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參數(shù)資料
| 型號(hào)： | XR16M580IL32-0A-EB |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 3/56頁(yè) |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR16M580-A 32QFN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
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XR16M580
11
REV. 1.0.0
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 16-BYTE FIFO
2.6
Crystal Oscillator or External Clock Input
The M580 includes an on-chip oscillator to produce a clock for the baud rate generators in the device when a
crystal is connected between XTAL1 and XTAL2 as show below. The CPU data bus does not require this clock
for bus operation. The crystal oscillator provides a system clock to the Baud Rate Generators (BRGs) in the
UART. XTAL1 is the input to the oscillator or external clock buffer input with XTAL2 pin being the output. For
programming details, see “Section 2.7, Programmable Baud Rate Generator with Fractional Divisor” on
The on-chip oscillator is designed to use an industry standard microprocessor crystal (parallel resonant,
fundamental frequency with 10-22 pF capacitance load, ESR of 20-120 ohms and 100ppm frequency
tolerance) connected externally between the XTAL1 and XTAL2 pins. Typical oscillator connections are shown
in Figure 7. Alternatively, an external clock can be connected to the XTAL1 pin to clock the internal baud rate
generator for standard or custom rates. The BGA package has XTAL1 only, the external clock is required. For
further reading on oscillator circuit, see application note DAN108 on EXAR’s web site.
FIGURE 7. TYPICAL CRYSTAL CONNECTIONS
C1
22-47pF
C2
22-47pF
Y1
1.8432 MHz
to
24 MHz
R1
0-120
(Optional)
R2
500K - 1M
XTAL1
XTAL2
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| XR16M580IL32-0B-EB | 功能描述:界面開發(fā)工具 Eval Board for XR16M580IL32 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR16M580IL32-0C-EB | 功能描述:界面開發(fā)工具 Eval Board for XR16M580IL32 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR16M580IL32-F | 功能描述:UART 接口集成電路 1.8 HIGH PERFORMANCE UART W/16 RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR16M580IM48 | 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE UART WITH 16-BYTE FIFO |
| XR16M580IM48-0A-EB | 功能描述:界面開發(fā)工具 Eval Board for XR16M580IM48 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
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