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Infineon Technologies CY8C25122-24PI
- Part No.:
- CY8C25122-24PI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
CY8C25122-24PI.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,957
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Product details
Overview
CY8C25122-24PI from Cypress Semiconductor is a programmable System-on-Chip (PSoC™) integrating an M8C 8-bit Harvard architecture CPU, 4 KB Flash program memory, 256 bytes SRAM, configurable analog and digital peripheral blocks, and precision internal oscillators. It operates at up to 24 MHz, supports 3.0–5.25 V supply, and delivers mixed-signal flexibility for embedded control in industrial sensors and motor interfaces.
For engineers reviewing the CY8C25122-24PI datasheet, CY8C25122-24PI pinout, CY8C25122-24PI application, or CY8C25122-24PI equivalent, this device enables rapid system integration via PSoC Designer GUI-based peripheral configuration-eliminating custom analog/digital circuit design while retaining full firmware control over ADCs, DACs, PWMs, UARTs, and programmable gain amplifiers.
Technical Context
The CY8C25122-24PI implements a fully static CMOS PSoC architecture with 12 configurable analog blocks (supporting ΔΣ, SAR, and incremental ADCs up to 11-bit, 9-bit DACs, PGA, and differential comparators) and 8 digital blocks (including timers, CRC modules, full-duplex UARTs, and SPI masters/slaves). Its internal 24/48 MHz oscillator achieves ±2.5% accuracy without external components.
It features programmable I/O with Schmitt-trigger inputs, 25 mA logic drive, 40 mA analog output capability, interrupt-on-change, and flexible clock routing between analog and digital subsystems. The device supports ISSP™ for in-system serial programming and partial Flash updates with EEPROM emulation up to 2,304 bytes.
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 | 4 KB program storage with 50,000 erase/write cycles and partial update support |
| SRAM | 256 bytes data memory for runtime variables and stack operations |
| Analog Blocks | 12 user-configurable analog PSoC blocks supporting ADCs (ΔΣ/SAR/incremental), DACs, PGAs, filters, and comparators |
| Digital Blocks | 8 programmable digital PSoC blocks including timers, UARTs, SPI, and CRC modules |
| 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 |
Pinout & Package
Packaged in a 28-pin plastic DIP (Dual In-line Package) with 0.6-inch body width and standard through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | Main positive supply input (3.0–5.25 V); powers core, analog, and digital blocks |
| VSS | Ground | Primary reference ground for all circuits; must be low-impedance connection |
| XRES | Reset Input | Active-low asynchronous reset; internal pull-up ensures reliable startup without external resistor |
| XTAL1/XTAL2 | Clock Input/Output | Connects to optional 32.768 kHz crystal for precision timing or PLL reference |
| P0[0]–P0[7] | General-Purpose I/O | Configurable digital/analog pins with Schmitt-trigger inputs, 25 mA drive, and interrupt-on-change |
| P1[0]–P1[7] | General-Purpose I/O | Same functionality as Port 0; supports analog routing to internal PSoC blocks |
| P2[0]–P2[3] | General-Purpose I/O | Additional configurable I/O; P2[0]/P2[1] support dedicated analog comparator bus connections |
| VBAT | Battery Backup Input | Provides backup power path for RTC/sleep timer during main supply loss |
Key Features
| Feature | Design Value |
|---|---|
| GUI-Based Peripheral Configuration | PSoC Designer software enables drag-and-drop placement of pre-verified analog/digital User Modules (e.g., 11-bit ADC, 9-bit DAC, PWM) without HDL or schematic entry |
| In-System Serial Programming (ISSP™) | Enables field firmware updates via two-wire interface without removing device from PCB |
| Programmable Analog Front-End | On-chip PGA, filters, and comparators eliminate external signal conditioning components for sensor interfacing |
| Flexible Clock Architecture | Internal 24/48 MHz oscillator ±2.5%, plus optional 32.768 kHz crystal input for precise timing and PLL synchronization |
| EEPROM Emulation | 2,304 bytes of non-volatile parameter storage implemented in Flash with wear-leveling and atomic write support |
Applications
| Industrial Sensor Interface | Motor Control Feedback |
|---|---|
Use Scenario: Condition and digitize signals from RTDs, thermocouples, and bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Configurable analog front-end performs PGA gain adjustment, low-pass filtering, and 11-bit ΔΣ ADC conversion; digital blocks handle UART communication to PLC. Use Value: Eliminates discrete op-amp, filter, and ADC ICs while enabling calibration and linearization in firmware. | Use Scenario: Monitor rotor position and current in BLDC motor drives using Hall-effect sensors and shunt resistors. IC Role / Device Role / Timing Role: Digital PSoC blocks generate synchronized PWM with deadband; analog blocks measure phase currents via 8-bit SAR ADC and compare against thresholds. Use Value: Single-chip solution replaces MCU + gate driver + analog monitor, reducing BOM count and layout complexity. |
| Smart Lighting Control | Home Appliance UI |
