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參數(shù)資料
| 型號： | XR19L200IL32-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 34/40頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR XR19L200 32QFN |
| 標準包裝： | 1 |
| 系列： | * |
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XR19L200
4
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
REV. 1.0.2
NOTE: Pin type: I=Input, O=Output, I/O= Input/output, OD=Output Open Drain. For CMOS/TTL Voltage levels, ’LOW’
indicates a voltage in the range 0V to VIL and ’HIGH" indicates a voltage in the range VIH to VCC. For RS-232
input voltage levels, ’LOW’ is any voltage < -3V and ’HIGH’ is any voltage > 3V. For RS-232 output voltage levels,
’LOW’ is any voltage < -5V and ’HIGH’ is any voltage > 5V.
I/M#
2
I
Intel or Motorola Bus Select.
When I/M# pin is HIGH, 16 or Intel Mode, the device will operate in the Intel bus type of
interface.
When I/M# pin is LOW, 68 or Motorola mode, the device will operate in the Motorola bus
type of interface.
RESET
(RESET#)
23
I
When I/M# pin is HIGH for Intel bus interface, this input becomes RESET (active high).
When I/M# pin is LOW for Motorola bus interface, this input becomes RESET# (active low).
A 40 ns minimum active pulse on this pin will reset the internal registers and all outputs of
the UART. The UART transmitter output will be held HIGH, the receiver input will be ignored
and outputs are reset during reset period (see
C2+
C2-
15
16
-
Charge pump capacitors. As shown in
Figure 1, a 0.1 uF capacitor should be placed
between these 2 pins.
C1+
C1-
24
25
-
Charge pump capacitors. As shown in
Figure 1, a 0.1 uF capacitor should be placed
between these 2 pins.
VREF+
26
Pwr +5.0V generated by the charge pump.
VREF-
17
Pwr -5.0V generated by the charge pump.
VCC
27
Pwr 3.0V to 5.5V power supply. All CMOS/TTL input pins, except XTAL1, are 5V tolerant.
GND
13
Pwr Power supply common, ground.
GND
-
Pwr The center pad on the backside of the 32-QFN package is metallic and is not electrically
connected to anything inside the device. It must be soldered on to the PCB and may be
optionally connected to GND on the PCB. The thermal pad size on the PCB should be the
approximate size of this center pad and should be solder mask defined. The solder mask
opening should be at least 0.0025" inwards from the edge of the PCB thermal pad.
NC
-
No Connect. Note that in Motorola mode, the IOR# pin also becomes an NC pin.
Pin Descriptions
NAME
32-QFN
PIN#
TYPE
DESCRIPTION
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR19L200IL32-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 |
| XR19L202 | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
| XR19L202IL48 | 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
| XR19L202IL48-0B-EB | 功能描述:界面開發(fā)工具 Supports L202 48 pin QFN,PCI Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR19L202IL48-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 |
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