| Part Number | SN74LS90D | SN74LS390D |
|---|---|---|
| Manufacturer | onsemi | Texas Instruments |
| Category | Logic - Counters, Dividers | Logic - Counters, Dividers |
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| Product Status | Obsolete | Active |
| Logic Type | Counter, Decade | Counter, Decade |
| Direction | Up | Up |
| Number of Elements | 1 | 2 |
| Number of Bits per Element | 4 | 4 |
| Reset | Asynchronous | Asynchronous |
| Timing | - | - |
| Count Rate | 42 MHz | 35 MHz |
| Trigger Type | Negative Edge | Negative Edge |
| Voltage - Supply | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 14-SOIC | 16-SOIC |