Infineon Technologies CY7C63001A-PXC

Overview

CY7C63001A-PXC from Cypress Semiconductor is an 8-bit RISC USB microcontroller optimized for low-speed (1.5 Mbps) human-interface devices, featuring integrated USB transceiver, 4 Kbytes of OTP EPROM, 128 bytes of RAM, and 12 GPIOs (8× low-current P0 + 4× 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-ideal for wired optical mice.

For engineers reviewing the CY7C63001A-PXC datasheet, CY7C63001A-PXC pinout, CY7C63001A-PXC application, or CY7C63001A-PXC equivalent, key selection criteria include USB 1.1 low-speed compliance, OTP memory security fuse, programmable I/O sink current per pin, suspend/wake-up via CEXT, and PDIP/SOIC package compatibility with legacy PCB layouts.

Technical Context

The CY7C63001A implements a Harvard-architecture RISC core with 35 USB-optimized instructions and dedicated USB Serial Interface Engine (SIE) supporting control and data endpoints. Its dual-port I/O architecture separates low-current Schmitt-trigger inputs (P0.0–P0.7) from high-current LED-driving outputs (P1.0–P1.3), enabling direct photo-transistor/LED interfacing in mouse designs.

Reset behavior is managed by three independent sources-Power-On Reset (POR), Watchdog Timer Reset (WDR), and USB Bus Reset-with cause detection via Status and Control Register (0xFF). Suspend mode disables oscillator and timers while retaining USB receiver and GPIO/Cext interrupt wake capability, achieving Instant-On Now™ functionality.

Key Specifications

Pinout & Package

Available in 20-pin PDIP and 20-pin SOIC packages; CY7C63001A-PXC uses the PDIP variant. Package dimensions conform to JEDEC MS-001, with 0.3-inch body width and 0.1-inch lead pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C63101A-PC, CY7C63001A-PXC offers lower pin count and cost for simpler HID designs; versus FT311D, it provides full firmware control over USB descriptors, timing, and I/O behavior - essential for differentiated peripheral features.

Availability

CY7C63001A-PXC is available at Aetrix Electronics and suitable for optical mouse designs, USB joystick manufacturing, and industrial keypad production requiring stable component supply and long-term obsolescence management.

Supply support for CY7C63001A-PXC 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 USB, memory, and programmable system-on-chip solutions for embedded and human-interface applications.

CY7C63001A belongs to Cypress's legacy USB microcontroller product line, designed specifically for cost-sensitive, low-speed USB HID peripherals with integrated transceivers and OTP firmware storage.

FAQ

Is CY7C63001A-PXC still in active production?

CY7C63001A-PXC is discontinued by Infineon but remains available through Aetrix Electronics' authorized legacy component channel with verified date-code stock and full traceability. We maintain inventory of original-packaged units with valid lot traceability and provide lifecycle documentation upon request.

What programming tools are supported for CY7C63001A-PXC OTP memory?

Cypress CY3650 programmer and compatible third-party OTP programmers (e.g., BP Microsystems Series 4) support CY7C63001A-PXC. Programming requires VPP = 12.5 V applied to Pin 8, with strict timing adherence to the 38-08026 Rev. *A specification - no in-circuit reprogramming is possible after initial OTP write.

Can CY7C63001A-PXC operate from USB bus power alone?

Yes - CY7C63001A-PXC draws ≤25 mA typical at 5 V and operates across 4.0–5.25 V, meeting USB low-power device requirements. VCC must be decoupled with ≥1 µF ceramic capacitor near Pin 12; no external LDO or regulator is needed for standard bus-powered mouse applications.

Does CY7C63001A-PXC support USB suspend/resume without external components?

Yes - suspend mode is entered via software write to bit 3 of SCR (0xFF); wake-up occurs automatically on D+/D– activity, any GPIO edge, or CEXT pin transition. Only CEXT wake-up requires an external RC network; all other wake sources are fully internal and require no added components.