参数资料
型号: AT25256W-10SI-1.8
厂商: Atmel
文件页数: 6/22页
文件大小: 0K
描述: IC EEPROM 256KBIT 2.1MHZ 8SOIC
标准包装: 94
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 256K (32K x 8)
速度: 500kHz,2.1MHz
接口: SPI 3 线串行
电源电压: 1.8 V ~ 3.6 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
Figure 2. SPI Serial Interface
AT25128/256
Functional
Description
The AT25128/256 is designed to interface directly with the synchronous serial periph-
eral interface (SPI) of the 6800 type series of microcontrollers.
The AT25128/256 utilizes an 8-bit instruction register. The list of instructions and their
operation codes are contained in Table 5. All instructions, addresses, and data are
transferred with the MSB first and start with a high-to-low CS transition.
Table 5. Instruction Set for the AT25128/256
6
AT25128/256
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
0872O–SEEPR–03/05
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