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HD74HC149 Datasheet - Renesas

HD74HC149 8-to-8-line Priority Encoder

The HD74HC149 is priority encoder which has 8 input lines (0 - 7) and 8 output lies (Y0 - Y7). It is the logical combination of a HD74HC148 8-3 line priority encoder driving a HD74HC138 3-8 line decoder. Only one request output can be low at a time. The output that is low is dependent on the highest.

HD74HC149 Features

* High Speed Operation: tpd (0 - 7 to Y) = 16 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)

HD74HC149-Renesas.pdf

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Datasheet Details

Part number:

HD74HC149

Manufacturer:

Renesas ↗

File Size:

171.28 KB

Description:

8-to-8-line priority encoder.

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HD74HC149 HD74HC149 8-to-8-line Priority Encoder Renesas

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