Use Scenario: Implement dimming, color mixing, and ambient light compensation in LED lighting fixtures. IC Role / Device Role / Timing Role: 9-bit DAC drives LED current sinks; incremental ADC reads ambient light sensor; PWM blocks modulate RGB channels at >1 kHz. Use Value: Achieves flicker-free dimming and automatic white-point correction without external DAC or PWM controllers. | Use Scenario: Manage touch buttons, display backlight, and temperature feedback in microwave ovens and washing machines. IC Role / Device Role / Timing Role: Capacitive sensing User Module detects button press; analog blocks read NTC thermistor; digital timers manage cooking cycle sequencing. Use Value: Replaces dedicated capacitive touch controller, temp sensor ADC, and 555-based timers with one reprogrammable IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C27443-24PVXIT | Upgraded PSoC 1 family with 16 KB Flash, 512 bytes SRAM, enhanced analog blocks, and improved ISSP reliability | Supports larger firmware images and more complex analog signal chains (e.g., multi-channel simultaneous sampling) | Recommended for new designs requiring higher memory, extended analog capability, or longer product lifecycle support |
| CY8C3246PVI-122 | PSoC 3 generation with 8051 core, 32 KB Flash, 4 KB SRAM, and integrated USB controller | Enables direct PC connectivity and higher throughput processing but requires migration from PSoC Designer to PSoC Creator toolchain | Preferred when USB interface, larger memory, or 8051 compatibility are required; not drop-in compatible |
Compared with CY8C25122-24PI, CY8C27443-24PVXIT offers scalable memory and analog resources within the same toolchain, while CY8C3246PVI-122 shifts to a different architecture with USB and larger memory-making the former a seamless upgrade and the latter a platform-level redesign decision.
Availability
CY8C25122-24PI is available at Aetrix Electronics and suitable for industrial sensor interface, motor control feedback, smart lighting control, and home appliance UI applications requiring stable component supply and long-term obsolescence management.
Supply support for CY8C25122-24PI 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 fabless semiconductor company specializing in programmable embedded solutions, USB controllers, and memory products.
The CY8C25xxx PSoC 1 family was designed to replace multiple discrete analog and digital components with a single, GUI-configurable mixed-signal SoC targeting cost-sensitive industrial and consumer control applications.
FAQ
Is CY8C25122-24PI still recommended for new designs?
No. Cypress explicitly marks CY8C25122 as "Not Recommended for New Designs" in its official documentation, advising migration to the CY8C27xxx series. This reflects end-of-life planning and limited long-term availability-not functional obsolescence. Legacy designs may continue using it with appropriate lifecycle risk assessment.
What development tools are required for CY8C25122-24PI?
PSoC Designer IDE (v5.4 or earlier) is mandatory for configuration and code generation; it includes pre-verified User Modules for all analog/digital peripherals. Programming requires a MiniProg1 or compatible ISSP programmer. No third-party toolchains support this legacy PSoC 1 architecture.
Does CY8C25122-24PI support USB or CAN interfaces?
No. The CY8C25122-24PI lacks native USB or CAN transceivers or protocol engines. It supports UART, SPI, and I²C for serial communication. Adding USB or CAN requires external PHYs and firmware handling-neither is integrated into the PSoC 1 architecture.
Can CY8C25122-24PI operate below 3.0 V?
Yes-down to 1.0 V-using its on-chip switch-mode voltage pump to boost internal core voltage. However, analog block performance (e.g., ADC accuracy, PGA gain linearity) degrades below 3.0 V, and Flash programming is disabled below 2.4 V per datasheet specifications.
CY8C25122-24PI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- PSOC™1 CY8C25xxx
- 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:
- 6
- Program Memory Size:
- 4KB (4K 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:
CY8C25122-24PI FAQ
1.How can I place an order for CY8C25122-24PI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C25122-24PI 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 CY8C25122-24PI reliable?
The price and inventory of CY8C25122-24PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C25122-24PI is usually 5 days.
3.What payment methods are accepted for CY8C25122-24PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C25122-24PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C25122-24PI?
CY8C25122-24PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C25122-24PI 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 CY8C25122-24PI?
For technical support, including CY8C25122-24PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C25122-24PI requirements.
6.How does Aetrix verify that CY8C25122-24PI is sourced from the original manufacturer or authorized distributors?
All CY8C25122-24PI 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 CY8C25122-24PI meets industry standards.
7.What is the process for return or replacement of CY8C25122-24PI?
All CY8C25122-24PI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C25122-24PI, 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 CY8C25122-24PI part is unused and in its original packaging.
Return procedure for CY8C25122-24PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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