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參數(shù)資料
| 型號： | AT24CS256 |
| 廠商： | Atmel Corp. |
| 英文描述： | 2-Wire Serial EEPROMs with Permanent Software Write Protect |
| 中文描述： | 2，與常駐軟件寫保護線串行EEPROM |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 207K |
| 代理商： | AT24CS256 |
AT24CS128/256
8
RANDOM READ:
A random read requires a “dummy” byte
write sequence to load in the data word address. Once the
device address word and data word address are clocked in
and acknowledged by the EEPROM, the microcontroller
must generate another start condition. The microcontroller
now initiates a current address read by sending a device
address with the read/write select bit high. The EEPROM
acknowledges the device address and serially clocks out
the data word. The microcontroller does not respond with a
zero but does generate a following stop condition (refer to
Figure 5).
SEQUENTIAL READ:
Sequential reads are initiated by
either a current address read or a random address read.
After the microcontroller receives a data word, it responds
with an acknowledge. As long as the EEPROM receives an
acknowledge, it will continue to increment the data word
address and serially clock out sequential data words. When
the memory address limit is reached, the data word
address will “roll over” and the sequential read will con-
tinue. The sequential read operation is terminated when
the microcontroller does not respond with a zero but does
generate a following stop condition (refer to Figure 6).
Figure 1.
Device Address
Figure 2.
Byte Write
Figure 3.
Page Write
(* = DON’T CARE bit)
( = DON’T CARE bit for the 128K)
相關PDF資料 |
PDF描述 |
|---|---|
| AT24CS256-10PC | 2-Wire Serial EEPROMs with Permanent Software Write Protect |
| AT24CS256-10PC-1.8 | 2-Wire Serial EEPROMs with Permanent Software Write Protect |
| AT24CS256-10PC-2.7 | Hex Buffers And Line Drivers With 3-State Outputs 16-SOIC -40 to 85 |
| AT24CS256-10PI | 2-Wire Serial EEPROMs with Permanent Software Write Protect |
| AT24CS256-10PI-2.7 | Hex Buffers And Line Drivers With 3-State Outputs 16-SO -40 to 85 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AT24CS32-MAHM-E | 功能描述:IC EEPROM 32KBIT 400KHZ 8UDFN 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):在售 存儲器類型:非易失 存儲器格式:EEPROM 技術:EEPROM 存儲容量:32Kb （4K x 8） 時鐘頻率:1MHz 寫周期時間 - 字，頁:5ms 訪問時間:550ns 存儲器接口:I2C 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:8-UFDFN 裸露焊盤 供應商器件封裝:8-UDFN（2x3） 標準包裝:1 |
| AT24CS32-MAHM-T | |
| AT24CS32-SSHM-B | 功能描述:IC EEPROM 32KBIT 1MHZ 8SOIC 制造商:atmel 系列:- 包裝:管件 零件狀態(tài):有效 格式 - 存儲器:EEPROMs - 串行 存儲器類型:EEPROM 存儲容量:32K（4K x 8） 速度:400kHz，1MHz 接口:I2C，2 線串口 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商器件封裝:8-SOIC 標準包裝:100 |
| AT24CS32-SSHM-T | 制造商:Atmel Corporation 功能描述:Atmel AT24CS32-SSHM-T EEPROM |
| AT24CS32-STUM-T | 功能描述:IC EEPROM 32KBIT 1MHZ 5SOT23 制造商:atmel 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 格式 - 存儲器:EEPROMs - 串行 存儲器類型:EEPROM 存儲容量:32K（4K x 8） 速度:400kHz，1MHz 接口:I2C，2 線串口 電壓 - 電源:1.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:SOT-23-5 細型，TSOT-23-5 供應商器件封裝:SOT-23-5 標準包裝:1 |
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