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参数资料
| 型号： | RTC-4574NBB |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO22 |
| 封装： | SON-22 |
| 文件页数： | 7/14页 |
| 文件大小： | 620K |
| 代理商： | RTC-4574NBB |
30
XMEGA C3 [DATASHEET]
8492F–AVR–07/2013
14.4
Input sensing
Input sensing is synchronous or asynchronous depending on the enabled clock for the ports, and the configuration is
shown in Figure 14-7.
Figure 14-7. Input sensing system overview.
When a pin is configured with inverted I/O, the pin value is inverted before the input sensing.
14.5
Alternate Port Functions
Most port pins have alternate pin functions in addition to being a general purpose I/O pin. When an alternate function is
enabled, it might override the normal port pin function or pin value. This happens when other peripherals that require pins
are enabled or configured to use pins. If and how a peripheral will override and use pins is described in the section for
that peripheral. “Pinout and Pin Functions” on page 49 shows which modules on peripherals that enable alternate
functions on a pin, and which alternate functions that are available on a pin.
D
Q
R
INVERTED I/O
Interrupt
Control
D
Q
R
Pxn
Synchronizer
INn
EDGE
DETECT
Synchronous sensing
EDGE
DETECT
Asynchronous sensing
IRQ
Synchronous
Events
Asynchronous
Events
相关PDF资料 |
PDF描述 |
|---|---|
| RTC-4574SAB-0 | 0 TIMER(S), REAL TIME CLOCK, PDSO14 |
| RTC-4574SAB-3 | 0 TIMER(S), REAL TIME CLOCK, PDSO14 |
| RTC-4574JEB | 0 TIMER(S), REAL TIME CLOCK, PDSO20 |
| RTC-4701JEB | REAL TIME CLOCK, PDSO20 |
| RTC-62423B-0 | REAL TIME CLOCK, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RTC-4574SA | 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 0.5uA@3ViTyp.j 10.1~5.0~3.2mm +85 -40 5}23ppm@+25/3.0V 10.1mm 5mm 3.2mm Cut Tape 制造商:Epson Toyocom 功能描述:RTC module,3Wire Serial,Alarm,SOP14 |
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