- 您现在的位置：买卖IC网 > Datasheet目录312 > AT25128AW-10SU-2.7 (Atmel)IC EEPROM 128KBIT 20MHZ 8SOIC Datasheet资料下载
参数资料
| 型号： | AT25128AW-10SU-2.7 |
| 厂商： | Atmel |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 128KBIT 20MHZ 8SOIC |
| 标准包装： | 94 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 128K (16K x 8) |
| 速度： | 10MHz，20MHz |
| 接口： | SPI 3 线串行 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.209"，5.30mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
AT25128A_256A
3. Functional Description
The AT25128A/256A is designed to interface directly with the synchronous serial peripheral
interface (SPI) of the 6800 type series of microcontrollers.
The AT25128A/256A utilizes an 8-bit instruction register. The list of instructions and their opera-
tion codes are contained in see Table 4-3 . All instructions, addresses, and data are transferred
with the MSB first and start with a high-to-low CS transition.
Table 3-1.
Instruction Set for the AT25128A/256A
Instruction Name
WREN
WRDI
RDSR
WRSR
READ
WRITE
Instruction Format
0000 X110
0000 X100
0000 X101
0000 X001
0000 X011
0000 X010
Operation
Set Write Enable Latch
Reset Write Enable Latch
Read Status Register
Write Status Register
Read Data from Memory Array
Write Data to Memory Array
WRITE ENABLE (WREN): The device will power-up in the write disable state when V CC 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 status
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 determined 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 3-2.
Status Register Format
Bit 7
WPEN
Bit 6
X
Bit 5
X
Bit 4
X
Bit 3
BP1
Bit 2
BP0
Bit 1
WEN
Bit 0
RDY
Table 3-3.
Bit
Bit 0 (RDY)
Bit 1 (WEN)
Bit 2 (BP0)
Bit 3 (BP1)
Read Status Register Bit Definition
Definition
Bit 0 = “0” (RDY) indicates the device is ready.
Bit 0 = “1” indicates the write cycle is in progress.
Bit 1 = 0 indicates the device is not write enabled. Bit 1 = “1” indicates
the device is write enabled.
See Table 3-4 on page 10 .
See Table 3-4 on page 10 .
Bits 4 ? 6 are 0s when device is not in an internal write cycle.
Bit 7 (WPEN)
See Table 3-5 on page 10 .
Bits 0 ? 7 are “1”s during an internal write cycle.
9
3368J–SEEPR–06/07
相关PDF资料 |
PDF描述 |
|---|---|
| AT25160B-XHL-T | IC EEPROM 16KBIT 20MHZ 8TSSOP |
| AT25256B-SSHL-B | IC EEPROM 256KBIT 20MHZ 8SOIC |
| AT25256T2-10TI-2.7 | IC EEPROM 256KBIT 3MHZ 20TSSOP |
| AT25320AY6-10YH-1.8 | IC EEPROM 32KBIT 20MHZ 8DFN |
| AT25640T1-10TI-2.7 | IC EEPROM 64KBIT 3MHZ 14TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT25128A-W2.7-11 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25128AY4-10YU-1.8 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs |
| AT25128B | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:serial electrically-erasable programmable read only memory |
| AT25128B-CUL-T | 制造商:Atmel Corporation 功能描述: |
| AT25128B-MAHL-T | 功能描述:电可擦除可编程只读存储器 128K Density SPI 16,384 x 8 Organ 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 |
发布紧急采购，3分钟左右您将得到回复。