using on-chip analog synchronization and digital block coordination. |
| Programmable Power Supply Monitor | Legacy Bus Interface Adapter |
Use Scenario: Standalone power rail supervisor for telecom equipment verifying +3.3 V, +5 V, and -48 V supplies with programmable thresholds and latched fault reporting. IC Role / Device Role / Timing Role: Multi-channel voltage monitor using PGA and incremental ADC to scale and digitize diverse rail voltages. Use Value: Supports 3 independent rail measurements with <±1% accuracy over temperature using internal voltage reference and calibration registers. | Use Scenario: Protocol bridge converting RS-232 serial commands into LIN bus frames for automotive body electronics retrofit. IC Role / Device Role / Timing Role: Dual-protocol transceiver implementing UART physical layer and LIN protocol stack in firmware with timer-based bit timing. Use Value: Achieves LIN 1.3 compliance with <1% baud rate error using internal oscillator trimmed via PSoC Designer™ calibration wizard. |
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 |
|---|---|---|---|
| CY8C26643-24PXI | 16 KB Flash, 12-bit SAR ADC option, additional digital PSoC block | Higher code density and faster conversion for complex control loops | Select when >8 KB Flash or SAR ADC performance is required |
| CY8C27443-24PVXI | Newer PSoC 3 generation, 8051 core, 32 KB Flash, USB interface | USB host/device capability and enhanced debug features | Select for new designs requiring USB connectivity or modern toolchain support |
Compared with CY8C26443-24PXI, CY8C26643 offers expanded memory and ADC flexibility for larger firmware, while CY8C27443 provides architectural modernization and USB-but requires migration from PSoC Designer™ to PSoC Creator™ and new qualification effort.
Availability
CY8C26443-24PXI is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, programmable power supply monitors, and legacy bus interface adapters requiring stable component supply across extended product lifecycles.
Supply support for CY8C26443-24PXI 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 for industrial, automotive, and consumer markets.
CY8C26443 belongs to the PSoC 1 family-designed specifically to replace discrete analog and digital peripheral ICs with a single configurable chip for cost-sensitive, medium-complexity embedded control applications.
FAQ
Is CY8C26443-24PXI still recommended for new designs?
No. Cypress explicitly marks this device as "Not Recommended for New Designs" in its official documentation, advising migration to the CY8C27xxx series (PSoC 3) or later generations. However, it remains supported for legacy production and repair, with full datasheet, PSoC Designer™ toolchain, and application note availability through Infineon's archived resources.
What development tools are required to program CY8C26443-24PXI?
The official tool is PSoC Designer™ v5.4 (last supported version), which provides graphical User Module selection, automatic register configuration, and ISSP™ programming via MiniProg1 or MiniProg3 programmers. No third-party IDEs or open-source toolchains support this silicon revision; GCC or Keil toolchains are incompatible with the M8C core.
Does CY8C26443-24PXI support true hardware UART with FIFO or auto-baud?
No. Its UART implementation is software-emulated within digital PSoC blocks and lacks hardware FIFO, auto-baud detection, or fractional baud rate generators. Maximum reliable baud rate is 115.2 kbps at 24 MHz with tight timing constraints; flow control must be implemented in firmware using GPIO handshaking.
Can the analog PSoC blocks perform simultaneous sampling across multiple channels?
Yes-via analog synchronization logic that aligns sample clocks across up to four analog PSoC blocks. This enables coherent multi-channel acquisition (e.g., current + voltage + temperature) with <10 ns skew, critical for motor phase current reconstruction and power quality analysis.
CY8C26443-24PXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-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:
- 24
- Program Memory Size:
- 16KB (16K 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:
CY8C26443-24PXI FAQ
1.How can I place an order for CY8C26443-24PXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C26443-24PXI 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 CY8C26443-24PXI reliable?
The price and inventory of CY8C26443-24PXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C26443-24PXI is usually 5 days.
3.What payment methods are accepted for CY8C26443-24PXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C26443-24PXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C26443-24PXI?
CY8C26443-24PXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C26443-24PXI 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 CY8C26443-24PXI?
For technical support, including CY8C26443-24PXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C26443-24PXI requirements.
6.How does Aetrix verify that CY8C26443-24PXI is sourced from the original manufacturer or authorized distributors?
All CY8C26443-24PXI 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 CY8C26443-24PXI meets industry standards.
7.What is the process for return or replacement of CY8C26443-24PXI?
All CY8C26443-24PXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C26443-24PXI, 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 CY8C26443-24PXI part is unused and in its original packaging.
Return procedure for CY8C26443-24PXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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