SP3493CN SIPEX [Sipex Corporation], SP3493CN Datasheet

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SP3493CN

Manufacturer Part Number
SP3493CN
Description
+3.3V Low Power Slew Rate Limited RS-485/RS-422 Transceivers
Manufacturer
SIPEX [Sipex Corporation]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SP3493CN
Manufacturer:
SIPEX
Quantity:
20 000
Part Number:
SP3493CN/SP3493
Manufacturer:
OPTEK
Quantity:
5 000
DESCRIPTION
The SP3493 and the 3494 devices are +3.3V, low power transceivers that meet the
specifications of the RS-485 and RS-422 serial protocols. The SP3493 and the 3494 devices
are pin-to-pin compatible with the Sipex SP3490 and the SP3481 devices, respectively, as well
as other popular industry standards. The devices feature Sipex's BiCMOS process, allowing
low power operation without sacrificing performance. The partially slew-rate limited drivers
minimize EMI and reduce reflections caused by improperly terminated cables allowing
error-free data transmission. The SP3493 is a full-duplex low power transceiver that will
deliver a data transmission rate up to 250kbps. The SP3494 is a half-duplex partially slew-rate
limited transceiver that will deliver a data transmission rate up to 2.5Mbps. The SP3494 is
equipped with a low-power shutdown mode and driver/receiver high-Z enable lines.
10/16/02
Operates From A Single +3.3V Supply
Interoperable With +5V Logic
+200mV Receiver Input Sensitivity
-7V to +12V Common-Mode Input
Voltage Range
Devices Allow Up To 32 Transceivers
On The Serial Bus
Driver/Receiver Enable Lines (SP3494)
2nA Low-Power Shutdown Mode (SP3494)
Compatible With The MAX3488, LTC490
and 75179 Industry Standard Pinouts
(SP3493)
Compatible With The MAX3486 and 75176
Industry Standard Pinouts (SP3494)
GND
Vcc
R
D
4
1
2
3
SP3493/3494 +3.3V Low Power Slew-Rate Limited RS-485/RS-422 Transceivers
SP3493
D
®
R
6
8
7
5
A
B
Z
Y
RS-485/RS-422 Transceivers
1
RO 1
RE 2
DE 3
DI 4
+3.3V Low Power
SP3493/SP3494
SP3494
D
R
© Copyright 2002 Sipex Corporation
8
7
6
5
V
B
A
GND
CC

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SP3493CN Summary of contents

Page 1

Operates From A Single +3.3V Supply Interoperable With +5V Logic +200mV Receiver Input Sensitivity -7V to +12V Common-Mode Input Voltage Range Devices Allow Transceivers On The Serial Bus Driver/Receiver Enable Lines (SP3494) 2nA Low-Power Shutdown Mode ...

Page 2

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 ...

Page 3

SPECIFICATIONS (continued and V = 3.3V ± 5% unless otherwise noted. AMB MIN MAX CC PARAMETERS MIN. SP3493 RECEIVER AC Characteristics Maximum Data Rate 250 Receiver Input to Output, t PLH Receiver Input to Output, ...

Page 4

SPECIFICATIONS (continued and V = +3.3V ± 5% unless otherwise noted. AMB MIN MAX CC PARAMETERS MIN. SP3494 RECEIVER AC Characteristics Maximum Data Rate Receiver Input to Output, t PLH Receiver Input to Output, t ...

Page 5

Vcc GND 4 SP3493 Pinout SP3494 Pinout 10/16/02 SP3493/3494 +3.3V Low Power Slew-Rate Limited RS-485/RS-422 Transceivers PIN FUNCTION - SP3493 Pin 1 - ...

Page 6

DESCRIPTION The SP3493/3494 are +3.3V transceivers that meet the electrical specifications of the RS-485 and RS-422 serial protocols. The SP3493/3494 feature Sipex's BiCMOS process allowing low power operation without sacrificing performance. The SP3493 device is a +3.3V full-duplex transceiver that ...

Page 7

Figure 1. Driver DC Test Load Circuit GENERATOR (NOTE 1) 50Ω Figure 3. Driver Differential Output Delay and Transition Time Circuit 50pF ...

Page 8

INPUT 0V t PLH OUTPUT PHL OUTPUT ≈ 1. Figure 8. Driver ...

Page 9

D1 = 0.005" min. (0.127 min 0.100 BSC (2.540 BSC) ALTERNATE END PINS (BOTH ENDS) 10/16/02 SP3493/3494 +3.3V Low Power Slew-Rate Limited RS-485/RS-422 Transceivers PACKAGE: PLASTIC DUAL–IN–LINE (NARROW 0.015" min. (0.381min.) ...

Page 10

10/16/02 SP3493/3494 +3.3V Low Power Slew-Rate Limited RS-485/RS-422 Transceivers PACKAGE: PLASTIC SMALL OUTLINE (SOIC) (NARROW 45° L DIMENSIONS (Inches) Minimum/Maximum 8–PIN (mm) A 0.053/0.069 (1.346/1.748) A1 0.004/0.010 (0.102/0.249 B 0.014/0.019 (0.35/0.49) ...

Page 11

... Model SP3493CN SP3493CP SP3493EN SP3493EP SP3494CN SP3494CP SP3494EN SP3494EP Please consult the factory for pricing and availability on a Tape-On-Reel option. Corporation SIGNAL PROCESSING EXCELLENCE Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 ...

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