View at29c1024 datasheet:

AT29C1024 Features • Fast Read Access Time - 70 ns • 5-Volt-Only Reprogramming • Sector Program Operation Single Cycle Reprogram (Erase and Program) 512 Sectors (128 words/sector) Internal Address and Data Latches for 128 Words • Internal Program Control and Timer • Hardware and Software Data Protection • Fast Sector Program Cycle Time - 10 ms 1 Megabit • DATA Polling for End of Program Detection • Low Power Dissipation (64K x 16) 60 mA Active Current 200 µA CMOS Standby Current 5-volt Only • Typical Endurance > 10,000 Cycles • Single 5V ±10% Supply • CMOS and TTL Compatible Inputs and Outputs CMOS Flash • Commercial and Industrial Temperature Ranges Memory Description The AT29C1024 is a 5-volt-only in-system Flash programmable and erasable read only memory (PERO