參數(shù)資料
型號(hào)： XR16L580
廠商： Exar Corporation
英文描述： SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
中文描述： 2.25V至5.5V的最小的16字節(jié)FIFO和省電的UART
文件頁(yè)數(shù)： 8/47頁(yè)
文件大小： 285K
代理商： XR16L580
XR16L580
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
á
REV. 1.2.0
8
2.8
The L580 includes an on-chip oscillator (XTAL1 and XTAL2) to generate a clock when a crystal is connected
between the XTAL1 and XTAL2 pins of the device. Alternatively, an external clock can be supplied through the
XTAL1 pin. The CPU data bus does not require this clock for bus operation. The crystal oscillator provides a
system clock to the Baud Rate Generators (BRG) section found in each of the UART. XTAL1 is the input to the
oscillator or external clock input and XTAL2 pin is the bufferred output which can be used as a clock signal for
other devices in the system. Please note that the input XTAL1 is not 5V tolerant and therefore, the maximum
voltage at the pin should be VCC when an external clock is supplied. For programming details, see
“Programmable Baud Rate Generator.”
F
IGURE
4. T
YPICAL
C
RYSTAL
CONNECTIONS
Crystal or External Clock Input
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 (see Figure 5). When VCC = 5V, the on-
chip oscillator can operate with a crystal whose frequency is not greater than 24 MHz. On the other hand, the
L580 can accept an external clock of up to 50MHz at XTAL1 pin, with a 2K ohms pull-up resistor on XTAL2 pin
(as shown in
Figure 5
). This translates to a maximum of 3.125Mbps serial data rate at 5V.
T
ABLE
2: INT (IRQ#) P
IN
O
PERATION
F
OR
R
ECEIVER
FCR B
IT
-0 = 0
(FIFO D
ISABLED
)
FCR B
IT
-0 = 1
(FIFO E
NABLED
)
INT Pin
(16/68# = 1)
0 = no data
1 = 1 byte
0 = FIFO below trigger level
1 = FIFO above trigger level
IRQ# Pin
(16/68# = 0)
1 = no data
0 = 1 byte
1 = FIFO below trigger level
0 = FIFO above trigger level
C1
22-47pF
C2
22-47pF
Y1
1.8432 MHz
to
24 MHz
R1
0-120
(Optional)
R2
500K - 1M
XTAL1
XTAL2
相關(guān)PDF資料
PDF描述
XR16L580IL SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L580IM SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L651 2.5V, 3.3V and 5V Low Power UART with 32-Byte FIFO(2.5V, 3.3V和5V 低功耗通用異步接收器/發(fā)送器（帶32字節(jié)先進(jìn)先出）)
XR16L784 HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L78464-TQFP HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16L580_07 制造商:EXAR 制造商全稱:EXAR 功能描述:SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
XR16L580IL 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
XR16L580IL-0A-EVB 功能描述:UART 接口集成電路 Supports L580 32 pin QFN, ISA Interface 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
XR16L580IL-0B-EVB 功能描述:UART 接口集成電路 Supports L580 32 pin QFN, PCI Interface 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
XR16L580IL24 功能描述:UART 接口集成電路 UART w/ POWER SAVE 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
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

*
*
*