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HD74HC190 Datasheet Synchronous Up/Down Decade/4-bit Binary Counter(Single Clock Line)

Manufacturer: Hitachi Semiconductor (now Renesas)

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General Description

The HD74HC190 and HD74HC191 are synchronous, reverside up/down counters.

The HD74HC190 is a 4-bit decade counter and the HD74HC191 is a 4-bit binary counter.

Synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the steering logic.

Overview

HD74HC190/HD74HC191 Synchronous Up/Down Decade Counter (Single Clock Line) Synchronous Up/Donw 4-bit Binary Counter (Single Clock.

Key Features

  • High Speed Operation: tpd (Clock to Q) = 22 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) Pin Arrangement Inputs Data B 1 QB 2 QB QA G B A CK Ripple Clock 16 VCC 15 Data A Inputs 14 Clock 13 Ripple Clock 12 Max/Min 11 Load 10 Data C 9 Data D (Top view) Inputs Outputs QA 3 Enable G 4 Inputs.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
Renesas Logo HD74HC190 Synchronous Up/Down Decade Counter Renesas

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