SP485EEP-L datasheet, PDF - EEWORLD Datasheet

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SP485EEP-L: DescriptionLine Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP8, ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size713KB，11 Pages; ManufacturerSIPEX; Websitehttp://www.sipex.com/; Environmental Compliance

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SP485EEP-L Overview

Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP8, ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8

SP485EEP-L Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	SIPEX
package instruction	ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8
Reach Compliance Code	unknown
Samacsys Description	EXAR SP485EEP-L, Line Transceiver, RS-422/ RS-485, 5 V, 8-Pin PDIP
Differential output	YES
Number of drives	1
High level input current maximum value	0.00001 A
Input properties	DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type	LINE TRANSCEIVER
Interface standards	EIA-422; EIA-485
JESD-30 code	R-PDIP-T8
JESD-609 code	e3
length	9.27 mm
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Minimum output swing	1.5 V
Maximum output low current	0.004 A
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP8,.3
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	NOT APPLICABLE
power supply	5 V
Certification status	Not Qualified
Maximum receive delay	100 ns
Number of receiver bits	1
Maximum seat height	5.33 mm
Maximum supply voltage	5.25 V
Minimum supply voltage	4.75 V
Nominal supply voltage	5 V
surface mount	NO
technology	BICMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT APPLICABLE
maximum transmission delay	60 ns
width	7.62 mm

SP485EEP-L Preview

SP481E/SP485E

Enhanced Low Power Half-Duplex

RS-485 Transceivers

FEATURES

■

+5V Only

■

Low Power BiCMOS

■

Driver/Receiver Enable for Multi-Drop

configurations

■

Low Power Shutdown Mode

(SP481E)

■

Enhanced ESD Specifications:

+15KV Human Body Model

+15KV IEC1000-4-2 Air Discharge

+8KV IEC1000-4-2 Contact Discharge

■

Available in RoHS Compliant, Lead Free

Packaging: NSOIC and PDIP

RO 1

RE 2

DE 3

DI 4

SP485

Top View

GND

SP481E and SP485E

Pinout (Top View)

DESCRIPTION

The

SP481E

and the

SP485E

are a family of half-duplex transceivers that meet the

specifications of RS-485 and RS-422 serial protocols with enhanced ESD performance. The

ESD tolerance has been improved on these devices to over +15KV for both Human Body

Model and IEC1000-4-2 Air Discharge Method. These devices are pin-to-pin compatible with

Sipex's SP481 and SP485 devices as well as popular industry standards. As with the original

versions, the

SP481E

and the

SP485E

feature Sipex's BiCMOS design allowing low power

operation without sacrificing performance. The

SP481E

and

SP485E

meet the requirements

of the RS-485 and RS-422 protocols up to 10Mbps under load. The

SP481E

is equipped with

a low power Shutdown mode.

RO 1

RE 2

DE 3

DI 4

8 Vcc

SP481E and SP485E

5 GND

May11-2007

SP481E Low Power Half-Duplex RS485 Transceivers

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at

these ratings or any other above those indicated in the operation sections

of the specifications below is not implied. Exposure to absolute maximum

rating conditions for extended periods of time may affect reliability.

..........................................................................................................+7V

Input Voltages

Logic........................................................-0.3V to (V

+0.5V)

Drivers..................................................-0.3V to (V

+0.5V)

Receivers.................................................................

±15V

Output Voltages

Logic........................................................-0.3V to (V

+0.5V)

Drivers......................................................................

±15V

Receivers............................................-0.3V to (V

+0.5V)

Storage Temperature.......................................................-65˚C to +150˚C

Power Dissipation per Package

8-pin NSOIC (derate 6.60mW/

C above +70

C)...........................550mW

8-pin PDIP (derate 11.8mW/

C above +70

C)............................1000mW

ELECTRICAL CHARACTERISTICS

MIN

to T

MAX

and V

= 5V

5% unless otherwise noted.

PARAMETERS

SP481E/SP485E DRIVER

DC Characteristics

Differential Output Voltage

Change in Magnitude of Driver

Differential Output Voltage for

Complimentary States

Driver Common-Mode

Output Voltage

Input High Voltage

Input Low Voltage

Input Current

Driver Short-Circuit Current

OUT

= HIGH

OUT

= LOW

SP481E/SP485E DRIVER

AC Characteristics

Maximum Data Rate

Driver Input to Output

(SP485EMN ONLY)

Driver Input to Output

(SP485EMN ONLY)

Driver Skew

Driver Rise or Fall Time

Driver Enable to Output High

closed

Driver Enable to Output Low

closed

Driver Disable Time from Low

closed

Driver Disable Time from High

closed

MIN.

TYP.

MAX.

