Infineon Technologies CY7C63613-SC

Overview

CY7C63613-SC from Cypress Semiconductor is an 8-bit RISC USB microcontroller with integrated USB 1.1 transceiver, 8 KB OTP EPROM, 256 bytes RAM, 12-bit free-running timer, and 16 GPIO pins (12×7 mA sink, 4×12 mA sink for LED drive), operating at 12 MHz internal clock from a 6 MHz external resonator in 24-pin SOIC package for HID peripheral applications.

For engineers reviewing the CY7C63613-SC datasheet, CY7C63613-SC pinout, CY7C63613-SC application, or CY7C63613-SC equivalent, this device supports USB HID enumeration with three endpoints, PS/2 auto-configuration, vectored interrupts (USB reset, timer, GPIO, DAC), and low-EMI clock generation - critical for mouse, gamepad, and joystick firmware integration.

Technical Context

The CY7C63613-SC implements a Harvard-architecture RISC core optimized for USB 1.1 low-speed (1.5 Mbps) protocol handling, featuring dedicated USB Serial Interface Engine (SIE) with endpoint address register (0x10h), EPA0 mode register (0x12h), and counter registers (0x11h/0x13h/0x15h). It supports automatic bus reset detection and endpoint interrupt vectoring.

Its I/O subsystem includes four configurable ports (Port 0–3), each with independent direction and pull-up control via register 0x08h, interrupt enable per port (0x04h–0x07h), and DAC port (0x30h); GPIO interrupts share a single vector but are individually maskable, enabling precise event-driven peripheral control without polling.

Key Specifications

Pinout & Package

Package: 24-pin SOIC (Small Outline Integrated Circuit), 300 mil width, JEDEC MS-013AC standard; lead-free and RoHS-compliant per ordering code suffix.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB HID controller applications.

Compared with FT230X and PIC18F14K50, the CY7C63613-SC delivers turnkey USB HID functionality with integrated transceiver, OTP firmware, and LED-capable I/O - reducing component count and PCB area for cost-sensitive, volume HID peripherals where firmware updates are unnecessary.

Availability

CY7C63613-SC is available at Aetrix Electronics and suitable for computer peripheral mice, USB gamepads, industrial joysticks, and PS/2-to-USB adapters requiring stable component supply and long-term production continuity.

Supply support for CY7C63613-SC 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 and programmable system-on-chip solutions for USB, memory, and programmable logic applications.

The CY7C63613 belongs to Cypress's CY7C63xxx USB microcontroller family, engineered specifically for low-cost, low-power HID peripheral implementations with minimal external components and no external crystal requirement.

FAQ

Is the CY7C63613-SC compatible with USB 2.0 hosts?

Yes, it is backward compatible with all USB 2.0 and later hosts in low-speed mode (1.5 Mbps), as defined by the USB 1.1 specification. It does not support full-speed (12 Mbps) or high-speed modes. Host enumeration relies on the 1.5 kΩ pull-up resistor on D+, and the device identifies itself as a low-speed device during reset signaling.

Can the 8 KB EPROM be reprogrammed after initial programming?

No. The CY7C63613-SC uses One-Time Programmable (OTP) EPROM. Firmware is permanently written during manufacturing or programming using industry-standard programmers (e.g., BP Microsystems, Data I/O). No field updates or erasure are possible - design validation must be completed before final programming.

What is the maximum sink current per GPIO pin on Port 3?

Each Port 3 pin (P3.0–P3.3) provides 12 mA typical sink current at VDD = 5 V and TA = 25°C, as specified in the DC Characteristics table (Section 17.0). This allows direct driving of standard 20 mA LEDs at reduced brightness or multiple parallel LEDs with shared current limiting.

Does the CY7C63613-SC require an external crystal?

No. It requires only a 6 MHz ceramic resonator connected to OSC1/OSC2 - not a crystal. The internal clock generator derives a clean 12 MHz CPU clock and USB timing signals from this resonator, eliminating crystal cost, layout sensitivity, and EMI concerns associated with fundamental-mode crystals.