74HC193

Presettable synchronous 4-bit binary up/down counter, DIP, 74HC193

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Price:: US $0.10~0.12 / piece [Get Latest Price]

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PartNumber:: 74HC193

Brand:: Texas Instruments - TI | Pack: DIP | D/C: 11+

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Products Upload time: 2012-03-28

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Part Number:74HC193
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Product Summary

The 74HC193 is a Presettable synchronous 4-bit binary up/down counter. Separate up/down clocks, CPU and CPD respectively, simplify operation. The outputs change state synchronously with the LOW-to-HIGH transition of either clock input. If the CPU clock is pulsed while CPD is held HIGH, the 74HC193 will count up. If the CPD clock is pulsed while CPU is held HIGH, the device will count down. Only one clock input can be held HIGH at any time, or erroneous operation will result. The 74HC193 can be cleared at any time by the asynchronous master reset input (MR); it may also be loaded in parallel by activating the asynchronous parallel load input (PL).

Parametrics

74HC193 absolute maximum ratings: (1)VCC supply voltage: -0.5 to +7.0 V; (2)IIK input clamping current: ±20 mA; (3)IOK output clamping current: ±20 mA; (4)IO output current: ±25 mA; (5)ICC supply current: 50 mA; (6)IGND ground current: -50 mA; (7)Tstg storage temperature: -65 to +150 ℃; (8)Ptot total power dissipation: 750 mW.

Features

74HC193 features: (1)Synchronous reversible 4-bit binary counting; (2)Asynchronous parallel load; (3)Asynchronous reset; (4)Expandable without external logic; (5)Output capability: standard; (6)ICC category: MSI.