SP481_04 Datasheet, PDF (1/10 Pages) Sipex Corporation – Low Power Half-Duplex RS-485 Transceivers

SP481/SP483/SP485
Low Power Half-Duplex RS-485 Transceivers
FEATURES
■ +5V Only
■ Low Power BiCMOS
■ Driver/Receiver Enable
■ Slew Rate Limited Driver for
Low EMI (SP483)
■ Low Power Shutdown Mode (SP481
and SP483)
■ RS-485 and RS-422 Drivers/Receivers
RO 1
R
8 V_CC
RE 2
7B
DE 3
6A
D
DI 4
SP485 ^{5 GND}
Top View
SP481, SP483, SP485
Pinout (Top View)
DESCRIPTION
The SP481, SP483, and the SP485 are a family of half-duplex transceivers that meet the
requirements of RS-485 and RS-422. Their BiCMOS design allows low power operation
without sacrificing performance. The SP481 and SP485 meet the requirements of RS-485
and RS-422 up to 5Mbps. Additionally, the SP481 is equipped with a low power Shutdown
mode. The SP483 is internally slew rate limited to reduce EMI and can meet the requirements
of RS-485 and RS-422 up to 250kbps. The SP483 is also equipped with a low power
Shutdown mode.
RO 1
RE 2
DE 3
DI 4
R
D
8 Vcc
7B
6A
5 GND
SP481, SP483, and SP485
Rev. 07/28/04
SP481/483/485 Low Power Half-Duplex RS485 Transceivers
1
© Copyright 2002 Sipex Corporation