UNITS

CONDITIONS

GND

1.5

0.2

Volts

Unloaded; R =

∞

;

see Figure 1

with load; R = 50Ω; (RS-422);

see Figure 1

with load; R = 27Ω; (RS-485);see

Figure 1

Volts

µA

R = 27Ω or R = 50Ω;

see Figure 1

R = 27Ω or R = 50Ω;

see Figure 1

Applies to DE, DI, RE

-7V

≤

+12V

-7V

≤

+12V

2.0

0.8

±10

±250

Mbps

RE = 5V, DE = 5V; R

DIFF

= 54Ω,

= C

= 100pF

PLH

; R

DIFF

= 54Ω, C

= C

= 100pF;

see Figures 3 and 5

PLH

; R

DIFF

= 54Ω, C

= C

= 100pF;

See Figures 3 and 5

PHL

; R

DIFF

= 54Ω, C

= C

= 100pF;

see Figures 3 and 5

PHL

; R

DIFF

= 54Ω, C

= C

= 100pF;

see Figures 3 and 5

see Figures 3 and 5,

SKEW

= | t

DPLH

- t

DPHL

From 10% to 90%; R

DIFF

= 54Ω,

= C

= 100pF;

see

Figures 3 &

= 100pF;

see Figures 4 & 6;

= 100pF;

see Figures 4 & 6;

= 100pF;

see Figures 4 & 6;

= 100pF;

see Figures 4 & 6;

May11-2007

SP481E Low Power Half-Duplex RS485 Transceivers

ELECTRICAL CHARACTERISTICS

MIN

to T

MAX

and V

= 5V

5% unless otherwise noted.

PARAMETERS

MIN.

SP481E/SP485E RECEIVER

DC Characteristics

Differential Input Threshold

-0.2

Differential Input Threshold

-0.4

(SP485EMN ONLY)

Input Hysteresis

Output Voltage High

3.5

Output Voltage Low

Three-State (High Impedance)

Output Current

Input Resistance

Input Current (A, B); V

= 12V

Input Current (A, B); V

= -7V

Short-Circuit Current

SP481E/SP485E RECEIVER

AC Characteristics

Maximum Data Rate

Receiver Input to Output

Diff. Receiver Skew It

PLH

-t

PHL

Receiver Enable to

Output Low

Receiver Enable to

Output High

Receiver Disable from Low

Receiver Disable from High

SP481E

Shutdown Timing

Time to Shutdown

Driver Enable from Shutdown

to Output High

Driver Enable from Shutdown

to Output Low

Receiver Enable from

Shutdown to Output High

Receiver Enable from

Shutdown to Output Low

POWER REQUIREMENTS

Supply Voltage

+4.75

Supply Current

SP481E/485E

No Load

SP481E

Shutdown Mode

ENVIRONMENTAL AND MECHANICAL

Operating Temperature

Commercial (_C_)

Industrial (_E_)

-40

(_M_)

-40

Storage Temperature

-65

Package

Plastic DIP (_P)

NSOIC (_N)

May11-2007

TYP.

MAX.

UNITS

CONDITIONS

+0.2

+0.4

0.4

±1

+1.0

-0.8

Volts

µA

kΩ

-7V

≤

+12V

-7V

≤

+12V

= 0V

= -4mA, V

= +200mV

= +4mA, V

= -200mV

0.4V

≤

2.4V; RE = 5V

-7V

≤

+12V

DE = 0V, V

= 0V or 5.25V, V

= 12V

DE = 0V, V

= 0V or 5.25V, V

= -7V

≤

RE = 0V, DE = 0V

PLH

; R

DIFF

= 54Ω,

= C

= 100pF;

Figures 3 & 7

PHL

; R

DIFF

= 54Ω,

= C

L2 =

100pF;

Figures 3 & 7

DIFF

= 54Ω; C

= C

= 100pF;

Figures 3 & 7

= 15pF;

Figures 2 & 8;

closed

= 15pF;

Figures 2 & 8;

closed

= 15pF;

Figures 2 & 8;

closed

= 15pF;

Figures 2 & 8;

closed

100

Mbps

200

300

600

100

1000

+5.25

Volts

RE = 5V, DE = 0V

= 100pF;

See Figures 4 & 6;

closed

= 100pF;

See Figures 4 & 6;

closed

= 15pF;

See Figures 2 & 8;

closed

= 15pF;

See Figures 2 & 8;

closed

900

600

µA

RE, DI = 0V or V

; DE = V

RE = 0V, DI = 0V or 5V; DE = 0V

DE = 0V, RE=V

+70

+85

+125

+150

°C

SP481E Low Power Half-Duplex RS485 Transceivers

PIN FUNCTION

RO 1

Pin 1 – RO – Receiver Output.

