| Part Number | SN74LS490N | SN74LS390N |
|---|---|---|
| Manufacturer | Rochester Electronics, LLC | Texas Instruments |
| Category | Logic - Counters, Dividers | Logic - Counters, Dividers |
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| Product Status | Active | Active |
| Logic Type | - | Counter, Decade |
| Direction | - | Up |
| Number of Elements | - | 2 |
| Number of Bits per Element | - | 4 |
| Reset | - | Asynchronous |
| Timing | - | - |
| Count Rate | - | 35 MHz |
| Trigger Type | - | Negative Edge |
| Voltage - Supply | - | 4.75 V ~ 5.25 V |
| Operating Temperature | - | 0°C ~ 70°C |
| Mounting Type | - | Through Hole |
| Package / Case | - | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | - | 16-PDIP |