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Infineon Technologies CY7C63101C-QXC
- Part No.:
- CY7C63101C-QXC
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
CY7C63101C-QXC.pdf
- Description:
- IC MCU 4K USB MCU LS 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,347
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Product details
Overview
CY7C63101C-QXC from Cypress Semiconductor is a low-speed USB 1.1-compliant 8-bit RISC microcontroller with integrated USB transceiver, 4 Kbytes of OTP EPROM, 128 bytes of RAM, and 16 Schmitt-trigger GPIOs (8 low-current P0 + 8 high-current P1). It operates at 12 MHz internal clock derived from a 6-MHz ceramic resonator and supports one device address with two endpoints (control + data) for HID-class peripherals.
For engineers reviewing the CY7C63101C-QXC datasheet, CY7C63101C-QXC pinout, CY7C63101C-QXC application, or CY7C63101C-QXC equivalent, key selection criteria include its 16-GPIO count in 24-pin QSOP, LED-driving capability on Port 1, CEXT-based suspend/wake-up timing, and OTP programmability for cost-sensitive human-interface devices.
Technical Context
The CY7C63101C implements a Harvard-architecture RISC core with 35 USB-optimized instructions and dual-stack pointers (PSP/DSP) for efficient firmware execution. Its USB Serial Interface Engine (SIE) handles low-speed (1.5 Mbps) protocol framing, endpoint management, and CRC generation without CPU intervention.
Memory is partitioned into 4 Kbytes of EPROM (with 16-byte interrupt vector table) and 128-byte RAM (including dedicated 8-byte FIFOs per endpoint). The CEXT pin enables RC-timed wake-up from suspend mode, while programmable I/O sink current (16 levels per pin) supports direct LED drive and photo-transistor interfacing in optical mouse designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Low-speed only (1.5 Mbps), compliant with USB 1.1 - limits use to HID peripherals, excludes full-speed devices. |
| Microcontroller Core | 8-bit Harvard RISC with 35 instructions - optimized for minimal code size and deterministic USB interrupt latency. |
| Memory | 4 Kbytes EPROM + 128 bytes RAM - sufficient for basic HID firmware; OTP prevents field reprogramming. |
| I/O Pins | 16 total GPIOs (P0.0–P0.7 + P1.0–P1.7), all with programmable pull-ups and edge-triggered interrupts - enables direct connection to switches, encoders, and optical sensors. |
| LED Drive | Port 1 pins support up to 8 concurrent LED outputs with 16-level sink current control - eliminates external drivers in gamepad/mouse PCBs. |
| Power Supply | 4.0 V to 5.25 V operation - compatible with standard USB VBUS without regulation, simplifying power design. |
| Suspend Wake-up | CEXT pin with RC timing circuit - provides periodic wake-up from suspend mode with sub-100 µA average current. |
Pinout & Package
Package: 24-pin QSOP (0.154" wide), RoHS-compliant, surface-mountable with 0.635 mm pitch. Thermal pad not present; standard reflow profile applies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0–P0.7 | Low-current bidirectional I/O | 8 pins with Schmitt-trigger inputs and programmable pull-ups; suitable for switches, encoders, and logic sensing. |
| P1.0–P1.7 | High-current bidirectional I/O | 8 pins with LED-drive capability (16-level sink current); used for status indicators or optical emitter control. |
| D+, D– | USB differential data lines | Bidirectional low-speed USB interface; requires external 1.5-kΩ pull-up on D+ to VCC for device enumeration. |
| XTALIN / XTALOUT | Ceramic resonator interface | Accepts 6-MHz fundamental-mode ceramic resonator; internal doubler generates 12-MHz system clock. |
| CEXT | RC timing input/output | Open-drain output with Schmitt trigger input; connects to external R-C network for suspend-mode wake-up timing. |
| VCC / VSS | Power supply / ground | Single 4.0–5.25 V supply; no separate analog/digital rails - simplifies layout but requires clean bypassing. |
| VPP | EPROM programming voltage | 12.5 V required only during OTP programming; must be tied to GND during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Instant-On Now™ Suspend/Wake-up | Enters sub-100 µA suspend mode and wakes within 256 µs via USB activity, GPIO edge, or CEXT RC timeout - enables battery-powered HID longevity. |
| Integrated USB Transceiver | Eliminates external PHY; supports low-speed signaling directly on D+/D– with internal termination and slew-rate control - reduces BOM and EMI. |
| Programmable I/O Sink Current | 16 discrete current levels per P1 pin (up to ~20 mA) - allows precise LED brightness tuning and direct drive of common-cathode indicators. |
| USB-Optimized Instruction Set | 35 instructions including USB-specific load/store and endpoint-handling ops - reduces firmware size and interrupt latency vs. generic 8-bit cores. |
| Dual Stack Pointers (PSP/DSP) | Separate program and data stack pointers prevent USB FIFO corruption during nested interrupts - ensures reliable HID report transmission under load. |
Applications
| Optical Computer Mouse | USB Gamepad |
|---|---|
|
Use Scenario: Optical sensor tracking with X/Y delta reporting over USB HID protocol. IC Role / Device Role / Timing Role: Primary USB HID controller managing optical encoder interface, button scanning, and report packetization. Use Value: Direct P1 pin LED drive powers infrared emitter; CEXT wake-up polls sensor at 100 Hz during suspend, achieving <100 µA average current. |
Use Scenario: Multi-button, analog stick, and vibration motor control in wired USB gaming peripheral. IC Role / Device Role / Timing Role: Central USB interface and I/O manager handling button debouncing, stick ADC sampling (via external converter), and motor enable timing. Use Value: 16 GPIOs support 12 buttons + 2 analog stick axes + 2 motor controls; programmable sink current drives haptic feedback LEDs without external drivers. |
| Joystick Interface | Industrial Control Pendant |
|
