DATASHEET
ISL8488E, ISL8489E, ISL8490E, ISL8491E FN6073
Rev.4.00
July 26, 2007 В±15kV ESD Protected, 5V, Low Power, High Speed and Slew Rate Limited, Full
Duplex, RS-485/RS-422 Transceivers
The ISL8488E, ISL8489E, ISL8490E, ISL8491E devices are
ESD protected, BiCMOS, 5V powered, single transceivers
that meet both the RS-485 and RS-422 standards for
balanced communication. Each driver output and receiver
input is protected against В±15kV ESD strikes, without
latch-up. Unlike competitive versions, these Intersil devices
are specified for 10% tolerance supplies (4.5V to 5.5V). Features RS-485 I/O Pin ESD Protection пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ пЂ®пЂ п‚±15kV HBM
-Class 3 ESD Level on all Other Pins >7kV HBM High Data Rates (ISL8490E, ISL8491E) up to 10Mbps Slew Rate Limited for Error Free Data Transmission
(ISL8488E, ISL8489E) These devices are configured for full duplex (separate Rx
input and Tx output pins) applications, so they are ideal for
RS-422 networks requiring high ESD tolerance on the bus
pins. The ISL8488E, ISL8490E are 8 Ld versions without Rx
and Tx output enables. The other two versions include Rx
and Tx output enable pins in a standard 14 Ld pinout. Single Unit Load Allows up to 32 Devices on the Bus
(See ISL4489E, ISL4491E for 256 Devices on Bus) Low Quiescent Current:
-120ВµA (ISL8488E)
-140ВµA (ISL8489E)
-370ВµA (ISL8490E, ISL8491E) The ISL8488E, ISL8489E utilize slew rate limited drivers …