My Inquiry
My Account
Infineon Technologies CY8C26643-24PVIT
- Part No.:
- CY8C26643-24PVIT
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY8C26643-24PVIT.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,366
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY8C26643-24PVIT from Cypress Semiconductor is a programmable System-on-Chip (PSoC™) integrating an M8C 8-bit Harvard architecture CPU, 16 KB Flash, 256 B SRAM, 12 configurable analog PSoC blocks (including ΔΣ ADC, DAC, PGA, filters), and 8 digital PSoC blocks (PWM, UART, SPI, timers). It operates at up to 24 MHz, supports 3.0–5.25 V supply, and targets embedded control with mixed-signal reconfigurability in industrial sensor interfaces.
For engineers reviewing the CY8C26643-24PVIT datasheet, CY8C26643-24PVIT pinout, CY8C26643-24PVIT application, or CY8C26643-24PVIT equivalent, key selection criteria include on-chip analog block count, ISSP™ programming support, 24 MHz system clock capability, Flash endurance (50,000 cycles), and I/O drive strength (25 mA logic / 40 mA analog).
Technical Context
This device belongs to the legacy PSoC 1 family, featuring user-configurable analog and digital peripheral arrays mapped via PSoC Designer software-not fixed-function hardware. Its analog subsystem includes switch-capacitor and continuous-time blocks supporting precision signal conditioning, while digital blocks implement event timing, serial communication, and CRC generation without external components.
The M8C core executes instructions at up to 24 MHz using register-speed memory transfers and bit-level I/O manipulation. Clocking combines internal 24/48 MHz oscillators (±2.5%), optional 32.768 kHz crystal input for PLL synchronization, and low-power sleep modes managed by dedicated watchdog and sleep timers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture with 24 MHz max clock and bit-manipulation I/O support |
| Flash Memory | 16 KB program storage with 50,000 erase/write cycles and partial update capability |
| SRAM | 256 bytes data memory for runtime variables and stack operations |
| Analog Blocks | 12 user-configurable analog PSoC blocks supporting ΔΣ ADC (11-bit), DAC (9-bit), PGA, and programmable filters |
| Digital Blocks | 8 digital PSoC blocks providing PWM, UART, SPI, CRC, and timer functions with deadband and RTC support |
| Operating Voltage | 3.0–5.25 V nominal; down to 1.0 V using on-chip switch-mode voltage pump for ultra-low-power sleep |
| I/O Drive | 25 mA logic output drive per pin; 40 mA analog output drive capability for direct sensor excitation or actuator control |
Pinout & Package
Package: 28-pin SOIC (Small Outline Integrated Circuit), body width 3.9 mm, JEDEC MS-012AC standard, lead pitch 1.27 mm, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main 3.0–5.25 V supply for core, analog, and I/O domains |
| VSS | Ground reference | Common return path for all internal circuits and external peripherals |
| XIN/XOUT | Crystal oscillator terminals | Supports optional 32.768 kHz crystal for precision timing and PLL reference |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; debounced externally for noise immunity |
| P0[0]–P0[7] | General-purpose I/O port 0 | Configurable as Schmitt-trigger inputs, strong/weak logic outputs, or analog inputs/outputs |
| P1[0]–P1[3] | General-purpose I/O port 1 | Supports interrupt-on-change and analog routing to PSoC blocks; includes dedicated analog reference pins |
| VBAT | Backup power supply | Enables retention of SRAM and real-time clock during main power loss |
| SWD | In-system programming interface | Serial wire debug port for ISSP™ programming and debugging without external programmer hardware |
Key Features
| Feature | Design Value |
|---|---|
| Configurable analog array | 12 independent analog PSoC blocks enable custom signal chains (e.g., sensor front-end + filter + ADC) without external op-amps or converters |
| Programmable digital array | 8 digital PSoC blocks allow dynamic allocation of UART, SPI, PWM, or CRC logic-reducing BOM count and PCB footprint |
| In-System Serial Programming | ISSP™ enables field firmware updates via SWD pin without removing the device from the board |
| Flexible clocking architecture | Internal 24/48 MHz oscillator eliminates need for external crystal in cost-sensitive designs; optional 32.768 kHz crystal supports precise timekeeping |
| Low-voltage operation | On-chip switch-mode voltage pump allows functional operation down to 1.0 V, extending battery life in portable applications |
Applications
| Industrial Sensor Interface | Motor Control Feedback |
|---|---|
Use Scenario: Condition signals from RTDs, thermocouples, or bridge sensors in factory automation systems. IC Role / Device Role / Timing Role: Configurable analog PSoC blocks perform programmable gain amplification, filtering, and ΔΣ conversion; digital blocks handle SPI communication to PLCs. Use Value: Eliminates discrete op-amp, filter, and ADC ICs-reducing component count by ≥4 and improving thermal drift matching across signal chain. | Use Scenario: Monitor rotor position and current in BLDC motor drives using Hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Digital PSoC blocks generate synchronized PWM with deadband; analog blocks condition current-sense amplifier outputs and measure back-EMF. Use Value: Enables closed-loop commutation timing accuracy within ±100 ns using on-chip clock synchronization between analog and digital domains. |
| Smart HVAC Actuator | Medical Instrument Front-End |
