Download the T74LS190 datasheet PDF.
This datasheet also includes the T74LS191 variant, as both parts are published together in a single manufacturer document.
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Note: The manufacturer provides a single datasheet file (T74LS191_STMicroelectronics.pdf) that lists specifications for multiple related part numbers.
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Part Number
Description
Manufacturer
SGS-Ates Componenti Electronici
T74LS190
(T74LS190 / T74LS191) Presettable Up/Down Counters
SGS-Ates Componenti Electronici
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(T74LS190 / T74LS191) Presettable Up/Down Counters
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Universal 4-Bit Shift Register
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Dual 4-Input Schmitt Trigger
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Quad 2-Input NAND Buffer
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Octal D-Type Flip-Flop
