See datasheet for actual packaging/pinout drawings


Package | PIN:

D | 16


C (0 to 70)

ECO Plan:

Green (RoHS & no Sb/Br)


TRI-STATE RS-422 Dual Differential Line Drivers and Receiver Pair

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1 - 9 $ 1.92
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25 - 99 $ 1.55
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250 - 499 $ 1.26
500 - 749 $ 1.04
750 - 999 $ 0.86
1000 - 9999 $ 0.78

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Texas Instruments DS8922AM/NOPB

The DS8922/22A and DS8923A are Dual Differential Line Driver and Receiver pairs. These devices are designed specifically for applications meeting the ST506, ST412 and ESDI Disk Drive Standards. In addition, the devices meet the requirements of the EIA Standard RS-422.

These devices offer an input sensitivity of 200 mV over a ±7V common mode operating range. Hysteresis is incorporated (typically 70 mV) to improve noise margin for slowly changing input waveforms. An input fail-safe circuit is provided such that if the receiver inputs are open the output assumes the logical one state.

The DS8922A and DS8923A 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 (typ.) with propagation delays of 12 ns.

Both devices feature TRI-STATE outputs. The DS8922/22A have independent control functions common to a driver and receiver pair. The DS8923A has separate driver and receiver control functions.

Power up/down circuitry is featured which will TRI-STATE the outputs and prevent erroneous glitches on the transmission lines during system power up or power down operation.

The DS8922/22A and DS8923A are designed to be compatible with TTL and CMOS.

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