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