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Quantity | Price (inc GST) |
---|---|
1+ | CNY17.490 (CNY19.7637) |
10+ | CNY17.460 (CNY19.7298) |
25+ | CNY17.430 (CNY19.6959) |
50+ | CNY17.400 (CNY19.662) |
100+ | CNY17.370 (CNY19.6281) |
250+ | CNY17.330 (CNY19.5829) |
500+ | CNY17.300 (CNY19.549) |
1000+ | CNY17.260 (CNY19.5038) |
Product Information
Product Overview
The SN74LS390N is a 4bit dual decade counter contains eight flip-flops and additional gating to implement two individual four-bit counters. It incorporates dual divide-by-two and divide-by-five counter, which can be used to implement cycle lengths equal to any whole and/or cumulative multiples of 2 and/or 5 up to divide-by-100. When connected as a bi-quinary counter, the separate divide-by-two circuit can be used to provide symmetry (a square wave) at the final output stage. It comprises two independent four-bit binary counters each having a clear and a clock input. N-bit binary counters can be implemented with each package providing the capability of divide-by-256. It has parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system-timing signals.
- Direct clear for each 4bit counter
- Buffered outputs reduce possibility of collector commutation
Technical Specifications
74LS390
35MHz
DIP
16Pins
5.25V
74390
70°C
-
Decade
10
DIP
4.75V
74LS
0°C
-
No SVHC (27-Jun-2018)
Legislation and Environmental
Country in which last significant manufacturing process was carried outCountry of Origin:Malaysia
Country in which last significant manufacturing process was carried out
RoHS
RoHS
Product Compliance Certificate