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74HC191D from PHI,Philips

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16.113ms

74HC191D

Manufacturer: PHI

Presettable synchronous 4-bit binary up/down counter

Partnumber Manufacturer Quantity Availability
74HC191D PHI 1821 In Stock

Description and Introduction

Presettable synchronous 4-bit binary up/down counter The 74HC191D is a high-speed CMOS 4-bit synchronous up/down counter manufactured by Philips (PHI). It features synchronous counting, asynchronous parallel load, and a carry look-ahead for cascading. The device operates with a supply voltage range of 2.0V to 6.0V and is designed for use in high-speed counting applications. It is available in a SOIC-16 package. Key specifications include a typical propagation delay of 18 ns, a maximum clock frequency of 50 MHz, and low power consumption. The 74HC191D is compatible with TTL inputs and outputs, making it suitable for interfacing with both CMOS and TTL logic levels.

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