They are edge-triggered, synchronously presettable, and cascadable MSI building blocks for counting, memory addressing, frequency division and other applications. These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting designs. The Synchronous Counter is 4-bit binary counters. The carry output is decoded by means of a NOR gate, thus preventing spikes during the normal counting mode of operation. 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 count-enable inputs and internal gating. This mode of operation eliminates the output counting spikes which are normally associated with asynchronous ripple clock counters.
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Our standard product range covers a wide temperature range with long term availability and no mask changes guaranteed. Matching of die size, wire-bond configuration and like-for-like electrical performance delivers a qualified long term die solution. Suitable for low-to-medium volume or hi-rel applications. We combine technical requirement with project economics for a viable die solution. The 74LS programmable 4—bit asynchronous binary counter features parallel load, asynchronous reset, ripple-carry output for cascading and count-enable controls.
Product Families: Used for this device are tabulated below. Specification: V CC Min : 4. Other Detail: Important information for this device is tabulated below. Amber: Available on factory order with MOQ.
Red: High factory MOQ may apply, please ask for details. Traffic light setting for High Reliability indicates the following: Green: This bare die is specified and tested for use in high reliability applications.
Red: This bare die is not specified or specifically designed for use in high reliability applications. Traffic light setting for Space Grade indicates the following: Green: This bare die is qualified for space applications or has space level qualification data, please ask for details.
Amber: This bare die can be specified for space applications with additional testing and qualification, please ask for details. Red: Suitability of this bare die for space applications is unknown and requires further qualification, please ask for details.
Email Engineering. Hi-Rel Die Products Our standard product range covers a wide temperature range with long term availability and no mask changes guaranteed.
Obsolete Die Recreation Matching of die size, wire-bond configuration and like-for-like electrical performance delivers a qualified long term die solution.
74161 Datasheet PDF
74161 COUNTER. Datasheet pdf. Equivalent