參數(shù)資料
型號: MCP4161-502E/P
廠商: Microchip Technology
文件頁數(shù): 27/88頁
文件大小: 0K
描述: IC POT DGTL SNGL 5K SPI 8DIP
標準包裝: 60
系列: WiperLock™
接片: 257
電阻(歐姆): 5k
電路數(shù): 1
溫度系數(shù): 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: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應商設(shè)備封裝: 8-PDIP
包裝: 管件
產(chǎn)品目錄頁面: 675 (CN2011-ZH PDF)
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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