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Infineon Technologies CY8C4127AZI-S445
- Part No.:
- CY8C4127AZI-S445
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
CY8C4127AZI-S445.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,419
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Product details
Overview
CY8C4127AZI-S445 from Cypress Semiconductor is a PSoC 4100S Plus programmable system-on-chip featuring a 48-MHz Arm Cortex-M0+ CPU, 128 KB flash, 16 KB SRAM, integrated CapSense® capacitive sensing, CAN 2.0B interface, and up to 54 GPIOs in a 44-pin TQFP package. It supports Deep Sleep mode at 2.5 µA, includes a 12-bit 1-Msps SAR ADC, two opamps, five reconfigurable SCBs (I²C/SPI/UART), and eight TCPWM blocks - deployed in industrial HMI, smart sensor nodes, and motor control interfaces.
For engineers reviewing the CY8C4127AZI-S445 datasheet, CY8C4127AZI-S445 pinout, CY8C4127AZI-S445 application, or CY8C4127AZI-S445 equivalent, key selection criteria include its integrated CAN 2.0B block with TTCAN support, CapSense sigma-delta architecture (>5:1 SNR), Deep Sleep analog retention, programmable analog/digital routing, and PSoC Creator IDE compatibility for hardware/firmware co-design.
Technical Context
The device implements a tightly coupled MCU subsystem with 8-channel DMA, NVIC, and SWD debug interface supporting four breakpoints and two watchpoints. Its clock architecture integrates IMO (±2%), ILO, WCO, ECO (4–33 MHz), and PLL to generate stable 48-MHz HFCLK with fractional/integer dividers for peripheral synchronization.
Analog resources include two opamps operable in Deep Sleep, a 12-bit SAR ADC with channel sequencer and averaging, dual IDACs, and a dedicated capacitance-sensing block enabling single-slope 10-bit conversion. Digital flexibility comes from programmable logic blocks, five SCBs, eight TCPWMs with quadrature decode and comparator-triggered kill signals, and SmartSense™ auto-tuning for CapSense.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 48 MHz, single-cycle multiply - enables real-time deterministic control without external co-processor |
| Flash / SRAM | 128 KB flash with Read Accelerator; 16 KB zero-wait-state SRAM - supports complex firmware with fast interrupt response |
| CapSense Performance | Sigma-Delta CSD with >5:1 SNR and water tolerance - delivers robust touch operation in humid or wet environments |
| CAN Interface | CAN 2.0B with Time-Triggered CAN (TTCAN) support - meets deterministic timing requirements for automotive body electronics |
| Low-Power Modes | Deep Sleep current = 2.5 µA with opamps active - enables battery-powered sensor nodes with continuous analog monitoring |
| ADC | 12-bit SAR, 1 Msps, differential/single-ended, channel sequencer with signal averaging - improves noise immunity in industrial signal acquisition |
| GPIO Count | Up to 54 programmable pins with configurable drive modes, slew rates, and CapSense capability on any pin - simplifies PCB layout and reduces BOM count |
Pinout & Package
Package: 44-pin TQFP (0.8 mm pitch), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Primary power supply input | Accepts 1.71–5.5 V; powers digital core, analog blocks, and I/Os |
| VSS | Ground reference | Common return path for all internal circuits and external peripherals |
| P0[0]–P0[7] | Programmable GPIO port 0 | Support CapSense, analog input/output, digital logic, or SCB functions; configurable drive strength/slew rate |
| P1[0]–P1[7] | Programmable GPIO port 1 | Includes dedicated CAN_TX/CAN_RX on P1[2]/P1[3]; supports high-speed communication and motor control signals |
| SWDIO / SWDCK | Serial Wire Debug interface | Two-pin debug access for programming, tracing, and full-chip debugging without JTAG pod |
| XRES | External reset input | Active-low asynchronous reset; overrides internal POR/BOR for system-level recovery |
| XTAL_IN / XTAL_OUT | External crystal oscillator connection | Supports 4–33 MHz ECO for precise timing; enables PLL-based 48-MHz system clock |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Blocks | Two opamps + 12-bit SAR ADC + dual IDACs enable mixed-signal signal conditioning without external components |
| CapSense Sigma-Delta Engine | Dedicated hardware accelerator with SmartSense™ auto-tuning eliminates manual calibration effort in production |
| Reconfigurable Serial Blocks | Five SCBs independently assignable as I²C, SPI, or UART - allows dynamic protocol switching per design phase |
| True Random Number Generator | Hardware TRNG compliant with NIST SP 800-90B for cryptographic key generation in secure boot and OTA updates |
| Device Security | Flash protection, debug disable, and permanent interface lockdown prevent firmware extraction and unauthorized reprogramming |
Applications
| Industrial HMI Panels | Smart Sensor Nodes |
|---|---|
Use Scenario: Touch-enabled operator interface on factory floor equipment with splash/water exposure. IC Role / Device Role / Timing Role: Main controller executing CapSense firmware, managing display refresh via GPIO-driven LCD segments, and communicating via CAN to PLC. Use Value: Integrated CSD engine achieves >5:1 SNR and water tolerance without shielded overlay or guard traces - reducing mechanical cost and assembly steps. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and vibration in remote locations. IC Role / Device Role / Timing Role: System-on-chip handling sensor signal acquisition (SAR ADC + opamp buffering), low-power data logging (flash), and CAN bus reporting. Use Value: 2.5 µA Deep Sleep with active opamps enables continuous analog wake-up detection - extending battery life beyond 5 years on coin cell. |
