參數資料
| 型號： | AD5273BRJZ1-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 9/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC POT DGTL 1K 64POS SOT23 |
| 標準包裝： | 1 |
| 接片： | 64 |
| 電阻（歐姆）： | 1k |
| 電路數： | 1 |
| 溫度系數： | 標準值 300 ppm/°C |
| 存儲器類型： | 非易失 |
| 接口： | I²C（設備位址） |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-8 |
| 供應商設備封裝： | SOT-23-8 |
| 包裝： | 標準包裝 |
| 其它名稱： | AD5273BRJZ1-REEL7DKR |
AD5273
Rev. H | Page 17 of 24
I2C CONTROLLER PROGRAMMING
Write Bit Patterns
ACK. BY
AD5273
ACK. BY
AD5273
ACK. BY
AD5273
SDA
FRAME 1
SLAVE ADDRESS BYTE
SCL
STOP BY
MASTER
START BY
MASTER
0
1
0
11
0
AD0 R/W
0
X
XD5
D4
D3
D2
D1
D0
80
8
FRAME 2
INSTRUCTION BYTE
FRAME 1
DATA BYTE
03224-043
Figure 42. Writing to the RDAC Register
ACK. BY
AD5273
ACK. BY
AD5273
ACK. BY
AD5273
FRAME 1
SLAVE ADDRESS BYTE
STOP BY
MASTER
START BY
MASTER
FRAME 2
INSTRUCTION BYTE
FRAME 1
DATA BYTE
03224-044
SDA
SCL
0
1
0
11
0
AD0 R/W
1
X
XX
X
D5
D4D3D2
D1
D0
8
0
8
08
Figure 43. Activating One-Time Programming
Read Bit Pattern
ACK. BY
AD5273
NO ACK. BY
AD5273
FRAME 1
SLAVE ADDRESS BYTE
STOP BY
MASTER
START BY
MASTER
FRAME 2
DATA BYTE FROM SELECTED
RDAC REGISTER
03224-059
SDA
SCL
0
1
0
11
0
AD0 R/W
E1
E0
D5
D4
D3
D2
D1
D0
0
8
08
Figure 44. Reading Data from the RDAC Register
For users who do not use the software solution, the AD5273 can
be controlled via an I2C-compatible serial bus and is connected
to this bus as a slave device. Referring to Figure 42, Figure 43,
follows:
1.
The master initiates data transfer by establishing a start
condition. A start condition is defined as a high-to-low
transition on the SDA line while SCL is high, as shown in
Figure 42. The byte following the start condition is the
slave address byte, which consists of six MSBs defined as
010110. The next bit is AD0; it is an I2C device address bit.
Depending on the states of the AD0 bits, two AD5273s can
be addressed on the same bus, as shown in Figure 45. The
last LSB is the R/W bit, which determines whether data is
read from or written to the slave device.
The slave address corresponding to the transmitted address
responds by pulling the SDA line low during the ninth
clock pulse (this is termed the acknowledge bit). At this
stage, all other devices on the bus remain idle while the
selected device waits for data to be written to or read from
its serial register.
2.
A write operation contains one more instruction byte than
the read operation. The instruction byte in the write mode
follows the slave address byte. The MSB of the instruction
byte labeled T is the OTP bit. After acknowledging the
instruction byte, the last byte in the write mode is the data
byte. Data is transmitted over the serial bus in sequences of
nine clock pulses (eight data bits followed by an acknowl-
edge bit). The transitions on the SDA line must occur during
the low period of SCL and remain stable during the high
period of SCL, as shown in Figure 42.
3.
In read mode, the data byte follows immediately after the
acknowledgment of the slave address byte. Data is trans-
mitted over the serial bus in sequences of nine clock pulses
(slight difference from write mode, there are eight data bits
followed by a no acknowledge bit). Similarly, the transitions
on the SDA line must occur during the low period of SCL
and remain stable during the high period of SCL, as shown
in Figure 44.
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相關代理商/技術參數 |
參數描述 |
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| AD5273BRJZ50-REEL7 | 功能描述:IC POT DGTL 50K 64POS SOT23 RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:- 標準包裝:3,300 系列:WiperLock™ 接片:257 電阻（歐姆）:100k 電路數:1 溫度系數:標準值 150 ppm/°C 存儲器類型:易失 接口:3 線 SPI（芯片選擇） 電源電壓:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-VDFN 裸露焊盤 供應商設備封裝:8-DFN-EP（3x3） 包裝:帶卷 (TR) |
| AD5273EVAL | 功能描述:BOARD EVAL FOR AD5273 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標準包裝:1 系列:- 主要目的:數字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關產品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| AD5274 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1024-/256-Position, 1% Resistor Tolerance Error, I2C Interface and 50-TP Memory Digital Rheostat |
| AD5274BCPZ-100-RL7 | 功能描述:IC RHEOSTAT 5V 50-TP 256 10MSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:- 標準包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數:1 溫度系數:標準值 300 ppm/°C 存儲器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應商設備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
| AD5274BCPZ-20-RL7 | 功能描述:IC RHEOSTAT 5V 50-TP 256 10MSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:- 標準包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數:1 溫度系數:標準值 300 ppm/°C 存儲器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應商設備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
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