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參數(shù)資料
| 型號(hào)： | AT25080-10PC-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, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁(yè)數(shù)： | 18/19頁(yè) |
| 文件大?。?/td> | 279K |
| 代理商： | AT25080-10PC-2.7 |
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8
AT25080/160/320/640
0675F–08/01
Functional
Description
The AT25080/160/320/640 is designed to interface directly with the synchronous serial periph-
eral interface (SPI) of the 6805 and 68HC11 series of microcontrollers.
The AT25080/160/320/640 utilizes an 8-bit instruction register. The list of instructions and their
operation codes are contained in Table 1. All instructions, addresses, and data are transferred
with the MSB first and start with a high-to-low CS transition.
WRITE ENABLE (WREN): The device will power-up in the write disable state when VCC is
applied. All programming instructions must therefore be preceded by a Write Enable
instruction.
WRITE DISABLE (WRDI): To protect the device against inadvertent writes, the Write Disable
instruction disables all programming modes. The WRDI instruction is independent of the sta-
tus of the WP pin.
READ STATUS REGISTER (RDSR): The Read Status Register instruction provides access to
the status register. The READY/BUSY and Write Enable status of the device can be deter-
mined by the RDSR instruction. Similarly, the Block Write Protection bits indicate the extent of
protection employed. These bits are set by using the WRSR instruction.
Table 1. Instruction Set for the AT25080/160/320/640
Instruction Name
Instruction Format
Operation
WREN
0000 X110
Set Write Enable Latch
WRDI
0000 X100
Reset Write Enable Latch
RDSR
0000 X101
Read Status Register
WRSR
0000 X001
Write Status Register
READ
0000 X011
Read Data from Memory Array
WRITE
0000 X010
Write Data to Memory Array
Table 2. Status Register Format
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
WPEN
X
BP1
BP0
WEN
RDY
Table 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 Table 3.
Bit 3 (BP1)
See Table 3.
Bits 4 - 6 are 0s when device is not in an internal write cycle.
Bit 7 (WPEN)
See Table 7.
Bits 0 - 7 are 1s during an internal write cycle.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT25080-10PI | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25080-10PI-1.8 | 功能描述:IC EEPROM 8KBIT 3MHZ 8DIP RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:378 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)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(yīng)商設(shè)備封裝:48-CBGA（7x7） 包裝:托盤 |
| AT25080-10PI-2.7 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25080A | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25080A_07 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
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