ISL3283EFHZ-T

The Intersil ISL3283E is ±16.5kV IEC61000 ESD Protected,3.0V to 5.5V powered, single receivers that meet both theRS-485 and RS-422 standards for balanced communication.These receivers have very low bus currents (+125µA/-100µA),so they present a true “1/8 unit load” to the RS-485 bus. Thisallows up to 256 receivers on the network without violating theRS-485 specification’s 32 unit load maximum and without usingrepeaters. Receiver inputs feature a “Full Fail-Safe” design, which ensuresa logic high Rx output if Rx inputs are floating, shorted, orterminated but undriven. The ISL3280E and ISL3284E feature an always enabled Rx;the ISL3281E and ISL3285E feature an active high Rx enablepin and the ISL3282E and ISL3283E include an active lowenable pin. All versions are offered in Industrial and ExtendedIndustrial (-40°C to +125°C) temperature ranges. A 26% smaller footprint is available with the ISL3282E andISL3285E TDFN package. These devices, plus the ISL3284E,also feature a logic supply pin (VL) that sets the VOH level ofthe RO output (and the switching points of the RE/RE input) tobe compatible with another supply voltage in mixed voltagesystems.

• IEC61000 ESD protection on RS-485 inputs is ±16.5kV - Class 3 ESD level on all other pins is >5kV HBM
• Pb-free (RoHS compliant)
• Wide supply range is 3.0V to 5.5V
• Specified for +125°C operation
• Logic supply pin (VL) eases operation in mixed supply systems (ISL3282E, ISL3284E, ISL3285E only)
• Full fail-safe (open, short, terminated/undriven)
• True 1/8 unit load allows up to 256 devices on the bus
• High data rates is up to 20Mbps
• Low quiescent supply current is 500µA (max) - Very low shutdown supply current is 20µA (max)
• -7V to +12V common mode input voltage range
• Tri-statable Rx available (active low or high EN input)
• 5V tolerant logic inputs when VCC = 5V