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Infineon Technologies CY8C28433-24PVXI
- Part No.:
- CY8C28433-24PVXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C28433-24PVXI.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,209
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Product details
Overview
CY8C28433-24PVXI 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 reconfigurable analog/digital blocks. It operates from 3.0 V to 5.25 V across –40 °C to +85 °C and integrates up to 14-bit SAR ADCs, dual I²C, three full-duplex UARTs, and programmable GPIO with 25 mA sink capability - used in industrial sensor nodes and embedded control systems.
For engineers reviewing the CY8C28433-24PVXI datasheet, CY8C28433-24PVXI pinout, CY8C28433-24PVXI application, or CY8C28433-24PVXI equivalent, key selection criteria include its 24 MHz M8C core timing accuracy, on-chip switched-mode pump for 1.5 V operation, configurable analog blocks supporting capacitive sensing and precision ADC/DAC, and ISSP-enabled field firmware updates.
Technical Context
This PSoC 1 device implements a fixed-function M8C CPU core with dedicated instruction and data buses, enabling deterministic 4 MIPS throughput at 24 MHz. Its digital system uses up to 12 reconfigurable 8-bit digital blocks connected via global interconnects to support composite peripherals like synchronized PWMs with dead-band or multi-protocol UART/SPI/I²C stacks.
The analog subsystem includes up to 12 rail-to-rail PSoC Blocks offering SAR ADCs (142 ksps, sample-and-hold), delta-sigma ADCs, programmable gain amplifiers, and comparator-DAC reference combinations - all routed through configurable analog muxes and global analog interconnect to any GPIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max clock, 4 MIPS performance |
| Memory | 16 KB flash (50k erase/write cycles), 1 KB SRAM, EEPROM emulation in flash |
| Analog Capabilities | Up to 14-bit SAR ADC (142 ksps), up to 4 delta-sigma ADCs, PGA, comparator with DAC reference |
| Digital Peripherals | Up to 3 full-duplex UARTs, up to 6 half-duplex UARTs, 2 I²C masters/slaves, variable-length SPI |
| GPIO | 25 mA sink / 10 mA source per pin, 8 drive modes, analog input & 30 mA analog output capability |
| Operating Range | 3.0 V–5.25 V supply; –40 °C to +85 °C industrial temperature range |
| Clocks | Internal ±2.5% 24/48 MHz IMO, 32.768 kHz ECO option, internal low-power ILO for sleep/WDT |
Pinout & Package
Package: 28-pin SOIC (SOIC-28), body width 300 mil, JEDEC MS-012AC compliant, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply | 3.0–5.25 V main supply input; powers core, digital, and analog systems |
| VSS | Ground reference | Common return path for all digital and analog circuits; must be low-impedance |
| XIN/XOUT | External crystal oscillator interface | Supports 32.768 kHz crystal for RTC or precise clock generation via PLL |
| P0[0]–P0[7] | Port 0 bidirectional I/O | Configurable GPIO with analog input, interrupt, and 25 mA sink capability |
| P1[0]–P1[7] | Port 1 bidirectional I/O | Same drive/sense features as Port 0; supports analog block routing and digital interconnect |
| SCL/SCL1 | I²C clock lines | Dual hardware I²C interfaces; each supports slave/master/multi-master mode up to 400 kHz |
| SDA/SDA1 | I²C data lines | Independent bidirectional open-drain data paths for two concurrent I²C buses |
| RESET | Active-low reset input | Asynchronous reset signal; also accepts ISSP programming command sequence |
Key Features
| Feature | Design Value |
|---|---|
| Reconfigurable Analog Blocks | 12 rail-to-rail PSoC Blocks enable user-defined ADC/DAC/filter/comparator topologies without external components |
| Switched-Mode Pump (SMP) | On-chip DC-DC converter enables operation down to 1.5 V supply while maintaining full peripheral functionality |
| In-System Serial Programming | ISSP allows field firmware updates via two pins (SCLK/SDATA), eliminating need for dedicated debug headers |
| Capacitive Sensing Support | Four limited-type E analog blocks provide dedicated CSD (CapSense®) channels with noise-immune scanning |
| Flexible Clock Architecture | Multiple independent clock sources (IMO, ILO, ECO, PLL) allow dynamic clock switching for power/performance trade-offs |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC motors using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: PSoC 1 acts as real-time motor controller, executing commutation logic, ADC sampling of current/voltage, and generating synchronized 16-bit PWMs with dead-band. Use Value: Integrated SAR ADC (142 ksps) captures fast current transients; programmable digital blocks generate precise, phase-aligned PWM pairs without external timers. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and gas concentration with local processing and I²C sensor interfacing. IC Role / Device Role / Timing Role: Central sensor hub managing analog front-end conditioning, multi-channel ADC acquisition, and dual I²C bus arbitration for sensor fusion. Use Value: On-chip SMP extends battery life by enabling 1.5 V operation; configurable analog blocks eliminate discrete op-amps and references. |
| Human-Machine Interface | Programmable Power Sequencer |
