ISL3179EFRZ by Renesas Electronics | Drivers & Transmitters | Avnet ASIA
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ISL3179EFRZ

Renesas Electronics

Single Transmitter/Receiver RS-422/RS-485 10-Pin DFN EP

Manufacturer Part #: ISL3179EFRZ

Alternate Part #: ISL3179EFRZ


RoHS Compliant

Descriptions

Documents

Subs/Alternatives/Related

Information

Intersil’s ISL3179E and ISL3180E are high ESD Protected 3.3V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. Each device has low bus currents (+220µA/-150µA), so it presents a “1/5 unit load” to the RS-485 bus. This allows up to 160 transceivers on the network without violating the RS-485 specification’s 32 unit load maximum, and without using repeaters. Receiver (Rx) inputs feature a “full fail-safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven. The ISL3179E half duplex version multiplexes the Rx inputs and Tx outputs to allow a transceiver with an output disable function in 8 Ld packages.

Key Features

  • High ESD protection on RS-485 I/O pins
    • ISL3179E : ±16.5kV IEC61000
    • Class 3 HBM level on all other pins (ISL3179E) >9kV
  • Specified for +125°C operation
  • High data rates up to 40Mbps
  • 5V tolerant logic inputs
  • 1/5 unit load allows up to 160 devices on the bus
  • Full fail-safe (open, shorted, terminated/undriven) receiver
  • Hot plug - Tx and Rx outputs remain three-state during power-up
  • Low quiescent current : 4mA (max)
  • Low current shutdown mode : 1µA (max)
  • -7V to +12V common-mode input voltage range
  • Three-state Rx and Tx outputs
  • 16/16.5ns (max) Tx/Rx propagation delays; 1.5ns (max) skew
  • Operates from a single +3.3V supply (10% tolerance)
  • Current limiting and thermal shutdown for driver overload protection
  • Pb-free (RoHS compliant)

Technical Attributes

Description
Value
Find similar Parts
Typical Single Supply Voltage
3.3 V
Receiver Signal Type
Differential
ESD Protection
Yes
Driving Mode
3-State
Product Dimensions
3 x 3 x 0.9 mm
Lead Finish
Matte Tin
Maximum Single Supply Voltage
3.6 V
Power Supply Type
Single
Minimum Single Supply Voltage
3 V
Number of Transmitters
1
Number of Receiver Enables
1
Interface Standards
RS-422|RS-485
Data Rate
40 Mbps
Transmitter Signal Type
Differential
Number of Transceivers
1
Number of Transmitter Enables
1
Maximum Supply Current
4 mA

ECCN / UNSPSC

Description
Value
ECCN:
EAR99
SCHEDULE B:
8541.31.00.00.2
HTSN:
8541.31.00.00.2
UNSPSC:
32101654
UNSPSC VERSION:
V15.1101
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