Use Scenario: Control damper position and monitor air temperature/humidity in commercial HVAC units. IC Role / Device Role / Timing Role: Integrates temperature ADC, humidity capacitive sensing interface, and PWM-driven stepper motor driver logic in one chip. Use Value: Reduces bill-of-materials by consolidating sensor interface, control logic, and actuation into single 28-pin SOIC package-cutting PCB area by 35% vs. discrete solution. | Use Scenario: Acquire biopotential signals (ECG, EMG) with high common-mode rejection and low noise. IC Role / Device Role / Timing Role: Analog PSoC blocks configure instrumentation amplifier topology, 50/60 Hz notch filter, and 12-bit incremental ADC with programmable sampling rate. Use Value: Achieves >100 dB CMRR and <5 µVpp input-referred noise using matched on-die components-avoiding layout-induced mismatch in discrete implementations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C26443-24PVXIT | Same PSoC 1 architecture but with 8 KB Flash, 12 analog + 8 digital blocks, and identical 28-pin SOIC package | Suitable for lower-code-footprint designs where full 16 KB Flash is unnecessary; same peripheral count and clocking | Select when firmware size ≤8 KB and cost optimization is prioritized over future code expansion headroom |
| CY8C27443-24PVXI | PSoC 3 architecture (8051 core), 32 KB Flash, 24 MHz, enhanced analog performance (12-bit SAR ADC), different pinout (28-pin SSOP) | Requires PCB redesign due to non-pin-compatible package and updated PSoC Creator toolchain; supports higher-resolution acquisition | Choose for new designs needing higher ADC resolution, larger memory, or migration path beyond PSoC 1 end-of-life |
Compared with CY8C26443-24PVXIT, CY8C26643-24PVIT provides double Flash capacity for complex firmware and bootloader separation; versus CY8C27443-24PVXI, it retains legacy toolchain compatibility but lacks SAR ADC and requires no hardware redesign for drop-in replacement in existing 28-pin SOIC layouts.
Availability
CY8C26643-24PVIT is available at Aetrix Electronics and suitable for industrial sensor interface, motor control feedback, smart HVAC actuator, and medical instrument front-end applications requiring stable component supply and long-term obsolescence management.
Supply support for CY8C26643-24PVIT 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) designed high-integration programmable analog/digital SoCs for embedded control, emphasizing configurability, low-power operation, and rapid prototyping.
The PSoC 1 product line-including CY8C26643-was engineered to replace multiple discrete MCUs, ADCs, op-amps, and logic ICs with a single reconfigurable chip targeting cost-sensitive industrial and consumer control systems.
FAQ
Is CY8C26643-24PVIT still recommended for new designs?
No. Cypress explicitly marks this part as "Not Recommended for New Designs" in its official documentation, advising migration to the CY8C27xxx series (PSoC 3) or later generations. However, it remains supported for legacy design refresh, repair, and continuity programs with verified long-term supply through authorized channels.
What development tools are required to program CY8C26643-24PVIT?
PSoC Designer IDE (v5.4 or earlier) is mandatory-this is the only officially supported toolchain. It includes graphical User Module library, automatic code generation, and ISSP™ programming interface. No third-party compilers or modern PSoC Creator support is available for this PSoC 1 device.
Does CY8C26643-24PVIT support true hardware AES or secure boot?
No. It lacks dedicated cryptographic accelerators or secure boot ROM. While Flash protection modes exist (lock bits, read-out prevention), Cypress states these are not tamper-resistant and may be bypassed using known physical or side-channel methods-making it unsuitable for security-critical applications.
Can CY8C26643-24PVIT operate from a single 3.3 V supply?
Yes. Its specified operating voltage range is 3.0–5.25 V, so 3.3 V is fully compliant. All I/Os are 5 V-tolerant when configured as inputs, and analog blocks maintain specified performance (e.g., ADC ENOB, DAC linearity) across this range without external level shifters.
CY8C26643-24PVIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Series:
- PSOC™1 CY8C26xxx
- Packaging:
- Tape & Reel (TR)
- 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:
- 44
- Program Memory Size:
- 16KB (16K 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:
- Surface Mount
- Supplier Device Package:
CY8C26643-24PVIT FAQ
1.How can I place an order for CY8C26643-24PVIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C26643-24PVIT 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 CY8C26643-24PVIT reliable?
The price and inventory of CY8C26643-24PVIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C26643-24PVIT is usually 5 days.
3.What payment methods are accepted for CY8C26643-24PVIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C26643-24PVIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C26643-24PVIT?
CY8C26643-24PVIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C26643-24PVIT 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 CY8C26643-24PVIT?
For technical support, including CY8C26643-24PVIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C26643-24PVIT requirements.
6.How does Aetrix verify that CY8C26643-24PVIT is sourced from the original manufacturer or authorized distributors?
All CY8C26643-24PVIT 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 CY8C26643-24PVIT meets industry standards.
7.What is the process for return or replacement of CY8C26643-24PVIT?
All CY8C26643-24PVIT units undergo pre-shipment inspection (PSI). If there is an issue with CY8C26643-24PVIT, 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 CY8C26643-24PVIT part is unused and in its original packaging.
Return procedure for CY8C26643-24PVIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C26643-24PVIT 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.
