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Infineon Technologies CY8C24894-24LTXI
- Part No.:
- CY8C24894-24LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
CY8C24894-24LTXI.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 56QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,126
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Product details
Overview
CY8C24894-24LTXI from Cypress Semiconductor is a programmable System-on-Chip (PSoC) integrating an M8C 8-bit Harvard-architecture CPU, six analog PSoC blocks (supporting up to 14-bit ADCs and 9-bit DACs), four digital PSoC blocks (including UART, SPI, and PWM), full-speed USB 2.0 (12 Mbps), and 16 KB flash/1 KB SRAM - deployed in industrial human-machine interface (HMI) and capacitive touch sensing systems.
For engineers reviewing the CY8C24894-24LTXI datasheet, CY8C24894-24LTXI pinout, CY8C24894-24LTXI application, or CY8C24894-24LTXI equivalent, key selection criteria include USB endpoint count (5 total), analog input capability (up to 48 GPIOs), precision internal oscillator (±4% main, 0.25% USB-calibrated), industrial temperature range (–40 °C to +85 °C), and ISSP support via XRES pin.
Technical Context
The CY8C24894-24LTXI implements a configurable mixed-signal architecture where analog and digital PSoC blocks interconnect via global analog/digital buses. Its M8C core executes at up to 24 MHz with two 8×8 multipliers and 32-bit accumulator, enabling real-time sensor signal processing without external co-processors.
Dedicated hardware resources include a USB 2.0-compliant PHY with four unidirectional endpoints and one bidirectional control endpoint, 256-byte dedicated USB buffer, and on-chip IMO calibrated to ±0.25% for USB timing - eliminating need for external crystal. I²C supports up to 400 kHz in slave/master/multi-master modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max - enables deterministic real-time firmware execution with dual MAC units for sensor math. |
| Flash / SRAM | 16 KB flash (50k erase/write cycles), 1 KB SRAM - supports field-upgradable firmware and local data buffering for touch event queues. |
| USB Interface | Full-speed (12 Mbps), USB 2.0 compliant, 5 endpoints (4 IN + 1 bidirectional control) - enables HID-class device enumeration without host driver development. |
| Analog Blocks | 6 rail-to-rail analog PSoC blocks - provide configurable 14-bit SAR ADC, 9-bit DAC, PGA, and comparator per block for multi-channel capacitive sensing front-end. |
| Digital Blocks | 4 digital PSoC blocks - deliver 8–32-bit timers, UART, SPI (master/slave), CRC, PRS, and GPIO-interrupt routing for system-level control logic. |
| Operating Voltage | 3.0 V to 5.25 V - allows direct connection to 3.3 V or 5 V logic domains without level-shifting in industrial HMI designs. |
| Temperature Range | –40 °C to +85 °C (industrial) - qualified for deployment in factory automation panels and outdoor kiosks. |
Pinout & Package
Package: 68-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XRES | External reset / ISSP programming control | Active-low pin enabling in-system serial programming and synchronous system reset - required for bootloader-based firmware updates. |
| USB_DP / USB_DM | USB differential data pair | Direct connection to USB connector; internal 1.5 kΩ pull-up on USB_DP enables full-speed device enumeration without external resistors. |
| P0[0]–P0[7] | General-purpose I/O with analog capability | Support up to 48 total analog inputs across all ports; configurable as capacitive sense electrodes with CSA hardware acceleration. |
| VDDA / VSSA | Analog power supply / ground | Separate analog domain pins reduce noise coupling into ADC/DAC reference paths - critical for <1 LSB INL in touch measurement. |
| I2C_SDA / I2C_SCL | I²C bidirectional data / clock | Hardware-supported I²C interface up to 400 kHz - used for communication with external EEPROM or display controllers. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable analog blocks | Each of six analog blocks can be independently assigned as ADC, DAC, PGA, or comparator - enabling simultaneous multi-function analog signal chains (e.g., 4-channel touch + 2-channel battery monitoring). |
| Programmable GPIO drive strength | 25 mA sink / 10 mA source per pin, with pull-up/pull-down/high-Z/open-drain modes - eliminates need for external bus buffers in LED driver or relay control interfaces. |
| Capacitive sensing accelerator (CSA) | Hardware-accelerated charge-transfer method with automatic baseline tracking - achieves <5 µs per electrode scan, supporting >100 Hz refresh rates for smooth slider gestures. |
| Internal oscillator accuracy | IMO calibrated to ±0.25% for USB timing - removes external 12 MHz crystal and associated layout area/cost while maintaining USB compliance. |
| ISSP via XRES | In-system serial programming using only XRES, VDD, VSS, and SWD pins - enables firmware updates through minimal 4-pin debug header without dedicated programming connector. |
Applications
| Industrial HMI Panel | USB Human Interface Device |
|---|---|
Use Scenario: Touch-enabled control panel in factory machinery with LED status indicators and real-time parameter adjustment. IC Role / Device Role / Timing Role: Central PSoC controller managing capacitive touch sensing, LED PWM dimming, USB HID reporting, and I²C communication with motor drivers. Use Value: Single-chip integration reduces BOM count by 7+ discrete ICs (touch controller, USB transceiver, LED driver, ADC, voltage monitor) and eliminates external crystal. | Use Scenario: Programmable USB keyboard with customizable key mapping and RGB backlighting. IC Role / Device Role / Timing Role: USB device controller with HID report descriptor generation, matrix scan engine, and PWM-controlled RGB LED driver. Use Value: On-chip USB PHY and 256-byte buffer enable zero-latency key press reporting; 48 GPIOs support 6×12 key matrix plus 18 LED channels. |
| Capacitive Liquid Level Sensor | Smart Appliance Control Board |
