參數(shù)資料
型號: MCP4251-502E/SL
廠商: Microchip Technology
文件頁數(shù): 27/59頁
文件大小: 0K
描述: IC DGTL POT 5K 2CH 14SOIC
標(biāo)準(zhǔn)包裝: 57
接片: 257
電阻(歐姆): 5k
電路數(shù): 2
溫度系數(shù): 標(biāo)準(zhǔn)值 150 ppm/°C
存儲器類型: 易失
接口: 4 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: 14-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 14-SOIC
包裝: 管件
其它名稱: MCP4251-502-E/SL
MCP4251-502-E/SL-ND
Micrel, Inc.
KSZ8051MNL/RNL
July 2010
33
M9999-070910-1.0
power state with all internal functions disabled, except for the MII management interface. To properly exit this mode and
return to normal PHY operation, use the following programming sequence:
1. Disable Slow Oscillator Mode by writing a zero to register 11h, bit 5.
2. Disable Power Down Mode by writing a zero to register 0h, bit 11.
3. Initiate software reset by writing a one to register 0h, bit 15.
Reference Circuit for Power and Ground Connections
The KSZ8051MNL/RNL is a single 3.3V supply device with a built-in regulator to supply the 1.2V core. The power and
ground connections are shown in the following figure and table for 3.3V VDDIO.
Figure 8. KSZ8051MNL/RNL Power and Ground Connections
Power Pin
Pin Number
Description
VDD_1.2
2
Decouple with 2.2uF and 0.1uF capacitors-to-ground.
VDDA_3.3
3
Connect to board’s 3.3V supply through ferrite bead.
Decouple with 22uF and 0.1uF capacitors-to-ground.
VDDIO
17
Connect to board’s 3.3V supply for 3.3V VDDIO.
Decouple with 22uF and 0.1uF capacitors-to-ground.
Table 9. KSZ8051MNL/RNL Power Pin Description
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