74LS191 Datasheet - Motorola

PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS

74LS191 Features

* ditions VCC = 5.0 V CL = 15 pF Test Conditions VCC = 5.0 V DEFINITIONS OF TERMS SETUP TIME (ts) is defined as the minimu

74LS191 General Description

The LS190 is a synchronous Up / Down BCD Decade Counter and the LS191 is a synchronous Up / Down 4-Bit Binary Counter. The operating modes of the LS190 decade counter and the LS191 binary counter are identical, with the only difference being the count sequences as noted in the state diagrams. Each c.

74LS191 Datasheet (310.02 KB)

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74LS191

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Motorola

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310.02 KB

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Presettable 4-bit binary up/down counters.
PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS The SN54 / 74LS190 is a synchronous UP/ DOWN BCD Decade (8421) Count.

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74LS191 PRESETTABLE 4-BIT BINARY DOWN COUNTERS Motorola

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74LS191 Features

74LS191 General Description

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74LS191 Distributor