Texas Instruments

Wide Operating Voltage Range of 2 V to 6 V High-Current Inverting Outputs Drive up to 15 LSTTL Loads Low Power Consumption, 80-µA Max ICC ’HC257 ...Typical tpd = 9 ns ’HC258 ...Typical tpd = 12 ns ±6-mA Output Drive at 5 V Low Input Current of 1 µA Max Provides Bus Interface from Multiple Sources in High-Performance Systems