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Infineon Technologies CY7C63833-LTXCT
- Part No.:
- CY7C63833-LTXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY7C63833-LTXCT.pdf
- Description:
- IC USB PERIPHERAL CTRLR 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,161
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Product details
Overview
CY7C63833-LTXCT from Cypress Semiconductor is an enCoRe™ II 8-bit flash microcontroller with integrated low-speed USB 2.0 and PS/2 peripheral interface, featuring a crystalless 24 MHz internal oscillator (±1.5%), dual 3.3 V regulators (125 mA main + dedicated USB PHY), up to 8 KB flash, 256 bytes RAM, and 20 GPIO pins with configurable drive strength (up to 50 mA sink). It targets HID peripherals such as optical mice and game controllers.
For engineers reviewing the CY7C63833-LTXCT datasheet, CY7C63833-LTXCT pinout, CY7C63833-LTXCT application, or CY7C63833-LTXCT equivalent, key selection criteria include USB/PS2 dual-mode auto-configuration, integrated D– pull-up and 3.3 V USB PHY regulation, capture timer support for RF input decoding, and in-system reprogrammability without external components.
Technical Context
The CY7C63833-LTXCT implements a Harvard-architecture M8C CPU running at up to 24 MHz, with USB Serial Interface Engine (SIE) compliant to USB 2.0 and HID 1.1. It supports one device address, one control endpoint (EP0), and two data endpoints (EP1, EP2).
Its timing subsystem includes a 12-bit programmable interval timer, a 16-bit free-running timer, and dual-channel 8-bit capture timers (rising/falling edge on two inputs) - enabling precise RF signal edge timing for wireless remote applications without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 2.0 Low-Speed (1.5 Mbps); USB-IF certified (TID #40000085) |
| CPU Core | M8C 8-bit Harvard architecture, up to 24 MHz operation |
| Memory | Up to 8 KB flash (with EEROM emulation), 256 bytes RAM |
| Regulators | Dedicated 3.3 V USB PHY regulator + 125 mA general-purpose 3.3 V regulator |
| I/O Capability | Up to 20 GPIO; 4 pins at 3.3 V logic; configurable 8/50 mA sink per designated pin |
| Timing Peripherals | 12-bit programmable interval timer, 16-bit free-running timer, dual 8-bit capture timers (separate rising/falling registers) |
| Power Modes | 10 µA sleep current; 10 mA typical @ 6 MHz active; wake-up timer with no external components |
Pinout & Package
Package: 24-pin QFN Sawn (5 mm × 5 mm, 0.5 mm pitch), RoHS-compliant, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | 4.0–5.5 V main supply; powers core, I/O, and regulators |
| VSS | GND | Digital ground reference for all circuitry |
| USB_D+ | USB differential input | Low-speed USB data line; internally terminated and biased |
| USB_D− | USB differential output | Low-speed USB data line with integrated 1.5 kΩ pull-up to 3.3 V USB regulator |
| P0.0–P0.7 | GPIO Port 0 | Individually configurable I/O; P0.2–P0.4 support dedicated interrupt vectors |
| P1.0–P1.3 | 3.3 V I/O Port | Fixed 3.3 V logic level; support CMOS/TTL input, open-drain or CMOS output |
| SCLK / P2.0 | SPI clock / GPIO | Configurable as SPI master/slave clock or general-purpose I/O |
| MISO / P2.1 | SPI data input / GPIO | Half-duplex mode supports single-line optical sensor interface |
| RESET | Active-low reset | Asynchronous reset input; debounced internally; tied high via external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Crystalless USB timing | Internal 24 MHz oscillator trimmed to ±1.5% via USB SOF feedback - eliminates external crystal and reduces BOM cost |
| Auto-configurable USB/PS2 mode | Detects host interface type at power-up and configures transceiver and firmware stack without GPIO control or external switches |
| Dual-regulator architecture | Separate 3.3 V supplies for USB PHY (noise-isolated) and system I/O (125 mA capable) - ensures robust signaling and external peripheral powering |
| Capture timer for RF inputs | Two independent 8-bit registers per input pin store both rising and falling edge timestamps - enables direct decoding of ASK/OOK remote signals |
| In-system reprogrammability | Firmware updates via USB without external programmer - supports field upgrades and secure dongle rekeying |
Applications
| Optical Mouse | Wireless Remote Control |
|---|---|
Use Scenario: Optical navigation engine with quadrature encoder output and button inputs. IC Role / Device Role / Timing Role: USB/PS2 peripheral controller handling HID report generation, motion data aggregation, and low-power suspend/resume. Use Value: Integrated 3.3 V regulator powers optical sensor; capture timers decode encoder edges; crystalless operation reduces PCB area and cost. | Use Scenario: 27/40/433 MHz ASK/OOK remote transmitting encoded button presses. IC Role / Device Role / Timing Role: RF signal edge detector and USB HID report generator using dual capture timers and built-in USB SIE. Use Value: Rising/falling timestamp registers eliminate external timing ICs; 10 µA sleep current extends battery life; USB enumeration enables plug-and-play PC pairing. |
| Gamepad | POS Terminal Keypad |
