AT49LV1024A Datasheet (data sheet) PDF





AT49LV1024A Datasheet, (AT49LV1024A / AT49BV1024A) 1-megabit (64K x 16) 3-volt Only Flash Memory

AT49LV1024A   AT49LV1024A  

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www.DataSheet4U.com Features • • • • • • • • • Single-vo ltage Operation Read/Write Operation: 2 .7V to 3.6V (BV). 3.0V to 3.6V(LV) Fast Read Access Time – 45 ns Internal Pr ogram Control and Timer 8K Word Boot Bl ock with Lockout Fast Erase Cycle Time – 1.5 Seconds Word-by-word Programmin g – 20 µs/Word Typical Hardware Data Protection Data Polling for End of Pro gram Detection Small 10 x 14 mm VSOP Pa ckage Typical 10,000 Write Cycles Desc ription The AT49BV/LV1024A is a 3-volt only in-system Flash memory. The 1-mega bit of memory is organized as 65,536 wo rds by 16 bits. Manufactured with Atmel ’s advanced nonvolatile CMOS technology, the devices

AT49LV1024A Datasheet, (AT49LV1024A / AT49BV1024A) 1-megabit (64K x 16) 3-volt Only Flash Memory

AT49LV1024A   AT49LV1024A  
offer access times to 45 ns with power dissipation of just 72 mW over the indu strial temperature range. To allow for simple in-system reprogrammability, the AT49BV/LV1024A does not require high i nput voltages for programming. Three-vo lt-only commands determine the read and programming operation of the device. R eading data out of the device is simila r to reading from an EPROM. Reprogrammi ng the AT49BV/LV1024A is performed by e rasing a block of data (entire chip or main memory block) and then programming on a word by word basis. The typical w ord programming time is a fast 20 µs. The end of a program cycle can be optio nally detected by the Data Polling feat ure. Once the end of a word program cyc le has been detected, a new access for a read or program can begin. The typica l number of program and erase cycles is in excess of 10,000 cycles. The option al 8K word boot block section includes a reprogramming write lock out feature to provide data integrity. The boot sec tor is designed to contain user secure code, and when the feature is enabled, the boot sector is permanently protecte d from being erased or reprogrammed. 1 -megabit (64K x 16) 3-volt Only Flash M emory AT49BV1024A AT49LV1024A www.DataS Heet4U.com Rev. 3332B–FLASH–12/03 Pin Configurations Pin Name A0 - A15 CE OE WE Function A








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