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| Parameter | SN74LS191D | SN74LS191DE4 | SN74LS191DG4 | SN74LS191DR | SN74LS191DRE4 | SN74LS191DRG4 | SN74LS191N | SN74LS191NE4 | SN74LS191NSR | SN74LS191NSRE4 | SN74LS191NSRG4 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Type of mounting a component on a board/circuit | Mount | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount | Through-hole | Through-hole | Surface mount | Surface mount | Surface mount |
IC package | Package | 16-SOIC (3.9мм ширина) | 16-SOIC (3.9мм ширина) | 16-SOIC | 16-SOIC (3.9мм ширина) | 16-SOIC (3.9мм ширина) | 16-SOIC | 16-DIP (300 mil) | 16-DIP (300 mil) | 16-SOP | 16-SOP | 16-SOP |
IC series | Series | 74LS | ||||||||||
Manufacturer | Manufacturer | Texas Instruments | ||||||||||
Working temperature | twork | 0 ~ 70 | ||||||||||
Supply voltage | Vsup | 4.75 V ~ 5.25 V | ||||||||||
Number of elements of the same type in single chip | Elements | 1 | ||||||||||
Frequency | f | <25 MHz | ||||||||||
Bit depth | Bit depth | 4 | ||||||||||
Counter type | Type | Binary Counter | ||||||||||
Count direction | Direction | Up, Down | ||||||||||
Clock type | Clock | Synchronous | ||||||||||
Trigger input polarity | Trig.polarity | Positive Edge | ||||||||||