LTC1484CMS8#TRPBF datasheet, PDF

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LTC1484CMS8#TRPBF: DescriptionIC TXRX RS485 LOWPWR 8-MSOP; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size222KB，16 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LTC1484CMS8#TRPBF Overview

IC TXRX RS485 LOWPWR 8-MSOP

LTC1484CMS8#TRPBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Maker	Linear ( ADI )
Parts packaging code	MSOP
package instruction	TSSOP, TSSOP8,.19
Contacts	8
Manufacturer packaging code	MS8
Reach Compliance Code	compliant
ECCN code	EAR99
Differential output	YES
Number of drives	1
Input properties	DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type	LINE TRANSCEIVER
Interface standards	EIA-422; EIA-485
JESD-30 code	R-PDSO-G8
JESD-609 code	e3
length	3 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	70 °C
Minimum operating temperature
Minimum output swing	1.5 V
Maximum output low current	0.004 A
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP8,.19
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	5 V
Certification status	Not Qualified
Maximum receive delay	200 ns
Number of receiver bits	1
Maximum seat height	1.17 mm
Maximum slew rate	0.9 mA
Maximum supply voltage	5.25 V
Minimum supply voltage	4.75 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
maximum transmission delay	60 ns
width	3 mm
Base Number Matches	1

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LTC1484

Low Power

RS485 Transceiver

with Receiver Fail-Safe

FEATURES

DESCRIPTIO

No Damage or Latchup to

15kV ESD (Human

Body Model), IEC-1000-4-2 Level 4 Contact (

8kV)

and Level 3 (

8kV) Air Gap Specifications

Guaranteed High Receiver Output State for Floating,

Shorted or Terminated Inputs with No Signal

Present

Drives Low Cost Residential Telephone Wires

Low Power: I

= 700µA Max with Driver Disabled

= 900µA Max for Driver Enable with No Load

20µA Max Quiescent Current in Shutdown Mode

Single 5V Supply

– 7V to 12V Common Mode Range Permits

±7V

Ground Difference Between Devices on the Data Line

Power Up/Down Glitch-Free Driver Outputs

Up to 32 Transceivers on the Bus

Pin Compatible with the LTC485

Available in 8-Lead

MSOP,

PDIP and SO Packages

The LTC

1484 is a low power RS485 compatible trans-

ceiver. In receiver mode, it offers a fail-safe feature which

guarantees a high receiver output state when the inputs

are left open, shorted together or terminated with no

signal present. No external components are required to

ensure the high receiver output state.

Both driver and receiver feature three-state outputs with

separate receiver and driver control pins. The driver

outputs maintain high impedance over the entire com-

mon mode range when three-stated. Excessive power

dissipation caused by bus contention or faults is pre-

vented by a thermal shutdown circuit that forces the

driver outputs into a high impedance state.

Enhanced ESD protection allows the LTC1484 to with-

stand

±15kV

(human body model), IEC-1000-4-2 level 4

(±8kV) contact and level 3 (±8kV) air discharge ESD

without latchup or damage.

The LTC1484 is fully specified over the commercial and

industrial temperature ranges and is available in 8-lead

MSOP, PDIP and SO packages.

, LTC and LT are registered trademarks of Linear Technology Corporation.

