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參數(shù)資料
| 型號(hào)： | XR16C2850CM-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 34/51頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART FIFO 128B DUAL 48TQFP |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 特點(diǎn)： | * |
| 通道數(shù)： | 2，DUART |
| FIFO's： | 128 字節(jié) |
| 規(guī)程： | RS232，RS485 |
| 電源電壓： | 2.97 V ~ 5.5 V |
| 帶自動(dòng)流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 帶故障啟動(dòng)位檢測功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 帶CMOS： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-TQFP |
| 供應(yīng)商設(shè)備封裝： | 48-TQFP（7x7） |
| 包裝： | 托盤 |
| 其它名稱： | 1016-1274 |
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XR16C2850
xr
2.97V TO 5.5V DUAL UART WITH 128-BYTE FIFOS
REV. 2.1.3
4
RXRDYB#
23
18
O
UART channel B Receiver Ready (active low). This output provides the
RX FIFO/RHR status for receive channel B. See
Table 2. If this output
is not used, leave it unconnected.
MODEM OR SERIAL I/O INTERFACE
TXA
13
7
O
UART channel A Transmit Data or infrared encoder data. Standard
transmit and receive interface is enabled when MCR[6] = 0. In this
mode, the TX signal will be HIGH during reset or idle (no data). Infrared
IrDA transmit and receive interface is enabled when MCR[6] = 1. In the
Infrared mode, the inactive state (no data) for the Infrared encoder/
decoder interface isLOW. If this output is not used, leave it uncon-
nected.
RXA
11
5
I
UART channel A Receive Data or infrared receive data. Normal receive
data input must idle HIGH. The infrared receiver pulses typically idles
LOW but can be inverted by software control prior going in to the
decoder, see MCR[6] and FCTR[2]. If this pin is not used, tie it to VCC
or pull it high via a 100k ohm resistor.
RTSA#
36
33
O
UART channel A Request-to-Send (active low) or general purpose out-
put. This output must be asserted prior to using auto RTS flow control,
see EFR[6], MCR[1], FCTR[1:0], EMSR[5:4] and IER[6]. For auto
RS485 half-duplex direction control, see FCTR[3]. If this output is not
used, leave it unconnected.
CTSA#
40
38
I
UART channel A Clear-to-Send (active low) or general purpose input.
It can be used for auto CTS flow control, see EFR[7], and IER[7]. This
input should be connected to VCC when not used.
DTRA#
37
34
O
UART channel A Data-Terminal-Ready (active low) or general purpose
output. If this output is not used, leave it unconnected.
DSRA#
41
39
I
UART channel A Data-Set-Ready (active low) or general purpose input.
This input should be connected to VCC when not used.
CDA#
42
40
I
UART channel A Carrier-Detect (active low) or general purpose input.
This input should be connected to VCC when not used.
RIA#
43
41
I
UART channel A Ring-Indicator (active low) or general purpose input.
This input should be connected to VCC when not used.
OP2A#
35
32
O
Output Port 2 Channel A - The output state is defined by the user and
through the software setting of MCR[3]. INTA is set to the active mode
and OP2A# output is LOW when MCR[3] is set to a logic 1. INTA is set
to the three state mode and OP2A# is HIGH when MCR[3] is set to a
logic 0. See MCR[3]. This output can only be used as a general pur-
pose output when interrupts are not used, otherwise it will disturb the
INTA output functionality. If this output is not used, leave it uncon-
nected.
TXB
14
8
O
UART channel B Transmit Data or infrared encoder data. Standard
transmit and receive interface is enabled when MCR[6] = 0. In this
mode, the TX signal will be HIGH during reset or idle (no data). Infrared
IrDA transmit and receive interface is enabled when MCR[6] = 1. In the
Infrared mode, the inactive state (no data) for the Infrared encoder/
decoder interface is LOW. If this output is not used, leave it uncon-
nected.
NAME
44-PLCC
PIN #
48-TQFP
PIN #
TYPE
DESCRIPTION
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16C2850CMTR-F | 制造商:Exar Corporation 功能描述:UART 2-CH 128Byte FIFO 3.3V/5V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR16C2850CMTR-F |
| XR16C2850CP | 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UART WITH 128-byte FIFO’s AND RS-485 HALF DUPLEX CONTROL |
| XR16C2850CP40 | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V AND 5V DUART WITH 128-BYTE FIFO |
| XR16C2850IJ | 制造商:Exar Corporation 功能描述:UART 2-CH 128Byte FIFO 3.3V/5V 44-Pin PLCC 制造商:Rochester Electronics LLC 功能描述: |
| XR16C2850IJ44 | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V AND 5V DUART WITH 128-BYTE FIFO |
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