参数资料
型号: MCP4231T-502E/ML
厂商: Microchip Technology
文件页数: 27/59页
文件大小: 0K
描述: IC POT DGTL DUAL 5K SPI 16QFN
标准包装: 3,300
接片: 129
电阻(欧姆): 5k
电路数: 2
温度系数: 标准值 150 ppm/°C
存储器类型: 易失
接口: 4 线 SPI(芯片选择)
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-VQFN 裸露焊盘
供应商设备封装: 16-QFN-EP(4x4)
包装: 带卷 (TR)
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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