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Infineon Technologies CY8C22545-24AXIT
- Part No.:
- CY8C22545-24AXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
CY8C22545-24AXIT.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 44TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
CY8C22545-24AXIT from Cypress Semiconductor is a programmable PSoC® 1 System-on-Chip featuring an M8C 8-bit Harvard architecture CPU running at up to 24 MHz, 16 KB flash/1 KB SRAM, 10-bit SAR ADC (200 ksps), six analog and eight digital configurable blocks, and industrial-grade operation from –40 °C to +85 °C. It serves as a mixed-signal controller in embedded sensing and motor control systems requiring integrated analog front-end and digital logic.
For engineers reviewing the CY8C22545-24AXIT datasheet, CY8C22545-24AXIT pinout, CY8C22545-24AXIT application, or CY8C22545-24AXIT equivalent, key selection criteria include its 44-pin TQFP package, CapSense®-optimized dual CSD channel support, 24 MHz internal oscillator with ±5% tolerance across industrial temperature, and configurable GPIO drive strength (25 mA sink / 10 mA source).
Technical Context
The CY8C22545 implements a fixed-function yet highly configurable architecture where analog and digital PSoC blocks are interconnected via global analog/digital busing. Its M8C core executes instructions at up to 24 MHz with 8×8 multiply and 32-bit accumulate capability, enabling real-time signal processing for sensor conditioning and closed-loop control.
Digital system resources include eight 8-bit blocks combinable into 8–32-bit timers, PWMs (with deadband), UART, SPI, I²C (400 kHz), and CRC generators; analog system includes six Type "E" blocks supporting dual 8-bit ADCs, comparators, and dedicated CapSense® timing with two IDACs (up to 640 µA) and synchronized scanning using CSD_CLK/CNT_CLK dividers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max clock - enables deterministic real-time control with four MIPS throughput. |
| Flash / SRAM | 16 KB flash (50k erase/write cycles), 1 KB SRAM - supports field-upgradable firmware and transient data buffering. |
| ADC Performance | 10-bit SAR, 200 ksps, ±1.5 LSB DNL, ±2.5 LSB INL - suitable for precision current/voltage monitoring in power supplies. |
| CapSense® Support | Dual CSD channels, two 16-bit timers, two IDACs (640 µA max) - eliminates external RC networks for touch button/slider implementation. |
| Operating Voltage | 3.0 V to 5.25 V - compatible with legacy 3.3 V and 5 V industrial bus interfaces without level-shifting. |
| Temperature Range | –40 °C to +85 °C - validated for deployment in automotive body electronics and industrial HMI panels. |
| Oscillator Accuracy | Internal 24 MHz IMO ±5% over full temperature range - sufficient for UART baud rate generation without crystal. |
Pinout & Package
Package: 44-pin TQFP (7 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary power domain pins; decoupling required within 10 mm of VDD/VSS pairs for stable analog/digital operation. |
| P0[0]–P0[7], P1[0]–P1[7], P2[0]–P2[7], P3[0]–P3[7], P4[0]–P4[3] | Configurable GPIO | All support pull-up/pull-down/high-Z/strong/open-drain modes; up to 38 pins usable as analog inputs with programmable routing to ADC/mux. |
| XIN, XOUT | External crystal oscillator interface | Supports optional 32.768 kHz crystal for RTC or PLL-based 24 MHz system clock with improved accuracy vs. IMO. |
| RESET | Active-low reset input | Asynchronous reset pin; internal POR/LVD circuitry ensures reliable startup under brown-out conditions. |
| SCL, SDA | I²C bidirectional bus interface | Hardware I²C slave/master/multimaster capable at 400 kHz; supports hardware addressing for multi-device bus topology. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable Analog Blocks | Six Type "E" blocks enable dual 8-bit ADCs, up to four comparators, or programmable op-amp configurations - reduces external signal-conditioning components. |
| Digital Block Flexibility | Eight 8-bit digital blocks combinable into 8–32-bit timers, PWMs (with deadband), UART, SPI, or CRC modules - supports custom protocol stacks without external logic. |
| CapSense® Integration | Dedicated CSD_CLK/CNT_CLK dividers and dual-channel scan timers eliminate software timing overhead - enables <10 ms full-panel touch response. |
| Programmable Clocking | Internal 24/48 MHz IMO, 32 kHz ILO, optional ECO + PLL - allows dynamic clock scaling between active, sleep, and watchdog modes. |
Applications
| Industrial Motor Control | Touch-Based Human-Machine Interface |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC motors using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Mixed-signal controller executing PID loop, generating synchronized three-phase PWM with deadband, and digitizing analog current sense signals. Use Value: On-chip 10-bit ADC and PWM blocks eliminate external op-amps and comparator ICs; 24 MHz CPU ensures sub-100 µs loop execution time. | Use Scenario: Capacitive touch panel for HVAC control in commercial building automation systems. IC Role / Device Role / Timing Role: Dedicated CapSense® engine performing simultaneous dual-channel scanning with noise immunity via synchronized IDAC and CSD_CLK. Use Value: Two integrated 16-bit timers and dual IDACs replace discrete RC networks and microcontroller polling - reduces BOM count by ≥4 components per button group. |
| Programmable Power Supply Monitor | Smart Sensor Node Controller |