APPLICATIO S

Battery-Powered RS485/RS422 Applications

Low Power RS485/RS422 Transceiver

Level Translator

TYPICAL APPLICATIO

RS485 Interface

LTC1484

RO1

RE1

DE1

DI1

GND1

GND2

1484 TA01

LTC1484

CC1

CC2

120Ω

RO2

RE2

DE2

DI2

Dl1

RO2

Dl1

↑↓

Dl2 = 0

RE1 = RE2 = 0

Driving a 2000 Foot STP Cable

DE1 = V

DE2 = 0

1484 TA01a

LTC1484CMS8#TRPBF Related Products

	LTC1484CMS8#TRPBF	LTC1484CS8#TR	LTC1484CMS8#TR	LTC1484CS8#TRPBF	LTC1484IS8#TRPBF	LTC1484CS8#PBF	LTC1484IS8#PBF	LTC1484CN8#PBF	LTC1484CMS8#PBF	LTC1484IN8#PBF
Description	IC TXRX RS485 LOWPWR 8-MSOP	IC txrx rs485 LP failsafe 8soic	IC txrx rs485 LP failsafe 8msop	IC TXRX RS485 LOWPWR 8-SOIC	IC TXRX RS485 LOWPWR 8-SOIC	IC TXRX RS485 LOWPWR 8-SOIC	IC TXRX RS485 LOWPWR 8-SOIC	IC TXRX RS485 LOWPWR 8-DIP	IC TXRX RS485 LOWPWR 8-MSOP	IC TXRX RS485 LOWPWR 8-DIP
Brand Name	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	conform to	incompatible	incompatible	conform to	conform to	conform to	conform to	conform to	conform to	conform to
Maker	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
Parts packaging code	MSOP	SOIC	MSOP	SOIC	SOIC	SOIC	SOIC	DIP	MSOP	DIP
package instruction	TSSOP, TSSOP8,.19	SOP, SOP8,.25	TSSOP, TSSOP8,.19	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25	SOP, SOP8,.25	DIP, DIP8,.3	TSSOP, TSSOP8,.19	DIP, DIP8,.3
Contacts	8	8	8	8	8	8	8	8	8	8
Manufacturer packaging code	MS8	S8	MS8	S8	S8	S8	S8	N	MS8	N
Reach Compliance Code	compliant	not_compliant	not_compliant	compliant	compliant	compliant	compliant	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Differential output	YES	YES	YES	YES	YES	YES	YES	YES	YES	YES
Number of drives	1	1	1	1	1	1	1	1	1	1
Input properties	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER	LINE TRANSCEIVER
Interface standards	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485
JESD-30 code	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDIP-T8	S-PDSO-G8	R-PDIP-T8
JESD-609 code	e3	e0	e0	e3	e3	e3	e3	e3	e3	e3
Humidity sensitivity level	1	1	1	1	1	1	1	1	1	1
Number of functions	1	1	1	1	1	1	1	1	1	1
Number of terminals	8	8	8	8	8	8	8	8	8	8
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C	85 °C	70 °C	85 °C	70 °C	70 °C	85 °C
Minimum output swing	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V	1.5 V
Maximum output low current	0.004 A	0.004 A	0.004 A	0.004 A	0.004 A	0.004 A	0.004 A	0.004 A	0.004 A	0.004 A
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TSSOP	SOP	TSSOP	SOP	SOP	SOP	SOP	DIP	TSSOP	DIP
Encapsulate equivalent code	TSSOP8,.19	SOP8,.25	TSSOP8,.19	SOP8,.25	SOP8,.25	SOP8,.25	SOP8,.25	DIP8,.3	TSSOP8,.19	DIP8,.3
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	SQUARE	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	IN-LINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	IN-LINE
Peak Reflow Temperature (Celsius)	260	255	235	250	250	260	260	NOT SPECIFIED	260	NOT SPECIFIED
power supply	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum receive delay	200 ns	200 ns	200 ns	200 ns	200 ns	200 ns	200 ns	200 ns	200 ns	200 ns
Number of receiver bits	1	1	1	1	1	1	1	1	1	1
Maximum seat height	1.17 mm	1.75 mm	1.17 mm	1.75 mm	1.75 mm	1.75 mm	1.75 mm	3.937 mm	1.1 mm	3.937 mm
Maximum slew rate	0.9 mA	0.9 mA	0.9 mA	0.9 mA	0.9 mA	0.7 mA	0.9 mA	0.7 mA	0.7 mA	0.9 mA
Maximum supply voltage	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V	5.25 V
Minimum supply voltage	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V	4.75 V
Nominal supply voltage	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V
surface mount	YES	YES	YES	YES	YES	YES	YES	NO	YES	NO
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	INDUSTRIAL	COMMERCIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	THROUGH-HOLE	GULL WING	THROUGH-HOLE
Terminal pitch	0.65 mm	1.27 mm	0.65 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	2.54 mm	0.65 mm	2.54 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	40	20	NOT SPECIFIED	NOT SPECIFIED	30	30	NOT SPECIFIED	30	NOT SPECIFIED
maximum transmission delay	60 ns	60 ns	60 ns	60 ns	60 ns	60 ns	60 ns	60 ns	60 ns	60 ns
width	3 mm	3.9 mm	3 mm	3.9 mm	3.9 mm	3.9 mm	3.9 mm	7.62 mm	3 mm	7.62 mm
Base Number Matches	1	1	1	1	1	1	1	1	1	1
length	3 mm	4.9 mm	3 mm	4.9 mm	4.9 mm	4.9 mm	4.9 mm	-	3 mm	-

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