My Inquiry
My Account
Infineon Technologies CY8C25122-24PXI
- Part No.:
- CY8C25122-24PXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
CY8C25122-24PXI.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,974
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C25122-24PXI 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 up to 11-bit Delta-Sigma ADC and 9-bit DAC), and 8 digital PSoC blocks (supporting PWM, UART, SPI, CRC). It operates from 3.0–5.25 V at up to 24 MHz and targets embedded sensor interface and mixed-signal control applications.
For engineers reviewing the CY8C25122-24PXI datasheet, CY8C25122-24PXI pinout, CY8C25122-24PXI application, or CY8C25122-24PXI equivalent, key selection criteria include on-chip analog configurability, ISSP™ in-system programming support, 24 MHz CPU speed with hardware multiply/accumulate, and -40°C to +85°C industrial temperature operation.
Technical Context
The device implements a user-configurable analog/digital array architecture where peripheral functionality is defined at design time via PSoC Designer software-not fixed in silicon. Analog blocks support reconfigurable topologies including delta-sigma ADCs, programmable gain amplifiers, and differential comparators, all sharing a common analog reference and clocking system.
Digital blocks provide event timing, real-time clocks, PWM with deadband, full-duplex UART, and SPI master/slave modes-all synchronized to a flexible clock tree with internal 24/48 MHz oscillator (±2.5%), optional 32.768 kHz crystal input, and PLL-based frequency synthesis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture with 24 MHz max clock and hardware 8×8 multiply/32-bit 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 PSoC blocks supporting ADC (up to 11-bit ΔΣ), DAC (up to 9-bit), PGA, filters, comparators |
| Digital Blocks | 8 digital PSoC blocks providing timers, UART, SPI, CRC, and PWM with deadband generation |
| 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
CY8C25122-24PXI is housed in a 28-pin SOIC package (body width 300 mil, JEDEC MS-012AC) with 24 I/O pins, power/ground, reset, and clock inputs. All I/O pins support Schmitt-trigger TTL input thresholds, programmable drive strength (up to 25 mA logic output / 40 mA analog output), pull-up/pull-down resistors, and interrupt-on-change capability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply | 3.0–5.25 V main supply for core, analog, and digital blocks |
| VSS | Ground reference | Common return path for all internal circuitry and I/O drivers |
| XRES | Active-low reset input | Asynchronous reset signal; asserted low resets CPU and peripherals |
| XTAL1/XTAL2 | Crystal oscillator terminals | Optional 32.768 kHz crystal connection for precision timing or PLL reference |
| P0[0]–P0[7] | Port 0 bidirectional I/O | 8 general-purpose pins with configurable drive mode, interrupt-on-change, and analog routing capability |
| P1[0]–P1[7] | Port 1 bidirectional I/O | 8 general-purpose pins supporting digital and analog subsystem interconnect |
| P2[0]–P2[7] | Port 2 bidirectional I/O | 8 general-purpose pins with dedicated analog bus routing and comparator inputs |
Key Features
| Feature | Design Value |
|---|---|
| Configurable analog array | 12 independent analog PSoC blocks enable custom ADC/DAC/filter/comparator topologies without external components |
| In-system serial programming (ISSP™) | Field firmware updates via two-wire interface without removing device from PCB |
| Programmable I/O drive modes | Each pin selectable as strong driver (25 mA), open-drain, high-Z, or analog output (40 mA) with internal pull resistors |
| Dedicated analog reference | On-chip voltage reference supports stable analog measurements across supply and temperature variations |
| Low-voltage detection | User-configurable threshold monitoring with interrupt or reset assertion to prevent erratic operation during brownout |
Applications
| Industrial Sensor Interface | Motor Control Feedback |
|---|---|
Use Scenario: Condition monitoring of pressure, temperature, and current sensors in factory automation systems. IC Role / Device Role / Timing Role: Configurable analog front-end digitizing sensor outputs; digital blocks generate PWM for actuator control and UART for HMI communication. Use Value: Single-chip integration eliminates discrete op-amps, ADCs, and microcontroller, reducing BOM count and board area by >40%. | Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and pumps. IC Role / Device Role / Timing Role: Incremental ADC reads hall-effect encoder signals; digital timers generate precise 3-phase PWM with programmable deadband. Use Value: Real-time analog acquisition and deterministic PWM timing ensure <1 µs jitter in commutation timing. |
| Smart Lighting Control | Medical Diagnostic Instrumentation |
