5V, ±15kV ESD Protected, Two Port, Dual Protocol (RS-232/RS-485) Transeiver in a QFN Package
跳转至页面部分：
Back to top
扩展 ECAD 模块
概览
描述
The ISL33354E, ISL33357E are two port interface ICs where port 1 is configured as a dual (2 Tx, 2 Rx) RS-232 transceiver, and port 2 is a single RS-485/422 transceiver. An on-board charge pump generates RS-232 compliant ±5V Tx output levels from a single VCC supply as low as 4. 5V. The transceivers are RS-232 compliant, with the Rx inputs handling up to ±25V. The port 2 transceiver supports both the RS-485 and RS-422 differential communication standards. The receiver features full fail-safe operation, so the Rx output remains in a high state if the inputs are open or shorted together. The transmitter supports two data rates, one of which is slew rate limited for problem free communication at low data rates. The active low Rx enable pin (RE485) allows Tx/Rx direction control, via a single signal, simply by connecting the corresponding DE485 and RE485 pins together. The ISL33354E and ISL33357E also include a shutdown function, which disables the Tx and Rx outputs, disables the charge pumps and places the IC in a low current (55µA) mode. The ISL33357E is a QFN packaged device for space constrained applications.
特性
- ±15kV (HBM) ESD protected bus pins (RS-232 or RS-485)
- Operates from a single 5V supply
- Two independent ports: port 1 set for RS-232 (2 transceivers) and port 2 for RS-485/RS-422 (1 transceiver)
- True flow-through pinouts (Rx inputs and Tx outputs all on the same side) simplify board layouts
- Pb-free (RoHS compliant)
- Full fail-safe (open/short) RS-485/422 port 2 Rx
- User selectable RS-485 data rates
- Fast speed: up to 20Mbps
- Slew rate limited: up to 115kbps
- Fast RS-232 data rate: 460kbps (Minimum)
- Small charge pump capacitors: 4 x 0.1µF
- Low current shutdown mode: 55µA
- QFN package saves board space (ISL33357E only)
文档
| 文档标题 | 类型 | 日期 | |
|---|---|---|---|
PDF1.32 MB
|
数据手册
|
||
PDF1023 KB
|
应用文档
|
||
PDF207 KB
|
应用文档
|
||
PDF474 KB
|
应用文档
|
||
PDF178 KB
|
应用文档
|
||
PDF513 KB
|
应用文档
|
||
PDF826 KB
|
应用文档
|
||
PDF443 KB
|
应用文档
|
||
PDF582 KB
|
应用文档
|
||
PDF440 KB
|
应用文档
|
||
PDF338 KB
|
应用文档
|
||
PDF365 KB
|
应用文档
|
||
PDF375 KB
|
应用文档
|
||
PDF4.91 MB
|
手册
|
||
PDF1.17 MB
|
End Of Life Notice
|
||
PDF156 KB
|
其他
|
||
PDF253 KB
|
其他
|
||
PDF359 KB
|
其他
|
||
PDF580 KB
|
其他
|
||
PDF208 KB
|
Price Increase Notice
|
||
PDF326 KB
|
产品变更通告
|
||
PDF398 KB
|
产品变更通告
|
||
PDF300 KB
|
技术摘要
|
||
PDF328 KB
|
技术摘要
|
||
白皮书
|
|||
白皮书
|
设计和开发
软件与工具
模块
ECAD 模块
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.
产品选择
Processing table
| QFN | Tube | 500 | ||
| QFN | Reel | 4000 | ||
| QFN | Reel | 250 |
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