Part Number
|
HD74HC668 |
Manufacturer
|
Renesas |
Description
|
Synchronous UP/Down Decade Counter |
Published
|
Dec 4, 2017 |
Detailed Description
|
HD74HC668, HD74HC669
Synchronous UP/Down Decade Counter Synchronous Up/Down 4-bit binary Counter
REJ03D0638-0200 (Previo...
|
Datasheet
|
HD74HC668
|
Overview
HD74HC668, HD74HC669
Synchronous UP/Down Decade Counter Synchronous Up/Down 4-bit binary Counter
REJ03D0638-0200 (Previous ADE-205-520)
Rev.2.00 Mar 30, 2006
Description
This synchronous presettable decade counter features an internal carry look-ahead 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 inputs and internal gating. This mode of operation helps eliminate the output counting spikes that are normally associated with asynchronous (ripple-clock) counters.
A buffered clock input triggers the four master-slave fl...
Similar Datasheet