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AT45DB161E डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 2.3V or 2.5V Minimum SPI Serial Flash Memory - ATMEL Corporation

भाग संख्या AT45DB161E
समारोह 2.3V or 2.5V Minimum SPI Serial Flash Memory
मैन्युफैक्चरर्स ATMEL Corporation 
लोगो ATMEL Corporation लोगो 
पूर्व दर्शन
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AT45DB161E pdf
Description
The Atmel AT45DB161E is a 2.3V or 2.5V minimum, serial-interface sequential access Flash memory ideally suited for a
wide variety of digital voice, image, program code, and data storage applications. The AT45DB161E also supports
RapidS serial interface for applications requiring very high speed operation. Its 17,301,504 bits of memory are organized
as 4,096 pages of 512 bytes or 528 bytes each. In addition to the main memory, the AT45DB161E also contains two
SRAM buffers of 512/528 bytes each. The buffers allow receiving of data while a page in the main memory is being
reprogrammed. Interleaving between both buffers can dramatically increase a system's ability to write a continuous data
stream. In addition, the SRAM buffers can be used as additional system scratch pademory, and E2PROM emulation (bit
or byte alterability) can be easily handled with a self-contained three step read-modify-write operation.
Unlike conventional Flash memories that are accessed randomly with multiple address lines and a parallel interface, the
Atmel DataFlash® uses a serial interface to sequentially access its data. The simple sequential access dramatically
reduces active pin count, facilitates simplified hardware layout, increases system reliability, minimizes switching noise,
and reduces package size. 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.
To allow for simple in-system re-programmability, the AT45DB161E does not require high input voltages for
programming. The device operates from a single 2.3V to 3.6V or 2.5V to 3.6V power supply for the erase and program
and read operations. The AT45DB161E is enabled through the Chip Select pin (CS) and accessed via a 3-wire interface
consisting of the Serial Input (SI), Serial Output (SO), and the Serial Clock (SCK).
All programming and erase cycles are self-timed.
1. Pin Configurations and Pinouts
Figure 1-1. Pinouts
8-lead SOIC
Top View
SI
SCK
RESET
CS
1
2
3
4
8 SO
7 GND
6 VCC
5 WP
8-pad UDFN
Top View
SI 1
SCK 2
RESET 3
CS 4
8 SO
7 GND
6 VCC
5 WP
8-ball CBGA
Top View
SCK GND VCC
CS NC WP
SO SI RST
Note: 1. The metal pad on the bottom of the UDFN package is not internally connected to a voltage potential.
This pad can be a “no connect” or connected to GND.
Atmel AT45DB161E [PRELIMINARY DATASHEET]
8782A–DFLASH–3/12
2

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