DS28DG02: 2Kb SPI EEPROM with PIO, RTC, Reset, Battery Monitor, and Watchdog
Command-Specific Communication—Color Codes
Master-to-Slave
Slave-to-Master
Programming
Communication Examples
Set the WEN Bit in the SPI Status Register (Write Enable)
SEL
WREN DSEL
Clear the WEN Bit in the SPI Status Register (Write Disable)
SEL
WRDI
DSEL
Write to the SPI Status Register Sequence
SEL
WREN DSEL
SEL
WRSR <byte> DSEL
Programming
Note : It is advisable to execute a WRDI command right after the WRSR sequence is completed to ensure read
access to the user memory.
Read Status Register (e.g., to Detect the End of a Write Cycle)
SEL
RDSR <byte> <byte> <byte> DSEL
Continue reading until RDYZ bit is is 0
Refresh PIOs with Power-On Defaults
SEL
RFSH
DSEL
Write 3 Bytes to User Memory Sequence, Starting Address = 067h
SEL
WREN DSEL
SEL
WRITEL <67h> <byte> <byte> <byte> DSEL
Programming
See Read Status register example to test for the end of the write cycle.
Set RTC and Calendar, Starting Address = 129h
SEL
WREN DSEL
SEL
WRITEH <29h>
<7 bytes RTC data>
DSEL
SRAM, no programming time.
Read User Memory Block 1, Starting Address = 040h, 64 Bytes
SEL
READL <40h> <64 bytes memory data> DSEL
Read all PIOs 3 Times, Starting Address = 126, 6 Bytes
SEL
READH <26h>
<6 bytes PIO data>
DSEL
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相关代理商/技术参数
DS28DG02EVKIT 功能描述:存储器 IC 开发工具 RoHS:否 制造商:STMicroelectronics 产品:Reference Boards 工具用于评估:M24LR64-R 存储容量:64 kbit 存储类型:EEPROM 工作电源电压:1.8 V to 5.5 V
DS28DG02G-3C+ 功能描述:电可擦除可编程只读存储器 2Kb SPI 电可擦除可编程只读存储器 w/PIO RTC/Rst/Bat Mtr/Wtdg 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
DS28DG02G-3C+T 功能描述:电可擦除可编程只读存储器 2Kb SPI 电可擦除可编程只读存储器 w/PIO RTC/Rst/Bat Mtr/Wtdg 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
DS28E01-100 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:带SHA-1引擎保护的1K位1-Wire EEPROM
DS28E01-100_12 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1Kb Protected 1-Wire EEPROM with SHA-1 Engine
DS28E01-100+ 功能描述: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
DS28E01G-100+R 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1K-Bit Protected 1-Wire EEPROM with SHA-1 Engine
DS28E01G-100+T 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1K-Bit Protected 1-Wire EEPROM with SHA-1 Engine