MICROCHIP AT27C020-70TI

The AT27C020 is a low-power, high-performance 2,097,152-bit OTP EPROM organized as 256K × 8 bits. It requires only a single 5V supply in normal read mode operation. Any byte can be accessed in less than 55 ns, eliminating the need for speed-reducing wait states in high-performance microprocessor systems.

In read mode, the AT27C020 typically draws 8 mA. Standby mode supply current is typically less than 10 μA.

The AT27C020 is available in a variety of industry-standard, JEDEC-approved OTP plastic PDIP, PLCC, and TSOP packages. All devices feature two-line control (CE, OE), giving designers the flexibility to avoid bus contention.

With 256K bytes of storage capacity, the AT27C020 allows reliable firmware storage and enables systems to access firmware without the delays associated with mass storage media.

Atmel's 27C020 incorporates additional features to ensure high-quality and efficient production use. The Rapid™ programming algorithm reduces the time required to program the device and guarantees reliable programming. Programming time is typically only 100 μs/byte. An integrated product identification code allows electronic identification of the device and manufacturer. This feature is used by industry-standard programming equipment to select the appropriate programming algorithm and voltage.

• Fast read access time - 55 ns
• Low-power CMOS operation
• Maximum standby current 100 μA
• Maximum active current 25 mA at 5 MHz
• JEDEC standard packages
• 32-pin 600-mil PDIP
• 32-pin PLCC
• 32-pin TSOP
• 5V ± 10% supply voltage
• High-reliability CMOS technology
• 2000V ESD protection
• 200 mA latch-up immunity
• Rapid™ programming algorithm - 100 μs/byte (typical)
• CMOS and TTL compatible inputs/outputs
• Integrated product identification code
• Commercial, industrial, and automotive temperature ranges