Use Scenario: Touch-based control panel with slider, buttons, and LED feedback in HVAC or appliance UI. IC Role / Device Role / Timing Role: Capacitive sensing engine with integrated CSD blocks, driving LED indicators via PWM dimming and decoding touch gestures in firmware. Use Value: Four dedicated Type-E analog blocks provide robust, noise-tolerant CapSense® with automatic baseline tracking and auto-calibration. | Use Scenario: Sequenced power-up/down of multi-rail FPGA or ASIC subsystems requiring strict voltage ramp timing and fault monitoring. IC Role / Device Role / Timing Role: Programmable sequencer monitoring supply voltages via analog comparators and controlling enable signals via GPIO with precise delay resolution. Use Value: Configurable digital blocks implement microsecond-accurate delays and state machines; internal voltage references ensure consistent threshold detection across temperature. |
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 |
|---|---|---|---|
| CY8C28443-24PVXI | Same package and core, but includes full 12 analog blocks and 12 digital blocks (CY8C28433 has subset) | Required for designs needing >8 analog resources or dual delta-sigma ADCs simultaneously | Select when full CY8C28x45 subgroup feature set is needed; higher cost and pin-compatible |
| CY8C29466-24PVXI | Higher memory (32 KB flash, 2 KB SRAM), enhanced analog routing, and additional I/O | Targeted at more complex HMI or sensor fusion where code size and analog channel count exceed CY8C28433 limits | Choose for scalability beyond CY8C28433; not drop-in due to different pin mapping and resource layout |
Compared with CY8C28443-24PVXI and CY8C29466-24PVXI, the CY8C28433-24PVXI offers optimal cost-performance balance for mid-complexity embedded control - delivering verified 24 MHz timing, 14-bit ADC fidelity, and CapSense® integration without over-provisioning flash or analog resources.
Availability
CY8C28433-24PVXI is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, human-machine interfaces, and programmable power sequencers requiring stable component supply and long-term lifecycle support.
Supply support for CY8C28433-24PVXI 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 acquired Cypress Semiconductor in 2020 and now owns and supports the full PSoC® portfolio, including legacy PSoC 1 devices. Infineon maintains global manufacturing, quality, and technical support infrastructure.
This device belongs to the PSoC 1 family - a line of programmable mixed-signal SoCs designed for cost-sensitive, low-to-mid complexity embedded control applications where analog flexibility, small footprint, and field-upgradable firmware are essential.
FAQ
What development tools are required to program CY8C28433-24PVXI?
PSoC Designer™ (free Windows IDE) is the official development environment, providing drag-and-drop peripheral configuration, API generation, and full-speed emulation. Programming requires MiniProg1 or MiniProg3 hardware programmers connected via ISSP interface (SCLK/SDATA/RESET/VDD/VSS). No JTAG header is needed.
Does CY8C28433-24PVXI support capacitive touch sensing?
Yes - it includes four Type-E analog blocks optimized for CapSense® functionality, enabling robust self- and mutual-capacitance sensing with built-in noise rejection, automatic calibration, and proximity detection without external components.
Can CY8C28433-24PVXI operate below 3.0 V?
Yes - its integrated Switched-Mode Pump (SMP) allows full functionality down to 1.5 V supply, maintaining 24 MHz CPU operation, analog block accuracy, and GPIO drive strength, making it suitable for single-cell Li-ion or alkaline battery applications.
Is there hardware I²C support, and how many buses are available?
Yes - CY8C28433-24PVXI includes two independent hardware I²C resources (SCL/SDA and SCL1/SDA1), each supporting slave, master, or multi-master modes with clock rates up to 400 kHz and automatic arbitration, ACK/NACK handling, and address matching.
CY8C28433-24PVXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™1 CY8C28xxx
- Packaging:
- Tube
- 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:
CY8C28433-24PVXI FAQ
1.How can I place an order for CY8C28433-24PVXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C28433-24PVXI 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 CY8C28433-24PVXI reliable?
The price and inventory of CY8C28433-24PVXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C28433-24PVXI is usually 5 days.
3.What payment methods are accepted for CY8C28433-24PVXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C28433-24PVXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C28433-24PVXI?
CY8C28433-24PVXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C28433-24PVXI 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 CY8C28433-24PVXI?
For technical support, including CY8C28433-24PVXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C28433-24PVXI requirements.
6.How does Aetrix verify that CY8C28433-24PVXI is sourced from the original manufacturer or authorized distributors?
All CY8C28433-24PVXI 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 CY8C28433-24PVXI meets industry standards.
7.What is the process for return or replacement of CY8C28433-24PVXI?
All CY8C28433-24PVXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C28433-24PVXI, 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 CY8C28433-24PVXI part is unused and in its original packaging.
Return procedure for CY8C28433-24PVXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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