HomedatasheetSN74HC191NSR

SN74HC191NSR Datasheet

Counter ICs
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Description

The SN74HC191NSR devices are 4-bit synchronous,reversible, up/down binary counters.Synchronous counting operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple-clock) counters. SN74HC191NSR Features • Wide Operating Voltage Range of 2 V to 6 V• Outputs Can Drive Up To 10 LSTTL Loads• Low Power Consumption, 80-μA Max ICC• Typical tpd = 13 ns• ±4-mA Output Drive at 5 V• Low Input Current of 1 μA Max• Single Down/Up Count-Control Line• Look-Ahead Circuitry Enhances Speed of• Cascaded Counters• Fully Synchronous in Count Modes
Features

Parameters

[{"Name":"Counter Type ","Value":"Binary Counters "},{"Name":"Logic Family ","Value":"CMOS"},{"Name":"Number of Bits ","Value":"4"},{"Name":"Counting Method","Value":"Synchronous"},{"Name":"Counting Sequence ","Value":"Up/Down"},{"Name":"Operating Supply Voltage ","Value":"2 V to 6 V"},{"Name":"Operating Temperature Range ","Value":"- 40 C to + 85 C "},{"Name":"Package / Case ","Value":"SOP-16"},{"Name":"Packaging","Value":"Reel "}]

Manufacturer information

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