74LS161A Datasheet - Fairchild Semiconductor

74LS161A, Synchronous 4-Bit Binary Counters

DM74LS161A * DM74LS163A Synchronous 4-Bit Binary Counters August 1986 Revised April 2000 DM74LS161A * DM74LS163A Synchronous 4-Bit B.
These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed counting designs.

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Datasheet Details

Part number:

74LS161A

Manufacturer:

Fairchild Semiconductor

File Size:

101.99 KB

Description:

Synchronous 4-Bit Binary Counters

Features

* s Synchronously programmable s Internal look-ahead for fast counting s Carry output for n-bit cascading s Synchronous counting s Load control line s Diode-clamped inputs s Typical propagation time, clock to Q output 14 ns s Typical clock frequency 32 MHz s Typical power dissipation 93 mW Ordering C

Applications

* without additional gating. Instrumental in accomplishing this function are two count-enable inputs and a ripple carry output. Both count-enable inputs (P and T) must be HIGH to count, and input T is fed forward to enable the ripple carry output. The ripple carry output thus enabled will produce a hi

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74LS161A Synchronous 4-Bit Binary Counters Fairchild Semiconductor

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