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AT49LV2048A

Features: • Single-voltage Read/Write Operation: 2.7V to 3.6V (BV), 3.0V to 3.6V (LV)• Fast Read Access Time 70 ns• Internal Erase/Program Control• Sector Architecture One 8K Word (16K Bytes) Boot Block with Programming Lockout Two 4K Word (8K Bytes) Parameter Blocks On...

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SeekIC No. : 004290431 Detail

AT49LV2048A: Features: • Single-voltage Read/Write Operation: 2.7V to 3.6V (BV), 3.0V to 3.6V (LV)• Fast Read Access Time 70 ns• Internal Erase/Program Control• Sector Architecture One ...

AT49LV2048A Data Sheet

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Part Number:
AT49LV2048A
Supply Ability:
5000

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  • 1~5000
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  • 15 Days
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Product Details

Description



Features:

• Single-voltage Read/Write Operation: 2.7V to 3.6V (BV), 3.0V to 3.6V (LV)
• Fast Read Access Time 70 ns
• Internal Erase/Program Control
• Sector Architecture
   One 8K Word (16K Bytes) Boot Block with Programming Lockout
   Two 4K Word (8K Bytes) Parameter Blocks
   One 112K Word (224K Bytes) Main Memory Array Block
• Fast Sector Erase Time 10 Seconds
• Byte-by-byte or Word-by-word Programming 30 µs Typical
• Hardware Data Protection
• Data Polling for End of Program Detection
• Low Power Dissipation
   25mAActiveCurrent
   50 µA CMOS Standby Current
• Typical 10,000 Write Cycles


Pinout

Connection Diagram


Specifications

Temperature under Bias ................................ -55°Cto+125°C
Storage Temperature ..................................... -65°Cto+150°C
All Input Voltages
(including NC Pins)
with Respect to Ground ..................................-0.6V to +6.25V
All Output Voltages
with Respect to Ground .............................-0.6V to VCC +0.6V
Voltage on RESET
with Respect to Ground ..................................-0.6V to +13.5V


Description

The AT49BV/AT49LV2048A is a 3-volt, 2-megabit Flash memory organized as 262,144 words of 8 bits each or 128K words of 16 bits each. Manufactured with Atmel's advanced nonvolatile CMOS technology, the device offers access times to 70 ns with power dissipation of just 67 mW at 2.7V read. When deselected, the CMOS standby current is less than 50 µA.

The device AT49LV2048A contains a user-enabled "boot block" protection feature. The AT49BV/LV2048A locates the boot block at lowest order addresses ("bottom boot").

To allow for simple in-system reprogrammability, the AT49BV/AT49LV2048A does not require high input voltages for programming. Reading data out of the device is similar to reading from an EPROM; it has standard CE,OE and WE inputs to avoid bus contention. Reprogramming the AT49BV/LV2048A is performed by first erasing a block of data and then programming on a byte-by-byte or word-by-word basis.




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