Overview
Description
The ISL8483E and ISL8485E are ESD protected, BiCMOS 5V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. Each driver output/receiver input is protected against ±15kV ESD strikes without latch-up. Unlike competitive devices, this Renesas family is specified for 10% tolerance supplies (4. 5V to 5. 5V). The ISL8483E uses slew rate limited drivers that reduce EMI and minimize reflections from improperly terminated transmission lines or unterminated stubs in multidrop and multipoint applications. Data rates up to 10Mbps are achievable by using the ISL8485E, which features higher slew rates. Both devices present a “single unit load” to the RS-485 bus, which allows up to 32 transceivers on the network. Receiver (Rx) inputs feature a “fail-safe if open” design, which ensures a logic high Rx output if Rx inputs are floating. Driver (Tx) outputs are short-circuit protected even for voltages exceeding the power supply voltage. Additionally, on-chip thermal shutdown circuitry disables the Tx outputs to prevent damage if power dissipation becomes excessive. These half duplex configurations multiplex the Rx inputs and Tx outputs to allow transceivers with Rx and Tx disable functions in 8 Ld packages.
Features
- Pb-Free (RoHS compliant)
- Extended industrial temperature options (+125°C)
- RS-485 I/O pin ESD protection: ±15kV HBM
- Class 3 ESD level on all other pins: >7kV HBM
- Specified for 10% tolerance supplies
- High data rate version (ISL8485E): up to 10Mbps
- Slew rate limited version for error free data transmission (ISL8483E): up to 250kbps
- Single unit load allows up to 32 devices on the bus
- 1nA low current Shutdown mode (ISL8483E)
- Low quiescent current:
- 160μA (ISL8483E)
- 500μA (ISL8485E)
- -7V to +12V common-mode input voltage range
- Three-state Rx and Tx outputs
- 30ns propagation delays, 5ns skew (ISL8485E)
- Operate from a single +5V supply (10% tolerance)
- Current limiting and thermal shutdown for driver overload protection
Comparison
Applications
Applications
- Factory Automation
- Security Networks
- Building Environmental Control Systems
- Industrial/Process Control Networks
- Level Translators (eg, RS-232 to RS-422)
- RS-232 "Extension Cords"
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
ISL8485EABZ Active Samples Available
Buy Now
|
SOICN | Tube | 3 | 0.7205 | Get Samples, |
| SOICN | Reel | 3 | 0.846 | ||
ISL8485ECBZ Active Samples Available
Buy Now
|
SOICN | Tube | 3 | Get Samples, | |
| SOICN | Reel | 3 | 0.6841 | ||
ISL8485EIBZ Active Samples Available
Buy Now
|
SOICN | Tube | 3 | 0.7423 | Get Samples, |
ISL8485EIBZ-T Active Samples Available
Buy Now
|
SOICN | Reel | 3 | Get Samples, |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product