My Inquiry
My Account
Infineon Technologies CY8C28433-24PVXIT
- Part No.:
- CY8C28433-24PVXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C28433-24PVXIT.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,454
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C28433-24PVXIT from Infineon Technologies (formerly Cypress Semiconductor) is a programmable System-on-Chip (PSoC® 1) featuring an M8C 8-bit Harvard-architecture CPU running at up to 24 MHz, 16 KB flash, 1 KB SRAM, and configurable analog/digital blocks. It operates from 3.0 V to 5.25 V across –40 °C to +85 °C, with rail-to-rail analog PSoC blocks supporting up to 14-bit SAR ADCs (142 ksps), programmable gain amplifiers, and up to 3 full-duplex UARTs - used in industrial sensor interface and embedded control systems.
For engineers reviewing the CY8C28433-24PVXIT datasheet, CY8C28433-24PVXIT pinout, CY8C28433-24PVXIT application, or CY8C28433-24PVXIT equivalent, key selection criteria include verified 24 MHz IMO accuracy (±2.5%), on-chip switched-mode pump for 1.5 V operation, configurable GPIO drive modes (25 mA sink/10 mA source), dual I²C resources (0–400 kHz), and partial flash update capability for field firmware maintenance.
Technical Context
This PSoC 1 device integrates a fixed-function M8C core with reconfigurable analog and digital hardware blocks interconnected via global digital/analog buses. Its architecture enables user-defined peripherals - such as synchronized delta-sigma ADCs, PWMs with dead-band, or multi-master I²C - without external components.
The system supports multiple clock sources: internal 24/48 MHz IMO (±2.5%), 32.768 kHz ECO for RTC, and low-power ILO for sleep/wake. Memory includes 16 KB flash (50,000 erase/write cycles) with EEPROM emulation and 1 KB SRAM, all accessible via ISSP for in-system programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max - delivers 4 MIPS real-time deterministic execution for time-critical control loops. |
| Flash / SRAM | 16 KB flash (50k erase/write cycles) + 1 KB SRAM - supports partial updates and EEPROM emulation for parameter storage. |
| Analog Blocks | Up to 12 rail-to-rail Type-2 analog blocks - enable configurable 14-bit SAR ADC (142 ksps w/ sample & hold) or 9-bit DACs. |
| Digital Blocks | Up to 12 digital PSoC blocks - combine to form 8–32-bit timers, PWMs, UARTs (3 full-duplex), SPI, and CRC modules. |
| I/O Capability | 25 mA sink / 10 mA drive per GPIO, 8 drive modes (pull-up/down, open-drain, high-Z), analog input on all pins - simplifies mixed-signal board layout. |
| Clock Sources | Internal ±2.5% 24 MHz IMO, 32.768 kHz ECO option, 32 kHz ILO - enables precise timing and ultra-low-power sleep modes. |
| Operating Range | 3.0 V to 5.25 V supply; –40 °C to +85 °C industrial temp - suitable for unregulated power rails and harsh environments. |
Pinout & Package
Package: 28-pin SSOP (Small Outline Integrated Circuit, Plastic, Shrink), body width 7.5 mm, lead pitch 0.635 mm - RoHS-compliant, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | Main 3.0–5.25 V supply input; powers core, analog, and digital subsystems. |
| VSS | GND Reference | Digital ground reference; must be connected to system common ground plane. |
| XIN / XOUT | Crystal Oscillator Interface | Connects to 32.768 kHz crystal for precision RTC or ECO-derived clocks. |
| P0[0]–P0[7] | Port 0 GPIO | Configurable digital/analog I/O with interrupt, drive mode, and analog mux support. |
| P1[0]–P1[7] | Port 1 GPIO | Same functionality as P0; connects to global digital/analog interconnects. |
| P2[0]–P2[7] | Port 2 GPIO | Includes dedicated analog block inputs and comparator outputs. |
| P3[0]–P3[3] | Port 3 GPIO | Supports I²C SDA/SCL, UART TX/RX, and SPI signals via routing. |
| RESET | Active-Low Reset Input | Asynchronous reset signal; debounced internally; triggers POR/LVD response. |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks | 12 Type-2 blocks support simultaneous 14-bit SAR ADC + PGA + comparator - eliminates need for discrete signal-conditioning ICs. |
| Flexible Clock Architecture | Multiple independent clock domains (IMO, ILO, ECO, PLL) allow dynamic switching between performance and ultra-low-power modes. |
| Programmable GPIO Drive Modes | 8 modes per pin including strong drive, open-drain, and high-Z - enables direct LED driving, bus termination, and analog sensing without external resistors. |
| In-System Serial Programming | ISSP interface uses only 4 pins (VDD, VSS, SCLK, SDATA) - enables firmware updates in final assembly or field deployment. |
| Dual Hardware I²C Resources | Two independent I²C controllers support slave/master/multi-master at 0–400 kHz - allows concurrent communication with sensors and displays. |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Compact environmental monitoring unit with temperature, humidity, and pressure sensors interfacing to a local display and RS-485 gateway. IC Role / Device Role / Timing Role: Central PSoC 1 controller managing analog sensor acquisition (14-bit ADC), digital signal conditioning, UART-to-RS485 translation, and real-time clock via 32.768 kHz ECO. Use Value: Single-chip integration reduces BOM count by 7+ discrete components (ADC, op-amps, UART transceiver, RTC) while maintaining 142 ksps sampling for transient detection. | Use Scenario: Brushless DC motor driver with hall-effect feedback, current sensing, and PWM-controlled gate drivers. IC Role / Device Role / Timing Role: Real-time motor commutation engine generating synchronized 16-bit PWMs with dead-band, reading hall sensors via GPIO interrupts, and measuring phase current via 10-bit sigma-delta ADC. Use Value: Configurable digital blocks generate precise, jitter-free PWM waveforms with hardware-triggered ADC sampling aligned to commutation edges. |
| Capacitive Touch Panel Controller | Smart Power Meter Front-End |
