參數(shù)資料
型號: MCP4242T-503E/UN
廠商: Microchip Technology
文件頁數(shù): 27/88頁
文件大小: 0K
描述: IC RHEOSTAT 50K 2CH 10MSOP
標準包裝: 2,500
系列: WiperLock™
接片: 129
電阻(歐姆): 50k
電路數(shù): 2
溫度系數(shù): 標準值 150 ppm/°C
存儲器類型: 非易失
接口: 4 線 SPI(芯片選擇)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 10-MSOP
包裝: 帶卷 (TR)
其它名稱: MCP4242T-503-E/UN
MCP4242T-503-E/UNTR
MCP4242T-503-E/UNTR-ND
MCP4242T-503E/UNTR
2008 Microchip Technology Inc.
DS22059B-page 33
MCP414X/416X/424X/426X
4.2.2.2
Terminal Control (TCON) Register
This register contains 8 control bits. Four bits are for
Wiper 0, and four bits are for Wiper 1. Register 4-2
describes each bit of the TCON register.
The state of each resistor network terminal connection
is individually controlled. That is, each terminal
connection (A, B and W) can be individually connected/
disconnected from the resistor network. This allows the
system to minimize the currents through the digital
potentiometer.
The value that is written to this register will appear on
the resistor network terminals when the serial
command has completed.
When the WL1 bit is enabled, writes to the TCON
register bits R1HW, R1A, R1W, and R1B are inhibited.
When the WL0 bit is enabled, writes to the TCON
register bits R0HW, R0A, R0W, and R0B are inhibited.
On a POR/BOR this register is loaded with
1FFh (9-bits), for all terminals connected. The
HostController needs to detect the POR/BOR event
and then update the Volatile TCON register value.
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