DS8921N/NOPB Part Information

Details for DS8921N/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
IC Interface Type RS422
No. of Drivers 1Drivers
No. of Receivers 1Receivers
Supply Voltage Min 4.5V
Supply Voltage Max 5.5V
Driver Case Style DIP
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 DS8921
SVHC No SVHC (27-Jun-2018)
RoHS Phthalates Compliant Yes
Base Number 8921
Operating Temperature Range 0°C to +70°C
Output Current Max 50mA
Propagation Delay 12ns
Supply Current 35mA
Supply Voltage Range 4.5V to 5.5V
RoHS Compliant

Alternative Part Descriptions

  • Transceiver [Texas Instruments] DS8921N/NOPB Transceiver | Distrelec

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