參數(shù)資料
型號(hào)： XR17C152CM-0A-EVB
廠商： Exar Corporation
文件頁(yè)數(shù)： 13/62頁(yè)
文件大?。?/td> 0K
描述： EVAL BOARD FOR XR17C152 100TQFP
標(biāo)準(zhǔn)包裝： 1
系列： *
XR17C152
á
5V PCI BUS DUAL UART
REV. 1.2.0
20
2.0
CRYSTAL OSCILLATOR / BUFFER
The 152 includes an on-chip oscillator (XTAL1 and XTAL2). The crystal oscillator provides the system clock to
the Baud Rate Generators (BRG) in each of the 2 UARTs, the 16-bit general purpose timer/counter and
internal logics. XTAL1 is the input to the oscillator or external clock buffer input with XTAL2 pin being the
output. See Programmable Baud Rate Generator in the UART section for programming details.
The on-chip oscillator is designed to use an industry standard microprocessor crystal (parallel resonant with
10-22 pF capacitance load, 100ppm) connected externally between the XTAL1 and XTAL2 pins (see Figure 7).
Alternatively, an external clock can be connected to the XTAL1 pin to clock the internal 2 baud rate generators
for standard or custom rates. However, for external clock frequencies greater than 24MHz, a 2K pull-up may be
necessary on the XTAL2 output (see Figure 8). Typical oscillator connections are shown in Figure 7. For
further reading on oscillator circuit please see application note DAN108 on EXAR’s web site.
FIGURE 7. TYPICAL OSCILLATOR CONNECTIONS
FIGURE 8. EXTERNAL CLOCK CONNECTION FOR EXTENDED DATA RATE
C1
22-47pF
C2
22-47pF
14.7456
MH z
XT A L1
XT A L2
R = 300K to 400K
2K
XTAL1
XTAL2
R1
VCC
External Clock
vcc
gnd
相關(guān)PDF資料
PDF描述
VE-J52-EX CONVERTER MOD DC/DC 15V 75W
SI3056SSI2-EVB BOARD EVAL SI3056/SI3010 SSI
6828281-2 CA 62.5 SC DUP-MTRJ OR SECURE
RHS0E152MCN1GS CAP ALUM 1500UF 2.5V 20% SMD
RBM15DTKD-S288 CONN EDGECARD 30POS .156 EXTEND
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR17C152CM-F 功能描述:UART 接口集成電路 UART 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
XR17C152IM 制造商:EXAR 制造商全稱:EXAR 功能描述:5V PCI BUS DUAL UART
XR17C152IM-F 功能描述:UART 接口集成電路 UART 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
XR17C154 制造商:EXAR 制造商全稱:EXAR 功能描述:5V PCI BUS QUAD UART
XR17C154_05 制造商:EXAR 制造商全稱:EXAR 功能描述:5V PCI BUS QUAD UART
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*