DS8921AM/NOPB Part Information

Details for DS8921AM/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs

Part Description

The DS8921, DS8921A, and DS8921AT devices are differential line driver and receiver pairs designed specifically for applications meeting the ST506, ST412, and ESDI disk drive standards. In addition, these devices meet the requirements of the EIA standard RS-422. The DS8921x receivers offer an input sensitivity of 200 mV over a ±7 V common mode operating range. Hysteresis is incorporated (typically 70 mV) to improve noise margin for slowly changing input waveforms. The DS8921x drivers are designed to provide unipolar differential drive to twisted-pair or parallel wire transmission lines. Complementary outputs are logically ANDed and provide an output skew of 0.5 ns (typical) with propagation delays of 12 ns. The DS8921x devices are designed to be compatible with TTL and CMOS.

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Part Features

  • 12-ns Typical Propagation Delay
  • Complementary Driver Outputs
  • DS8921AT Industrial Temperature Operation:
  • High Differential or Common-Mode Input Voltage Ranges of u00b17 V
  • Meets the Requirements of EIA Standard RS-422
  • Output Skew: 0.5 ns Typical
  • Receiver Input Hysteresis: 70 mV Typical
  • u00b10.2 V Receiver Sensitivity Over the Input Voltage Range

Part Specifications

Device Type Differential Line Driver / Receiver
IC Interface Type RS422
No. of Drivers 2Drivers
No. of Receivers 2Receivers
Supply Voltage Min 4.5V
Supply Voltage Max 5.5V
Driver Case Style SOIC
No. of Pins 8Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
IC Generic Number DS8921A
SVHC No SVHC (27-Jun-2018)
RoHS Phthalates Compliant Yes
Base Number 8921
Line Bus Drive Receive Transceiver Type Differential
Logic Case Style SOIC
Operating Temperature Range 0°C to +70°C
Supply Current 35mA
Supply Voltage Range 4.5V to 5.5V
Termination Type Surface Mount Device
RoHS Compliant

Alternative Part Descriptions

  • Diff Line Driver + Receiver DS8921AM | RS Components
  • IC, TRANSCEIVER; Device Type:Differential Line Driver / Receiver; IC Interface Type:RS422; No. of Drivers:2Drivers; No. of Receivers:2Receivers; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Driver Case Style:SOIC; No. of RoHS Compliant: Yes | Newark Electronics
  • IC: interface; transceiver; RS422,RS485,full duplex; SO8 | Transfer Multisort Elektronik
  • Differential Line Drivers and Receiver Pair | Texas Instruments

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