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Infineon Technologies CY8C26443-24PI
- Part No.:
- CY8C26443-24PI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-DIP (0.300", 7.62mm)
- Datasheet:
-
CY8C26443-24PI.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,188
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Product details
Overview
CY8C26443-24PI from Cypress Semiconductor is a programmable System-on-Chip (PSoC™) integrating an M8C 8-bit Harvard architecture CPU, 8KB 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 CY8C26443-24PI datasheet, CY8C26443-24PI pinout, CY8C26443-24PI application, or CY8C26443-24PI equivalent, key selection criteria include on-chip analog configurability, ISSP™ in-system programming support, 24-pin PDIP package compatibility, and legacy PSoC Designer™ toolchain integration.
Technical Context
The device implements a fully static CMOS design with dual-clock domains: a high-speed system clock (up to 24 MHz from internal oscillator or external crystal) and independent analog block clocks derived via programmable dividers. Its PSoC architecture enables runtime reconfiguration of analog signal chains-e.g., cascading a PGA with a ΔΣ ADC and digital filter-without hardware changes.
Digital functionality is implemented through eight user-configurable digital PSoC blocks supporting PWM with deadband, CRC generation, full-duplex UART, and SPI master/slave modes. All I/O pins support Schmitt-trigger inputs, programmable drive strength (25 mA logic / 40 mA analog), and interrupt-on-change capability.
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 variables and stack operations |
| Analog Blocks | 12 user-configurable analog blocks including ΔΣ ADC (11-bit), DAC (9-bit), PGA, filters, comparators |
| Digital Blocks | 8 programmable digital blocks supporting PWM, UART, SPI, timers, and CRC modules |
| 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 |
Pinout & Package
Package: 24-pin Plastic Dual In-line Package (PDIP), 0.600-inch width, through-hole mounting compatible with standard DIP sockets and wave soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | Main 3.0–5.25 V supply input for core and I/O |
| VSS | GND | Digital and analog ground reference |
| XIN/XOUT | Clock Input/Output | Connects to 32.768 kHz crystal for precision timing or bypassed for internal oscillator use |
| P0[0]–P0[7] | General Purpose I/O | 8-bit port with Schmitt-trigger inputs, programmable drive strength, and interrupt-on-change |
| P1[0]–P1[7] | General Purpose I/O | 8-bit port supporting analog input/output routing to PSoC blocks |
| P2[0]–P2[3] | General Purpose I/O | 4-bit port with dedicated analog routing paths to internal ADC/DAC channels |
| RESET | Active-Low Reset | Asynchronous reset input; pulled high internally via weak pull-up resistor |
| SWD | ISSP Programming | Serial programming interface pin used with external programmer for Flash programming |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Array | 12 independent analog blocks enable custom signal chains (e.g., PGA → ΔΣ ADC → digital filter) without external components |
| In-System Serial Programming | ISSP™ allows field firmware updates via SWD pin without removing device from PCB |
| Flexible Clocking | Internal 24/48 MHz oscillator (±2.5%) eliminates need for external crystal in cost-sensitive designs |
| Analog Output Drive | Up to 40 mA analog output current supports direct driving of small actuators or LED bias circuits |
| Low-Voltage Operation | On-chip switch-mode voltage pump enables operation down to 1.0 V, extending battery life in portable systems |
Applications
| Industrial Sensor Interface | Consumer Appliance Control |
|---|---|
Use Scenario: Monitoring temperature, pressure, and humidity in HVAC controllers using resistive and capacitive sensors. IC Role / Device Role / Timing Role: Configurable analog front-end digitizes sensor signals; digital blocks implement PID control loop and RS-485 communication. Use Value: Eliminates discrete op-amps, ADCs, and microcontroller peripherals-reducing BOM count by ≥7 components per node. | Use Scenario: Managing motor speed, user interface feedback, and safety interlocks in washing machines and dishwashers. IC Role / Device Role / Timing Role: Digital PSoC blocks generate precise PWM for universal motor control; analog blocks monitor current sense and door latch status. Use Value: Single-chip solution replaces MCU + gate driver + analog monitor IC, lowering assembly cost and board space. |
| Medical Diagnostic Instrumentation | Automotive Body Electronics |