Use Scenario: Real-time voltage/current monitoring and fault logging in 24 V DC industrial power distribution units. IC Role / Device Role / Timing Role: Analog front-end digitizing multiple rail voltages via multiplexed 10-bit ADC, while storing event timestamps in SRAM using internal RTC block. Use Value: Integrated 1.3 V reference and LVD circuitry enable accurate threshold detection without external references or supervisor ICs. | Use Scenario: Low-power environmental sensor node aggregating temperature, humidity, and ambient light data before wireless transmission. IC Role / Device Role / Timing Role: Sleep-mode coordinator activating ADC and digital blocks on timer or interrupt, then entering deep-sleep with 32 kHz ILO active. Use Value: 3.0–5.25 V operating range and –40 °C to +85 °C rating allow direct integration into unregulated outdoor enclosures without auxiliary regulators. |
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 |
|---|---|---|---|
| CY8C22445-24AXI | Same package and core, but only four analog blocks and reduced GPIO count (28 pins); no dual CSD channel support. | Suitable for simpler CapSense® designs with ≤10 buttons and no concurrent analog sensing. | Select when cost reduction is prioritized over analog resource headroom and multi-channel touch scalability. |
| CY8C21545-24LFXIT | Same analog/digital block count, but 48-pin LQFP package and extended temperature range (–40 °C to +105 °C); higher thermal resistance. | Required for under-hood automotive applications or high-ambient industrial environments. | Choose when operating temperature exceeds +85 °C or board layout requires larger pad spacing for thermal management. |
Compared with CY8C22445-24AXI and CY8C21545-24LFXIT, the CY8C22545-24AXIT offers optimal balance of analog resource density (six Type "E" blocks), CapSense® scalability (dual CSD), and industrial temperature compliance - making it ideal for mid-tier HMI and motor control designs where feature completeness outweighs cost or thermal extremes.
Availability
CY8C22545-24AXIT is available at Aetrix Electronics and suitable for industrial motor control, capacitive touch HMI, and programmable power monitor applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for CY8C22545-24AXIT 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, offering PSoC®, Traveo™, and EZ-BLE™ product families since 1982.
The CY8C22545 belongs to the PSoC® 1 family - engineered specifically for cost-sensitive, low-to-mid complexity embedded systems needing configurable analog/digital peripherals without external glue logic.
FAQ
Does CY8C22545-24AXIT support in-system programming (ISP) via standard interfaces?
Yes. The device supports In-System Serial Programming (ISSP) through dedicated PSoC programmer pins (e.g., SCLK, SDATA, XRES), enabling firmware updates without removing the chip from the PCB. ISSP operates at up to 2 MHz and is compatible with Cypress's MiniProg1/MiniProg3 programmers and third-party tools supporting the PSoC 1 protocol.
Can the 10-bit SAR ADC perform simultaneous sampling on multiple channels?
No. The 10-bit SAR ADC is single-channel with sample-and-hold; however, it supports rapid sequential conversion across up to 38 GPIO-configured analog inputs using programmable multiplexing. Conversion time is 5 µs per sample at 200 ksps, and results can be stored in SRAM or transferred via DMA-like burst reads using digital blocks.
What is the maximum drive strength and voltage rating for GPIO pins in open-drain mode?
In open-drain mode, each GPIO supports 25 mA sink current at VDD = 5.25 V, with absolute maximum voltage rating of 5.5 V. The pin tolerates 5 V logic levels regardless of VDD (down to 3.0 V), enabling direct interfacing with legacy 5 V peripherals without level shifters.
Is external memory required to implement a UART bootloader?
No. The onboard 16 KB flash and 1 KB SRAM are sufficient to host a full UART-based bootloader that receives firmware images, validates checksums, and reprograms designated flash sectors. Cypress provides reference bootloader code in PSoC Designer that uses the hardware UART module and ISSP-compatible command set.
CY8C22545-24AXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 44-LQFP
- Series:
- PSOC™1 CY8C22xxx
- Packaging:
- Tape & Reel (TR)
- 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:
- 38
- 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 3x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C22545-24AXIT FAQ
1.How can I place an order for CY8C22545-24AXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C22545-24AXIT 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 CY8C22545-24AXIT reliable?
The price and inventory of CY8C22545-24AXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C22545-24AXIT is usually 5 days.
3.What payment methods are accepted for CY8C22545-24AXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C22545-24AXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C22545-24AXIT?
CY8C22545-24AXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C22545-24AXIT 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 CY8C22545-24AXIT?
For technical support, including CY8C22545-24AXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C22545-24AXIT requirements.
6.How does Aetrix verify that CY8C22545-24AXIT is sourced from the original manufacturer or authorized distributors?
All CY8C22545-24AXIT 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 CY8C22545-24AXIT meets industry standards.
7.What is the process for return or replacement of CY8C22545-24AXIT?
All CY8C22545-24AXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY8C22545-24AXIT, 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 CY8C22545-24AXIT part is unused and in its original packaging.
Return procedure for CY8C22545-24AXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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