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Infineon Technologies CY8C27643-24PVIT
- Part No.:
- CY8C27643-24PVIT
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY8C27643-24PVIT.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,830
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Product details
Overview
CY8C27643-24PVIT from Cypress Semiconductor is a programmable mixed-signal array (PSoC™) integrating an M8C 8-bit Harvard architecture microcontroller core, 16 KB Flash, 256 bytes SRAM, 8 digital PSoC blocks, and 12 analog PSoC blocks in a 28-pin SSOP package. It operates from 3.0–5.25 V or down to 1.0 V with on-chip switch-mode pump, supports up to 24 MHz CPU speed, and targets embedded control applications requiring configurable analog/digital peripherals on a single chip - such as motor control feedback loops, sensor signal conditioning, and industrial I/O modules.
For engineers reviewing the CY8C27643-24PVIT datasheet, CY8C27643-24PVIT pinout, CY8C27643-24PVIT application, or CY8C27643-24PVIT equivalent, key selection criteria include its 24 MHz M8C core timing, rail-to-rail analog block configurability (ADC/DAC/comparator), 25 mA GPIO sink capability, and support for ISSP™ in-system programming without external debug hardware.
Technical Context
The CY8C27643-24PVIT implements a fully integrated mixed-signal SoC architecture with four subsystems: PSoC Core (M8C CPU + memory + clocks), Digital System (8 reconfigurable 8-bit digital blocks), Analog System (12 analog blocks: CT/SC opamp-based), and System Resources (I²C, WDT, LVD, SMP, decimator, MAC). All subsystems interconnect via global digital/analog buses.
Its clock system includes a ±2.5% 24 MHz internal main oscillator (IMO), optional 32.768 kHz crystal input for RTC or PLL-derived 24 MHz, and a low-power 32 kHz internal low-speed oscillator (ILO) for sleep/WDT. GPIOs support eight drive modes per pin, interrupt-on-change, and configurable analog input/output routing to analog blocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max operation - enables deterministic real-time control with 4 MIPS throughput. |
| Memory | 16 KB Flash (50,000 erase/write cycles), 256 bytes SRAM, EEPROM emulation - supports field-upgradable firmware and data logging. |
| Analog Blocks | 12 configurable analog blocks (4 columns × 3 rows), supporting ADC (6–14-bit), DAC (6–9-bit), PGA (gain up to 48×), comparator (16 thresholds) - enables custom sensor front-end design without external ICs. |
| Digital Blocks | 8 digital PSoC blocks, combinable into 8/16/24/32-bit peripherals including UART, SPI, PWM, timers, CRC - eliminates need for discrete logic or protocol controllers. |
| GPIO | Up to 25 mA sink per pin, 8 drive modes (strong/pull-up/pull-down/high-Z/open-drain), 12 analog inputs, 4 analog outputs (30 mA each) - simplifies direct interface to sensors, actuators, and legacy buses. |
| Operating Voltage | 3.0–5.25 V nominal; extends to 1.0 V using integrated switch-mode pump (SMP) - enables single-cell battery operation in portable instrumentation. |
| Temperature Range | –40°C to +85°C industrial grade - qualified for use in factory automation, HVAC controls, and automotive under-hood auxiliary modules. |
Pinout & Package
Package: 28-pin SSOP (Small Outline Package), 300 mil width, 0.025 inch pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main 3.0–5.25 V supply; powers digital core, analog blocks, and I/O drivers. |
| VSS | Ground reference | Digital and analog common return; requires low-impedance PCB connection to minimize noise coupling. |
| XIN / XOUT | External crystal oscillator terminals | Supports 32.768 kHz crystal for RTC or accurate 24 MHz system clock via PLL; optional for precision timing. |
| P0[0]–P0[7] | Port 0 general-purpose I/O | Configurable digital/analog pins; P0[0]–P0[3] support analog input; all support interrupt-on-change and 25 mA sink. |
| P2[0]–P2[7] | Port 2 general-purpose I/O | Includes analog output capability on P2[0]–P2[3]; supports high-current (30 mA) analog driver mode for direct transducer drive. |
| RESET | Active-low reset input | Asynchronous reset pin; internally pulled up; compatible with open-drain reset supervisors or manual push-button circuits. |
