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MM74HC148 Datasheet 8-3 Line Priority Encoder

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: www.DataSheet4U.com MM54HC148 MM74HC148 8-3 Line Priority Encoder February 1988 MM54HC148 MM74HC148 8-3 Line Priority.

General Description

This priority encoder utilizes advanced silicon-gate CMOS technology It has the high noise immunity and low power consumption typical of CMOS circuits as well as the speeds and output drive similar to LB-TTL This priority encoder accepts 8 input request lines 0– 7 and outputs 3 lines A0–A2 The priority encoding ensures that only the highest order data line is encoded Cascading circuitry (enable input EI and enable output EO) has been provided to allow octal expansion without the need for external circuitry All data inputs and outputs are active at the low logic level All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground

Key Features

  • Y Y Typical propagation delay 13 ns Wide supply voltage range 2V.
  • 6V Connection Diagram Dual-In-Line Package TL F 9390.
  • 1 Order Number MM54HC148 or MM74HC148 Truth Table Inputs EI H L L L L L L L L L 0 X H X X X X X X X L 1 X H X X X X X X L H 2 X H X X X X X L H H 3 X H X X X X L H H H 4 X H X X X L H H H H 5 X H X X L H H H H H 6 X H X L H H H H H H 7 X H L H H H H H H H Outputs A2 A1 A0 GS EO H H L L L L H H H H H H L L H H L L H H H H L H L H L H L H H H L L L L L L L.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Fairchild Logo MM74HC148 8-3 Line Priority Encoder Fairchild

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