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SN74HC148 - 8-LINE TO 3-LINE PRIORITY ENCODERS

General Description

The SNx4HC148 is an 8-input priority encoder.

Added input enable (EI) and output enable (EO) signals allow for cascading multiple stages without added external circuitry.

PART NUMBER SN74HC148D SN74HC148N SN74HC148NS SN54HC148J SNJ54HC148FK Device Information(1) PACKAGE BODY SIZE (NOM) SOIC (16) 9.90 mm × 3.90 mm PDIP (16) 19.31 mm × 6.35 mm SO (16) 10.20 mm × 5.30 mm CDIP (16) 21.34 mm × 6.92 mm LCCC (20) 8.89 mm × 8.45 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.

Overview

SN54HC148, SN74HC148 SCLS109H – APRIL 2004 – REVISED MARCH 2022 SNx4HC148 8-Line to 3-Line Priority Encoders.

Key Features

  • Wide operating voltage range of 2V to 6V.
  • Outputs can drive up to 10 LSTTL loads.
  • Low power consumption, 80-μA max ICC.
  • Typical tpd = 16ns.
  • ±4-mA output drive at 5V.
  • Low input current of 1μA max.
  • Encode eight data lines to 3-line binary (Octal) 2.