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XR88C681J-F

Description
Serial I/O Controller, 2 Channel(s), 0.125MBps, CMOS, PQCC44, ROHS COMPLIANT, PLASTIC, LCC-44
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size2MB,101 Pages
ManufacturerExar
Environmental Compliance
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XR88C681J-F Overview

Serial I/O Controller, 2 Channel(s), 0.125MBps, CMOS, PQCC44, ROHS COMPLIANT, PLASTIC, LCC-44

XR88C681J-F Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Parts packaging codeLCC
package instructionQCCJ, LDCC44,.7SQ
Contacts44
Reach Compliance Codecompli
ECCN codeEAR99
Address bus width8
boundary scanNO
Bus compatibility8080; 8080A; 8085; 8086; 8088; Z80; Z8000; 68XX; 65XX; 8051; 68HC11
maximum clock frequency7.372 MHz
letter of agreementASYNC, BIT
Data encoding/decoding methodsNRZ
Maximum data transfer rate0.125 MBps
External data bus width8
JESD-30 codeS-PQCC-J44
JESD-609 codee3
length16.585 mm
low power modeYES
Number of I/O lines4
Number of serial I/Os2
Number of terminals44
On-chip data RAM width8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeQCCJ
Encapsulate equivalent codeLDCC44,.7SQ
Package shapeSQUARE
Package formCHIP CARRIER
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
Certification statusNot Qualified
RAM (number of words)128
Maximum seat height4.57 mm
Maximum slew rate15 mA
Maximum supply voltage5.25 V
Minimum supply voltage4.75 V
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formJ BEND
Terminal pitch1.27 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width16.585 mm
uPs/uCs/peripheral integrated circuit typeSERIAL IO/COMMUNICATION CONTROLLER, SERIAL
Base Number Matches1
CMOS Dual Channel
UART (DUART)
June 2006
XR88C681
FEATURES
D
Two Full Duplex, Independent Channels
D
Asynchronous Receiver and Transmitter
D
Quadruple-Buffered Receivers and Dual Buffered
Transmitters
D
Programmable Stop Bits in 1/16 Bit Increments
D
Internal Bit Rate Generators with More than 23 Bit
Rates
D
Independent Bit Rate Selection for Each Transmitter
and Receiver
D
External Clock Capability
D
Maximum Bit Rate: 1X Clock - 1Mb/s, 16X Clock -
125kb/s
D
Normal, AUTOECHO, Local LOOPBACK and
Remote LOOPBACK Modes
D
Multi-function 16 Bit Counter/Timer
D
Interrupt Output with Eight Maskable Interrupt
Conditions
D
Interrupt Vector Output on Acknowledge (40 Pin DIP
and 44 Pin PLCC Packages Only)
GENERAL DESCRIPTION
The EXAR Dual Universal Asynchronous Receiver and
Transmitter (DUART) is a data communications device that
provides two fully independent full duplex asynchronous
communication channels in a single package. The DUART
is designed for use in microprocessor based systems and
may be used in a polled or interrupt driven environment.
The XR88C681 device offers a single IC solution for the
8080/85, 8086/88, Z80, Z8000, 68xx and 65xx
microprocessor families.
ORDERING INFORMATION
Part No.
XR88C681CJ
XR88C681CN/40
XR88C681CP/28
XR88C681CP/40
XR88C681J
XR88C681N/40
XR88C681P/28
XR88C681P/40
Rev. 2.11
E2006
D
Programmable Interrupt Daisy Chain
D
8 General Purpose Outputs (40 Pin DIP and 44 Pin
PLCC Packages Only)
D
7 General Purpose Inputs with Change of States
Detectors on Inputs (40 Pin DIP and 44 Pin PLCC
Packages Only)
D
Multi-Drop Mode Compatible with 8051 Nine Bit
Mode
D
On-Chip Oscillator for Crystal
D
Standby Mode to Reduce Operating Power
D
Compatible with the Motorola MC2681 and
Signetics SCC2692 devices
D
Advanced CMOS Low Power Technology
APPLICATIONS
D
Multimedia Systems
D
Serial to Parallel/Parallel to Serial Converter
D
DTE for Modem Communication Systems
The DUART is fabricated using advanced two layer metal,
with a high performance density EPI/CMOS 1.8 process
to provide high performance and low power consumption,
and is packaged in a 40 pin PDIP, a 28 pin PDIP, and a 44
pin PLCC.
Pin Package
44 PLCC
40 CDIP
28 PDIP
40 PDIP
44 PLCC
40 CDIP
28 PDIP
40 PDIP
Operating
Temperature Range
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C

XR88C681J-F Related Products

XR88C681J-F XR88C681CJ-F
Description Serial I/O Controller, 2 Channel(s), 0.125MBps, CMOS, PQCC44, ROHS COMPLIANT, PLASTIC, LCC-44 Serial I/O Controller, 2 Channel(s), 0.125MBps, CMOS, PQCC44, ROHS COMPLIANT, PLASTIC, LCC-44
Is it lead-free? Lead free Lead free
Is it Rohs certified? conform to conform to
Parts packaging code LCC LCC
package instruction QCCJ, LDCC44,.7SQ QCCJ, LDCC44,.7SQ
Contacts 44 44
Reach Compliance Code compli compli
ECCN code EAR99 EAR99
Address bus width 8 8
boundary scan NO NO
Bus compatibility 8080; 8080A; 8085; 8086; 8088; Z80; Z8000; 68XX; 65XX; 8051; 68HC11 8080; 8080A; 8085; 8086; 8088; Z80; Z8000; 68XX; 65XX; 8051; 68HC11
maximum clock frequency 7.372 MHz 7.372 MHz
letter of agreement ASYNC, BIT ASYNC, BIT
Data encoding/decoding methods NRZ NRZ
Maximum data transfer rate 0.125 MBps 0.125 MBps
External data bus width 8 8
JESD-30 code S-PQCC-J44 S-PQCC-J44
JESD-609 code e3 e3
length 16.585 mm 16.585 mm
low power mode YES YES
Number of I/O lines 4 4
Number of serial I/Os 2 2
Number of terminals 44 44
On-chip data RAM width 8 8
Maximum operating temperature 85 °C 70 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code QCCJ QCCJ
Encapsulate equivalent code LDCC44,.7SQ LDCC44,.7SQ
Package shape SQUARE SQUARE
Package form CHIP CARRIER CHIP CARRIER
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED
power supply 5 V 5 V
Certification status Not Qualified Not Qualified
RAM (number of words) 128 128
Maximum seat height 4.57 mm 4.57 mm
Maximum slew rate 15 mA 15 mA
Maximum supply voltage 5.25 V 5.25 V
Minimum supply voltage 4.75 V 4.75 V
Nominal supply voltage 5 V 5 V
surface mount YES YES
technology CMOS CMOS
Temperature level INDUSTRIAL COMMERCIAL
Terminal surface Matte Tin (Sn) Matte Tin (Sn)
Terminal form J BEND J BEND
Terminal pitch 1.27 mm 1.27 mm
Terminal location QUAD QUAD
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED
width 16.585 mm 16.585 mm
uPs/uCs/peripheral integrated circuit type SERIAL IO/COMMUNICATION CONTROLLER, SERIAL SERIAL IO/COMMUNICATION CONTROLLER, SERIAL
Base Number Matches 1 1
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