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NTE74LS90 Integrated Circuit TTL− Decade Counter
14−Lead DIP
Description: The NTE74LS90 is a monolithic counter in a 14−Lead DIP type package that contains four master− slave flip−flops and additional gating to provide a divide−by−two counter and a three−stage binary counter for which the count cycle length is divide−by−five.
The counter has a gated zero reset and also has gated set−to−nine inputs for use in BDC nine’s complement applications.
To use the 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 Function Table.
NTE74LS90 Datasheet
