參數(shù)資料
型號(hào)： XR16C864
廠商： Exar Corporation
元件分類(lèi)： 通用總線(xiàn)功能
英文描述： Quad UART with RX/TX FIFO Counters and 128-byte FIFO(四通用異步接收器/發(fā)送器（帶RX/TX 先進(jìn)先出計(jì)數(shù)器和128字節(jié)先進(jìn)先出）)
中文描述： 四路與異步接收/發(fā)送FIFO的計(jì)數(shù)器和128字節(jié)的FIFO（四通用異步接收器/發(fā)送器（帶了Rx / Tx先進(jìn)先出計(jì)數(shù)器和128字節(jié)先進(jìn)先出））
文件頁(yè)數(shù)： 6/46頁(yè)
文件大?。?/td> 381K
代理商： XR16C864
XR16C864
6
Rev. 1.10
SYMBOL DESCRIPTION
-RXRDY
44
O
Receive Ready (active low). -RXRDY contains the wire “OR-ed” status of all
four receive channel FIFO’s, RXRDY A-D. A logic 0 indicates receive data
ready status, i.e. the RHR is full or the FIFO has one or more RX characters
available for unloading. This pin goes to a logic 1 when the FIFO/RHR is full
or when there are no more characters available in either the FIFO or RHR.
The XR16C864 provides both the combined wire “or’ed” output and individual
channel RXRDY-A-D outputs. RXRDY A-D is discussed in the following
paragraph.
-TXRDY
45
O
Transmit Ready (active low) -TXRDY contains the wire “OR-ed” status of all
four transmit channel FIFO’s, TXRDY A-D. A logic 0 indicates a buffer ready
status, i.e., at least one location is empty and available in one of the TX
channels (A-D). This pin goes to a logic 1 when all four channels have no more
empty locations in the TX FIFO or THR. The XR16C864 provides both the
combined wire “or’ed” output and individual channel TXRDY-A-D outputs.
Individual channel TX status can be read by examining individual internal
registers via -CS and A0-A4 pin functions.
VCC
VCC
10
61,86
I
Power supply inputs.
XTAL1
40
I
Crystal or External Clock Input - Functions as a crystal input or as an
external clock input. A crystal can be connected between this pin and XTAL2
to form an internal oscillator circuit (see figure 8). Alternatively, an external
clock can be connected to this pin to provide custom data rates (see Baud
Rate Generator Programming and optional MIDCLK).
XTAL2
41
O
Output of the Crystal Oscillator or Buffered Clock - (See also XTAL1). Crystal
oscillator output or buffered clock output.
-CD A-B
-CD C-D
99,32
49,83
Carrier Detect (active ow) - These nputs are associated with ndividual UART
channels A through D. A logic 0 on this pin indicates that a carrier has been
detected by the modem for that channel.
I
-CTS A-B
-CTS C-D
8,22
59,73
Clear to Send (active low) - These inputs are associated with individual UART
channels, A through D. A logic 0 on the -CTS pin indicates the modem or data
set is ready to accept transmit data from the 864. Status can be tested by
reading MSR bit-4. This pin only affects the transmit and receive operations
when Auto CTS function is enabled via the Enhanced Feature Register (EFR)
bit-7, for hardware flow control operation.
I
Symbol
Pin
100
Signal
type
Pin Description
相關(guān)PDF資料
PDF描述
XR16C872 Dual UART with 1284 Parallel Port and Plug-and-Play（PnP） Controller(雙通用異步接收器/發(fā)送器（帶1284雙向并行端口和即插即用控制器）)
XR16L2450 2.25V TO 5.5V DUART
XR16L2450IJ 97-3108A20-29S-KIT
XR16L2450IM 2.25V TO 5.5V DUART
XR16L2550IJ LOW VOLTAGE DUART WITH 16-BYTE FIFO
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16C864CQ 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
XR16C864CQ-0A-EVB 功能描述:UART 接口集成電路 Supports C864 100 ld QFP, 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
XR16C864CQ-0B-EB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16C864CQ Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V
XR16C864CQ-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
XR16C864CQTR-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
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(xiě)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

*
*
*