參數(shù)資料
型號: XR16C864
廠商: Exar Corporation
元件分類: 通用總線功能
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))
文件頁數(shù): 10/46頁
文件大?。?/td> 381K
代理商: XR16C864
XR16C864
10
Rev. 1.10
SYMBOL DESCRIPTION
R/-W
15
I
Read/Write Strobe (active low) - This function is associated with the 68 mode
only. This pin provides the combined functions for Read or Write strobes. A
logic 1 to 0 transition transfers the contents of the CPU data bus (D0-D7) to
the register selected by -CS and A0-A4. Similarly a logic 0 to 1 transition
places the contents of a 864 register selected by -CS and A0-A4 on the data
bus, D0-D7, for transfer to an external CPU.
-RXRDY A-B
-RXRDY C-D
100,31
50,82
(EMSR register bit-3 = 0)
Receive Ready A-D (active low) - This function provides the RX FIFO/RHR
status for individual receive channels (A-D). A logic 0 indicates there is
receive data to read/unload, i.e., receive ready status with one or more RX
characters available in the FIFO/RHR. This pin is a logic 1 when the FIFO/
RHR is empty or when the programmed trigger level has not been reached.
O
-TXRDY A-B
-TXRDY C-D
5,25
56,81
(EMSR register bit-2 = 0)
These outputs provide the TX FIFO/THR status for individual transmit
channels (A-D). This pin goes to a logic 0 when the FIFO is empty (non-
DMA mode) or when the FIFO falls below the trigger level (DMA mode).
O
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:界面開發(fā)工具 Eval Board for XR16C864CQ Series 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
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