SP485EEP Sipex Corporation, SP485EEP Datasheet

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SP485EEP

Manufacturer Part Number
SP485EEP
Description
Enhanced low power half-duplex RS-485 transceivers
Manufacturer
Sipex Corporation
Datasheet

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SP485EEP
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SIPEX
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SP485EEP
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SIPEX
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SP485EEP
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SP485EEP-L
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SP485EEP-L
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5 000
DESCRIPTION
The SP481E and the SP481E 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 SP481E feature Sipex's BiCMOS design allowing low power
operation without sacrificing performance. The SP481E and SP481E 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.
SP481EDS/13
+15KV Human Body Model
+15KV IEC1000-4-2 Air Discharge
+8KV IEC1000-4-2 Contact Discharge
+5V Only
Low Power BiCMOS
Driver/Receiver Enable for Multi-Drop
configurations
Low Power Shutdown Mode
(SP481E)
Enhanced ESD Specifications:
®
Enhanced Low Power Half-Duplex
DE 3
RO 1
RE 2
DI 4
SP481E Low Power Half-Duplex RS485 Transceivers
SP481E and SP485E
D
R
1
RS-485 Transceivers
8 Vcc
7 B
6 A
5 GND
SP481E/SP485E
© Copyright 2000 Sipex Corporation

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SP485EEP Summary of contents

Page 1

... RS-485 and RS-422 protocols up to 10Mbps under load. The SP481E is equipped with a low power Shutdown mode. SP481EDS/13 RS-485 Transceivers 8 Vcc GND SP481E and SP485E SP481E Low Power Half-Duplex RS485 Transceivers 1 SP481E/SP485E © Copyright 2000 Sipex Corporation ...

Page 2

... 15pF; see Figures 2 & closed L 2 -7V V +12V -4mA +200mV +4mA -200mV O ID 0.4V V 2.4V -7V V +12V 0V 5.25V 12V 0V 5.25V - © Copyright 2000 Sipex Corporation ...

Page 3

... See Figures 4 & closed 100pF; See Figures 4 & closed 15pF; See Figures 2 & closed 15pF; See Figures 2 & closed 0V, RE=V CC © Copyright 2000 Sipex Corporation ...

Page 4

... Figure 4. RS-485 Driver Timing Test Load #2 Circuit f = 1MHz; t < 10ns 1. PLH 1/ DPLH DPHL t R SP481E Low Power Half-Duplex RS485 Transceivers 4 Test Point 500 < 10ns 1.5V PHL 1/ © Copyright 2000 Sipex Corporation V CC ...

Page 5

... 1MHz; t < 10ns; t < 10ns 1.5V Output normally LOW Output normally HIGH 1. SP481E Low Power Half-Duplex RS485 Transceivers 5 OUTPUTS +0. -0. Inputs Open 1. 0.5V 0. 1.5V t PLH 1. 0.5V 0. © Copyright 2000 Sipex Corporation ...

Page 6

... The improved ESD tolerance is at least 15kV without damage nor latch-up. There are different methods of ESD testing applied: a) MIL-STD-883, Method 3015.7 b) IEC1000-4-2 Air-Discharge c) IEC1000-4-2 Direct Contact SP481E Low Power Half-Duplex RS485 Transceivers 6 © Copyright 2000 Sipex Corporation ...

Page 7

... and and add up to 330 add up to 330 SP481E Low Power Half-Duplex RS485 Transceivers 7 SW2 SW2 SW2 Device Under Test SW2 SW2 SW2 Device Under Test for IEC1000-4-2. f for IEC1000-4-2. or IEC1000-4-2. © Copyright 2000 Sipex Corporation ...

Page 8

... SW2 is switched on. The lower current limiting resistor increases the current charge onto the test point. IEC1000-4-2 Air Discharge Direct Contact 15kV 15kV SP481E Low Power Half-Duplex RS485 Transceivers 8 t=30ns t ) are S ) and the source S value and lower R value in the S Level 8kV 4 8kV 4 © Copyright 2000 Sipex Corporation ...

Page 9

... SP481EDS/13 PACKAGE: PLASTIC DUAL–IN–LINE (NARROW 0.015" min. (0.381min 0.210" max. (5.334 max SP481E Low Power Half-Duplex RS485 Transceivers 9 C Ø 0.300 BSC A (7.620 BSC) © Copyright 2000 Sipex Corporation ...

Page 10

... BSC) H 0.228/0.244 (5.801/6.198) h 0.010/0.020 (0.254/0.498) L 0.016/0.050 (0.406/1.270) Ø 0°/8° (0°/8°) SP481EDS/13 PACKAGE: PLASTIC SMALL OUTLINE (SOIC) (NARROW 45° SP481E Low Power Half-Duplex RS485 Transceivers 10 Ø L © Copyright 2000 Sipex Corporation ...

Page 11

... SP485ECN ....................................................... 0˚C to +70˚C ............................................... 8-pin Narrow SOIC SP485ECP ........................................................ 0˚C to +70˚C ................................................... 8-pin Plastic DIP SP485EEN ...................................................... -40˚C to +85˚C ............................................. 8-pin Narrow SOIC SP485EEP ...................................................... -40˚C to +85˚C ................................................. 8-pin Plastic DIP Please consult the factory for pricing and availability on a Tape-On-Reel option. Corporation ...

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