深圳市中立信电子科技有限公司

ISL32603EFBZ-T7A

RS-422/RS-485 接口 IC RS-485 Transceiver 1.8V,-40+125 128KBPS

1.8V to 3.3V, Micro-Power, ±15kV ESD, +125 °C, Slew Rate Limited  RS-485/RS-422 Transceivers

The Intersil ISL32603EFBZ-T7A ISL32600E, ISL32601E, ISL32602E, and  ISL32603E are ±15kV IEC61000 ESD protected, micro-power,  wide supply range transceivers for differential communication.  The ISL32600E and ISL32601E operate with VCC ≥ 2.7V and  have maximum supply currents as low as 100μA with both the  transmitter (Tx) and receiver (Rx) enabled. The ISL32602E and  ISL32603E operate with supply voltages as low as 1.8V. These  transceivers have very low bus currents, so they present less  than a “1/8 unit load” to the bus. This allows more than 256  transmitters on the network without violating the RS-485  specification’s 32 unit load maximum.

Features ISL32603EFBZ-T7A

• Single 1.8V, 3V, or 3.3V supply

• Low supply currents

- ISL32601E . . . . . . . . . . . . . . . . . . . . . . . 100μA (Max) at 3V

- ISL32603E . . . . . . . . . . . . . . . . . . . . . .150μA (Max) at 1.8V

• Ultra low shutdown supply current. . . . . . . . . . . . . . . . . . 10nA

• IEC61000 ESD protection on RS-485 I/O pins. . . . . . . ±15kV

- Class 3 ESD levels on all other pins. . . . . . . . . . >8kV HBM

• Symmetrical switching thresholds for less duty cycle

distortion (see Figure 9 on page 12)

• Up to 65mV hysteresis for improved noise immunity

• Data rates from 128kbps to 460kbps

• Specified for +125°C operation

• 1/8 unit load allows up to 256 devices on the bus

• -7V to +12V Common Mode input/output voltage range (VCC ≥ 3V)

• Half and full duplex pinouts; three state Rx and Tx outputs

• 5V tolerant logic inputs

• Tiny MSOP packages consume 50% less board space

Applications ISL32603EFBZ-T7A

• Differential sensor interfaces

• Process control networks

• Security camera networks

• Building environmental control/lighting systems