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AT49BV642D Dataheets PDF



Part Number AT49BV642D
Manufacturers ATMEL Corporation
Logo ATMEL Corporation
Description 64-megabit (4M x 16) 3-volt Only Flash Memory
Datasheet AT49BV642D DatasheetAT49BV642D Datasheet (PDF)

Features • • • • www.DataSheet4U.com Single Voltage Operation Read/Write: 2.65V - 3.6V 2.7V - 3.6V Read/Write Access Time – 70 ns Sector Erase Architecture – One Hundred Twenty-seven 32K Word Main Sectors with Individual Write Lockout – Eight 4K Word Sectors with Individual Write Lockout Fast Word Program Time – 10 µs Typical Sector Erase Time: 32K Word Sectors – 500 ms; 4K Word Sectors – 100 ms Suspend/Resume Feature for Erase and Program – Supports Reading and Programming Data from Any Sector .

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Features • • • • www.DataSheet4U.com Single Voltage Operation Read/Write: 2.65V - 3.6V 2.7V - 3.6V Read/Write Access Time – 70 ns Sector Erase Architecture – One Hundred Twenty-seven 32K Word Main Sectors with Individual Write Lockout – Eight 4K Word Sectors with Individual Write Lockout Fast Word Program Time – 10 µs Typical Sector Erase Time: 32K Word Sectors – 500 ms; 4K Word Sectors – 100 ms Suspend/Resume Feature for Erase and Program – Supports Reading and Programming Data from Any Sector by Suspending Erase of a Different Sector – Supports Reading Any Word by Suspending Programming of Any Other Word Low-power Operation – 10 mA Active – 15 µA Standby Data Polling and Toggle Bit for End of Program Detection VPP Pin for Write Protection and Accelerated Program Operations RESET Input for Device Initialization Sector Lockdown Support TSOP Package Top or Bottom Boot Block Configuration Available 128-bit Protection Register Common Flash Interface (CFI) Green (Pb/Halide-free) Packaging • • • • • • • • • • • • • 64-megabit (4M x 16) 3-volt Only Flash Memory AT49BV642D AT49BV642DT 1. Description The AT49BV642D(T) is a 2.7-volt 64-megabit Flash memory organized as 4,194,304 words of 16 bits each. The memory is divided into 135 sectors for erase operations. The device can be read or reprogrammed off a single 2.7V power supply, making it ideally suited for in-system programming. To increase the flexibility of the device, it contains an Erase Suspend and Program Suspend feature. This feature will put the erase or program on hold for any amount of time and let the user read data from or program data to any of the remaining sectors. The end of program or erase is detected by Data Polling or toggle bit. The VPP pin provides data protection and faster programming times. When the VPP input is below 0.4V, the program and erase functions are inhibited. When VPP is at 1.65V or above, normal program and erase operations can be performed. With VPP at 10.0V, the program (dual-word program command) operation is accelerated. A six-word command (Enter Single Pulse Program Mode) to remove the requirement of entering the three-word program sequence is offered to further improve programming time. After entering the six-word code, only single pulses on the write control lines are required for writing into the device. This mode (Single Pulse Word Program) is exited by powering down the device, by taking the RESET pin to GND or by a highto-low transition on the V PP input. Erase, Erase Suspend/Resume, Program Suspend/Resume and Read Reset commands will not work while in this mode; if entered they will result in data being programmed into the device. It is not recommended that the six-word code reside in the software of the final product but only exist in external programming code. 3631A–FLASH–04/06 2. Pin Configurations www.DataSheet4U.com Pin Name I/O0 - I/O15 A0 - A21 CE OE WE RESET VPP VCCQ Pin Function Data Inputs/Outputs Addresses Chip Enable Output Enable Wr.


AT49BV640ST AT49BV642D AT49BV642DT


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