Product Overview
ISL8485EABZ is an ESD protected, BiCMOS 5V powered, single transceiver that meet both 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 family is specified for 10% tolerance supplies (4.5V to 5.5V). Device presents 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 Tx outputs to prevent damage if power dissipation becomes excessive. Application includes factory automation, security networks, building environmental control systems. industrial/process control networks, level translators (such as RS-232 to RS-422), RS-232 “extension cords”.
- Half duplex, 32 number of devices allowed on bus, 10Mbps data rate, 500µA quiescent current
- Receiver/driver enable, ±15kV HBM RS-485 I/O pin ESD protection
- Class 3 ESD level on all other pins is <gt/>7kV HBM, common-mode input voltage range from -7V to +12V
- Three-state Rx and Tx outputs
- 30ns propagation delays, 5ns skew
- Current limiting and thermal shutdown for driver overload protection
- 500µA low quiescent current
- 12kohm minimum receiver input resistance (-7V <lt/> VCM <lt/> 12V)
- 10Mbps maximum data rate (min, VCC = 4.5V to 5.5V, TA = +25°C)
- 8 lead SOIC package, operating temperature range from -40 to +125°C
Product details
| Device Type |
RS422 / RS485 Transceiver |
| IC Interface Type |
RS422, RS485 |
| No. of Transmitters |
1 |
| Communication Mode |
Half Duplex |
| Supply Voltage Min |
4.5V |
| Driver Case Style |
SOIC |
| No. of Pins |
8Pins |
| ESD Protection |
±15 kV (HBM) |
| Operating Temperature Min |
-40°C |
| Product Range |
- |
| Automotive Qualification Standard |
- |
| IC Type |
RS422 / RS485 Transceiver |
| No. of Receivers |
1Receivers |
| No. of Drivers |
1Drivers |
| Data Rate Max |
10Mbps |
| Supply Voltage Max |
5.5V |
| IC Case / Package |
NSOIC |
| No. of Nodes |
32 |
| Fail Safe |
Open |
| Operating Temperature Max |
125°C |
| Qualification |
- |
| IC Generic Number |
ISL8485E |
Other details
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
