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Infineon Technologies CY8C27243-24PVI
- Part No.:
- CY8C27243-24PVI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C27243-24PVI.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,540
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Product details
Overview
CY8C27243-24PVI from Cypress Semiconductor is a programmable mixed-signal array (PSoC™) integrating an M8C 8-bit Harvard architecture CPU, 16 KB Flash, 256 bytes SRAM, 8 digital PSoC blocks, and 12 analog PSoC blocks in a 28-pin PDIP package. It operates from 3.0–5.25 V or down to 1.0 V via on-chip switch-mode pump, supports up to 24 MHz CPU speed, and delivers configurable analog peripherals including 14-bit ADCs and 9-bit DACs for embedded sensor interface and control applications.
For engineers reviewing the CY8C27243-24PVI datasheet, CY8C27243-24PVI pinout, CY8C27243-24PVI application, or CY8C27243-24PVI equivalent, key selection criteria include its dual-domain (analog + digital) configurability, 28-pin through-hole package compatibility with legacy prototyping, industrial temperature range (−40°C to +85°C), and support for ISSP™ in-system programming without external high-voltage sources.
Technical Context
The CY8C27243-24PVI implements a unified mixed-signal architecture where 8 digital blocks (organized in 2 rows of 4) and 12 analog blocks (4 columns × 3 per column) interconnect via global digital and analog buses. Its M8C core executes at up to 24 MHz with 17 interrupt vectors and integrates dedicated hardware resources including a 32-bit MAC unit, decimator for Delta-Sigma ADCs, and configurable clock tree with IMO (24/48 MHz ±2.5%), ILO (32 kHz), and ECO support.
Analog system flexibility includes rail-to-rail CT/SC opamp-based blocks enabling user-defined topologies: up to four 14-bit incremental/delta-sigma/SAR ADCs, four 9-bit multiplying DACs, programmable gain amplifiers (up to 48×), and 4-pole filters - all mapped to up to 12 GPIO pins with 30 mA analog output drive capability on four dedicated pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max, 4 MIPS throughput |
| Memory | 16 KB Flash (50k erase/write cycles), 256 bytes SRAM, EEPROM emulation in Flash |
| Analog Blocks | 12 configurable blocks: CT + SC topology supporting ADCs, DACs, filters, PGAs, comparators |
| Digital Blocks | 8 programmable 8-bit blocks combinable into 8/16/24/32-bit peripherals (PWM, UART, SPI, CRC) |
| Operating Voltage | 3.0–5.25 V nominal; extends to 1.0 V using integrated switch-mode pump (SMP) |
| Temperature Range | Industrial grade: −40°C to +85°C ambient operating range |
| Package | 28-pin plastic DIP (PDIP), 0.600″ width, through-hole mounting compatible with breadboards and wave soldering |
Pinout & Package
Package: 28-pin PDIP (Plastic Dual In-line Package), 0.600″ body width, standard through-hole footprint with 0.1″ pin pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main supply pin for digital/analog core; accepts 3.0–5.25 V or boosted 1.0 V via SMP |
| VSS | Ground reference | Digital and analog common ground; requires low-impedance connection for mixed-signal integrity |
| P0[0]–P0[7] | Port 0 bidirectional I/O | 8 GPIO pins with configurable drive modes (strong, open-drain, pull-up/down, Hi-Z) and analog input capability |
| P1[0]–P1[7] | Port 1 bidirectional I/O | 8 GPIO pins supporting digital block routing and up to 4 analog outputs (30 mA each) |
| P2[0]–P2[7] | Port 2 bidirectional I/O | 8 GPIO pins with interrupt-on-change, analog input multiplexing, and global bus connectivity |
| XIN/XOUT | External crystal oscillator terminals | Supports optional 32.768 kHz crystal for RTC or PLL-based 24 MHz system clock generation |
| RESET | Active-low reset input | Asynchronous reset pin; internal POR/LVD ensures reliable startup without external RC network |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog System | 12 independent analog blocks enable custom signal chains - e.g., 14-bit delta-sigma ADC + 4-pole LPF + PGA in one pin-connected path |
| Dynamic Reconfiguration | Runtime switching between multiple pre-defined analog/digital peripheral configurations without full reset or code reload |
| In-System Serial Programming | ISSP™ protocol uses only 4 pins (VDD, VSS, SCLK, SDATA) for field firmware updates - no high-voltage programmer required |
| Low-Voltage Operation | On-chip switch-mode pump enables full functionality from single 1.2 V battery cell, eliminating need for external DC-DC converter |
| Hardware Acceleration | Dedicated 8×8 multiplier + 32-bit accumulator and decimator offload DSP tasks like sensor linearization and filtering from CPU |
Applications
| Industrial Sensor Node | Motor Control Interface |
|---|---|
Use Scenario: Standalone temperature/humidity monitoring node with analog sensor conditioning, local data logging, and RS-485 communication. IC Role / Device Role / Timing Role: Configurable analog front-end (14-bit SAR ADC + PGA) and digital subsystem (UART + CRC) replace discrete opamps, ADC, and MCU. Use Value: Single-chip integration reduces BOM count by 7+ components and eliminates calibration drift between discrete signal chain stages. | Use Scenario: Brushless DC motor commutation controller with hall-effect feedback, PWM generation, and fault detection. IC Role / Device Role / Timing Role: Digital PSoC blocks generate synchronized 3-phase PWM with dead-band; analog blocks monitor current sense and overtemperature. Use Value: Hardware-timed PWM edges achieve <50 ns jitter; analog comparator thresholds trigger immediate hardware fault shutdown (<1 µs latency). |
| Medical Diagnostic Instrument | Smart Energy Meter Interface |
