900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Exar Corporation

XR16L788 Datasheet Preview

XR16L788 Datasheet

HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART

No Preview Available !

XR16L788
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
JULY 2008
REV. 1.2.3
GENERAL DESCRIPTION
The XR16L7881 (788), is a 2.97V to 5.5V with 5V
tolerant inputs octal Universal Asynchronous
Receiver and Transmitter (UART). The highly
integrated device is designed for high bandwidth
requirement in communication systems. The global
interrupt source register provides a complete interrupt
status indication for all 8 channels to speed up
interrupt parsing. Each UART has its own 16C550
compatible set of configuration registers, TX and RX
FIFOs of 64 bytes, fully programmable transmit and
receive FIFO trigger levels, TX and RX FIFO level
counters, automatic RTS/CTS or DTR/DSR hardware
flow control with programmable hysteresis, autoamtic
software (Xon/Xoff) flow control, RS-485 half-duplex
direction control with programmable turn-around
delay, Intel or Motorola bus interface and sleep mode
with a wake-up indicator.
NOTE: Covered by US patents #5,649,122 and #5,949,787
APPLICATIONS
Remote Access Servers
Ethernet Network to Serial Ports
Network Management
Factory Automation and Process Control
Point-of-Sale Systems
Multi-port RS-232/RS-422/RS-485 Cards
FEATURES
2.97V to 5.5V with 5V Tolerant Inputs Operation
Single Interrupt Output for all 8 UARTs
Global Interrupt Source for all 8 UARTs
5G “Flat” UART Registers for Configurations
Simultaneous UART Channels Initialization
Auto RS485 Half-duplex Control with Program-
mable Turn-around Delay
A General Purpose 16-bit Timer/Counter
Sleep Mode with Wake-up Indication
Highly Integrated Device for Space Saving
First eight registers are 16C550 compatible
64-byte Transmit and Receive FIFOs
Transmit and Receive FIFO Level Counters
Programmable TX and RX FIFO Trigger Levels
Automatic RTS/CTS or DTR/DSR Flow Control
Selectable Hardware Flow Control Hysteresis
Automatic Xon/Xoff Software Flow Control with
Status Indicator
Infrared (IrDA 1.0) Data Encoder/Decoder
Programmable Data Rate with Prescaler
Up to 6.25 Mbps Serial Data Rate at 5V
100-pin QFP Package (14x20x3 mm)
FIGURE 1. BLOCK DIAGRAM
RST#
A7:A0
D7:D0
IOR#
IOW#
CS#
INT#
16/68#
Data Bus
Interface
Device
Configuration
Registers
16-bit
Timer/Counter
UART Channel 0
UART
Regs
BRG
64 Byte TX FIFO
TX & RX
IR
ENDEC
64 Byte RX FIFO
UART Channel 1
UART Channel 2
UART Channel 3
UART Channel 4
UART Channel 5
UART Channel 6
UART Channel 7
Crystal Osc/Buffer
TX0, RX0, DTR0#,
DSR0#, RTS0#,
CTS0#, CD0#, RI0#
TX7, RX7, DTR7#,
DSR7#, RTS7#,
CTS7#, CD7#, RI7#
XTAL1
XTAL2
TMRCK
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com




Exar Corporation

XR16L788 Datasheet Preview

XR16L788 Datasheet

HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART

No Preview Available !

XR16L788
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
FIGURE 2. PIN OUT OF THE DEVICE
REV. 1.2.3
XTAL2
XTAL1
GND
VCC
TX1
DTR1#
RTS1#
RI1#
CD1#
DSR1#
CTS1#
RX1
TX0
DTR0#
RTS0#
RI0#
CD0#
DSR0#
CTS0#
RX0
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
XR16L788
100-QFP
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
CTS5#
RX5
VCC
GND
TX6
DTR6#
RTS6#
RI6#
CD6#
DSR6#
CTS6#
RX6
TX7
DTR7#
RTS7#
RI7#
CD7#
DSR7#
CTS7#
RX7
ORDERING INFORMATION
PART NUMBER
XR16L788CQ
PACKAGE
100-Lead QFP
XR16L788IQ
100-Lead QFP
OPERATING TEMPERATURE RANGE
0°C to +70°C
-40°C to +85°C
DEVICE STATUS
Active
Active
2


Part Number XR16L788
Description HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
Maker Exar Corporation
Total Page 30 Pages
PDF Download

XR16L788 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 XR16L784 HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
Exar Corporation
2 XR16L788 HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
Exar Corporation





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy