-
The ST485A is a low power, high speed transceiver for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration. The ST485A draws 3 mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5 V supply.
Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that place the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic high output if both inputs are open circuit.
The ST485A is designed for bi-directional data communications or multipoint bus transmission lines.特徴
- Latch-up free up to 500 mA
- Current limiting and thermal shutdown for driver overload protection
- Operate from single 5 supply
- 70mV typical input hysteresis
- Low supply current: 5 mA max
- Designed for RS 485 interface applications
- High data rate > 30 Mbps
- Driver maintains high impedance in 3-state or with the power off
- ±4 kV ESD protection
- -7 to 12 common mode input voltage range
All resources
製品スペック (1)
Resource title | Latest update | |||
---|---|---|---|---|
19 Sep 2016 |
19 Sep 2016
|
アプリケーションノート (1)
Resource title | Latest update | |||
---|---|---|---|---|
13 Sep 2018 |
13 Sep 2018
|
パンフレット (1)
Resource title | Latest update | |||
---|---|---|---|---|
26 Nov 2020 |
26 Nov 2020
|
EDA Symbols, Footprints and 3D Models
品質 & 信頼性
サンプル & 購入
製品型番 | 販売代理店からオーダー | STからオーダー | 製品ステータス | ECCN (US) | ECCN (EU) | 梱包タイプ | パッケージ | 温度(℃) | Autoshutdown | Country of Origin | Budgetary Price (US$)*/Qty | 詳細情報 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
最小 | 最大 | |||||||||||||
ST485ABDR | 6 distributors | Buy Direct |
量産中
|
EAR99 | NEC | Tape And Reel | SO-8 | -40 | 85 | - | MOROCCO | 0.82 / 1k |
(*)概算用の希望小売単価(US$)です。現地通貨でのお見積りについては、STのセールス・オフィスまたは販売代理店までお問い合わせください。