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| 型号： | AT25080A-10TI-2.7 |
| 厂商： | ATMEL CORP |
| 元件分类： | PROM |
| 英文描述： | SPI Serial EEPROMs |
| 中文描述： | 1K X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封装： | 4.40 MM, PLASTIC, MO-153AA, TSSOP-8 |
| 文件页数： | 2/23页 |
| 文件大小： | 451K |
| 代理商： | AT25080A-10TI-2.7 |
10
AT25080A/160A/320A/640A
3347I–SEEPR–1/05
READ SEQUENCE (READ): Reading the AT25080A/160A/320A/640A via the Serial Output
(SO) pin requires the following sequence. After the CS line is pulled low to select a device, the
read op-code is transmitted via the SI line followed by the byte address to be read (A15–A0,
the specified address is then shifted out onto the SO line. If only one byte is to be read, the CS
line should be driven high after the data comes out. The read sequence can be continued
since the byte address is automatically incremented and data will continue to be shifted out.
When the highest address is reached, the address counter will roll over to the lowest address
allowing the entire memory to be read in one continuous read cycle.
WRITE SEQUENCE (WRITE): In order to program the AT25080A/160A/320A/640A, two sep-
arate instructions must be executed. First, the device
must be write enabled via the WREN
instruction. Then a write (WRITE) instruction may be executed. Also, the address of the mem-
ory location(s) to be programmed must be outside the protected address field location
selected by the block write protection level. During an internal write cycle, all commands will
be ignored except the RDSR instruction.
A write instruction requires the following sequence. After the CS line is pulled low to select the
device, the WRITE op-code is transmitted via the SI line followed by the byte address (A15–
CS pin is brought high. The low-to-high transition of the CS pin must occur during the SCK
low-time immediately after clocking in the D0 (LSB) data bit.
The READY/BUSY status of the device can be determined by initiating a read status register
(RDSR) instruction. If Bit 0 = “1”, the write cycle is still in progress. If Bit 0 = “0”, the write cycle
has ended. Only the RDSR instruction is enabled during the write programming cycle.
The AT25080A/160A/320A/640A is capable of a 32-byte page write operation. After each byte
of data is received, the five low-order address bits are internally incremented by one; the high-
order bits of the address will remain constant. If more than 32 bytes of data are transmitted,
the address counter will roll over and the previously written data will be overwritten. The
AT25080A/160A/320A/640A is automatically returned to the write disable state at the comple-
tion of a write cycle.
NOTE: If the device is not write-enabled (WREN), the device will ignore the write instruction
and will return to the standby state, when CS is brought high. A new CS falling edge is
required to reinitiate the serial communication.
Table 10. Address Key
Address
AT25080A
AT25160A
AT25320A
AT25640A
AN
A 9–A 0
A 10–A 0
A 11–A 0
A 12–A 0
Don’t Care Bits
A 15–A 10
A 15–A 11
A 15–A 12
A 15–A 13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT25080A-10TQ-2.7 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25080A-10TU-1.8 | 功能描述:电可擦除可编程只读存储器 1.8V 27 MIL - 10MS 1.8V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| AT25080A-10TU-1.8 SL383 | 功能描述:电可擦除可编程只读存储器 8K SPI Serial 电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| AT25080A-10TU-1.8-T | 功能描述:IC EEPROM 8KBIT 20MHZ 8TSSOP 制造商:microchip technology 系列:- 包装:带卷（TR） 零件状态:停產 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:8Kb （1K x 8） 时钟频率:20MHz 写周期时间 - 字，页:5ms 存储器接口:SPI 电压 - 电源:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商器件封装:8-TSSOP 基本零件编号:AT25080 标准包装:5,000 |
| AT25080A-10TU-2.7 | 功能描述:电可擦除可编程只读存储器 1.8V 27 MIL - 10MS 2.7V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
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