參數(shù)資料
型號(hào)： XR16M554DIV-0B-EVB
廠商： Exar Corporation
文件頁(yè)數(shù)： 1/46頁(yè)
文件大?。?/td> 0K
描述： EVAL BOARD FOR XR16M554DB 64LQFP
標(biāo)準(zhǔn)包裝： 1
系列： *
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XR16M554/554D
1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
MAY 2008
REV. 1.0.0
GENERAL DESCRIPTION
The
XR16M554
(M554)
is
a
quad
Universal
Asynchronous Receiver and Transmitter (UART) with
16 bytes of transmit and receive FIFOs, selectable
receive FIFO trigger levels and data rates of up to 4
Mbps at 3.3 V. Each UART has a set of registers that
provide the user with operating status and control,
receiver error indications, and modem serial interface
controls. An internal loopback capability allows
onboard diagnostics. The M554 is available in a 48-
pin QFN, 64-pin LQFP, 68-pin PLCC and 80-pin
LQFP packages. The 64-pin and 80-pin packages
only offer the 16 mode interface, but the 48- and 68-
pin packages offer an additional 68 mode interface
which
allows
easy
integration
with
Motorola
processors. The XR16M554IV (64-pin) offers three
state
interrupt
output
while
the
XR16M554DIV
provides continuous interrupt output. The XR16M554
is compatible with the industry standard ST16C554.
FEATURES
Pin-to-pin compatible with ST16C454, ST16C554,
TI’s TL16C554A and NXP’s SC16C554B
Intel or Motorola Data Bus Interface select
Four independent UART channels
■ Register Set Compatible to 16C550
■ Data rates of up to 4 Mbps at 3.3 V, 3.125
Mbps at 2.5 V and 2 Mbps at 1.8 V
■ 16 byte Transmit FIFO
■ 16 byte Receive FIFO with error tags
■ 4 Selectable RX FIFO Trigger Levels
■ Full modem interface
1.62V to 3.63V supply operation
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. XR16M554 BLOCK DIAGRAM
XTAL1
XTAL2
Crystal Osc / Buffer
Data Bus
Interface
UART Channel A
16 Byte TX FIFO
16 Byte RX FIFO
BRG
TX & RX
UART
Regs
1.62 V to 3.6 V VCC
GND
554BLK
TXB, RXB, DTRB#,
DSRB#, RTSB#, CTSB#,
CDB#, RIB#
UART Channel B
(same as Channel A)
A2:A0
D7:D0
CSA#
16/68#
CSB#
INTA
INTB
IOW#
IOR#
Reset
INTSEL
TXRDY#A-D
RXRDY#A-D
UART Channel C
(same as Channel A)
TXA, RXA, DTRA#,
DSRA#, RTSA#, CTSA#,
CDA#, RIA#
TXC, RXC, DTRC#,
DSRC#, RTSC#, CTSC#,
CDC#, RIC#
UART Channel D
(same as Channel A)
TXD, RXD, DTRD#,
DSRD#, RTSD#, CTSD#,
CDD#, RID#
CSC#
CSD#
INTC
INTD
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16M554DIV64 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
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XR16M554IJ-0A-EVB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M554IJ-0A 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
XR16M554IJ-0B-EVB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M554IJ-0B 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
XR16M554IJ68 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
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