AT49BV802A集成电路（IC）的存储器规格书PDF中文资料

描述 Description

The AT49BV802A(T) is a 2.7-volt 8-megabit Flash memory organized as 524,288 words of 16 bits each or 1,048,576 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 23 sectors for erase operations. The AT49BV802A(T) is offered in a 48-lead TSOP and a 48-ball CBGA package. The device has CE and OE control signals to avoid any bus contention. This device can be read or reprogrammed using a single power supply, making it ideally suited for in-system programming.

特性 Features

• Single Voltage Read/Write Operation: 2.65V to 3.6V

• Access Time – 70 ns

• Sector Erase Architecture

– Fifteen 32K Word (64K Bytes) Sectors with Individual Write Lockout

– Eight 4K Word (8K Bytes) Sectors with Individual Write Lockout

• Fast Byte/Word Program Time – 12 µs

• Fast Sector Erase Time – 300 ms

• Suspend/Resume Feature for Erase and Program

– Supports Reading and Programming from Any Sector by Suspending Erase of a Different Sector

– Supports Reading Any Byte/Word in the Non-suspending Sectors by Suspending Programming of Any Other Byte/Word

• Low-power Operation

– 12 mA Active

– 13 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

• Minimum 100,000 Erase Cycles

• Common Flash Interface (CFI)