| Automotive Body Control | Motor Drive Interfaces |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN/CAN gateway functionality. IC Role / Device Role / Timing Role: CAN 2.0B node with TTCAN scheduling for time-critical actuator commands and diagnostics over vehicle network. Use Value: Hardware TTCAN support ensures jitter-free message transmission aligned to master clock - meeting OEM timing compliance without software overhead. | Use Scenario: Small BLDC motor driver with hall-effect feedback, PWM control, and fault protection. IC Role / Device Role / Timing Role: Real-time controller using TCPWM blocks for center-aligned PWM, quadrature decoding for position, and comparator-triggered kill signals. Use Value: Hardware kill signal propagation (<100 ns) from comparator to PWM output prevents shoot-through during overcurrent events - eliminating need for external protection ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon XMC4200-F64K256 | No integrated CapSense; includes EtherCAT slave interface and higher PWM resolution (150 ps) | Better suited for industrial motion control with fieldbus integration; lacks capacitive touch acceleration | Select when Ethernet or EtherCAT connectivity is required and touch UI is handled externally |
| NXP LPC55S16JBD64 | Arm Cortex-M33 core with TrustZone; no CAN 2.0B block; includes USB HS PHY and AES accelerator | Stronger security focus for IoT edge devices; requires external CAN transceiver for bus connectivity | Select when secure boot, encrypted storage, or USB host functionality is prioritized over integrated CAN |
Compared with XMC4200-F64K256 and LPC55S16JBD64, CY8C4127AZI-S445 uniquely combines CapSense hardware acceleration, CAN 2.0B with TTCAN, and sub-3 µA Deep Sleep analog retention - making it optimal for cost-sensitive, touch-enabled, CAN-connected embedded systems where mixed-signal integration reduces component count.
Availability
CY8C4127AZI-S445 is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across manufacturing lots.
Supply support for CY8C4127AZI-S445 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) designs programmable mixed-signal ICs for embedded control, human-machine interface, and connectivity applications with emphasis on integration, low power, and security.
The PSoC 4100S Plus product line targets cost-optimized, touch-enabled, CAN-connected embedded systems - delivering reconfigurable analog/digital fabric with Arm Cortex-M0+ performance and industrial-grade reliability.
FAQ
Does CY8C4127AZI-S445 support USB device functionality?
No. The device does not include a USB PHY or USB controller. It provides five SCBs configurable as I²C, SPI, or UART only. For USB connectivity, an external USB-to-UART bridge (e.g., CP2102) or companion microcontroller with USB support is required. USB is not listed in the device's peripheral feature set or block diagram.
What is the maximum operating frequency of the internal main oscillator (IMO)?
The IMO operates at a nominal 48 MHz with ±2% initial accuracy across voltage and temperature. It can be trimmed via firmware using the WCO or external crystal reference to improve stability. This 48-MHz output serves as the default HFCLK source before PLL lock and remains usable as a fail-safe clock.
Can the CapSense blocks operate during Deep Sleep mode?
Yes. The CapSense sigma-delta (CSD) block retains full functionality in Deep Sleep mode, including automatic scanning and SmartSense™ tuning. Combined with 2.5 µA system current and active opamps, this enables ultra-low-power touch wake-up without CPU intervention - critical for battery-operated consumer and industrial devices.
Is the CAN block compatible with ISO 11898-2 physical layer?
No. The CAN block is a protocol-layer (MAC) implementation only. It requires an external CAN transceiver (e.g., TJA1042, SN65HVD230) compliant with ISO 11898-2 to interface with the physical bus. The device provides CAN_TX and CAN_RX signals directly from the peripheral to the transceiver's input/output pins.
CY8C4127AZI-S445 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Series:
- PSOC™ 4 CY8C4100S Plus
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, Microwire, SmartCard, SPI, SSP, UART/USART
- Peripherals:
- Brown-out Detect/Reset, CapSense, LCD, POR, PWM, WDT
- Number of I/O:
- 54
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x10b Slope, 16x12b SAR; D/A 2xIDAC
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C4127AZI-S445 FAQ
1.How can I place an order for CY8C4127AZI-S445 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C4127AZI-S445 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 CY8C4127AZI-S445 reliable?
The price and inventory of CY8C4127AZI-S445 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C4127AZI-S445 is usually 5 days.
3.What payment methods are accepted for CY8C4127AZI-S445?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C4127AZI-S445 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C4127AZI-S445?
CY8C4127AZI-S445 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C4127AZI-S445 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 CY8C4127AZI-S445?
For technical support, including CY8C4127AZI-S445 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C4127AZI-S445 requirements.
6.How does Aetrix verify that CY8C4127AZI-S445 is sourced from the original manufacturer or authorized distributors?
All CY8C4127AZI-S445 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 CY8C4127AZI-S445 meets industry standards.
7.What is the process for return or replacement of CY8C4127AZI-S445?
All CY8C4127AZI-S445 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C4127AZI-S445, 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 CY8C4127AZI-S445 part is unused and in its original packaging.
Return procedure for CY8C4127AZI-S445:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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