MICROCHIP AT27C1024-12PI

The AT27C1024 is a low-power, high-performance 1,048,576-bit OTP EPROM organized as 64K×16 bits. In normal read mode operation, it requires only a single 5V supply. Any word can be accessed in less than 45 ns without the use of speed-reducing wait states. This 16-bit organization makes the device ideally suited for high-performance 16-bit and 32-bit microprocessor systems.

In read mode, the AT27C1024 typically draws 15 mA. Standby mode supply current is typically less than 10 μA.

The AT27C1024 is offered in industry-standard JEDEC-approved OTP plastic PDIP, PLCC, and VSOP packages. The device features two-line control (CE, OE) to eliminate bus contention in high-speed systems.

With 64K words of high-density storage, the AT27C1024 allows firmware to be stored reliably and accessed by the system without the latency of mass storage media.

Atmel's 27C1024 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/word. An integrated product identification code allows the device and manufacturer to be electronically identified. This feature is used by industry-standard programming equipment to select the appropriate programming algorithm and voltage.

• Fast read access time - 45 ns
• Low-power CMOS operation
• 100 μA max standby current
• 30 mA max active current at 5 MHz
• JEDEC standard packages
• 40-pin 600-mil PDIP
• 44-pin PLCC
• 40-pin VSOP (10 mm × 14 mm)
• Direct upgrade from 512K (AT27C516) EPROM
• 5V ± 10% supply voltage
• High-reliability CMOS technology
• 2000V ESD protection
• 200 mA latch-up immunity
• Rapid™ programming algorithm - 100 μs/word (typical)
• CMOS and TTL compatible inputs and outputs
• Integrated product identification code
• Commercial, industrial, and automotive temperature ranges