Renesas Electronics America Inc ISL3155EIBZ-T

Mfr. Part

ISL3155EIBZ-T

Manufacturer

Renesas Electronics Corporation. Y-IC is a trusted quality distributor for Renesas and we provide the best products, fast delivery, and professional support to every customer.

Detailed Description

5V half-duplex RS-422/RS-485 transceiver in an 8-SOIC package. One driver and one receiver (1/1). 1 Mbps data rate. Wide industrial temperature range from -40°C to +85°C. Surface-mount. Enhanced receiver hysteresis for better noise immunity. Ideal for long-distance differential serial links and multi-point bus networks. RoHS3 compliant. Tape & Reel for automated assembly.

Key Features

Protocol support: RS-422 and RS-485

Duplex mode: Half-duplex

Channel count: 1 driver / 1 receiver

Supply voltage: 4.5 V to 5.5 V

Data rate: up to 1 Mbps

Receiver hysteresis: 20 mV for improved noise margin

Operating temperature: -40°C to +85°C

Package: 8-SOIC, 3.90 mm body width, standard 1.27 mm lead pitch

Mounting: Surface Mount

RoHS: ROHS3 compliant

Enhanced ESD and built-in protections (check datasheet for exact levels)

Driver enable and receiver enable pins for flexible bus control

Fail-safe receiver behavior helps with open/shorted/idle bus conditions

Key Advantages

Reliable communication over noisy industrial environments thanks to receiver hysteresis and balanced differential signaling

Simple integration into existing RS-485/RS-422 networks

Compatible with standard 5V systems

Compact 8-SOIC package saves board space and supports high-volume SMT production

Robust protection features reduce risk of field failures

Stable performance across industrial temperature range

Straightforward pinout speeds design and reduces time to market

Packaging

Type: Tape & Reel (TR) for automated pick-and-place

Package material: Molded epoxy plastic body with tin-plated leads

Package size: 8-SOIC, body width approx. 3.90 mm; typical body length ~4.9–5.0 mm; height ~1.5 mm; lead pitch 1.27 mm

Pin configuration (typical RS-485 half-duplex SOIC-8):

- RO (Receiver Output)

- RE (Receiver Enable, active low)

- DE (Driver Enable)

- DI (Driver Input)

- A (Bus line A)

- B (Bus line B)

- VCC (5V supply)

- GND

Refer to the datasheet for the exact pin order and mapping.

Thermal characteristics: Typical SOIC-8 θJA is in the ~120–150°C/W range depending on PCB and airflow; check datasheet for exact values

Electrical properties:

- Supply voltage: 4.5 V to 5.5 V

- Data rate: 1 Mbps

- Receiver hysteresis: 20 mV

- Common-mode range: compatible with TIA/EIA-485 standards (±7 V typical)

- Enhanced ESD protection and short-circuit protection (see datasheet for ratings)

Lifecycle

Status: Active and widely used; not nearing discontinuation based on current information

Equivalent or alternative models:

- Renesas/Intersil ISL3156E series: Half-duplex, higher speed options (e.g., up to 20 Mbps), 5V, SOIC-8

- Renesas/Intersil ISL317x series: Various speed and protection grades, 5V, half-duplex, SOIC-8

- Texas Instruments SN75176B: 5V, half-duplex, up to 1 Mbps, SOIC-8

- Texas Instruments SN65HVD12: 5V, half-duplex, 1 Mbps, SOIC-8, improved ESD

- Texas Instruments SN65HVD178x family: 5V, half-duplex, ruggedized, varying speeds, SOIC-8

- Analog Devices ADM485/ADM3485E: 5V, half-duplex, up to 2.5 Mbps, enhanced ESD, SOIC-8

- Maxim Integrated MAX485E: 5V, half-duplex, 2.5 Mbps, enhanced ESD, SOIC-8

- STMicroelectronics ST485B: 5V, half-duplex, 2.5 Mbps, SOIC-8

Important: Always verify pinout, electrical ratings, timing, ESD levels, and enable logic before substituting.

If you need drop-in or pin-compatible replacements or other alternatives, contact our sales team via the Y-IC website for tailored recommendations.

Key Application Areas

Industrial RS-485 networks and multi-drop buses

Building automation and HVAC controllers

PLC communication links and distributed I/O

Motor drives, motion control, and factory automation

Security systems, access control, and alarm panels

Smart meters and energy management

Point-of-sale terminals and kiosks

Lighting control (e.g., DMX512 at 250 kbps)

Remote sensors and data acquisition over long cables

Datasheet

Y-IC provides the most authoritative datasheet for ISL3155EIBZ-T on our product page. We recommend customers download it here to get exact specifications, pinouts, timing, ESD ratings, and design guidelines.

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