Use Scenario: Precision 2-axis analog joystick with push-button triggers and hat switch for flight simulation hardware. IC Role / Device Role / Timing Role: USB HID report generator with real-time polling of potentiometer wipers and mechanical switches. Use Value: Schmitt-trigger inputs reject noise from long cable runs; P0 pull-ups eliminate external resistors for switch matrix scanning. |
Use Scenario: Factory-floor pendant with emergency stop, mode select, and jog controls connected to CNC or PLC systems. IC Role / Device Role / Timing Role: Robust USB HID interface providing E-stop monitoring, LED status feedback, and momentary command transmission. Use Value: Watchdog timer ensures fail-safe reset on firmware hang; industrial temperature range (0°C to 70°C) supports uncooled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB HID microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AN1083 (Microchip) | 8-bit PIC with USB 1.1 stack in firmware; no integrated SIE or transceiver - requires external PHY and more flash/RAM. | Higher BOM cost and larger PCB footprint due to external components; longer firmware development cycle. | Select when existing PIC toolchain familiarity outweighs integration benefits and production volume justifies added complexity. |
| FT900 (FTDI) | 32-bit RISC-V core with USB 2.0 HS support, 64 KB SRAM, and integrated PHY - significantly higher performance and memory. | Overqualified for basic HID; targets composite devices with audio/video/data interfaces. | Select only if future-proofing for USB 2.0 or multi-function HID+data bridge functionality is required in next-gen design. |
Compared with AN1083 and FT900, the CY7C63101C-QXC delivers lowest system cost and smallest footprint for dedicated low-speed HID peripherals, trading raw performance and flexibility for proven integration, OTP security, and mature toolchain support.
Availability
CY7C63101C-QXC is available at Aetrix Electronics and suitable for optical mouse designs, USB gamepad manufacturing, and industrial control pendant development requiring stable component supply and long-term production continuity.
Supply support for CY7C63101C-QXC 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 mixed-signal ICs for connectivity, human interface, and programmable systems.
The CY7C63xx family was designed specifically for cost-sensitive, low-power USB human-interface devices, emphasizing integrated transceivers, OTP security, and minimal external component count.
FAQ
Is CY7C63101C-QXC compatible with USB 2.0 hosts?
Yes, it operates in low-speed mode (1.5 Mbps) and is fully backward-compatible with all USB 2.0 and USB 3.x hosts that support the USB 1.1 specification. It does not support full-speed (12 Mbps) or high-speed modes, and enumerates only as a low-speed device.
Can the EPROM be reprogrammed after initial programming?
No - the CY7C63101C-QXC uses One-Time Programmable EPROM. Once programmed, the code cannot be erased or rewritten. Firmware updates require replacing the physical device. Security fuse bit prevents readback of programmed contents.
What is the function of the CEXT pin beyond suspend wake-up?
The CEXT pin serves exclusively as an open-drain output with Schmitt-trigger input for RC-based timing. It generates a rising-edge interrupt upon capacitor discharge threshold crossing and cannot be used as a general-purpose I/O or communication interface.
Does CY7C63101C-QXC support self-powered or bus-powered operation?
It supports bus-powered operation only, drawing power directly from USB VBUS (4.0–5.25 V). No internal voltage regulator is present, and the device lacks VBUS sensing or suspend current isolation circuitry required for true self-powered configurations.
CY7C63101C-QXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- M8™
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- USB Microcontroller
- Core Processor:
- M8A
- Program Memory Type:
- OTP (4kB)
- Controller Series:
- CY7C631xx
- RAM Size:
- 128 x 8
- Interface:
- USB
- Number of I/O:
- 16
- Voltage - Supply:
- 4V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QSOP
CY7C63101C-QXC FAQ
1.How can I place an order for CY7C63101C-QXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C63101C-QXC 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 CY7C63101C-QXC reliable?
The price and inventory of CY7C63101C-QXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C63101C-QXC is usually 5 days.
3.What payment methods are accepted for CY7C63101C-QXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C63101C-QXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C63101C-QXC?
CY7C63101C-QXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C63101C-QXC 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 CY7C63101C-QXC?
For technical support, including CY7C63101C-QXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C63101C-QXC requirements.
6.How does Aetrix verify that CY7C63101C-QXC is sourced from the original manufacturer or authorized distributors?
All CY7C63101C-QXC 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 CY7C63101C-QXC meets industry standards.
7.What is the process for return or replacement of CY7C63101C-QXC?
All CY7C63101C-QXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C63101C-QXC, 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 CY7C63101C-QXC part is unused and in its original packaging.
Return procedure for CY7C63101C-QXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C63101C-QXC Tags
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CYPD3175-24LQXQ
Infineon Technologies
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SLB9672VU20FW1523XTMA1
Infineon Technologies
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SLB9670VQ20FW785XTMA1
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AT97SC3204-U2A1A-20
Microchip Technology
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AT97SC3204-U2A1A-10
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SLM9670AQ20FW1311XTMA1
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SLB9672XU20FW1613XTMA1
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SLB9672AU20FW1613XTMA1
Infineon Technologies
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SLB9673AU20FW2613XTMA1
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