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參數(shù)資料
| 型號： | AD5259BRMZ50-R7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer |
| 中文描述： | 50K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO10 |
| 封裝： | 3 X 4.90 MM, 1.10 MM HEIGHT, LEAD FREE, MO-187BA, MSOP-10 |
| 文件頁數(shù)： | 16/24頁 |
| 文件大小： | 1039K |
| 代理商： | AD5259BRMZ50-R7 |
AD5259
I
2
C-COMPATIBLE FORMAT
The following generic, write, read, and store/restore control
registers for the AD5259 all refer to the device addresses listed
in Table 5; the mode/condition reference key (S, P, SA, MA,
NA, W, R, and X) is listed below.
S
= Start Condition
Rev. A | Page 16 of 24
P
= Stop Condition
SA
= Slave Acknowledge
MA
= Master Acknowledge
NA
= No Acknowledge
W
= Write
R
= Read
X
= Don’t Care
AD1 and AD0 are two-state address pins.
Table 5. Device Address Lookup
AD1 Address Pin
AD0 Address Pin
0
0
1
0
0
1
1
1
I
2
C Device Address
0011000
0011010
1001100
1001110
GENERIC INTERFACE
Table 6. Generic Interface Format
7-Bit Device Address
(See Table 5)
Slave Address Byte
S
R/W
SA C2 C1 C0 A4 A3 A2 A1 A0 SA D7 D6 D5 D4 D3 D2 D1 D0 SA P
Instruction Byte
Data Byte
Table 7. RDAC-to-EEPROM Interface Command Descriptions
C2
C1
C0
Command Description
0
0
0
Operation Between Interface and RDAC.
0
0
1
Operation Between Interface and EEPROM.
0
1
0
Operation Between Interface and Write Protection Register. See Table 10.
1
0
0
NOP.
1
0
1
Restore EEPROM to RDAC.
1
1
0
Store RDAC to EEPROM.
WRITE MODES
Table 8. Writing to RDAC Register
7-Bit Device Address
(See Table 5)
Slave Address Byte
S
0
SA 0
0
0
0
0
0
0
0
SA D7 D6 D5 D4 D3 D2 D1 D0 SA P
Data Byte
Instruction Byte
Table 9. Writing to EEPROM Register
7-Bit Device Address
(See Table 5)
Slave Address Byte
S
0
SA 0
0
1
0
0
0
0
0
SA D7 D6 D5 D4 D3 D2 D1 D0 SA P
Data Byte
Instruction Byte
Table 10. Activating/Deactivating Software Write Protect
7-Bit Device Address
(See Table 5)
Slave Address Byte
S
0
SA 0
1
0
0
0
0
0
0
SA 0
0
0
0
0
0
0
WP SA P
Instruction Byte
Data Byte
In order to activate the write protection mode, the WP bit in Table 10 must be logic high. To deactivate the write protection, the
command must be sent again, except with the WP in logic zero state. WP is reset to the deactivated mode if power is cycled off and on.
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| AD5259BRMZ5-R7 | 功能描述:IC POT DGTL 5K 256POS 10MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)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(shù):1 溫度系數(shù):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(yīng)商設(shè)備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
| AD5259EVAL | 功能描述:BOARD EVAL FOR AD5259 DGTL POT 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:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| AD5259EVAL2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Nonvolatile, I2C-Compatible 256-Position, Digital Potentiometer |
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