Use Scenario: Signal conditioning and digitization of ECG/EEG biopotential signals in portable diagnostic devices. IC Role / Device Role / Timing Role: High-precision ΔΣ ADC with programmable gain amplifier captures low-amplitude bio-signals; SRAM buffers real-time waveform data. Use Value: Achieves >80 dB SNR at 1 kSPS using on-chip analog resources-meets IEC 60601-2-27 requirements without external instrumentation-grade components. | Use Scenario: Controlling interior lighting dimming, mirror adjustment, and seat position memory in entry-level vehicles. IC Role / Device Role / Timing Role: Digital blocks manage LIN bus communication and PWM dimming; analog blocks monitor potentiometer wiper positions and supply voltage. Use Value: Supports AEC-Q100 Class 2 qualification path with integrated voltage monitoring and watchdog timer-reducing validation effort. |
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 |
|---|---|---|---|
| CY8C26643-24PI | 16 KB Flash, 512 B SRAM, same PSoC architecture and peripheral set | Supports larger firmware images and deeper data buffering for complex control algorithms | Select when firmware size exceeds 8 KB or extended RAM is required for real-time logging |
| CY8C27443-24PVXI | Newer PSoC 3 generation; 8051 core, 32 KB Flash, enhanced analog performance (12-bit SAR ADC) | Higher code density, improved ADC linearity, and USB interface capability | Choose for new designs requiring USB connectivity or higher analog precision; not pin-compatible |
Compared with CY8C26643-24PI and CY8C27443-24PVXI, the CY8C26443-24PI offers optimal balance of legacy toolchain support, compact footprint, and sufficient memory for mid-complexity sensor nodes-making it suitable for cost-sensitive industrial upgrades where redesign is constrained.
Availability
CY8C26443-24PI is available at Aetrix Electronics and suitable for industrial sensor interface, consumer appliance control, medical diagnostic instrumentation, and automotive body electronics requiring stable component supply across long-lifecycle programs.
Supply support for CY8C26443-24PI 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.
This device belongs to the PSoC™ 1 family-designed specifically to replace discrete analog/digital components with a single configurable chip for cost-sensitive, medium-complexity embedded control applications.
FAQ
Is CY8C26443-24PI still recommended for new designs?
No. Cypress explicitly marks this part as "Not Recommended for New Designs" in its official datasheet (Rev. *C, May 2005), advising migration to the CY8C27xxx series. However, it remains actively supported for legacy production and repair programs with verified toolchain compatibility and documented lifecycle management.
What development tools are required to program CY8C26443-24PI?
The original PSoC Designer™ IDE (v5.x) is mandatory; newer PSoC Creator™ or ModusToolbox™ do not support this generation. Programming requires an ISSP-capable programmer such as the MiniProg1 or CY3210-PSoC Development Kit, connected via SWD pin and VDD/VSS.
Does CY8C26443-24PI support USB or CAN interfaces?
No. This PSoC 1 device lacks native USB or CAN transceivers. Communication is limited to UART, SPI, and I²C (bit-banged via GPIO). USB or CAN functionality would require external PHY chips and additional firmware overhead-unlike later PSoC generations.
Can CY8C26443-24PI operate below 3.0 V?
Yes-down to 1.0 V-using its integrated switch-mode voltage pump (SMVP), which boosts internal core voltage while allowing I/O to remain at reduced supply. This mode supports ultra-low-power sleep states but disables some analog blocks and reduces maximum CPU frequency to 6 MHz.
CY8C26443-24PI 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:
CY8C26443-24PI FAQ
1.How can I place an order for CY8C26443-24PI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C26443-24PI 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 CY8C26443-24PI reliable?
The price and inventory of CY8C26443-24PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C26443-24PI is usually 5 days.
3.What payment methods are accepted for CY8C26443-24PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C26443-24PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C26443-24PI?
CY8C26443-24PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C26443-24PI 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 CY8C26443-24PI?
For technical support, including CY8C26443-24PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C26443-24PI requirements.
6.How does Aetrix verify that CY8C26443-24PI is sourced from the original manufacturer or authorized distributors?
All CY8C26443-24PI 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 CY8C26443-24PI meets industry standards.
7.What is the process for return or replacement of CY8C26443-24PI?
All CY8C26443-24PI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C26443-24PI, 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 CY8C26443-24PI part is unused and in its original packaging.
Return procedure for CY8C26443-24PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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