CY7C63001A and CY7C63101A are universal serial bus microcontrollers produced by Cypress Semiconductor Corporation. They are low-cost solutions for low-speed USB peripherals such as mouse, joystick, and gamepad. They conform to USB 1.5 Mbps Specification, Version 1.1, and support one device address and two endpoints (one control endpoint and one data endpoint). The microcontrollers feature an 8-bit RISC architecture with a 6MHz external ceramic resonator and 12MHz internal operation. The internal memory includes 128 bytes of RAM and 4KB of EPROM. It also has an integrated USB transceiver, up to 16 Schmitt trigger I/O pins with internal pull-up, and up to eight I/O pins with LED drive capability. It supports maskable interrupts on all I/O pins. Additionally, it includes an 8-bit free-running timer, watchdog timer (WDT), internal power-on reset (POR), Instant-On Now™ for Suspend and Periodic Wake-up Modes, improved output drivers to reduce EMI, and operates at a voltage range of 4.0V to 5.25VDC and temperature range of 0–70°C. It is available in space-saving and low-cost 20-pin PDIP, 20-pin SOIC, and 24-pin QSOP packages. The microcontrollers are supported by industry-standard programmers.
This manual describes the Cypress CY7C63001A and CY7C63101A 8‑bit RISC USB microcontrollers, which are low‑cost solutions for low‑speed USB peripherals such as mouse, joystick, and gamepad. It covers the device architecture, USB specification compliance, and the built‑in USB Serial Interface Engine.
Key sections include pin configurations, functional overview, memory organization, reset behavior, on‑chip timer, GPIO ports, and register summaries. The document also provides programming guidelines, power‑on reset handling, and the Instant‑on (suspend) feature for low‑power operation.
| Operating voltage | 4.0 V to 5.25 V |
|---|---|
| Operating temperature | 0 °C to 70 °C |
| Internal RAM | 128 bytes |
| Program memory (EPROM) | 4 KB |
| Clock source | 6‑MHz external ceramic resonator (doubled to 12 MHz) |
| USB speed | Low‑speed 1.5 Mbps (USB 1.1) |
| Endpoints | 2 (one control, one data) |
| GPIO pins | Up to 16 general‑purpose I/Os |
| LED‑drive pins | Up to 8 I/O pins with LED drive capability |
| Package options | 20‑pin PDIP, 20‑pin SOIC, 24‑pin QSOP |
The devices operate from 4.0 V up to 5.25 V.
It supports one device address and two endpoints – one control endpoint and one data endpoint.
A 6‑MHz external ceramic resonator is used, and its frequency is doubled internally to 12 MHz for the CPU.
They are offered in 20‑pin PDIP, 20‑pin SOIC, and 24‑pin QSOP packages.