Manufacturer Part Number
AT27C256R-90JI
Manufacturer
Microchip Technology
Introduction
The AT27C256R-90JI is an EPROM (Electrically Programmable Read-Only Memory) chip designed for storing code that does not need to change over the product's lifetime.
Product Features and Performance
Non-Volatile Memory
EPROM - OTP (One-Time Programmable) Technology
Memory Size of 256Kbit
Parallel Memory Interface
Access Time of 90 ns
Surface Mount Technology
Product Advantages
Data retention through power cycles
Directly compatible with microprocessor buses
Stable and reliable long-term storage
Quick access time
Key Technical Parameters
Memory Size: 256Kbit
Memory Organization: 32K x 8
Access Time: 90 ns
Voltage - Supply: 4.5V ~ 5.5V
Operating Temperature Range: -40°C ~ 85°C
Quality and Safety Features
Extended operating temperature range suitable for industrial applications
Designed to last with high write endurance
Compatibility
Direct interface with popular microprocessor buses
Can replace similar EPROM devices with adjustments to software/hardware as necessary
Application Areas
Embedded systems
Industrial controls
Telecommunications
Automotive electronics
Product Lifecycle
Obsolete product
Potential availability of replacements or upgrades subject to Manufacturer's inventory
Several Key Reasons to Choose This Product
High reliability for critical applications
Support for legacy systems that require EPROM technology
Consistent performance over wide temperature ranges
Proven technology with a track record of stable operation