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參數(shù)資料
| 型號： | AT45DB041B-CU |
| 廠商： | ATMEL CORP |
| 元件分類： | 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, PBGA14 |
| 封裝： | 4.50 X 7 MM, 1.40 MM HEIGHT, 1 MM PITCH, GREEN, PLASTIC, CBGA-14 |
| 文件頁數(shù)： | 1/35頁 |
| 文件大?。?/td> | 321K |
| 代理商： | AT45DB041B-CU |
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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
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| AT45DB041B-SC-2.5 | 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AT45DB041B-RC | 功能描述:閃存 4M bit RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結構:256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| AT45DB041B-RC-2.5 | 功能描述:IC FLASH 4MBIT 20MHZ 28SOIC RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標準包裝:378 系列:- 格式 - 存儲器:閃存 存儲器類型:FLASH 存儲容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-CBGA 供應商設備封裝:48-CBGA（7x7） 包裝:托盤 |
| AT45DB041B-RI | 功能描述:閃存 4M bit RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結構:256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| AT45DB041B-RI-2.5 | 功能描述:IC FLASH 4MBIT 20MHZ 28SOIC RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標準包裝:378 系列:- 格式 - 存儲器:閃存 存儲器類型:FLASH 存儲容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-CBGA 供應商設備封裝:48-CBGA（7x7） 包裝:托盤 |
| AT45DB041B-RU | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:4-megabit 2.5-volt or 2.7-volt DataFlash |
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