Datasheet > AT45DB041B-TL

AT45DB041B-TL

更新时间： 2024-11-25 03:51:47

品牌	Logo	应用领域
爱特美尔 - ATMEL		光电二极管
页数	文件大小	规格书
35页	584K
描述
Flash, 4MX1, PDSO28, 8 X 13.40 MM, PLASTIC, MO-183, TSOP1-28

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中文翻译

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数据手册

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AT45DB041B-TL 数据手册

Features

• Single 2.5V - 3.6V or 2.7V - 3.6V Supply

• Serial Peripheral Interface (SPI) Compatible

• 20 MHz Max Clock Frequency

• Page Program Operation

– Single Cycle Reprogram (Erase and Program)

– 2048 Pages (264 Bytes/Page) Main Memory

• Supports Page and Block Erase Operations

• Two 264-byte SRAM Data Buffers – Allows Receiving of Data

while Reprogramming the Flash Memory Array

• Continuous Read Capability through Entire Array

– Ideal for Code Shadowing Applications

• Low Power Dissipation

4-megabit

2.5-volt or

2.7-volt

– 4 mA Active Read Current Typical

DataFlash^®

– 2 µA CMOS Standby Current Typical

• Hardware Data Protection Feature

• 5.0V-tolerant Inputs: SI, SCK, CS, RESET, and WP Pins

• Commercial and Industrial Temperature Ranges

• Green (Pb/Halide-free/RoHS Compliant) Package Options

AT45DB041B

1. Description

The AT45DB041B is an SPI compatible serial interface Flash memory ideally suited

for a wide variety of digital voice-, image-, program code- and data-storage applica-

tions. Its 4,325,376 bits of memory are organized as 2048 pages of 264 bytes each. In

addition to the main memory, the AT45DB041B also contains two SRAM data buffers

of 264 bytes each.

For New

Designs Use

AT45DB041D

The buffers allow receiving of data while a page in the main memory is being repro-

grammed, as well as reading or writing a continuous data stream. EEPROM emulation

(bit or byte alterability) is 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 DataFlash uses a SPI serial inter-

face to sequentially access its data. DataFlash supports SPI mode 0 and mode 3. The

simple serial interface facilitates hardware layout, increases system reliability, mini-

mizes 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. The device operates at clock

frequencies up to 20 MHz with a typical active read current consumption of 4 mA.

To allow for simple in-system reprogrammability, the AT45DB041B does not require

high input voltages for programming. The device operates from a single power supply,

2.5V to 3.6V or 2.7V to 3.6V, for both the program and read operations. The

AT45DB041B 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.

3443D–DFLSH–2/08

12 3 4 5 6 7...35

中文翻译

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与AT45DB041B-TL相关器件

型号	品牌	获取价格	描述	数据表
AT45DB041B-TL-2.5	ATMEL	获取价格	Flash, 4MX1, PDSO28, 8 X 13.40 MM, PLASTIC, MO-183, TSOP1-28
AT45DB041B-TU	ATMEL	获取价格	4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041-CC	ATMEL	获取价格	4-Megabit 2.7-volt Only Serial DataFlash
AT45DB041-CI	ATMEL	获取价格	4-Megabit 2.7-volt Only Serial DataFlash
AT45DB041D	ATMEL	获取价格	4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D_07	ATMEL	获取价格	4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D_08	ATMEL	获取价格	4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D-MU	ATMEL	获取价格	4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D-MU-2.5	ATMEL	获取价格	4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D-MU-SL954	ATMEL	获取价格	4-megabit 2.5-volt or 2.7-volt DataFlash

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