Pin 2 – RE – Receiver Output Enable Active LOW.

RE 2

Pin 3 – DE – Driver Output Enable Active HIGH.

Pin 4 – DI – Driver Input.

Pin 5 – GND – Ground Connection.

DE 3

DI 4

SP485

Top View

GND

Pin 6 – A – Driver Output/Receiver Input

Non-inverting.

Pin 7 – B – Driver Output/Receiver Input Inverting.

Pin 8 – Vcc – Positive Supply 4.75V<Vcc< 5.25V.

SP481E and SP485E

Pinout (Top View)

Figure 1. RS-485 Driver DC Test Load Circuit

Receiver

Output

Test Point

Figure 2. Receiver Timing Test Load Circuit

DIFF

15pF

Output

Under C

Test

500

Figure 4. RS-485 Driver Timing Test Load #2 Circuit

Figure 3. RS-485 Driver/Receiver Timing Test Circuit

+3V

DRIVER

OUTPUT

f = 1MHz; t

< 10ns; t

< 10ns

1.5V

PLH

1/2V

DPLH

DPHL

PHL

1/2V

1.5V

DIFFERENTIAL V

OUTPUT 0V

– V

–

SKEW =

| t

DPLH -

DPHL

Figure 5. Driver Propagation Delays

May11-2007

SP481E Low Power Half-Duplex RS485 Transceivers

INPUTS

LINE

CONDITION

No Fault

Fault

OUTPUTS

INPUTS

OUTPUTS

A-B

+0.2V

-0.2V

Inputs Open

Table 2. Receive Function Truth Table

Table 1. Transmit Function Truth Table

+3V

A, B

Figure 6. Driver Enable and Disable Times

f = 1MHz; t

< 10ns; t

< 10ns

1.5V

2.3V

Output normally LOW

1.5V

0.5V

2.3V

Output normally HIGH

0D2

A–B

0D2

–

PHL

INPUT

1.5V

OUTPUT

1.5V

PLH

f = 1MHz; t

< 10ns; t

< 10ns

SKEW =

| t

PHL -

PLH

Figure 7. Receiver Propagation Delays

+3V

1.5V

Output normally HIGH

1.5V

Output normally LOW

0.5V

1.5V

f = 1MHz; t

< 10ns; t

< 10ns

1.5V

Figure 8. Receiver Enable and Disable Times

May11-2007

SP481E Low Power Half-Duplex RS485 Transceivers

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SP485EEP-L Related Products

	SP485EEP-L	SP481ECP-L	SP481EEP-L	SP485ECP-L
Description	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP8, ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP8, ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP8, ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP8, ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8
Is it Rohs certified?	conform to	conform to	conform to	conform to
Maker	SIPEX	SIPEX	SIPEX	SIPEX
package instruction	ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8	ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8	ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8	ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8
Reach Compliance Code	unknown	unknown	unknown	unknown
Differential output	YES	YES	YES	YES
Number of drives	1	1	1	1
High level input current maximum value	0.00001 A	0.00001 A	0.00001 A	0.00001 A
Input properties	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER	DIFFERENTIAL SCHMITT TRIGGER
Interface integrated circuit type	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
JESD-30 code	R-PDIP-T8	R-PDIP-T8	R-PDIP-T8	R-PDIP-T8
JESD-609 code	e3	e3	e3	e3
length	9.27 mm	9.27 mm	9.27 mm	9.27 mm
Number of functions	1	1	1	1
Number of terminals	8	8	8	8
Maximum operating temperature	85 °C	70 °C	85 °C	70 °C
Minimum output swing	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
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	DIP	DIP	DIP	DIP
Encapsulate equivalent code	DIP8,.3	DIP8,.3	DIP8,.3	DIP8,.3
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	IN-LINE	IN-LINE	IN-LINE	IN-LINE
Peak Reflow Temperature (Celsius)	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE
power supply	5 V	5 V	5 V	5 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum receive delay	100 ns	100 ns	100 ns	100 ns
Number of receiver bits	1	1	1	1
Maximum seat height	5.33 mm	5.33 mm	5.33 mm	5.33 mm
Maximum supply voltage	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
Nominal supply voltage	5 V	5 V	5 V	5 V
surface mount	NO	NO	NO	NO
technology	BICMOS	BICMOS	BICMOS	BICMOS
Temperature level	INDUSTRIAL	COMMERCIAL	INDUSTRIAL	COMMERCIAL
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE
Terminal pitch	2.54 mm	2.54 mm	2.54 mm	2.54 mm
Terminal location	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE	NOT APPLICABLE
maximum transmission delay	60 ns	60 ns	60 ns	60 ns
width	7.62 mm	7.62 mm	7.62 mm	7.62 mm

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