AT29C512-12JI, 512-Kbit Flash Memory, PLCC-32

The AT29C512-12JI is a 512-Kbit (64K × 8-bit) Flash memory designed for high-reliability and non-volatile data storage in embedded systems, consumer electronics, and industrial applications. It provides fast 120ns access times, making it ideal for firmware storage and execution-in-place (XIP) operations.

Unlike traditional EPROMs, the AT29C512 does not require high programming voltages. Instead, it operates with a single 5V supply, supporting in-system reprogramming through sector-based write cycles. The 128-byte sector programming allows efficient data updates, reducing unnecessary erase cycles.

To prevent accidental modifications, the memory features hardware and software-based data protection mechanisms, including VCC sense protection and program inhibit functions. Additionally, it supports DATA polling and toggle-bit detection to indicate the end of a programming cycle.

The low power consumption and compact PLCC-32 package make this memory ideal for automotive, industrial automation, networking devices, and legacy computing applications.

• 512-Kbit Flash Memory: Organized as 64K × 8-bit, offering reliable non-volatile storage for firmware and embedded applications.
• Fast Access Time: Provides a 120ns read access time, enabling efficient data retrieval for high-performance systems.
• 5V Only Reprogramming: Supports in-system reprogramming without requiring high voltages, simplifying integration.
• Sector-Based Programming: Features 128-byte sector architecture, with internal address and data latches for efficient programming.
• Low Power Consumption: Operates with 50mA active current and 100µA standby current, making it ideal for low-power applications.
• Enhanced Data Protection: Includes hardware and software write protection, ensuring secure data storage.