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Infineon Technologies CY8C26643-24PVXI
- Part No.:
- CY8C26643-24PVXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY8C26643-24PVXI.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,121
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Product details
Overview
CY8C26643-24PVXI from Cypress Semiconductor is a programmable System-on-Chip (PSoC™) integrating an M8C 8-bit Harvard-architecture CPU, 16 KB Flash, 256 bytes SRAM, 12 configurable analog PSoC blocks (including up to 11-bit Delta-Sigma ADC and 9-bit DAC), and 8 digital PSoC blocks (supporting PWM, UART, SPI, CRC). It operates at up to 24 MHz with supply voltage from 3.0 V to 5.25 V and targets embedded control systems requiring mixed-signal reconfigurability in space-constrained industrial sensors.
For engineers reviewing the CY8C26643-24PVXI datasheet, CY8C26643-24PVXI pinout, CY8C26643-24PVXI application, or CY8C26643-24PVXI equivalent, key selection criteria include on-chip analog block configurability, ISSP™ in-system programming support, 24 MHz clock tolerance, -40°C to +85°C operating range, and compatibility with PSoC Designer™ v4.x toolchain for GUI-based peripheral synthesis.
Technical Context
The CY8C26643-24PVXI implements a fully static CMOS architecture with dual-clock domains: a high-speed system clock (up to 24 MHz derived from internal oscillator or external crystal) and a low-speed watchdog/sleep clock. Its analog subsystem uses switch-capacitor and continuous-time PSoC blocks, each independently configurable via register-controlled routing matrices.
Digital functionality is implemented through eight user-programmable digital PSoC blocks supporting timer/PWM generation, full-duplex UART communication, and SPI master/slave operation - all synchronized to the same system clock domain and accessible via memory-mapped I/O registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture with 24 MHz max frequency and hardware multiply/accumulate |
| Flash Memory | 16 KB program storage with 50,000 erase/write cycles and partial update capability |
| SRAM | 256 bytes data memory for runtime variables and stack operations |
| Analog Blocks | 12 configurable analog PSoC blocks supporting Delta-Sigma ADC (11-bit), incremental ADC (12-bit), DAC (9-bit), PGA, and filters |
| Digital Blocks | 8 programmable digital PSoC blocks enabling PWM, UART, SPI, CRC, and event timing functions |
| Operating Voltage | 3.0 V to 5.25 V supply; supports down to 1.0 V using on-chip switch-mode voltage pump |
| Temperature Range | -40°C to +85°C industrial grade operation without derating |
Pinout & Package
Package: 28-pin SOIC (Small Outline Integrated Circuit), body width 3.9 mm, lead pitch 1.27 mm, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Connects to 3.0–5.25 V regulated supply; powers core logic and analog blocks |
| VSS | Ground reference | Common return path for all digital and analog circuits; requires low-impedance connection |
| XIN / XOUT | External crystal oscillator terminals | Supports optional 32.768 kHz crystal for precision timing or PLL reference |
| RESET | Active-low reset input | Asynchronous reset signal; internal pull-up enables reset release on power-up |
| P0[0]–P0[7] | General-purpose I/O port 0 | Configurable as Schmitt-trigger inputs, TTL outputs (25 mA sink/source), or analog inputs |
| P1[0]–P1[3] | General-purpose I/O port 1 | Supports interrupt-on-change and analog output drive up to 40 mA for sensor excitation |
| SWD | Serial Wire Debug interface | Two-pin debug interface used by MiniProg programmer for ISSP™ and real-time debugging |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Array | 12 independent analog PSoC blocks enable on-the-fly reconfiguration of ADC/DAC/filter topologies without hardware change |
| In-System Serial Programming | ISSP™ allows field firmware updates via SWD pins without removing device from PCB |
| Programmable Clock Sources | Internal 24/48 MHz oscillator (±2.5%) eliminates need for external crystal in cost-sensitive designs |
| EEPROM Emulation | Up to 2,304 bytes of nonvolatile parameter storage emulated in Flash with wear-leveling support |
| Low-Voltage Detection | User-configurable threshold voltages trigger reset or interrupt before brownout affects analog accuracy |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Compact environmental monitoring node measuring temperature, humidity, and pressure with local signal conditioning and wireless telemetry prep. IC Role / Device Role / Timing Role: Central mixed-signal controller performing analog front-end acquisition, digital filtering, and UART-based protocol framing. Use Value: Eliminates discrete op-amps, ADCs, and microcontroller, reducing BOM count by ≥7 components while maintaining 12-bit effective resolution. | Use Scenario: Brushless DC motor driver board requiring closed-loop current sensing, PWM generation, and fault reporting. IC Role / Device Role / Timing Role: Real-time motor controller executing commutation logic, sampling current shunt signals via Delta-Sigma ADC, and generating synchronized 3-phase PWM with deadband. Use Value: Achieves <1 µs PWM edge jitter and 100 kHz current loop bandwidth using on-chip analog comparators and digital timers. |
| Smart HVAC Actuator | Portable Medical Instrument |
