Description
The AT27C020 is a low-power, high-performance, 2,097,152-bit, one-time programmable read-only memory (OTP EPROM) organized as 256K by 8 bits. It requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 55 ns, eliminating the need for speed-reducing WAIT states on high performance microprocessor systems. In read mode, the AT27C020 typically consumes 8 mA. Standby mode supply current is typically less than 10 µA.

FEATUREs
• Fast Read Access Time – 55 ns
• Low-power CMOS Operation
    – 100 µA Max Standby
    – 25 mA Max Active at 5 MHz
• JEDEC Standard Packages
    – 32-lead PDIP
    – 32-lead PLCC
    – 32-lead TSOP
• 5V ± 10% Supply
• High-reliability CMOS Technology
    – 2,000V ESD Protection
    – 200 mA Latch-up Immunity
• Rapid Programming Algorithm – 100 µs/Byte (Typical)
• CMOS- and TTL-compatible Inputs and Outputs
• Integrated Product Identification Code
• Industrial and Automotive Temperature Ranges
• Green (Pb/Halide-free) Packaging Option