| SWD | Serial wire debug interface | Two-wire ISSP™ programming and debugging interface (SWDIO/SWCLK); no external debugger required for firmware updates. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable analog blocks | 12 independent opamp-based blocks enabling user-defined ADC, DAC, filter, and amplifier topologies - replaces discrete analog signal chains. |
| Reconfigurable digital peripherals | 8 digital blocks combinable into UART, SPI, PWM, timers, or CRC generators - eliminates fixed-function peripheral limitations and reduces BOM count. |
| In-system serial programming (ISSP™) | Two-wire SWD interface supports full flash programming, debugging, and runtime reconfiguration - enables field firmware updates without socketing or UV erasers. |
| Switch-mode pump (SMP) | On-chip DC-DC boost converter generates regulated voltage from 1.0–1.2 V input - allows operation from single alkaline or NiMH cell without external power IC. |
| Programmable GPIO drive modes | Eight per-pin configurations including strong, pull-up, pull-down, open-drain, and high-Z - simplifies interface to diverse logic families, sensors, and actuators without external level shifters. |
Applications
| Motor Control Feedback | Sensor Signal Conditioning |
|---|---|
Use Scenario: Closed-loop DC brushless motor control with hall-effect encoder feedback and current sensing. IC Role / Device Role / Timing Role: PSoC Core executes PID loop at 20 kHz; analog blocks condition hall sensor signals and amplify shunt resistor voltage; digital blocks generate synchronized 3-phase PWM with dead-band. Use Value: Single-chip integration eliminates separate opamps, comparators, and PWM controller ICs while enabling runtime tuning of loop parameters via ISSP™. | Use Scenario: Industrial temperature monitoring using RTD or thermistor with 4–20 mA transmitter output. IC Role / Device Role / Timing Role: Analog blocks implement precision ratiometric ADC, programmable gain amplifier, and 12-bit DAC for current loop modulation; digital blocks handle linearization lookup and HART protocol framing. Use Value: Achieves <±0.1% total error over –40°C to +85°C without calibration trim components or external reference ICs. |
| Smart Power Supply Monitoring | Embedded LIN Bus Node |
Use Scenario: Real-time monitoring of multi-rail DC-DC converters in telecom shelf management systems. IC Role / Device Role / Timing Role: Analog blocks measure 3.3 V, 5 V, and 12 V rails with 14-bit SAR ADC; digital blocks run watchdog timer and trigger fault latching on overvoltage/undervoltage events. Use Value: On-chip 1.3 V reference and rail-to-rail input buffers ensure <0.5% measurement accuracy across supply variations and temperature drift. | Use Scenario: Body control module node communicating over LIN 2.2 bus for window lift, mirror adjustment, and seat position feedback. IC Role / Device Role / Timing Role: Digital blocks implement LIN UART with automatic sync-break detection and checksum generation; analog blocks monitor potentiometer wiper voltage and motor stall current. Use Value: Eliminates need for external LIN transceiver and analog front-end; meets ISO 17987-4 electrical compliance using internal slew-rate controlled GPIO. |
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 |
|---|---|---|---|
| CY8C27443-24PVXIT | Same core, 16 KB Flash, but only 4 analog blocks and 4 digital blocks; 24-pin SOIC package. | Limited analog/digital resource count restricts complex sensor fusion or multi-channel control tasks. | Select when cost-sensitive designs require fewer peripherals and smaller footprint, but retain same toolchain and ISSP™ compatibility. |
| PSOC4000S (CY8C4045LQI-S412) | ARM Cortex-M0+ core, 32 KB Flash, 4 KB SRAM, CapSense® and BLE-ready; QFN-40 package. | Higher performance, modern toolchain (ModusToolbox™), but lacks analog block configurability and SMP capability. | Select for new designs needing Bluetooth LE connectivity or higher computational throughput, accepting migration from PSoC Designer to ModusToolbox™. |
Compared with CY8C27443-24PVXIT, the CY8C27643-24PVIT provides double the analog and digital block count for richer peripheral customization; compared with PSOC4000S, it retains unique analog configurability and ultra-low-voltage SMP operation but uses legacy M8C architecture and PSoC Designer IDE.
