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參數(shù)資料
| 型號： | AT45CS1282 |
| 廠商： | Atmel Corp. |
| 英文描述： | 128-megabit 2.7-volt Dual-interface Code Shadow DataFlash |
| 中文描述： | 128兆2.7伏的雙界面代碼陰影的DataFlash |
| 文件頁數(shù)： | 2/33頁 |
| 文件大?。?/td> | 252K |
| 代理商： | AT45CS1282 |
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AT45CS1282 [Preliminary]
3447A–DFLSH–2/04
store two bits of information delivering a very cost effective high density Flash mem-
ory. The AT45CS1282 supports RapidS serial interface and Rapid8 8-bit interface.
RapidS serial interface is SPI compatible for frequencies up to 33 MHz. The dual-inter-
face allows a dedicated serial interface to be connected to a DSP and a dedicated 8-bit
interface to be connected to a microcontroller or vice versa. However, the use of either
interface is purely optional. Its 138,412,032 bits of memory are organized as 16,384
pages of 1,056 bytes each. In addition to the 132-megabit main memory, the
AT45CS1282 also contains two SRAM buffers of 1,056 bytes each. The buffers allow
the receiving of data while a page in the main Memory is being reprogrammed, as well
as writing a continuous data stream. Unlike conventional Flash memories that are
accessed randomly with multiple address lines and a parallel interface, the DataFlash
uses either a RapidS serial interface or a 8-bit Rapid8 interface to sequentially access
its data. The simple sequential access dramatically reduces active pin count, facilitates
hardware layout, increases system reliability, minimizes switching noise, and reduces
package size. The device is optimized for use in many commercial applications where
high-density, low-pin count, low-voltage and low-power are essential. The device oper-
ates at clock frequencies up to 50 MHz with a typical active read current consumption of
10 mA.
To allow for simple in-system reprogrammability, the AT45CS1282 does not require
high input voltages for programming. The device operates from a single power supply,
2.7V to 3.6V, for both the program and read operations. The AT45CS1282 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), or an 8-bit interface
consisting of the input/output pins (I/O7 - I/O0) and the clock pin (CLK).
All programming and erase cycles are self-timed.
Block Diagram
Memory Array
To provide optimal flexibility, the memory array of the AT45CS1282 is divided into two
levels of granularity comprising of sectors, and pages. The “Memory Architecture Dia-
gram” illustrates the breakdown of each level and details the number of pages per
sector. All program operations to the DataFlash occur on a page by page basis. The
erase operations is performed at the sector level.
FLASH MEMORY ARRAY
PAGE (1056 BYTES)
BUFFER 2 (1056 BYTES)
BUFFER 1 (1056 BYTES)
I/O INTERFACE
SCK/CLK
CS
RESET
VCC
GND
RDY/BUSY
SER/BYTE
WP
SO
SI
I/O7 - I/O0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT45D011 | 1-Megabit 5.0-volt Only Serial DataFlash |
| AT45D011-JC | 1-Megabit 5.0-volt Only Serial DataFlash |
| AT45D011-JI | 1-Megabit 5.0-volt Only Serial DataFlash |
| AT45D011-SC | 1-Megabit 5.0-volt Only Serial DataFlash |
| AT45D011-SI | 1-Megabit 5.0-volt Only Serial DataFlash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT45CS1282-TC | 功能描述:閃存 128M 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(jié)構(gòu):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(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| AT45CS1282-TI | 功能描述:IC FLASH 128MBIT 50MHZ 40TSOP RoHS:否 類別:集成電路 (IC) >> 存儲器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 格式 - 存儲器:閃存 存儲器類型:FLASH 存儲容量:16M（2M x 8，1M x 16） 速度:70ns 接口:并聯(lián) 電源電壓:2.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-TFSOP（0.724"，18.40mm 寬） 供應(yīng)商設(shè)備封裝:48-TSOP 包裝:托盤 |
| AT45D011 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1-Megabit 5.0-volt Only Serial DataFlash |
| AT45D011-JC | 功能描述:閃存 1M 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(jié)構(gòu):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(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| AT45D011-JI | 功能描述:閃存 1M 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(jié)構(gòu):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(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
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