Key facts
- Brand
- Maxim
- Model
- MAX1484
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
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MAXIM MAX1481/MAX1484/MAX1485/MAX1486 Software-Selectable Half-/Full-Duplex Slew-Rate-Limited 12Mbps RS-485/RS-422 Transceivers in MAX Package handbook
The MAX1481, MAX1484, MAX1485, and MAX1486 are 10‑pin µMAX package transceivers that provide software‑selectable half‑ or full‑duplex operation, slew‑rate limiting, and low‑power consumption for RS‑485/RS‑422 communication up to 12 Mbps. Each device contains one driver and one receiver, draws about 300 µA at 5 V, and the MAX1481 offers a shutdown mode with only 0.1 µA current.
Key features include a 1/8‑unit‑load receiver input impedance allowing up to 256 devices on a single bus, reduced EMI through slew‑rate limiting, and operation over a wide temperature range. The devices are suited for hand‑held equipment, battery‑powered systems, industrial‑control LANs, and EMI‑sensitive applications.
Maxim MAX1484 specifications
| Full‑duplex data rate (MAX1481) | 0.250 Mbps |
|---|---|
| Full‑duplex data rate (MAX1484) | 12 Mbps |
| Quiescent current (all devices) | 300 µA |
| Shutdown current (MAX1481) | 0.1 µA |
| Receiver input impedance | 1/8‑unit‑load (≈96 kΩ) |
| Maximum transceivers on bus | 256 |
| Operating temperature range (MAX1481) | 0 °C to +70 °C |
All Maxim MAX1484 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many transceivers can be connected on the bus?
Up to 256 transceivers can be connected on a single RS‑485/RS‑422 bus.
What is the shutdown current of the MAX1481?
The MAX1481 shutdown current is typically 0.1 µA.
What hot‑swap capability do the MAX14840E/MAX14841E provide?
Both devices have hot‑swap inputs that prevent undesired bus transitions during power‑up or hot insertion.
From: Maxim MAX14840E/MAX14841E RS-485 Half-Duplex Transceiver Datasheet
What is the typical supply current when the transceiver is unloaded?
The transceiver draws about 1.5 mA typical supply current when unloaded.
From: Maxim MAX14840E/MAX14841E RS-485 Half-Duplex Transceiver Datasheet