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| 型號(hào)： | MCP4531-502E/MS |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 46/88頁 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 5K 128TAPS 8-MSOP |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 接片： | 129 |
| 電阻（歐姆）： | 5k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 150 ppm/°C |
| 存儲(chǔ)器類型： | 易失 |
| 接口： | I²C（設(shè)備位址） |
| 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-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 674 (CN2011-ZH PDF) |
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MCP453X/455X/463X/465X
DS22096A-page 50
2008 Microchip Technology Inc.
6.2.7
GENERAL CALL
The General Call is a method that the “Master” device
can communicate with all other “Slave” devices. In a
Multi-Master application, the other Master devices are
operating in Slave mode. The General Call address
has two documented formats. These are shown in
Figure 6-11. We have added a MCP45XX/46XX format
in this figure as well.
This will allow customers to have multiple I2C Digital
Potentiometers on the bus and have them operate in a
synchronous fashion (analogous to the DAC Sync pin
functionality). If these MCP45XX/46XX 7-bit com-
mands conflict with other I2C devices on the bus, then
the customer will need two I2C busses and ensure that
the devices are on the correct bus for their desired
application functionality.
Dual Pot devices can not update both Pot0 and Pot1
from a single command. To address this, there are
General Call commands for the Wiper 0, Wiper 1, and
the TCON registers.
Table 6-3 shows the General Call Commands. Three
commands are specified by the I2C specification and
are not applicable to the MCP45XX/46XX (so com-
mand is Not Acknowledged) The MCP45XX/46XX
General Call Commands are Acknowledge. Any other
command is Not Acknowledged.
TABLE 6-3:
GENERAL CALL COMMANDS
Note:
Only one General Call command per issue
of the General Call control byte. Any addi-
tional General Call commands are ignored
and Not Acknowledged.
7-bit
Command
(1, 2, 3)
Comment
‘1000 00d’b Write Next Byte (Third Byte) to Volatile
Wiper 0 Register
‘1001 00d’b Write Next Byte (Third Byte) to Volatile
Wiper 1 Register
‘1100 00d’b Write Next Byte (Third Byte) to TCON
Register
‘1000 010’b
or
‘1000 011’b
Increment Wiper 0 Register
‘1001 010’b
or
‘1001 011’b
Increment Wiper 1 Register
‘1000 100’b
or
‘1000 101’b
Decrement Wiper 0 Register
‘1001 100’b
or
‘1001 101’b
Decrement Wiper 1 Register
Note 1:
Any other code is Not Acknowledged.
These codes may be used by other
devices on the I2C bus.
2:
The 7-bit command always appends a “0”
to form 8-bits. .
3:
“d” is the D8 bit for the 9-bit write value.
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| MCP4531T-103E/MS | 功能描述:數(shù)字電位計(jì) IC Sngl 7B V I2C POT RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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