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參數(shù)資料
| 型號： | AT25080A-10TU-2.7 |
| 廠商： | ATMEL CORP |
| 元件分類： | PROM |
| 英文描述： | SPI Serial EEPROMs |
| 中文描述： | 1K X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封裝： | 4.40 MM, GREEN, PLASTIC, MO-153AA, TSSOP-8 |
| 文件頁數(shù)： | 2/26頁 |
| 文件大?。?/td> | 801K |
| 代理商： | AT25080A-10TU-2.7 |
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10
3347L–SEEPR–06/07
AT25080A/160A/320A/640A
WRITE STATUS REGISTER (WRSR): The WRSR instruction allows the user to select one of
four levels of protection. The AT25080A/160A/320A/640A is divided into four array segments.
One-quarter, one-half, or all of the memory segments can be protected. Any of the data within
any selected segment will therefore be read only. The block write protection levels and corre-
sponding status register control bits are shown in Table 3-4.
The three bits BP0, BP1, and WPEN are nonvolatile cells that have the same properties and
functions as the regular memory cells (e.g., WREN, tWC, RDSR).
The WRSR instruction also allows the user to enable or disable the write protect (WP) pin
through the use of the Write Protect Enable (WPEN) bit. Hardware write protection is enabled
when the WP pin is low and the WPEN bit is “1”. Hardware write protection is disabled when
either the WP pin is high or the WPEN bit is “0”. When the device is hardware write protected,
writes to the status register, including the block protect bits and the WPEN bit, and the block-pro-
tected sections in the memory array are disabled. Writes are only allowed to sections of the
memory that are not block-protected.
NOTE: When the WPEN bit is hardware write protected, it cannot be changed back to “0” as
long as the WP pin is held low.
Table 3-3.
Read Status Register Bit Definition
Bit
Definition
Bit 0 (RDY)
Bit 0 = “0” (RDY) indicates the device is READY. Bit 0 = “1” indicates the write
cycle is in progress.
Bit 1 (WEN)
Bit 1= “0” indicates the device is not WRITE ENABLED. Bit 1 = “1” indicates the
device is write enabled.
Bit 2 (BP0)
See
Bit 3 (BP1)
See
Bits 4–6 are “0”s when device is not in an internal write cycle.
Bit 7 (WPEN)
See
Bits 0–7 are “1”s during an internal write cycle.
Table 3-4.
Block Write Protect Bits
Level
Status
Register Bits
Array Addresses Protected
BP1
BP0
AT25080A
AT25160A
AT25320A
AT25640A
0
None
1(1/4)
0
1
0300
03FF
0600
07FF
0C00
0FFF
1800
1FFF
2(1/2)
1
0
0200
03FF
0400
07FF
0800
0FFF
1000
1FFF
3(All)
1
0000
03FF
0000
07FF
0000
0FFF
0000
1FFF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT25080AN-10SE-2.7 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25080AN-10SI-1.8 | 功能描述:IC EEPROM 8KBIT 20MHZ 8SOIC 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 |
| AT25080AN-10SI-1.8 SL383 | 功能描述:IC EEPROM 8KBIT 20MHZ 8SOIC 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 |
| AT25080AN-10SI-1.8-T | 功能描述:IC EEPROM 8KBIT 20MHZ 8SOIC 制造商:microchip technology 系列:- 包裝:帶卷（TR） 零件狀態(tài):停產(chǎn) 存儲器類型:非易失 存儲器格式:EEPROM 技術(shù):EEPROM 存儲容量:8Kb （1K x 8） 時鐘頻率:20MHz 寫周期時間 - 字，頁:5ms 存儲器接口:SPI 電壓 - 電源:1.8 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-SOIC（0.154"，3.90mm 寬） 供應(yīng)商器件封裝:8-SOIC 基本零件編號:AT25080 標(biāo)準(zhǔn)包裝:3,000 |
| AT25080AN-10SI-2.7 | 功能描述:IC EEPROM 8KBIT 20MHZ 8SOIC 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 |
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