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74HC148

Part Number	74HC148
Manufacturer	Hitachi
Description	8-to-3-line Octal Priority Encoder
Published	May 28, 2005
Detailed Description	HD74HC148 8-to-3-line Octal Priority Encoder Description The HD74HC148 encodes eight data lines to three-line (4-2-1) b...
Datasheet	74HC148 PDF File

Overview

HD74HC148 8-to-3-line Octal Priority Encoder Description The HD74HC148 encodes eight data lines to three-line (4-2-1) binary (octal).
Cascading circuitry (enable input EI and enable output EO) is provided to allow octal expansion without the need for external circuitry.
The data inputs and outputs are active at the low logic level.
Features • • • • • High Speed Operation: tpd (0 - 7 to A0 - A2) = 15 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Inputs EI H L L L L L L L L L H : L : X : 0 X H X X X X X X X L 1 X H X X X X X ...

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