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参数资料
| 型号： | DS28DG02G-3C+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 27/34页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 2KBIT 2MHZ 36TQFN |
| 标准包装： | 2,500 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 2K (256 x 8) |
| 速度： | 2MHz |
| 接口： | SPI 3 线串行 |
| 电源电压： | 2.2 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 36-WFQFN 裸露焊盘 |
| 供应商设备封装： | 36-TQFN 裸露焊盘（6x6） |
| 包装： | 带卷 (TR) |
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DS28DG02: 2Kb SPI EEPROM with PIO, RTC, Reset, Battery Monitor, and Watchdog
Figure 19. Multiple-Byte Write to Memory and PIO Timing (continued)
CSZ
Multiple-Byte Write Timing, Mode (1,1)
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23
SCK
Instruction
8-bit Address
Data Byte 1
SI
0
0
0
0
A8 0
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CSZ
SCK
t PROG
Data Byte n-2
Data Byte n-1
Data Byte n
SI
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Read Memory and PIO
The read timing diagram for both SPI communication modes is shown in Figure 20. The read-access timing is
independent of the addressed memory type. Upon receiving a read instruction with an address in the range of 000h
to 135h the DS28DG02 transmits data, first the SPI Status register value and then data from the specified target
address. Addresses marked “reserved” read 00h. The address pointer increments with every data byte transmitted
to the master. After data from address 135h is read, the address pointer wraps around to 000h. The master may
continue reading data bytes indefinitely. The read access ends with the positive edge on CSZ. If prior to the Read
Memory and PIO sequence a WRSR command was executed, the address bit embedded in the instruction code is
ignored and data is delivered from addresses 100h and higher. The application firmware should include a
command such as WRDI after WRSR to ensure reading from the intended address.
Figure 20. Read Memory and PIO Timing
CSZ
Read Timing, Mode (0,0)
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
8 Falling Edges for Each Data Byte
SCK
Instruction
8-bit Address
See Note
SI
0
0
0
0
A8 0
1
1
7
6
5
4
3
2
1
0
Data Byte
SO
High Impedance
7
6
5 4 3 2
1)
1
0
7
Note: This edge ends the LS bit (0) of the previous byte and begins the MS bit (7) of the next byte.
1)
The first byte delivered by the device is the SPI Status Byte. After that the memory data follows.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
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