Use Scenario: Dimmable LED driver with ambient light sensing and touch-button interface. IC Role / Device Role / Timing Role: Delta-sigma ADC measures photodiode current; digital blocks implement capacitive touch sensing and PWM dimming control. Use Value: On-chip analog resources eliminate external ADC and touch controller ICs while maintaining ±1% dimming linearity. | Use Scenario: Portable blood glucose meter requiring precision analog measurement and low-power operation. IC Role / Device Role / Timing Role: Programmable gain amplifier conditions biosensor signal; 11-bit ΔΣ ADC achieves 16-bit effective resolution with oversampling. Use Value: Integrated analog calibration and EEPROM emulation in Flash enable factory-trimmed offset/gain compensation without external NVM. |
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 |
|---|---|---|---|
| CY8C27443-24PVXI | Upgraded PSoC 1 family with 16 KB Flash, enhanced analog routing, and improved 12-bit SAR ADC performance | Supports higher-resolution sensor interfaces and larger firmware images; requires updated PSoC Designer version | Select when new designs require >8 KB code space or tighter ADC INL (<±0.5 LSB) |
| STM32F030F4P6 | ARM Cortex-M0 MCU with fixed-function peripherals, no configurable analog blocks, 12-bit SAR ADC only | Lacks on-the-fly analog reconfiguration; requires external op-amps or ADCs for complex signal chains | Select when cost sensitivity outweighs analog flexibility and legacy toolchain familiarity is critical |
Compared with CY8C25122-24PXI, CY8C27443-24PVXI offers expanded memory and analog precision for next-gen designs, while STM32F030F4P6 trades configurability for lower unit cost and broader ARM ecosystem support-making it suitable only where analog signal chain complexity is low.
Availability
CY8C25122-24PXI is available at Aetrix Electronics and suitable for industrial sensor interface, motor control feedback, smart lighting control, and portable medical instrumentation requiring stable component supply and long-term lifecycle support.
Supply support for CY8C25122-24PXI 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, founded in 1982 and headquartered in San Jose, California.
CY8C25122 belongs to the PSoC™ 1 family-a line of mixed-signal programmable SoCs designed to replace multiple discrete analog and digital components with a single configurable chip for cost-sensitive, medium-complexity embedded control applications.
FAQ
Is CY8C25122-24PXI 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. The CY8C25122-24PXI remains supported for existing production and legacy repair, but lacks newer features like enhanced analog routing, larger memory, and extended qualification for automotive applications.
What development tools are required to program CY8C25122-24PXI?
PSoC Designer™ 5.4 or later is mandatory for configuration and code generation. Programming requires a MiniProg1 or MiniProg3 programmer/debugger connected via ISSP™ interface. No third-party IDEs or compilers are officially supported-the toolchain is tightly integrated with Cypress's User Module library and hardware abstraction layer.
Does CY8C25122-24PXI support true hardware floating-point arithmetic?
No. The M8C CPU has no floating-point unit. All floating-point operations must be performed in software using library functions provided in PSoC Designer. Fixed-point arithmetic is strongly recommended for real-time control loops due to predictable execution timing and lower resource usage.
Can the analog PSoC blocks operate independently while the CPU is in deep sleep mode?
Yes. Analog blocks-including ADCs, comparators, and filters-can be clocked and operated autonomously using the internal low-speed oscillator or external crystal while the CPU is in Sleep or Deep Sleep mode. Wake-up interrupts can be generated upon analog event completion or threshold crossing, enabling ultra-low-power sensor monitoring.
CY8C25122-24PXI 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:
CY8C25122-24PXI FAQ
1.How can I place an order for CY8C25122-24PXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C25122-24PXI 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 CY8C25122-24PXI reliable?
The price and inventory of CY8C25122-24PXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C25122-24PXI is usually 5 days.
3.What payment methods are accepted for CY8C25122-24PXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C25122-24PXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C25122-24PXI?
CY8C25122-24PXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C25122-24PXI 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 CY8C25122-24PXI?
For technical support, including CY8C25122-24PXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C25122-24PXI requirements.
6.How does Aetrix verify that CY8C25122-24PXI is sourced from the original manufacturer or authorized distributors?
All CY8C25122-24PXI 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 CY8C25122-24PXI meets industry standards.
7.What is the process for return or replacement of CY8C25122-24PXI?
All CY8C25122-24PXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C25122-24PXI, 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 CY8C25122-24PXI part is unused and in its original packaging.
Return procedure for CY8C25122-24PXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C25122-24PXI Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