Use Scenario: Non-invasive liquid level detection in commercial coffee machines using parallel-plate capacitive probes. IC Role / Device Role / Timing Role: Analog front-end signal conditioner with 14-bit ADC, digital filter, and temperature-compensated baseline correction. Use Value: Six analog blocks allow concurrent measurement of 6 independent probe channels with <0.1% FS resolution, immune to EMI from heating elements. | Use Scenario: Washing machine main control board requiring motor phase control, water temperature monitoring, and user interface. IC Role / Device Role / Timing Role: System-on-chip managing triac firing timing, thermistor ADC conversion, capacitive button interface, and UART diagnostics. Use Value: Integrated watchdog, sleep timer, and LVD ensure fail-safe shutdown during power brownouts; 16 KB flash accommodates field-upgradable safety firmware. |
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 |
|---|---|---|---|
| CY8C24794-24LTXI | Same package and core, but lacks USB PHY and dedicated USB endpoints - uses external USB bridge IC. | No native USB HID support; requires additional component for USB connectivity. | Select when USB is not required and cost reduction is prioritized over integration. |
| CY8C24994-24LTXI | Same feature set, but offered in 100-ball VFBGA (5 mm × 5 mm) instead of 68-LQFP - higher pin density, smaller footprint. | Requires tighter PCB layout tolerances and reflow profile control due to fine-pitch BGA. | Select for space-constrained designs where board area is premium and assembly capability supports BGA. |
Compared with CY8C24794-24LTXI and CY8C24994-24LTXI, the CY8C24894-24LTXI uniquely delivers full-speed USB 2.0 with integrated PHY in LQFP packaging - balancing integration, debug accessibility, and manufacturability for mid-volume industrial HMI production.
Availability
CY8C24894-24LTXI is available at Aetrix Electronics and suitable for industrial HMI panels, USB HID peripherals, capacitive liquid level sensors, and smart appliance control boards requiring stable component supply across extended product lifecycles.
Supply support for CY8C24894-24LTXI 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, sensing, and connectivity applications, with focus on reliability and system integration.
The CY8C24x94 PSoC family targets cost-sensitive industrial and consumer HMI systems requiring configurable analog/digital peripherals, capacitive sensing, and USB connectivity - delivered in standard LQFP packages for ease of prototyping and manufacturing.
FAQ
Does CY8C24894-24LTXI require an external crystal for USB operation?
No. The device includes an internal main oscillator (IMO) calibrated to ±0.25% accuracy specifically for USB full-speed timing, eliminating the need for an external 12 MHz crystal. This calibration is factory-trimmed and retained across power cycles, ensuring consistent USB enumeration without additional components or layout area.
How many capacitive sensing electrodes can CY8C24894-24LTXI support simultaneously?
The device supports up to 48 capacitive sensing electrodes using its GPIO pins and built-in CapSense® hardware accelerator. All six analog PSoC blocks can be configured for charge-transfer-based sensing, enabling parallel scanning of multiple electrodes with automatic baseline tracking and noise rejection - verified in AN2397 and CapSense Designer toolchain.
What debug interfaces are supported on CY8C24894-24LTXI?
CY8C24894-24LTXI supports in-circuit debugging via the SWD (Serial Wire Debug) interface using the MiniProg3 programmer (CY8CKIT-002). It also supports ISSP through the XRES pin for firmware updates in deployed systems. No JTAG port is present; SWD provides full breakpoint, register, and memory access during development and field servicing.
Is CY8C24894-24LTXI compatible with PSoC Designer IDE?
Yes. CY8C24894-24LTXI is fully supported in Cypress PSoC Designer v5.4 and later, including drag-and-drop User Module configuration for analog/digital blocks, automatic code generation, and CapSense tuning tools. Legacy PSoC Creator does not support this M8C-based device family - use only PSoC Designer for development.
CY8C24894-24LTXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 56-VFQFN Exposed Pad
- Series:
- PSOC™1 CY8C24xxx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SPI, UART/USART, USB
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 50
- 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 47x14b; D/A 2x9b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C24894-24LTXI FAQ
1.How can I place an order for CY8C24894-24LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C24894-24LTXI 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 CY8C24894-24LTXI reliable?
The price and inventory of CY8C24894-24LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C24894-24LTXI is usually 5 days.
3.What payment methods are accepted for CY8C24894-24LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C24894-24LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C24894-24LTXI?
CY8C24894-24LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C24894-24LTXI 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 CY8C24894-24LTXI?
For technical support, including CY8C24894-24LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C24894-24LTXI requirements.
6.How does Aetrix verify that CY8C24894-24LTXI is sourced from the original manufacturer or authorized distributors?
All CY8C24894-24LTXI 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 CY8C24894-24LTXI meets industry standards.
7.What is the process for return or replacement of CY8C24894-24LTXI?
All CY8C24894-24LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C24894-24LTXI, 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 CY8C24894-24LTXI part is unused and in its original packaging.
Return procedure for CY8C24894-24LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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