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AT49BV3218 Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT49BV3218 Datasheet(HTML) 1 Page - ATMEL Corporation |
1 / 25 page 1 Features • Single Voltage Read/Write Operation: 2.65V to 3.3V (BV), 3.0V to 3.6V (LV) • Access Time–85ns • Sector Erase Architecture – Sixty-three 32K Word (64K Byte) Sectors with Individual Write Lockout – Eight 4K Word (8K Byte) Sectors with Individual Write Lockout • Fast Word Program Time – 15 µs • Fast Sector Erase Time – 200 ms • Dual-plane Organization, Permitting Concurrent Read while Program/Erase Memory Plane A: Eight 4K Word and Fifteen 32K Word Sectors Memory Plane B: Forty-eight 32K Word Sectors • Erase Suspend Capability – Supports Reading/Programming Data from Any Sector by Suspending Erase of Any Different Sector • Low-power Operation –25 mA Active – 10 µA Standby • Data Polling, Toggle Bit, Ready/Busy for End of Program Detection • RESET Input for Device Initialization • Sector Lockdown Support • TSOP and CBGA Package Options • Top or Bottom Boot Block Configuration Available • 128-bit Protection Register Description The AT49BV/LV3218(T) is a 2.65- to 3.3-volt (BV)/3.0V to 3.6V (LV) 32-megabit Flash memory organized as 2,097,152 words of 16 bits each or 4,194,304 bytes of 8 bits each. The x16 data appears on I/O0 - I/O15; the x8 data appears on I/O0 - I/O7. The memory is divided into 71 sectors for erase operations. The device is offered in 48- lead TSOP and 48-ball CBGA packages. The device has CE and OE control signals to avoid any bus contention. This device can be read or reprogrammed using a single 2.65V power supply, making it ideally suited for in-system programming. Pin Configurations Pin Name Function A0 - A20 Addresses CE Chip Enable OE Output Enable WE Write Enable RESET Reset RDY/BUSY READY/BUSY Output VPP Optional Power Supply I/O0 - I/O14 Data Inputs/Outputs I/O15 (A-1) I/O15 (Data Input/Output, Word Mode) A-1 (LSB Address Input, Byte Mode) BYTE Selects Byte or Word Mode NC No Connect 32-megabit (2Mx 16/4Mx8) 3-volt Only Flash Memory AT49BV3218 AT49BV3218T AT49LV3218 AT49LV3218T Not Recommended for New Designs. New Designs Should Use AT49BV/LV320(T)/321(T) Rev. 2452F–FLASH–10/02 |
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