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Infineon Technologies CY8C24423A-24PVXA
- Part No.:
- CY8C24423A-24PVXA
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C24423A-24PVXA.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,518
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Product details
Overview
CY8C24423A-24PVXA from Cypress Semiconductor is a PSoC® 1 programmable system-on-chip featuring an M8C 8-bit Harvard-architecture CPU running at up to 24 MHz, 4 KB flash, 256 bytes SRAM, and six configurable analog blocks plus four digital PSoC blocks. It operates from 2.4 V to 5.25 V (or down to 1.0 V with on-chip switch-mode pump), supports industrial temperature range (–40 °C to +85 °C), and integrates I²C, UART, SPI, PWM, ADC (up to 14-bit), and programmable gain amplifiers - deployed in embedded sensor interface and motor control subsystems.
For engineers reviewing the CY8C24423A-24PVXA datasheet, CY8C24423A-24PVXA pinout, CY8C24423A-24PVXA application, or CY8C24423A-24PVXA equivalent, key selection criteria include its 28-pin PDIP package, 24 MHz IMO clock accuracy (±5%), analog block routing flexibility, GPIO drive strength (25 mA sink), and ISSP-based in-system programming capability for rapid firmware iteration in cost-sensitive industrial controls.
Technical Context
The CY8C24423A-24PVXA implements a fixed-function M8C core with interrupt-driven real-time operation, supported by dual-clock domains: a ±5% 24 MHz internal main oscillator (IMO) and a 32 kHz internal low-speed oscillator (ILO) for sleep/WDT. Its global digital and analog interconnects enable dynamic signal routing between four digital blocks and six analog blocks without external logic.
Analog resources include decimator-based ADCs (14-bit max), PGA stages with programmable gain, rail-to-rail comparators, and analog muxing across eight standard GPIO pins. Digital peripherals are built from combinable 8-bit blocks supporting 8–32-bit timers, 8/16-bit PWMs with dead-band, full-duplex UART, and CRC/PRS modules - all configurable via PSoC Designer software.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max - enables deterministic real-time control with 4 MIPS throughput |
| Memory | 4 KB flash (50k erase/write cycles), 256 bytes SRAM, EEPROM emulation - supports field-upgradable firmware and data logging |
| Analog Blocks | Six configurable analog PSoC blocks - provide ADC (14-bit), DAC (9-bit), PGA, filters, and comparators in one chip |
| Digital Blocks | Four 8-bit digital PSoC blocks - combine to form 8–32-bit timers, PWMs, UART, SPI, I²C, CRC, and PRS |
| Operating Voltage | 2.4 V to 5.25 V, or 1.0 V with on-chip SMP - allows direct battery operation (e.g., single Li-ion or 2×AA) |
| Temperature Range | –40 °C to +85 °C - qualified for industrial-grade embedded control environments |
| I/O Drive | 25 mA sink / 10 mA source per GPIO, 8 drive modes - interfaces directly with LEDs, relays, and logic without external buffers |
Pinout & Package
Package: 28-pin plastic dual in-line package (PDIP), 0.600-inch width, lead pitch 0.100 inch - compatible with through-hole prototyping and legacy PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main supply rail (2.4–5.25 V); powers core, analog, and digital systems |
| VSS | Ground reference | Digital and analog common return; requires low-impedance connection to minimize noise coupling |
| P0[0]–P0[7] | Port 0 GPIO | Eight bidirectional pins with analog input capability, interrupt-on-change, and configurable drive modes |
| P1[0]–P1[7] | Port 1 GPIO | Eight bidirectional pins supporting digital peripherals (UART TX/RX, SPI SCLK/MOSI/MISO, I²C SDA/SCL) |
| P2[0]–P2[7] | Port 2 GPIO | Eight pins with four dedicated analog inputs and two 30 mA analog outputs - used for sensor excitation and DAC output |
| XIN/XOUT | External crystal oscillator terminals | Support optional 32.768 kHz crystal for RTC or PLL-referenced 24 MHz clock generation |
| RESET | Active-low reset input | Asynchronous reset pin; internally pulled up; accepts external pushbutton or supervisor IC assertion |
Key Features
| Feature | Design Value |
|---|---|
| In-system serial programming (ISSP) | Enables firmware updates via two-wire interface without removing device from PCB - reduces manufacturing and field service cost |
| Configurable analog routing | Global analog interconnect allows any analog block output to connect to any analog-capable GPIO - eliminates external opamp routing complexity |
| Programmable voltage reference | On-chip precision reference supports stable ADC/DAC operation independent of VDD fluctuations - improves measurement repeatability |
| User-configurable LVD | Low-voltage detection threshold set in firmware (1.62 V to 4.9 V in steps) - triggers safe shutdown before brownout-induced corruption |
| Global digital interconnect | Any digital block output can route to any GPIO or other digital block input - enables custom peripheral synthesis without gate logic |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Standalone temperature/humidity node with analog sensor conditioning and wireless MCU interface. IC Role / Device Role / Timing Role: Signal acquisition hub - digitizes analog sensor outputs, applies PGA gain, runs CRC on telemetry, and formats UART packets. Use Value: Replaces discrete opamps, ADC, and microcontroller with single chip - reduces BOM count and PCB area by >40%. | Use Scenario: Brushless DC motor commutation controller using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Real-time timing engine - generates synchronized 3-phase PWM with dead-band, reads hall sensors via GPIO interrupts, and adjusts duty cycle in closed loop. Use Value: Achieves <1 µs PWM edge jitter using internal 24 MHz IMO - ensures precise phase alignment and reduced acoustic noise. |
