CY7C235A-40PC

Product Overview

The CY7C235A-40PC from Cypress Semiconductor Corp is an 8Kbit non-volatile EPROM memory IC with a parallel interface and a 1K x 8 organization. It is a one-time programmable device intended for systems that require a fixed code or data map to be retained without power. The specified access time is 40 ns, and the device operates from a 4.5V to 5.5V supply. Its operating temperature range is 0°C to 70°C ambient. The device can be used in embedded logic, legacy controllers, and other designs where a parallel ROM image is read by a processor, microcontroller, or state machine.

Key Features

• 8Kbit non-volatile memory capacity
• 1K x 8 memory organization
• Parallel memory interface
• 40 ns access time
• 4.5V to 5.5V supply voltage range
• 0°C to 70°C ambient operating temperature range
• One-time programmable EPROM technology

Applications

• Fixed code storage in processor-based embedded systems
• Lookup tables for control logic and instrumentation functions
• Read-only data maps in legacy controller designs
• Configuration memory for parallel-bus devices

Design & Procurement Notes

Designers should match the 1K x 8 organization and parallel interface to the host address, data, and control signal plan. The 40 ns access time should be considered during read-cycle timing analysis, especially when interfacing to processors or state machines with tight bus timing. The 4.5V to 5.5V supply range and 0°C to 70°C ambient operating range should be checked against the intended board environment. Because the device uses one-time programmable EPROM technology, the programmed content should be verified before final assembly, since it is not intended for repeated field modification.