參數(shù)資料
型號： KSZ8895MQI
廠商： Micrel Inc
文件頁數(shù)： 82/119頁
文件大?。?/td> 0K
描述： IC ETHERNET SWITCH 5PORT 128PQFP
特色產(chǎn)品： KSZ8895MQ Ethernet Switches
標準包裝： 66
系列： *
其它名稱： 576-3997
2011-2012 Microchip Technology Inc.
Preliminary
DS41579C-page 65
PIC16(L)F1782/3
6.2.2.7
Internal Oscillator Clock Switch
Timing
When switching between the HFINTOSC, MFINTOSC
and the LFINTOSC, the new oscillator may already be
shut down to save power (see Figure 6-7). If this is the
case, there is a delay after the IRCF<3:0> bits of the
OSCCON register are modified before the frequency
selection takes place. The OSCSTAT register will
reflect the current active status of the HFINTOSC,
MFINTOSC and LFINTOSC oscillators. The sequence
of a frequency selection is as follows:
1.
IRCF<3:0> bits of the OSCCON register are
modified.
2.
If the new clock is shut down, a clock start-up
delay is started.
3.
Clock switch circuitry waits for a falling edge of
the current clock.
4.
The current clock is held low and the clock
switch circuitry waits for a rising edge in the new
clock.
5.
The new clock is now active.
6.
The OSCSTAT register is updated as required.
7.
Clock switch is complete.
See Figure 6-7 for more details.
If the internal oscillator speed is switched between two
clocks of the same source, there is no start-up delay
before the new frequency is selected. Clock switching
time delays are shown in Table 6-1.
Start-up delay specifications are located in the
oscillator
tables
of
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KSZ8895MQXCA 功能描述:Ethernet Switch 10/100 Base-T/TX I2C, SPI Interface 128-PQFP (14x20) 制造商:microchip technology 系列:- 包裝:托盤 零件狀態(tài):有效 協(xié)議:以太網(wǎng) 功能:開關 接口:I2C，SPI 標準:10/100 Base-T/TX 電壓 - 電源:1.8V，2.5V，3.3V 電流 - 電源:129mA 工作溫度:0°C ~ 70°C 封裝/外殼:128-BFQFP 供應商器件封裝:128-PQFP（14x20） 標準包裝:66
KSZ8895MQXIA 功能描述:Ethernet Switch 10/100 Base-T/TX I2C, SPI Interface 128-PQFP (14x20) 制造商:microchip technology 系列:- 包裝:托盤 零件狀態(tài):有效 協(xié)議:以太網(wǎng) 功能:開關 接口:I2C，SPI 標準:10/100 Base-T/TX 電壓 - 電源:1.8V，2.5V，3.3V 電流 - 電源:129mA 工作溫度:-40°C ~ 85°C 封裝/外殼:128-BFQFP 供應商器件封裝:128-PQFP（14x20） 標準包裝:66
KSZ8895RQ 功能描述:以太網(wǎng) IC 5-port Switch, one SW5-RMII and one P5-RMII Interface RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)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
KSZ8895RQ TR 功能描述:以太網(wǎng) IC 5-port Switch, one SW5-RMII and one P5-RMII Interface RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)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
KSZ8895RQ-EVAL 功能描述:以太網(wǎng)開發(fā)工具 5-port Switch, one SW5-RMII and one P5-RMII Interface - Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)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:
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