| Capacitive Touch Panel Controller | Legacy Protocol Bridge |
Use Scenario: 8-button capacitive touch overlay for HVAC control panel with LED status feedback. IC Role / Device Role / Timing Role: Capacitive sensing front-end - performs CSD (capacitive sigma-delta) measurement, debounces keys, and drives LEDs via GPIO PWM. Use Value: Uses integrated analog blocks for self-calibrating touch detection - eliminates external RC networks and calibration firmware overhead. | Use Scenario: RS-232 to I²C bridge for legacy industrial instruments connecting to modern sensor hubs. IC Role / Device Role / Timing Role: Protocol translator - receives UART commands, parses ASCII frames, and issues I²C register writes to slave sensors. Use Value: Leverages full-duplex UART + multi-master I²C in one die - avoids dual-chip bridge solutions and timing synchronization issues. |
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 |
|---|---|---|---|
| CY8C24223A-24PVXA | Fewer GPIOs (20 vs. 28), no Port 2 analog outputs - lacks two 30 mA analog drivers and four analog inputs | Suitable only for simpler analog I/O count requirements; cannot support dual-sensor excitation or simultaneous DAC outputs | Select when BOM cost reduction is critical and analog output capability is unnecessary |
| CY8C24123A-24PVXA | Reduced memory (2 KB flash, 128 bytes SRAM), no EEPROM emulation - limits firmware size and data retention depth | Not viable for applications requiring over-the-air updates or persistent calibration storage | Choose only for ultra-low-cost, fixed-function implementations with static firmware |
Compared with CY8C24223A-24PVXA and CY8C24123A-24PVXA, the CY8C24423A-24PVXA delivers full analog I/O capability and memory headroom required for field-upgradable sensor nodes - making it the only variant in the CY8C24x23A family supporting both high-resolution ADC and dual analog outputs simultaneously.
Availability
CY8C24423A-24PVXA is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, capacitive touch panels, and legacy protocol bridges requiring stable component supply and long-term manufacturability.
Supply support for CY8C24423A-24PVXA 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) designs programmable mixed-signal ICs for embedded control, offering PSoC architecture since 2002 with focus on system integration and configurability.
The CY8C24x23A product line targets cost-sensitive industrial and consumer applications needing analog + digital integration in compact packages - emphasizing rapid development via PSoC Designer and field-programmable flexibility.
FAQ
Does CY8C24423A-24PVXA support USB connectivity?
No. The CY8C24423A-24PVXA does not include USB physical layer or USB protocol stack hardware. It supports UART, SPI, and I²C for host communication. USB functionality requires external transceivers or migration to PSoC 3/4 families with native USB support.
Can the internal 24 MHz oscillator be used for precise timing-critical applications?
The internal 24 MHz IMO has ±5% accuracy over temperature and voltage. For applications requiring tighter timing tolerance (e.g., audio sampling or synchronous comms), use the optional 32.768 kHz crystal with PLL to generate a crystal-referenced 24 MHz clock - achieving ±20 ppm stability.
Is EEPROM emulation reliable for storing calibration data across power cycles?
Yes. Cypress's flash-based EEPROM emulation uses wear-leveling algorithms and supports 100,000 write cycles per logical address. Calibration data stored in emulated EEPROM retains integrity across power cycles and meets industrial reliability requirements when accessed via PSoC Designer's EEEPROM API.
What debug interfaces are supported during firmware development?
The CY8C24423A-24PVXA supports full-speed in-circuit emulation (ICE) via MiniProg3 or older MiniProg1 programmers. Debug features include complex breakpoints, 128 KB trace memory, and real-time variable watch - all accessible through PSoC Designer IDE without additional hardware.
CY8C24423A-24PVXA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™1 CY8C24xxx
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.25V
- Data Converters:
- A/D 12x14b; D/A 2x9b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C24423A-24PVXA FAQ
1.How can I place an order for CY8C24423A-24PVXA through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C24423A-24PVXA 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 CY8C24423A-24PVXA reliable?
The price and inventory of CY8C24423A-24PVXA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C24423A-24PVXA is usually 5 days.
3.What payment methods are accepted for CY8C24423A-24PVXA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C24423A-24PVXA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C24423A-24PVXA?
CY8C24423A-24PVXA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C24423A-24PVXA 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 CY8C24423A-24PVXA?
For technical support, including CY8C24423A-24PVXA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C24423A-24PVXA requirements.
6.How does Aetrix verify that CY8C24423A-24PVXA is sourced from the original manufacturer or authorized distributors?
All CY8C24423A-24PVXA 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 CY8C24423A-24PVXA meets industry standards.
7.What is the process for return or replacement of CY8C24423A-24PVXA?
All CY8C24423A-24PVXA units undergo pre-shipment inspection (PSI). If there is an issue with CY8C24423A-24PVXA, 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 CY8C24423A-24PVXA part is unused and in its original packaging.
Return procedure for CY8C24423A-24PVXA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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