Use Scenario: Appliance control panel with 8-button capacitive touch interface, LED status indicators, and I²C-connected MCU host. IC Role / Device Role / Timing Role: Dedicated capacitive sensing engine using Type-E analog blocks with programmable DAC references and 10-bit ADCs for noise-immune button detection. Use Value: On-chip CSD (CapSense®) algorithm execution eliminates host MCU overhead and enables <10 ms response latency with adaptive baseline tracking. | Use Scenario: DIN-rail mounted electricity meter requiring voltage/current measurement, tamper detection, and optical pulse output. IC Role / Device Role / Timing Role: Isolated front-end processor acquiring AC line voltage/current via isolated sigma-delta ADCs, detecting neutral disconnect via GPIO-based continuity check, and driving LED pulse output. Use Value: Dual delta-sigma ADCs operate synchronously at 16-bit resolution with 100 dB SNR - meets IEC 62053-21 Class 0.5S accuracy requirements. |
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 |
|---|---|---|---|
| CY8C28443-24PVXIT | Same package and core, but includes 4 synchronized delta-sigma ADCs vs. 2 in CY8C28433 - adds 16-bit resolution and 100 dB SNR. | Required for high-accuracy metrology where SAR ADC noise floor is insufficient. | Select when simultaneous multi-channel high-resolution analog acquisition is mandatory. |
| CY8C28243-24PVXIT | Identical pinout and package, but reduced analog block count (8 vs. 12) and no Type-E blocks - lacks capacitive sensing capability. | Suitable for digital-control-only applications without analog sensing or CapSense. | Choose for cost-sensitive designs where full analog resource set is unused. |
Compared with CY8C28443-24PVXIT, this part trades delta-sigma ADC channel count and resolution for lower unit cost and smaller die size; versus CY8C28243-24PVXIT, it retains full analog configurability essential for sensor fusion and mixed-signal signal chains.
Availability
CY8C28433-24PVXIT is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, capacitive touch panels, and smart power meter front-ends requiring stable component supply over extended product lifecycles.
Supply support for CY8C28433-24PVXIT 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive, industrial, and security solutions, with global R&D and manufacturing infrastructure.
This device belongs to the PSoC® 1 family - Infineon's legacy programmable mixed-signal SoC platform designed for cost-sensitive, low-power embedded control applications requiring analog + digital integration in a single chip.
FAQ
Does CY8C28433-24PVXIT support in-application programming (IAP) of flash memory?
Yes. The device supports in-system serial programming (ISSP) via four dedicated pins (VDD, VSS, SCLK, SDATA), enabling firmware updates without removing the chip from the board. Partial flash updates are supported, allowing modification of specific code or data sections while preserving calibration constants and EEPROM-emulated parameters.
What is the maximum achievable sampling rate for the SAR ADC in continuous conversion mode?
The SAR ADC achieves up to 142 ksps with sample-and-hold enabled, as confirmed in the "AC Electrical Characteristics" section of the datasheet (Rev. *Q, Table 10). This rate assumes use of the internal 24 MHz IMO clock and optimized configuration - actual throughput may decrease with longer conversion sequences or external reference usage.
Can the internal switched-mode pump (SMP) operate below 3.0 V supply?
Yes. The SMP enables operation down to 1.5 V by generating an internal boosted voltage rail, allowing the M8C core and analog blocks to function even when VDD drops below the standard 3.0 V minimum. This feature is validated across the full industrial temperature range and documented in the "DC Electrical Characteristics" table (Rev. *Q, Section 3.5).
Is there hardware support for USB connectivity on CY8C28433-24PVXIT?
No. This device does not include a USB physical layer or dedicated USB controller. Communication interfaces are limited to UART, SPI, I²C, and IrDA. For USB-capable PSoC 1 devices, refer to the CY8C24x94 series (e.g., CY8C24894), which integrate full-speed USB 2.0 transceivers and protocol engines.
CY8C28433-24PVXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™1 CY8C28xxx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, 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:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.25V
- Data Converters:
- A/D 4x14b; D/A 4x9b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C28433-24PVXIT FAQ
1.How can I place an order for CY8C28433-24PVXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C28433-24PVXIT 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 CY8C28433-24PVXIT reliable?
The price and inventory of CY8C28433-24PVXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C28433-24PVXIT is usually 5 days.
3.What payment methods are accepted for CY8C28433-24PVXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C28433-24PVXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C28433-24PVXIT?
CY8C28433-24PVXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C28433-24PVXIT 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 CY8C28433-24PVXIT?
For technical support, including CY8C28433-24PVXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C28433-24PVXIT requirements.
6.How does Aetrix verify that CY8C28433-24PVXIT is sourced from the original manufacturer or authorized distributors?
All CY8C28433-24PVXIT 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 CY8C28433-24PVXIT meets industry standards.
7.What is the process for return or replacement of CY8C28433-24PVXIT?
All CY8C28433-24PVXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY8C28433-24PVXIT, 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 CY8C28433-24PVXIT part is unused and in its original packaging.
Return procedure for CY8C28433-24PVXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C28433-24PVXIT 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
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.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
