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AT25DN011 PDF даташит

Спецификация AT25DN011 изготовлена ​​​​«Adesto» и имеет функцию, называемую «2.3V Minimum SPI Serial Flash Memory».

Детали детали

Номер произв AT25DN011
Описание 2.3V Minimum SPI Serial Flash Memory
Производители Adesto
логотип Adesto логотип 

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AT25DN011 Даташит, Описание, Даташиты
AT25DN011
1-Mbit, 2.3V Minimum
SPI Serial Flash Memory with Dual-Read Support
Features
PRELIMINARY DATASHEET
Single 2.3V - 3.6V Supply
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 and 3
Supports Dual Output Read
104MHz Maximum Operating Frequency
Clock-to-Output (tV) of 6ns
Flexible, Optimized Erase Architecture for Code + Data Storage Applications
Uniform 256-Byte Page erase
Uniform 4-Kbyte Block Erase
Uniform 32-Kbyte Block Erase
Full Chip Erase
Hardware Controlled Locking of Protected Sectors via WP Pin
128-Byte Programmable OTP Security Register
Flexible Programming
Byte/Page Program (1 to 256 Bytes)
Fast Program and Erase Times
1.5ms Typical Page Program (256 Bytes) Time
40ms Typical 4-Kbyte Block Erase Time
320ms Typical 32-Kbyte Block Erase Time
Automatic Checking and Reporting of Erase/Program Failures
Software Controlled Reset
JEDEC Standard Manufacturer and Device ID Read Methodology
Low Power Dissipation
350nA Ultra Deep Power Down current (Typical)
5µA Deep Power-Down Current (Typical)
25uA Standby current (Typical)
6mA Active Read Current (Typical)
Endurance: 100,000 Program/Erase Cycles
Data Retention: 20 Years
Complies with Full Industrial Temperature Range
Industry Standard Green (Pb/Halide-free/RoHS Compliant) Package Options
8-lead SOIC (150-mil)
8-pad Ultra Thin DFN (2 x 3 x 0.6mm)
8-lead TSSOP Package
DS-25DN011–038B–5/2014









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AT25DN011 Даташит, Описание, Даташиты
1. Description
The Adesto® AT25DN011 is a serial interface Flash memory device designed for use in a wide variety of high-volume consumer
based applications in which program code is shadowed from Flash memory into embedded or external RAM for execution. The
flexible erase architecture of the AT25DN011, with its page erase granularity it is ideal for data storage as well, eliminating the
need for additional data storage devices.
The erase block sizes of the AT25DN011 have been optimized to meet the needs of today's code and data storage applications.
By optimizing the size of the erase blocks, the memory space can be used much more efficiently. Because certain code modules
and data storage segments must reside by themselves in their own erase regions, the wasted and unused memory space that
occurs with large sectored and large block erase Flash memory devices can be greatly reduced. This increased memory space
efficiency allows additional code routines and data storage segments to be added while still maintaining the same overall device
density.
The device also contains a specialized OTP (One-Time Programmable) Security Register that can be used for purposes such as
unique device serialization, system-level Electronic Serial Number (ESN) storage, locked key storage, etc.
Specifically designed for use in many different systems, the AT25DN011 supports read, program, and erase operations with a
wide supply voltage range of 2.3V to 3.6V. No separate voltage is required for programming and erasing.
2. Pin Descriptions and Pinouts
Table 2-1. Pin Descriptions
Symbol
CS
SCK
Name and Function
CHIP SELECT: Asserting the CS pin selects the device. When the CS pin is deasserted, the
device will be deselected and normally be placed in standby mode (not Deep Power-Down
mode), and the SO pin will be in a high-impedance state. When the device is deselected,
data will not be accepted on the SI pin.
A high-to-low transition on the CS pin is required to start an operation, and a low-to-high
transition is required to end an operation. When ending an internally self-timed operation
such as a program or erase cycle, the device will not enter the standby mode until the
completion of the operation.
SERIAL CLOCK: This pin is used to provide a clock to the device and is used to control the
flow of data to and from the device. Command, address, and input data present on the SI pin
is always latched in on the rising edge of SCK, while output data on the SO pin is always
clocked out on the falling edge of SCK.
SERIAL INPUT: The SI pin is used to shift data into the device. The SI pin is used for all data
input including command and address sequences. Data on the SI pin is always latched in on
the rising edge of SCK.
Asserted
State
Low
-
Type
Input
Input
SI (I/O0)
With the Dual-Output Read commands, the SI Pin becomes an output pin (I/O0) in
conjunction with other pins to allow two bits of data on (I/O1-0) to be clocked out on every
falling edge of SCK
To maintain consistency with the SPI nomenclature, the SI (I/O0) pin will be referenced as
the SI pin unless specifically addressing the Dual-I/O modes in which case it will be
referenced as I/O0
Data present on the SI pin will be ignored whenever the device is deselected (CS is
deasserted).
- Input/Output
AT25DN011
DS-25DN011–038B–5/2014
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AT25DN011 Даташит, Описание, Даташиты
Table 2-1. Pin Descriptions (Continued)
Symbol Name and Function
Asserted
State
SERIAL OUTPUT: The SO pin is used to shift data out from the device. Data on the SO pin
is always clocked out on the falling edge of SCK.
Type
SO (I/O1)
With the Dual-Output Read commands, the SO Pin remains an output pin (I/O1) in
conjunction with other pins to allow two bits of data on (I/O1-0) to be clocked out on every
falling edge of SCK
To maintain consistency with the SPI nomenclature, the SO (I/O1) pin will be referenced as
the SO pin unless specifically addressing the Dual-I/O modes in which case it will be
referenced as I/O1
WP
HOLD
VCC
GND
The SO pin will be in a high-impedance state whenever the device is deselected (CS is
deasserted).
WRITE PROTECT: The WP pin controls the hardware locking feature of the device. Please
refer to “Protection Commands and Features” on page 14 for more details on protection
features and the WP pin.
The WP pin is internally pulled-high and may be left floating if hardware controlled protection
will not be used. However, it is recommended that the WP pin also be externally connected
to VCC whenever possible.
HOLD: The HOLD pin is used to temporarily pause serial communication without
deselecting or resetting the device. While the HOLD pin is asserted, transitions on the SCK
pin and data on the SI pin will be ignored, and the SO pin will be in a high-impedance state.
The CS pin must be asserted, and the SCK pin must be in the low state in order for a
Hold condition to start. A Hold condition pauses serial communication only and does
not have an effect on internally self-timed operations such as a program or erase cycle.
Please refer to “Hold” on page 28 for additional details on the Hold operation.
The HOLD pin is internally pulled-high and may be left floating if the Hold function will not be
used. However, it is recommended that the HOLD pin also be externally connected to VCC
whenever possible.
DEVICE POWER SUPPLY: The VCC pin is used to supply the source voltage to the device.
Operations at invalid VCC voltages may produce spurious results and should not be
attempted.
GROUND: The ground reference for the power supply. GND should be connected to the
system ground.
- Input/Output
Low Input
Low Input
- Power
- Power
AT25DN011
DS-25DN011–038B–5/2014
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