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HD74HC148 - 8-to-3-line Octal Priority Encoder

Description

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).
  • Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation HD74HC148P DILP-16 pin PRDP0016AE-B (DP-16FV) P HD74HC148FPEL SOP-16 pin (JEITA) PRSP0.

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Datasheet Details

Part number HD74HC148
Manufacturer Renesas
File Size 166.54 KB
Description 8-to-3-line Octal Priority Encoder
Datasheet download datasheet HD74HC148 Datasheet
Additional preview pages of the HD74HC148 datasheet.

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Full PDF Text Transcription

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HD74HC148 8-to-3-line Octal Priority Encoder REJ03D0573-0200 (Previous ADE-205-447) Rev.2.00 Oct 11, 2005 Description 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.
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