The Microchip AT27C020 is a low-power, high-performance, 2-megabit One Time Programmable EPROM organized as 256-Kbit x 8.  Requiring a single 5V power supply, in normal read mode operation typical power consumption is only 8 mA and standby mode supply current is typically less than 10 μA. Any byte can be accessed in less than 55 ns, thus eliminating the need for speed-reducing WAIT states on high performance microprocessor systems.

• 2-Mbit (256-Kbit x 8)

• Low-power CMOS operation

• Standard power supply range, 5V +/-10%
• 100 μA max standby
•  25 mA max active at 5 MHz
• Parallel Interface
• 55 ns access time
• Pin compatible with Microchip AT27C010
• High-reliability CMOS technology
• 2,000V ESD protection
• 200 mA latchup immunity
• Rapid programming algorithm – 100 μs/byte (typical)
• CMOS and TTL compatible inputs and outputs
• Integrated product identification code
• Industrial Temperature Range: -40°C to 85°C
• Available in Green (Pb/Halide-free) Packaging Only
• 32-lead, Plastic J-leaded Chip Carrier (PLCC)
• 32-lead, 0.600" wide, plastic, dual inline package (PDIP)