Use Scenario: Battery-powered damper actuator with position feedback, thermal compensation, and RS-485 command interface. IC Role / Device Role / Timing Role: Low-power system controller managing sleep/wake cycles, analog sensor calibration, and half-duplex UART-to-RS485 translation. Use Value: Enables 5-year battery life via deep-sleep mode (1 µA typical) and on-chip voltage reference stability over temperature. | Use Scenario: Handheld pulse oximeter requiring analog front-end for photodiode signal amplification and synchronous demodulation. IC Role / Device Role / Timing Role: Precision analog signal processor implementing transimpedance amplification, correlated double sampling, and LED drive timing control. Use Value: Delivers 92 dB SNR at 100 Hz using programmable gain amplifier and switched-capacitor filter blocks configured in anti-aliasing topology. |
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 |
|---|---|---|---|
| CY8C26443-24PVXI | 12 KB Flash, 12 analog + 8 digital PSoC blocks, identical package and pinout | Limited program memory reduces firmware complexity; suitable for fixed-function sensor nodes | Select when firmware size ≤12 KB and no EEPROM emulation required |
| CY8C27443-24PVXI | Newer silicon revision (Rev. D+), enhanced ESD rating (±4 kV HBM), 24 KB Flash, same peripheral count | Improved robustness in noisy industrial environments; supports larger firmware and secure boot features | Select for new designs requiring extended lifecycle support and higher reliability certification |
Compared with CY8C26443-24PVXI, the CY8C26643-24PVXI provides 4 KB additional Flash for complex state machines and calibration tables; compared with CY8C27443-24PVXI, it lacks updated ESD protection and secure boot but maintains full backward compatibility in PSoC Designer™ projects.
Availability
CY8C26643-24PVXI is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, smart HVAC actuators, and portable medical instruments requiring stable component supply across multi-year production cycles.
Supply support for CY8C26643-24PVXI 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 CY8C26xxx PSoC™ family was designed to replace discrete analog/digital components with a single configurable chip for cost-sensitive, medium-complexity embedded control applications.
FAQ
Is CY8C26643-24PVXI supported in current PSoC Designer versions?
Yes, CY8C26643-24PVXI is fully supported in PSoC Designer™ v4.40 and earlier. While newer PSoC 3/4/5LP devices use PSoC Creator™, legacy CY8C26xxx projects remain maintainable with v4.40, including full analog/digital block configuration, code generation, and ISSP™ programming.
Does CY8C26643-24PVXI support true hardware UART with automatic baud rate detection?
No. The digital PSoC blocks implement UART via firmware-driven bit-banging or timer-based state machines. Hardware-assisted UART is not present; however, dedicated digital blocks provide full-duplex operation with programmable baud rates up to 115.2 kbps and automatic start/stop bit handling.
Can the analog PSoC blocks perform simultaneous sampling on multiple channels?
Not natively. Each analog PSoC block operates independently, and the Delta-Sigma ADC supports only one active channel at a time. Simultaneous sampling requires external analog multiplexing or sequential acquisition with tight timing control using digital block triggers.
What is the maximum achievable resolution for the incremental ADC in CY8C26643-24PVXI?
The incremental ADC achieves up to 12-bit effective resolution at 100 Hz output rate, verified per device family datasheet Rev. *C. Resolution degrades to 10 bits at 1 kHz due to reduced oversampling ratio, and the block supports programmable conversion speed versus noise trade-offs via configuration registers.
CY8C26643-24PVXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-BSSOP (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:
- 44
- 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:
- Surface Mount
- Supplier Device Package:
CY8C26643-24PVXI FAQ
1.How can I place an order for CY8C26643-24PVXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C26643-24PVXI 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 CY8C26643-24PVXI reliable?
The price and inventory of CY8C26643-24PVXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C26643-24PVXI is usually 5 days.
3.What payment methods are accepted for CY8C26643-24PVXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C26643-24PVXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C26643-24PVXI?
CY8C26643-24PVXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C26643-24PVXI 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 CY8C26643-24PVXI?
For technical support, including CY8C26643-24PVXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C26643-24PVXI requirements.
6.How does Aetrix verify that CY8C26643-24PVXI is sourced from the original manufacturer or authorized distributors?
All CY8C26643-24PVXI 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 CY8C26643-24PVXI meets industry standards.
7.What is the process for return or replacement of CY8C26643-24PVXI?
All CY8C26643-24PVXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C26643-24PVXI, 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 CY8C26643-24PVXI part is unused and in its original packaging.
Return procedure for CY8C26643-24PVXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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