参数资料
型号: XR16C2550IMTR-F
厂商: Exar Corporation
文件页数: 2/37页
文件大小: 0K
描述: IC UART FIFO 16B DUAL 48TQFP
标准包装: 1,500
特点: *
通道数: 2,DUART
FIFO's: 16 字节
规程: RS232,RS485
电源电压: 2.97 V ~ 5.5 V
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
安装类型: 表面贴装
封装/外壳: 48-TQFP
供应商设备封装: 48-TQFP(7x7)
包装: 带卷 (TR)
XR16C2550
10
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
REV. 1.0.2
To obtain maximum data rate, it is necessary to use full rail swing on the clock input. See external clock
operating frequency over power supply voltage chart in Figure 6.
FIGURE 5. EXTERNAL CLOCK CONNECTION FOR EXTENDED DATA RATE
FIGURE 6. OPERATING FREQUENCY VERSUS POWER SUPPLY CHART.
Requires a 2K ohms pull-up resistor on XTAL2 pin to increase operating speed
2K
XTAL1
XTAL2
R1
VCC
External Clock
vcc
gnd
60
50
40
30
3.0
4.5
5.5
3.5 4.0
5.0
Suppy Voltage
XTA
L1
E
x
te
rn
a
l
Cl
o
c
k
Freq
ue
nc
y
in
MHz.
70
80
85oC
25oC
-40oC
Operating frequency for XR16C2550
with external clock and a 2K ohms
pull-up resistor on XTAL2 pin.
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