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參數(shù)資料
| 型號： | CX24118A-12Z |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Advanced Modulation Digital Satellite Tuner |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC36 |
| 封裝： | 6 X 6 MM, 0.85 MM HEIGHT, PLASTIC, SOT1092-1, HVQFN-36 |
| 文件頁數(shù)： | 33/45頁 |
| 文件大?。?/td> | 494K |
| 代理商： | CX24118A-12Z |
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39
XMEGA A1U [DATASHEET]
Atmel-8385H-AVR-ATxmega64A1U-128A1U-Datasheet–AVR–04/2014
20.
RTC – 16-bit Real-Time Counter
20.1
Features
16-bit resolution
Selectable clock source
32.768kHz external crystal
External clock
32.768kHz internal oscillator
32kHz internal ULP oscillator
Programmable 10-bit clock prescaling
One compare register
One period register
Clear counter on period overflow
Optional interrupt/event on overflow and compare match
20.2
Overview
The 16-bit real-time counter (RTC) is a counter that typically runs continuously, including in low-power sleep modes, to
keep track of time. It can wake up the device from sleep modes and/or interrupt the device at regular intervals.
The reference clock is typically the 1.024kHz output from a high-accuracy crystal of 32.768kHz, and this is the
configuration most optimized for low power consumption. The faster 32.768kHz output can be selected if the RTC needs
a resolution higher than 1ms. The RTC can also be clocked from an external clock signal, the 32.768kHz internal
oscillator or the 32kHz internal ULP oscillator.
The RTC includes a 10-bit programmable prescaler that can scale down the reference clock before it reaches the
counter. A wide range of resolutions and time-out periods can be configured. With a 32.768kHz clock source, the
maximum resolution is 30.5s, and time-out periods can range up to 2000 seconds. With a resolution of 1s, the
maximum timeout period is more than18 hours (65536 seconds). The RTC can give a compare interrupt and/or event
when the counter equals the compare register value, and an overflow interrupt and/or event when it equals the period
register value.
Figure 20-1. Real-time counter overview.
32.768kHz Crystal Osc
32.768kHz Int. Osc
TOSC1
TOSC2
External Clock
DIV32
32kHz int ULP (DIV32)
RTCSRC
10-bit
prescaler
clkRTC
CNT
PER
COMP
=
”match”/
Compare
TOP/
Overflow
相關(guān)PDF資料 |
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| DAMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
| DBMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
| DCMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
| DDMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
| DEMM | FEMALE; MALE, D SUBMINIATURE CONNECTOR, SOLDER, PLUG; RECEPTACLE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CX24118A-12Z,518 | 功能描述:調(diào)諧器 IC SATELLITE TUNER DGTL RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| CX24118A-12Z,557 | 功能描述:調(diào)諧器 IC SATELLITE TUNER DGTL RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| CX24123 | 制造商:CONEXANT 制造商全稱:CONEXANT 功能描述:Demodulator and FEC Decoder Low-power QPSK demodulator for worldwide satellite set-top box applications |
| CX24123-11,518 | 功能描述:IC DEMODULATOR/DECODER 64-TQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| CX24123-11,557 | 功能描述:IC DEMODULATOR/DECODER 64-TQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
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