Microchip AT29C040A-12PC

512K x 8120 нс0°C ~ 70°C (TC)

Overview

Features • Fast Read Access Time - 100 ns • 5-Volt-Only Reprogramming • Sector Program Operation Single Cycle Reprogram (Erase and Program) 2048 Sectors (256 bytes/sector) Internal Address and Data Latches for 256-Bytes • Internal Program Control and Timer • Hardware and Software Data Protection • Two 16 KB Boot Blocks with Lockout • Fast Sector Program Cycle Time - 10 ms • DATA Polling for End of Program Detection • Low Power Dissipation 40 mA Active Current 100 µA CMOS Standby Current • Typical Endurance > 10,000 Cycles • Single 5V ± 10% Supply • CMOS and TTL Compatible Inputs and Outputs

Description The AT29C040A is a 5-volt-only in-system Flash Programmable and Erasable Read Only Memory (PEROM). Its 4 megabits of memory is organized as 524,288 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS EEPROM technology, the device offers access times up to 100 ns, and a low 220 mW power dissipation. When the device is deselected, the CMOS standby current is less than 100 µA. The device endurance is such that any sector can typically be written to in excess of 10,000 times. The programming algorithm is compatible with other devices in Atmel’s 5-volt-only Flash family.

Features

Applications

• telecommunications
• workstations,
• DVD disk buffer
• data buffer
• nonvolatile BIOS memory
• Camcorders
• embedded logic
• eDRAM
• graphics card
• hard disk drive (HDD)