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SN74F169D - 

Binary Synchronous Up / Down Counter, 90 MHz, 4.5 V to 5.5 V, SOIC-16

SN74F169D - Binary Synchronous Up / Down Counter, 90 MHz, 4.5 V to 5.5 V, SOIC-16

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Manufacturer Part No:
SN74F169D
Order Code:
1741264

Product Overview

The SN74F169D is a 4-bit synchronous Up/Down Binary Counter features an internal carry look-ahead circuitry for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable (CNP\, ENT\) inputs and internal gating. This mode of operation eliminates the output counting spikes that are normally associated with asynchronous (ripple-clock) counters. A buffered clock input triggers the four flip-flops on the rising (positive-going) edge of the clock waveform. This counter is fully programmable, that is, it may be preset to any number between 0 and its maximum count. The load-input circuitry allows loading with the carry-enable output of cascaded counters. As loading is synchronous, setting up a low level at the LOAD\ input disables the counter and causes the outputs to agree with the data inputs after the next clock pulse.
  • Fully synchronous operation for counting and programming
  • Internal look-ahead circuitry for fast counting
  • Carry output for n-bit cascading
  • Fully independent clock circuit

Applications

Industrial

Product Information

:
74F169
:
Binary, Up / Down
:
90MHz
:
15
:
SOIC
:
16Pins
:
4.5V
:
5.5V
:
74F
:
74169
:
0°C
:
70°C
:
-
:
MSL 1 - Unlimited
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