54LS190 - Synchronous 4-Bit Up/Down Counters

National Semiconductor

54LS190 Datasheet Preview — Preview of 54LS190 PDF

Datasheet Details

Part number	54LS190
Manufacturer	National Semiconductor ↗
File Size	180.58 KB
Description	Synchronous 4-Bit Up/Down Counters
Datasheet	54LS190-NationalSemiconductor.pdf

54LS190 Product details

Description

These circuits are synchronous reversible up down counters The LS191 is a 4-bit binary counter and the LS190 is a BCD counter Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change simultaneously when so instructed by the steering logic This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters The outputs of the four master-slave flip-flops are triggered on a low-to-high level t

Features

Y Y Y Y Y Y Y Y Y Y Counts 8-4-2-1 BCD or binary Single down up count control line Count enable control input Ripple clock output for cascading Asynchronously presettable with load control Parallel outputs Cascadable for n-bit.

📁 54LS190 Similar Datasheet

54LS191 - PRESETTABLE BCD/DECADE UP/DOWN COUNTERS (Motorola)
54LS192 - PRESETTABLE BCD/DECADE UP/DOWN COUNTER (Motorola)
54LS193 - PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER (Motorola)
54LS109A - Dual J-K Positive-Edge-Triggered Flip-Flops (Texas Instruments)
54LS122 - RETRIGGERABLE MONOSTABLE MULTIVIBRATORS (Texas Instruments)
54LS123 - RETRIGGERABLE MONOSTABLE MULTIVIBRATORS (Motorola)
54LS125A - QUADRUPLE BUS BUFFERS (Texas Instruments)
54LS126A - QUADRUPLE BUS BUFFERS (Texas Instruments)

Other Datasheets by National Semiconductor

54LS194A - 4-Bit Bidirectional Universal Shift Register
54LS10 - Triple 3-Input NAND Gates
54LS109 - Dual Positive-Edge-Triggered J-K Flip-Flops
54LS11 - Triple 3-Input AND Gates
54LS114 - Dual JK Flip-Flop
54LS13 - DUAL 4-INPUT SCHMITT TRIGGER

Published: Mar 25, 2014 |