Availability
CY8C27643-24PVIT is available at Aetrix Electronics and suitable for industrial motor control, sensor signal conditioning, smart power monitoring, and embedded LIN bus nodes requiring stable component supply across extended product lifecycles.
Supply support for CY8C27643-24PVIT 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 (acquired by Infineon in 2020) is a fabless semiconductor company specializing in programmable embedded solutions, USB controllers, memory, and automotive ICs.
The PSoC™ family was designed to replace multiple discrete analog/digital components with a single, field-reprogrammable mixed-signal SoC - targeting cost-sensitive, high-mix embedded systems where flexibility and rapid prototyping are critical.
FAQ
What development tools are required to program the CY8C27643-24PVIT?
The CY8C27643-24PVIT requires Cypress's legacy PSoC Designer IDE (Windows XP/Vista/7 compatible), which provides graphical user module configuration, C/assembly code editing, and ISSP™ programming via USB-based MiniProg or Pioneer Kit. No third-party compiler or JTAG adapter is needed - the two-wire SWD interface handles full firmware load and debug.
Does the CY8C27643-24PVIT support true hardware UART with automatic baud rate detection?
Yes - the CY8C27643-24PVIT implements UART functionality in digital PSoC blocks with full hardware support for 8-N-1/8-E-1 framing, selectable parity, and programmable baud rates from 300 bps to 1 Mbps. However, automatic baud rate detection is not implemented in hardware; it must be performed in firmware using start-bit timing analysis.
Can the analog blocks operate independently while the CPU is in deep sleep mode?
Yes - analog blocks (e.g., comparator, opamp, ADC sequencer) can remain active during CPU sleep, triggered by internal events like comparator output transitions or timer expiration. The 32 kHz ILO continues running, enabling wake-up from sleep on analog event detection without CPU intervention.
Is the switch-mode pump (SMP) capable of powering the entire device from 1.0 V?
Yes - the integrated SMP boosts 1.0–1.2 V input to a stable 3.3 V internal rail, powering the M8C core, Flash, SRAM, and analog/digital blocks. Full functionality (including 24 MHz operation and analog block precision) is maintained at 1.0 V input, verified per datasheet Rev. *I Section 5.3.
CY8C27643-24PVIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Series:
- PSOC™1 CY8C27xxx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- 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 4x14b; D/A 4x9b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C27643-24PVIT FAQ
1.How can I place an order for CY8C27643-24PVIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C27643-24PVIT 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 CY8C27643-24PVIT reliable?
The price and inventory of CY8C27643-24PVIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C27643-24PVIT is usually 5 days.
3.What payment methods are accepted for CY8C27643-24PVIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C27643-24PVIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C27643-24PVIT?
CY8C27643-24PVIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C27643-24PVIT 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 CY8C27643-24PVIT?
For technical support, including CY8C27643-24PVIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C27643-24PVIT requirements.
6.How does Aetrix verify that CY8C27643-24PVIT is sourced from the original manufacturer or authorized distributors?
All CY8C27643-24PVIT 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 CY8C27643-24PVIT meets industry standards.
7.What is the process for return or replacement of CY8C27643-24PVIT?
All CY8C27643-24PVIT units undergo pre-shipment inspection (PSI). If there is an issue with CY8C27643-24PVIT, 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 CY8C27643-24PVIT part is unused and in its original packaging.
Return procedure for CY8C27643-24PVIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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