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| 型号： | SP3497EEN-L |
| 厂商： | Exar Corporation |
| 文件页数： | 6/17页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485/RS422 ESD 14NSOIC |
| 特色产品： | SP3497EEN-L 3.3V High-Speed RS-485/RS-422 Transceiver |
| 标准包装： | 98 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422/RS485 |
| 电源电压： | 3.3V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOIC（窄型） |
| 包装： | 管件 |
| 其它名称： | 1016-1153-5 |
SP3495E-3497E
14
HIGH SPEED +3.3V RS-485/RS-422 TRANSCEIVERS WITH +/-15KV ESD PROTECTION AND ADVANCED FAILSAFE
REV. 1.0.0
1.0
PRODUCT DESCRIPTION
The SP349xE high speed transceivers contain one driver and one receiver. The SP3495 is a half-duplex
design while the SP3496E and SP3497E are full-duplex designs. The control pins RE and DE feature a
hotswap capability allowing live insertion without spurious data transfer. Drivers are output short-circuit current
limited. Thermal-shutdown circuitry protects drivers against excessive power dissipation. When activited, the
thermal-shutdown circuitry forces the driver outptus into a high-impedance state.
Advanced Failsafe
The Receivers incorporate fail-safe circuitry, which guarantees a logic-high receiver output when the receiver
inputs are open or shorted, or when they are connected to a terminated transmission line with all drivers
disabled. In a terminated bus with all transmitters disabled the receivers differential input voltage is pulled to 0V
by the termination. The SP349xE interprets 0V differential as a logic high with a minimum 40mV noise margin.
HOT-SWAP CAPABILITY
When Vcc is first applied the SP349xE holds the driver enable and receiver enable inactive for approximately
10 microseconds. During power ramp-up other system IC’s may drive unpredictable values. Hot-swap
capability prevents the SP349xE from driving any output signal until power has stabilized. After the initial
power-up sequence, the hot-swap circuit becomes transparent and driver enable and receiver enable resume
their normal functions and timings
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP3497EEN-L/TR | 功能描述:RS-422/RS-485 接口 IC Full Duplex RS-422/ RS-485 Transceiver RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| SP34AL | 制造商:Hubbell Wiring Device-Kellems 功能描述:ALMOND PAINTED STEEL 3 GANG BLANK |
| SP34BAL | 制造商:Hubbell Wiring Device-Kellems 功能描述:PLATE, 3-G BLANK, BOX MT, STEEL, AL |
| SP3-50 | 功能描述:线性位移传感器 Strg Pot 50" (1.25m) 4.20mA/0-10V O IP54 RoHS:否 制造商:Honeywell 行程:230.8 mm 工作力:0.45 kg 线性:+/- 0.1 % 电压额定值:30 VDC |
| SP35001 | 制造商:SIPAT 制造商全称:SIPAT 功能描述:350MHz Low-loss SAW Filter 45MHz Bandwidth |
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