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AT27C040-12TC - 4Mbit EPROM Memory IC

The AT27C040-12TC from Microchip Technology is a high-performance 4-megabit (512K x 8) EPROM (Erasable Programmable Read-Only Memory) designed for embedded systems and industrial electronics applications requiring reliable non-volatile memory storage.

Key Features & Benefits

  • High-Density Storage: 4Mbit capacity with 512K x 8 organization provides ample space for firmware, boot code, and configuration data
  • Fast Access Time: 120ns access time ensures responsive system performance
  • Wide Operating Range: 4.5V to 5.5V supply voltage with 0°C to 70°C operating temperature for industrial reliability
  • Space-Efficient Package: 32-TSOP surface mount package (18.40mm width) optimized for compact PCB designs
  • OTP Technology: One-Time Programmable EPROM ensures secure, permanent code storage
  • Parallel Interface: Standard parallel memory interface for straightforward integration

Ideal Applications

Perfect for embedded controllers, industrial automation systems, legacy equipment maintenance, firmware storage, boot ROM applications, and production-scale OEM projects requiring long lifecycle availability.

Why Choose HQICKEY?

We guarantee 100% authentic Microchip Technology components with full traceability, dedicated technical support, and reliable global fulfillment. Our semiconductor specialists provide lifecycle management and engineering assistance for your production needs.

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series
Packaging Tray |
Memory Type Non-Volatile
Memory Format EPROM
Technology EPROM - OTP
Memory Size 4Mbit
Memory Organization 512K x 8
Memory Interface Parallel
Clock Frequency -
Write Cycle Time - Word, Page -
Access Time 120 ns
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature 0°C ~ 70°C (TC)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 32-TFSOP (0.724", 18.40mm Width)
Supplier Device Package 32-TSOP