ST485BD-ST485BDR-ST485BN-ST485CD-ST485CDR-ST485CN-ST485XD-ST485XDR Fast Delivery |IC PHOENIX CO.,LIMITED

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Partno	Mfg	Dc	Qty	Available	Descript
ST485BD	ST	N/a	2500	avai	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485BDR	ST	N/a	2248	avai	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485BN	ST	N/a	550	avai	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485BN	STM	N/a	50	avai	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485CD	ST	N/a	465	avai	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485CDR	ST	N/a	1343	avai	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485CN	ST	N/a	1280	avai	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485XD	ST	N/a	50	avai	LOW POWER RS-485/RS-422 TRANSCEIVER
ST485XDR	ST	N/a	6000	avai	LOW POWER RS-485/RS-422 TRANSCEIVER

ST485XDR ,LOW POWER RS-485/RS-422 TRANSCEIVERAPPLICATIONS■ -7V TO 12V COMMON MODE INPUTVOLTAGE RANGE■ DRIVER MAINTAINS HIGH IMPEDANCE IN3-STATE ..
ST490ABDR ,LOW POWER HIGH SPEED RS-485/RS422 TRANSCEIVERELECTRICAL CHARACTERISTICSV = 4.5V to 5.5V, T = -40 to 85°C, unless otherwise specified. Typical va ..
ST490ACDR ,LOW POWER HIGH SPEED RS-485/RS422 TRANSCEIVERPIN CONFIGURATIONPIN DESCRIPTIONPlN N° SYMBOL NAME AND FUNCTION1 V Supply VoltageCC2 RO Receiver Ou ..
ST490ACN ,LOW POWER HIGH SPEED RS-485/RS422 TRANSCEIVERST490ALOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER■ LOW SUPPLY CURRENT: 5mA MAX■ -7 TO 12 COMMON ..
ST491ABN ,LOW POWER HIGH SPEED RS-485/RS422 TRANSCEIVERAPPLICATIONS■ -7 TO 12 COMMON MODE INPUT VOLTAGERANGE■ 70mV TYPICAL INPUT HYSTERESIS■ DESIGNED FOR ..
ST49C101A , High Frequency Clock Multiplier
STM915-16 ,RF POWER MODULE GSM MOBILE APPLICATIONSELECTRICAL SPECIFICATIONS (T 25 C, V , V 8.0 Vdc; V , V 12.5 Vdc)case = S1 S3 = S2 S4 =Symbol Pa ..
STM961-15B ,RF POWER MODULE DIGITAL CELLULAR APPLICATIONSapplications in the915-960 MHz frequency range operating at 26V.ORDER CODE BRAND ..
STM9926 , Dual N-Channel E nhancement Mode F ield E ffect Transistor
STM9926 , Dual N-Channel E nhancement Mode F ield E ffect Transistor
STMAV335TTR ,Low ON resistance triple, SP3T, wide-bandwidth video switchFeatures■ Bi-directional operation■ 3x3 input/3output channels analog video switch■ Wide bandwidth ..
STMAV340 ,Low on resistance quad, SPDT, wide-bandwidth video switchFeatures■ Bi-directional operation■ 4 input/output channels analog video switch■ Wide bandwidth 300 ..

ST485BD-ST485BDR-ST485BN-ST485CD-ST485CDR-ST485CN-ST485XD-ST485XDR
LOW POWER RS-485/RS-422 TRANSCEIVER
1/12November 2002 LOW QUIESCENT CURRENT: 300μA DESIGNED FOR RS-485 INTERFACE
APPLICATIONS -7V TO 12V COMMON MODE INPUT
VOLTAGE RANGE DRIVER MAINTAINS HIGH IMPEDANCEIN
3-STATE ORWITHTHE POWER OFF 70mV TYPICAL INPUT HYSTERESIS 30ns PROPAGATION DELAYS, 5ns SKEW OPERATE FROMA SINGLE 5V SUPPLY CURRENT LIMITING AND THERMAL
SHUTDOWN FOR DRIVER OVERLOAD
PROTECTION ALLOWS UP TO64 TRANSCEIVERS ON
THE BUS
DESCRIPTION
The ST485isal low power transceiver for RS-485
and RS-422 communication. Each part contains
one driver and one receiver.
This transceiver draw 300μA (typ.) of supply
current when unloaded or fully loaded with
disabled drivers. operates froma single 5V supply.
Driver is short-circuit current limited and is
protected against excessive power dissipationby
thermal shutdown circuitry that placed the driver
outputs intoa high-impedance state..
The ST485is designed for bi-directional data
communications on multipoint bus transmission
line (half-duplex applciations).
The ST485is available in three temperature
range: commercial (0°Cto 70°C), industrial (-40°C 850°C) and automotive (-55°Cto 125°C)
ORDERING CODES
ST485
LOW POWER
RS-485/RS-422 TRANSCEIVER
ST485
2/12
PIN CONFIGURATION
PIN DESCRIPTION
TRUTH TABLE (DRIVER) Don’t Care; Z=High Impedance
TRUTH TABLE (RECEIVER) Don’t Care; Z=High Impedance
ABSOLUTE MAXIMUM RATINGS
AbsoluteMaximum Ratingsare those values beyond which damagetothe device may occur. Functional operation under these conditionis
not implied.
ST485
3/12 ELECTRICAL CHARACTERISTICS
(VCC =5V ± 5%,TA =TMINto TMAX, unless otherwise specified. Typical values are referredtoTA= 25°C)
(See Note1)
Note1:All currentsinto device pinsare positive;all cuttentsoutof device pinsare negative;all voltagesare referencedto device ground
unless specified.
Note2: Supply current specificationis validfor loaded transmitters when VDE =0V
Note3: Appliesto peak current. See typical Operating Characteristics.
ST485
4/12
DRIVER SWITCHING CHARACTERISTICSCC =5V ± 5%,TA =T MINtoT MAX, unless otherwise specified. Typical values are referredtoTA =25°C)
(See Note1)
Note1:All currentsinto device pinsare positive;all cuttentsoutof device pinsare negative;all voltagesare referencedto device ground
unless specified.
RECEIVER SWITCHING CHARACTERISTICS
(VCC =5V ± 5%,TA =TMINto TMAX, unless otherwise specified. Typical values are referredtoTA= 25°C)
(See Note1)
Note1:All currentsinto device pinsare positive;all cuttentsoutof device pinsare negative;all voltagesare referencedto device ground
unless specified.
ST485
5/12
TEST CIRCUITS AND TYPICAL CHARACTERISTICS
ST485
6/12
Figure5: Driver Propagation Delay
Figure6: Driver Enable and Disable Time

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