Description, Synchronous Up/down Counters WITH Down/up MODE Control. Company, Texas Instruments, Inc. Datasheet, Download datasheet. Quote . Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated. datasheet, circuit, data sheet: TI – SYNCHRONOUS UP/ DOWN COUNTERS WITH DOWN/UP MODE CONTROL,alldatasheet, datasheet, .

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All four data inputs are shown by the solid line. These counters are fully programmable; that is, the outputs may be preset to either level by placing a low on the load input and entering the desired data at the data inputs. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from Tl under 741990 patents or other intellectual property of Tl.

Voltage values are with respect to network ground terminal. Data inputs B and C are held at the low logic level. Customers are responsible for their products and applications using Tl components.

Tl products are not authorized for use in safety-critical applications such as life support where a failure of the Tl product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Tl warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl’s standard warranty.


Search the history of over billion web pages on the Internet. A high at the enable input inhibits counting. For simplication, pulse rise times, reference levels, etc. When low, the counter count up and when high, it counts down. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.

Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Tl products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by Tl.

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PDF 74190 Datasheet ( Hoja de datos )

Reproduction of this information with alteration is an unfair and deceptive business practice. All diodes are 1 N or equivalent. Two outputs have been made available to perform the cascading function: Synchronous 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. Count up to eight, nine maximumzero, one, and two. Data in is shown by the solid line for both datasheft.

Data inputs A, B, and C are shown by the solid line. Data input D is shown by the dashed line. Load preset to BCD seven.

Data inputs A and D are shown by the solid line. Count down to one, zero minimumfifteen, fourteen, and thirteen.


All products are sold subject to Tl’s terms and conditions of sale supplied at the time of order acknowledgment. The ripple clock output produces a low-level output pulse equal in width to the low- level portion of the clock input when an overflow or underflow condition exists.

Datasheet(PDF) – TI store

Minimum count enable time is the interval immediately preceeding the rising edge of the clock pulse during which interval the count enable input must be low to 741990 counting. Further, Buyers must fully indemnify Tl and its representatives against any damages arising out of the use of Tl products in such safety-critical applications.

This mode of operation eliminates the output counting spikes normally associated with asyn- chronous ripple clock counters. SN54′, SN74′ Circuits 5. Conditions on other inputs are irrelevant. I qq is measured with all inputs grounded and all outputs open. The input pulses are supplied by generators having the following characteristics: Full text of ” IC Datasheet: All data inputs are low.

Tl does not warrant or represent that any license, either express or implied, is granted under any Tl patent right, copyright, mask work right, or other Tl intellectual property right relating to any combination, machine, or process in which Tl products or services are used.