Use Scenario: Multi-button, analog stick, and vibration motor interface for console/PC gaming. IC Role / Device Role / Timing Role: HID composite device controller managing multiple report descriptors (buttons, axes, force feedback). Use Value: 20 GPIO support matrix scanning and motor drivers; 50 mA sink capability drives small DC motors directly; dual endpoints enable concurrent IN/OUT traffic. | Use Scenario: Secure PIN entry keypad with tamper detection and encrypted USB communication. IC Role / Device Role / Timing Role: Secure peripheral controller performing local encryption, button debouncing, and HID report formatting. Use Value: In-system reprogrammability allows firmware patching for cryptographic updates; low-voltage detect interrupts trigger secure wipe on battery drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-speed USB peripheral controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C63832-LTXCT | Same die, 16-pin SOIC package; fewer GPIO (14 total), no 3.3 V I/O pins | Limited I/O count restricts multi-function HID designs; unsuitable for 3.3 V sensor interfacing | Select when board space is constrained and full GPIO count not required |
| CY7C63834-LTXCT | Same feature set, 32-pin QFN package; adds 4 extra GPIO and enhanced ESD protection (±8 kV HBM) | Better suited for industrial-grade remotes or medical HID devices requiring higher robustness | Select for designs needing extended I/O or higher ESD immunity in harsh environments |
Compared with CY7C63832-LTXCT, the CY7C63833-LTXCT provides full 20-GPIO flexibility and 3.3 V I/O for sensor integration; versus CY7C63834-LTXCT, it offers identical functionality in a smaller 24-pin footprint - optimal for cost-sensitive consumer HID designs where ESD margin is secondary.
Availability
CY7C63833-LTXCT is available at Aetrix Electronics and suitable for optical mouse development, wireless remote control design, and POS terminal keypad manufacturing requiring stable component supply across production lifecycles.
Supply support for CY7C63833-LTXCT 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 mixed-signal programmable solutions for USB, automotive, and industrial applications, with global R&D and manufacturing infrastructure.
The enCoRe™ II product line was engineered specifically for cost-sensitive, low-power USB and PS/2 peripheral controllers - integrating oscillators, regulators, and transceivers to minimize external components in HID and human-interface applications.
FAQ
Does CY7C63833-LTXCT require an external crystal for USB compliance?
No. It uses a crystalless 24 MHz internal oscillator trimmed to ±1.5% accuracy via USB Start-of-Frame (SOF) packet feedback, fully satisfying USB Low-Speed timing requirements without external timing components.
Can CY7C63833-LTXCT operate in both USB and PS/2 modes simultaneously?
No. It auto-configures to either USB or PS/2 mode at power-up based on host handshake, but operates exclusively in one protocol at a time. Dual-mode capability means seamless firmware-level switching without hardware changes or GPIO control.
What is the maximum sink current supported on GPIO pins?
Designated GPIO pins (P0.0–P0.3, P1.0–P1.3) support configurable 50 mA sink current; all other GPIO pins provide fixed 2 mA sink. Source current is fixed at 2 mA across all pins. Drive strength is configured per-port via register settings.
Is in-system programming supported over USB without additional hardware?
Yes. The device includes a factory-programmed bootloader that enables full flash reprogramming via standard USB HID class commands - no external programmer, JTAG interface, or debug header is required for firmware updates in end-user devices.
CY7C63833-LTXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- GPIO, SPI
- Standards:
- USB 2.0
- Voltage - Supply:
- 4V ~ 5.5V
- Current - Supply:
- 40mA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 32-QFN (5x5)
- Grade:
- -
- Qualification:
- -
CY7C63833-LTXCT FAQ
1.How can I place an order for CY7C63833-LTXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C63833-LTXCT 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 CY7C63833-LTXCT reliable?
The price and inventory of CY7C63833-LTXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C63833-LTXCT is usually 5 days.
3.What payment methods are accepted for CY7C63833-LTXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C63833-LTXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C63833-LTXCT?
CY7C63833-LTXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C63833-LTXCT 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 CY7C63833-LTXCT?
For technical support, including CY7C63833-LTXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C63833-LTXCT requirements.
6.How does Aetrix verify that CY7C63833-LTXCT is sourced from the original manufacturer or authorized distributors?
All CY7C63833-LTXCT 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 CY7C63833-LTXCT meets industry standards.
7.What is the process for return or replacement of CY7C63833-LTXCT?
All CY7C63833-LTXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C63833-LTXCT, 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 CY7C63833-LTXCT part is unused and in its original packaging.
Return procedure for CY7C63833-LTXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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