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参数资料
| 型号： | AT45DB041B-CNU |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 4-megabit 2.5-volt or 2.7-volt DataFlash |
| 中文描述： | 4M X 1 FLASH 2.7V PROM, DSO8 |
| 封装： | 6 X 8 MM, 1 MM HEIGHT, 1.27 MM PITCH, GREEN, CASON-8 |
| 文件页数： | 1/35页 |
| 文件大小： | 321K |
| 代理商： | AT45DB041B-CNU |
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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 mA Active Read Current Typical
– 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
1.
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.
Description
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.
4-megabit
2.5-volt or
2.7-volt
DataFlash
AT45DB041B
3443C–DFLSH–5/05
相关PDF资料 |
PDF描述 |
|---|---|
| AT45DB041B-CU | 4-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB041B-RU | 4-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB041B-SU | 4-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB041B-TU | 4-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB041B-SC | 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT45DB041B-CU | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB041B-RC | 功能描述:闪存 4M bit RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| AT45DB041B-RC-2.5 | 功能描述:IC FLASH 4MBIT 20MHZ 28SOIC RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA（7x7） 包装:托盘 |
| AT45DB041B-RI | 功能描述:闪存 4M bit RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| AT45DB041B-RI-2.5 | 功能描述:IC FLASH 4MBIT 20MHZ 28SOIC RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:378 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并联 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-CBGA 供应商设备封装:48-CBGA（7x7） 包装:托盘 |
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