Use Scenario: Portable ECG signal acquisition module with lead-off detection, baseline wander correction, and Bluetooth LE interface. IC Role / Device Role / Timing Role: Delta-sigma ADC + programmable filter + decimator perform real-time noise rejection; CPU handles packetization and BLE stack timing. Use Value: On-chip analog filtering achieves >80 dB SNR at 1 kHz without external anti-aliasing components. | Use Scenario: Revenue-grade electricity meter with shunt-based current sensing, voltage scaling, and tamper-detection logic. IC Role / Device Role / Timing Role: Dual 14-bit ADCs sample voltage/current simultaneously; digital blocks compute RMS, harmonics, and detect neutral disconnect. Use Value: Matched analog paths ensure <0.1% gain error between channels; hardware CRC validates metrology firmware integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal programmable controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C27443-24PVI | Same architecture but with 44-pin PDIP, 5 I/O ports (vs. 3), and expanded analog/digital resource count (12 digital/12 analog blocks) | Required for designs needing >28 GPIO or additional analog signal paths (e.g., multi-channel data acquisition) | Select when pin count or analog block count exceeds CY8C27243 limits; not drop-in compatible due to pinout expansion |
| CY8C27143-24PVI | Same 28-pin PDIP package but reduced resources: 4 digital blocks and 6 analog blocks (half capacity) | Suitable for simpler control tasks without complex analog processing (e.g., basic LED dimming + button interface) | Choose for cost-sensitive applications where full CY8C27243 capability is unused; shares identical footprint and power specs |
Compared with CY8C27443-24PVI and CY8C27143-24PVI, the CY8C27243-24PVI delivers optimal balance of I/O count, analog precision (14-bit ADC), and digital flexibility in the 28-pin through-hole form factor - making it ideal for space-constrained industrial controls requiring both sensor interfacing and deterministic real-time response.
Availability
CY8C27243-24PVI is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, medical diagnostic instruments, and smart energy meter interfaces requiring stable component supply across extended product lifecycles.
Supply support for CY8C27243-24PVI 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) is a fabless semiconductor company specializing in programmable mixed-signal, analog, and embedded controller solutions for industrial, automotive, and consumer markets.
The CY8C27x43 PSoC™ family was designed to replace discrete analog front-ends, digital peripherals, and microcontrollers with a single configurable chip - targeting cost-sensitive, space-constrained embedded systems requiring rapid customization without ASIC development.
FAQ
What development tools are required to program the CY8C27243-24PVI?
The CY8C27243-24PVI is programmed using Cypress's free PSoC™ Designer IDE, which provides graphical user module configuration, C/assembly code editing, and in-circuit debugging. An ISSP-compatible programmer (e.g., MiniProg1 or CY3210-PSoC Evaluation Kit) is required for physical programming via four-wire serial interface - no JTAG adapter needed.
Does the CY8C27243-24PVI support true hardware-based analog filtering?
Yes - its 12 analog PSoC blocks include continuous-time (CT) and switched-capacitor (SC) opamp circuits that implement active filters (2-, 4-, 6-, or 8-pole low-pass, band-pass, or notch) entirely in hardware. Filter coefficients are set via register writes, and signal paths operate independently of CPU execution, enabling real-time analog domain processing.
Can the CY8C27243-24PVI operate from a single 1.2 V alkaline cell?
Yes - its integrated switch-mode pump (SMP) boosts 1.2 V input to regulated 3.3 V or 5.0 V internally, enabling full functionality (including 24 MHz CPU operation and analog block biasing) without external DC-DC converters. This is confirmed in the datasheet's "Operating Voltages Down to 1.0V Using On-Chip Switch Mode Pump" specification.
Is the 28-pin PDIP package RoHS-compliant?
Yes - the CY8C27243-24PVI in PDIP packaging meets RoHS Directive 2011/65/EU requirements, with lead-free finish on all external terminations and compliant molding compound. Cypress documentation confirms exemption status for homogeneous materials and full compliance with Annex II substance restrictions.
CY8C27243-24PVI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™1 CY8C27xxx
- Packaging:
- Tube
- 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:
- 16
- 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:
CY8C27243-24PVI FAQ
1.How can I place an order for CY8C27243-24PVI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C27243-24PVI 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 CY8C27243-24PVI reliable?
The price and inventory of CY8C27243-24PVI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C27243-24PVI is usually 5 days.
3.What payment methods are accepted for CY8C27243-24PVI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C27243-24PVI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C27243-24PVI?
CY8C27243-24PVI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C27243-24PVI 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 CY8C27243-24PVI?
For technical support, including CY8C27243-24PVI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C27243-24PVI requirements.
6.How does Aetrix verify that CY8C27243-24PVI is sourced from the original manufacturer or authorized distributors?
All CY8C27243-24PVI 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 CY8C27243-24PVI meets industry standards.
7.What is the process for return or replacement of CY8C27243-24PVI?
All CY8C27243-24PVI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C27243-24PVI, 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 CY8C27243-24PVI part is unused and in its original packaging.
Return procedure for CY8C27243-24PVI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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