Description

The AT27C1024 is a low-power, high-performance 1,048,576 bit one-time programmable read-only memory (OTP EPROM) organized 64K by 16 bits. It requires only one 5V power supply in normal read mode operation.

Any word can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states. The by-16 organization makes this part ideal for high-performance 16- and 32-bit microprocessor systems.

Specifications and Features

- Fast Read Access Time: 45 ns

- Low Power CMOS Operation

- Standby current: 100µA max.

- Active current at 5 MHz: 30mA max.

- JEDEC Standard Packages:

       - 40-Lead 600-mil PDIP

       - 44-Lead PLCC

       - 40-Lead TSOP (10 mm x 14 mm)

- Direct Upgrade from 512K (AT27C516) EPROM

- 5V ± 10% Power Supply

- High Reliability CMOS Technology

       - 2000V ESD Protection

       - 200mA Latchup Immunity

- Rapid™ Programming Algorithm: 100µs/word (typical)

- CMOS and TTL Compatible Inputs and Outputs

- Integrated Product Identification Code

- Commercial and Industrial Temperature Ranges

Application Scenarios

The AT27C1024 memory is commonly used in high-performance 16- and 32-bit microprocessor systems. It is especially suitable for applications that require fast read access time and low power consumption.

Comparison

- Low power consumption

- Fast read access time

- High reliability

- Compatible with CMOS and TTL inputs and outputs

- One-time programmable; cannot be reprogrammed