參數(shù)資料
型號(hào)： XR16C850
廠商： Exar Corporation
元件分類： 通用總線功能
英文描述： UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control
中文描述： UART的128字節(jié)FIFO的FIFO計(jì)數(shù)器和半雙工控制
文件頁(yè)數(shù)： 12/55頁(yè)
文件大?。?/td> 331K
代理商： XR16C850
XR16C850
12
Rev. 1.20
or “mark” condition). The inactive state (no data) for
the Infrared decoder interface is a logic 0. MCR bit-
6 selects the standard modem or infrared interface.
During the local loopback mode, the RX pin is
disconnected and TX data is internally connected to
the RX input, see figure 12.
TX / IRTX
11
13
8
8
O
Transmit Data - This pin provides the serial transmit
data from the 850. Two user selectable interface
options are available. The first user option supports
a standard modem interface. The second option
provides an Infrared encoder interface, see figures 2
and 3. When using the standard serial interface, the
TX signal will be a logic 1 during reset, idle (no data),
or when the transmitter is disabled. The inactive
state (no data) for the Infrared encoder interface is a
logic 0. MCR bit-6 selects the standard serial or
infrared interface. During the local loopback mode,
the TX pin is disconnected and TX data is internally
connected to the RX input, see figure 12.
CLKSEL
-
-
13
14
I
Clock Select Bit (internal pull-up). - The 1X or 4X pre-
scaleable clock is selected by this pin. The 1X clock
is selected when CLKSEL is a logic 1 (connected to
VCC) or the 4X is selected when CLKSEL is a logic
0 (connected to GND). MCR bit-7 can override the
state of this pin following reset or initialization (see
MCR bit-7). This pin is not available on 40 and 44 pin
packages which provide MCR bit-7 selection only.
-DMA
-
-
-
20
I
DMA mode enable (internal pull-up). DMA mode is
enabled when this pin is connected to GND. TC, -
DACK, DRQ functions are activated when DMA
mode is selected. TX and RX DMA mode can then
be selected by register EMSR bit 2. Connect this
pin to VCC when DMA mode is not used.
Symbol
Pin
Signal
type
Pin Description
40
44
48
52
SYMBOL DESCRIPTION
相關(guān)PDF資料
PDF描述
XR16C854 QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO
XR16C854CJ QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO
XR16C854CQ QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO
XR16C854CV QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO
XR16C854DCV QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16C850_05 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V UART WITH 128-BYTE FIFO
XR16C850CJ 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
XR16C850CJ-F 功能描述:UART 接口集成電路 UARTW/128BYTE FIFO 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
XR16C850CJTR-F 制造商:Exar Corporation 功能描述:UART 1-CH 128Byte FIFO 3.3V/5V 44-Pin PLCC T/R 制造商:Exar Corporation 功能描述:XR16C850CJTR-F
XR16C850CM 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
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