參數(shù)資料
型號： KSZ8851-16MQL
廠商： Micrel Inc
文件頁數(shù)： 23/88頁
文件大小： 0K
描述： IC CTLR MAC/PHY NON-PCI 128-PQFP
產品培訓模塊： KSZ8851 10/100 Embedded Controllers
標準包裝： 66
控制器類型： 以太網控制器，MAC/PHY
接口： 總線
電源電壓： 1.8V，2.5V，3.3V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 128-BFQFP
供應商設備封裝： 128-PQFP（14x20）
包裝： 托盤
產品目錄頁面： 1081 (CN2011-ZH PDF)
配用： 576-3292-ND - BOARD EVALUATION KSZ8851-16MLL
其它名稱： 576-3253
PIC18F45J10 FAMILY
DS39682E-page 28
2009 Microchip Technology Inc.
TABLE 3-2:
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
3.3
External Clock Input (EC Modes)
The EC and ECPLL Oscillator modes require an exter-
nal clock source to be connected to the OSC1 pin.
There is no oscillator start-up time required after a
Power-on Reset or after an exit from Sleep mode.
In the EC Oscillator mode, the oscillator frequency
divided by 4 is available on the OSC2 pin. This signal
may be used for test purposes or to synchronize other
logic. Figure 3-2 shows the pin connections for the EC
Oscillator mode.
FIGURE 3-2:
EXTERNAL CLOCK
INPUT OPERATION
(EC CONFIGURATION)
An external clock source may also be connected to the
OSC1 pin in the HS mode, as shown in Figure 3-3. In
this configuration, the divide-by-4 output on OSC2 is
not available.
FIGURE 3-3:
EXTERNAL CLOCK INPUT
OPERATION (HS OSC
CONFIGURATION)
Osc Type
Crystal
Freq.
Typical Capacitor Values
Tested:
C1
C2
HS
4 MHz
27 pF
8 MHz
22 pF
20 MHz
15 pF
Capacitor values are for design guidance only.
These capacitors were tested with the crystals listed
below for basic start-up and operation. These values
are not optimized.
Different capacitor values may be required to produce
acceptable oscillator operation. The user should test
the performance of the oscillator over the expected
VDD and temperature range for the application.
See the notes following this table for additional
information.
Crystals Used:
4 MHz
8 MHz
20 MHz
Note 1:
Higher capacitance increases the stability
of oscillator but also increases the
start-up time.
2:
Since each resonator/crystal has its own
characteristics, the user should consult
the resonator/crystal manufacturer for
appropriate
values
of
external
components.
3:
Rs may be required to avoid overdriving
crystals with low drive level specification.
4:
Always verify oscillator performance over
the VDD and temperature range that is
expected for the application.
OSC1/CLKI
OSC2/CLKO
FOSC/4
Clock from
Ext. System
PIC18F45J10
OSC1
OSC2
Open
Clock from
Ext. System
PIC18F45J10
(HS Mode)
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相關代理商/技術參數(shù)
參數(shù)描述
KSZ8851-16MQL-EVAL 功能描述:以太網開發(fā)工具 Single Ethernet Port + Generic (16-bit) Bus Interface(Lead Free) Eval Board RoHS:否 制造商:Micrel 產品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8851-16MQLI 功能描述:以太網 IC Single Ethernet Port + Generic (16-bit) Bus Interface(Lead Free, I-Temp) RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8851-32MQL 功能描述:以太網 IC 10/100BT Ethernet MAC + PHY with Generic (32-bit) Bus Interface, Lead Free RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8851-32MQLI 功能描述:以太網 IC 10/100BT Ethernet MAC + PHY with Generic (32-bit) Bus Interface (I-Temp) RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8851MLL 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Single Port MAC/PHY Controller with Non PCI Interface
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