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Part Number: AT45D081
Description: The AT45D081 is a 5-volt only, serial interface Flash memory suitable for in-system reprogramming. Its 8,650,752 bits o...
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AT45D081
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DataSheet
General Description
AT45D081 General Description
The AT45D081 is a 5-volt only, serial interface Flash memory suitable for in-system reprogramming. Its 8,650,752 bits of memory are organized as 4096 pages of 264- bytes each. In addition to the main memory, the AT45D081 also contains two data buffers of 264-bytes each. The buffers allow receiving of data while a page in the main memory is being reprogrammed. Unlike conventional Flash memories that are accessed randomly with multiple address lines and a parallel interface, the DataFlash uses a serial interface to sequentially access its data. The simple serial interface facilitates hardware layout, increases system reliability, minimizes switching noise, and reduces package size and active pin count. The device is optimized for use in many commercial and industrial applications where high density, low pin count, low voltage, and low power are essential. Typical applications for the DataFlash are digital voice storage, image storage, and data storage. The device operates at clock frequencies up to 10 Mhz with a typical active read current consumption of 15 mA.
To allow for simple in-system reprogrammability, the AT45D081 does not require high input voltages for program-ming. The device operates from a single power supply, 4.5V to 5.5V, for both the program and read operations. The AT45D081 is enabled through the chip select pin (CS) and accessed via a three-wire interface consisting of the Serial Input (SI), Serial Output (SO), and the Serial Clock (SCK).
All programming cycles are self-timed, and no separate erase cycle is required before programming.
AT45D081 Maximum Ratings
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Temperature Under Bias ................-55°C to +125°C |
AT45D081 Features
• Single 4.5V - 5.5V Supply
• Serial Interface Architecture
• Page Program Operation
Single Cycle Reprogram (Erase and Program)
4096 Pages (264 Bytes/Page) Main Memory
• Two 264-Byte Data Buffers Allows Receiving of Data while Reprogramming of Non-Volatile Memory
• Internal Program and Control Timer
• Fast Page Program Time 7 ms Typical
• 80 ms Typical Page to Buffer Transfer Time
• Low Power Dissipation
15 mA Active Read Current Typical
10 mA CMOS Standby Current Typical
• 10 MHz Max Clock Frequency
• Hardware Data Protection Feature
• Serial Peripheral Interface (SPI) Compatible Modes 0 and 3
• CMOS and TTL Compatible Inputs and Outputs
• Commercial and Industrial Temperature Ranges
• Serial Interface Architecture
• Page Program Operation
Single Cycle Reprogram (Erase and Program)
4096 Pages (264 Bytes/Page) Main Memory
• Two 264-Byte Data Buffers Allows Receiving of Data while Reprogramming of Non-Volatile Memory
• Internal Program and Control Timer
• Fast Page Program Time 7 ms Typical
• 80 ms Typical Page to Buffer Transfer Time
• Low Power Dissipation
15 mA Active Read Current Typical
10 mA CMOS Standby Current Typical
• 10 MHz Max Clock Frequency
• Hardware Data Protection Feature
• Serial Peripheral Interface (SPI) Compatible Modes 0 and 3
• CMOS and TTL Compatible Inputs and Outputs
• Commercial and Industrial Temperature Ranges
AT45D081 Connection Diagram
AT45D081
PDF/DataSheet Download
- Datasheet: AT45D081
- File Size: 118043 KB
- Manufacturer: ATMEL [ATMEL Corporation]
- Click here to Download
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