Description
DM74LS90/DM74LS93 Decade and Binary Counters March 1998 DM74LS90/DM74LS93 Decade and Binary Counters General .
Features
* n Typical power dissipation 45 mW n Count frequency 42 MHz Connection Diagrams (Dual-In-Line Packages) DS006381-1 Order Number DM74LS90M or DM74LS90N See Package Number M14A or N14A DS006381-2 Order Number DM74LS93M or DM74LS93N See Package Number M14A or N14A © 1998 Fairchild Semiconductor CorpApplications
* To use their maximum count length (decade or four bit binary), the B input is connected to the QA output. The input count pulses are applied to input A and the outputs are as described in the appropriate truth table. A symmetrical divide-by-ten count can be obtained from the ’LS90 counters by connDM74LS93N Distributors
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