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参数资料
| 型号： | XR16C864IQTR-F |
| 厂商： | Exar Corporation |
| 文件页数： | 1/51页 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO 128B QUAD 100QFP |
| 标准包装： | 500 |
| 特点： | * |
| 通道数： | 4，QUART |
| FIFO's： | 128 字节 |
| 规程： | RS232，RS485 |
| 电源电压： | 2.97 V ~ 5.5 V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 100-BQFP |
| 供应商设备封装： | 100-QFP（14x20） |
| 包装： | 带卷 (TR) |
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Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR16C864
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
APRIL 2013
REV. 2.2.0
GENERAL DESCRIPTION
The
XR16C8641
(864)
is
an
enhanced
quad
Universal Asynchronous Receiver and Transmitter
(UART) each with 128 bytes of transmit and receive
FIFOs, transmit and receive FIFO counters and
trigger levels, automatic hardware and software flow
control,
automatic
RS-485
half-duplex
direction
control and data rates of up to 2 Mbps. Each UART
has a set of registers that provide the user with
operating
status
and
control,
receiver
error
indications, and modem serial interface controls.
System interrupts may be tailored to meet design
requirements. An internal loopback capability allows
onboard diagnostics. The 864 is available in the 100-
pin QFP package.
The XR16C864 offers faster
channel status access by providing separate outputs
for TXRDY and RXRDY, offer separate Infrared TX
outputs and a separate clock input for channel C
(CHCCLK). The XR16C864 is compatible with the
industry standard ST16C654 and XR16C854.
NOTE: 1 Covered by U.S. Patent #5,649,122 and #5,949,787.
FEATURES
Added feature in devices with top mark date code of
"F2 YYWW" and newer:
s
5 volt tolerant inputs
2.97 to 5.5 Volt Operation
Pin-to-pin compatible with the industry standard
ST16C654 and XR16C854
Intel or Motorola Data Bus Interface select
Four independent UART channels
s
Register Set Compatible to 16C550
s
Data rates of up to 2 Mbps
s
Transmit and Receive FIFOs of 128 bytes
s
Programmable TX and RX FIFO Trigger Levels
s
Transmit and Receive FIFO Level Counters
s
Automatic Hardware (RTS/CTS) Flow Control
s
Selectable Auto RTS Flow Control Hysteresis
s
Automatic Software (Xon/Xoff) Flow Control
s
Wireless Infrared (IrDA 1.0) Encoder/Decoder
Sleep Mode (200 uA typical)
Crystal oscillator or external clock input
APPLICATIONS
Portable Appliances
Telecommunication Network Routers
Ethernet Network Routers
Cellular Data Devices
Factory Automation and Process Controls
FIGURE 1. XR16C864 BLOCK DIAGRAM
X T A L 1
X T A L 2
C ry s ta l O s c /B u ffe r
In te l o r
M o to ro la
D a ta B u s
In te r fa c e
U A R T C h a n n e l A
1 2 8 B y te T X F IF O
1 2 8 B y te R X F IF O
B R G
IR
E N D E C
T X & R X
U A R T
R e g s
2 .9 7 V to 5 .5 V V C C
8 5 4 B L K
T X B , R X B , IR T X B , D T R B # ,
D S R B # , R T S B # , C T S B # ,
C D B # , R IB # , O P 2 B # ,
O P 1 B # /R S -4 8 5
U A R T C h a n n e l B
(s a m e a s C h a n n e l A )
A 2 :A 0
D 7 :D 0
C S # A -D
1 6 /6 8 #
IN T A -D
IO W #
IO R #
R e s e t
IN T S E L
C H C C L K
T X R D Y # A -D
R X R D Y # A -D
U A R T C h a n n e l C
(s a m e a s C h a n n e l A )
T X A , R X A , IR T X A , D T R A # ,
D S R A # , R T S A # , C T S A # ,
C D A # , R IA # , O P 2 A # ,
O P 1 A # /R S -4 8 5
T X C , R X C , IR T X C , D T R C # ,
D S R C # , R T S C # , C T S C # ,
C D C # , R IC # , O P 2 C # ,
O P 1 C # /R S -4 8 5
U A R T C h a n n e l D
(s a m e a s C h a n n e l A )
T X D , R X D , IR T X D , D T R D # ,
D S R D # , R T S D # , C T S D # ,
C D D # , R ID # , O P 2 D # ,
O P 1 D # /R S -4 8 5
5 V to le ra n t in p u ts ( e x c e p t X T A L 1 )
T C
A E N
D A C K A -D
T X D R Q # A -D
R X D R Q # A -D
D ire c t
M e m o ry
A c c e s s
B C L K A -D
C L K S E L
相关PDF资料 |
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| XR16C864CQTR-F | IC UART FIFO 128B QUAD 100QFP |
| XR16C854DCV-F | IC UART FIFO 128B QUAD 64LQFP |
| XR16C854IQTR-F | IC UART FIFO 128B QUAD 100QFP |
| ATUC64D3-A2UR | IC MCU 32BIT 64KB FLASH 64TQFP |
| ST16C654CQ100-F | IC UART FIFO 64B QUAD 100QFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XR16C872 | 制造商:EXAR 制造商全称:EXAR 功能描述:DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER |
| XR16C872CQ | 制造商:EXAR 制造商全称:EXAR 功能描述:DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER |
| XR16C872IQ | 制造商:EXAR 制造商全称:EXAR 功能描述:DUAL UART WITH 1284 PARALLEL PORT AND PLUG-AND-PLAY CONTROLLER |
| XR16L2450 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.25V TO 5.5V DUART |
| XR16L2450_05 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.25V TO 5.5V DUART |
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