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| Part Number | SN74LS90NSR | SN74LS92NSR | SN74LS93NSR | SN74LS390NSR | SN74LS590NSR |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Active | Discontinued at Digi-Key | Active | Active |
| Logic Type | Counter, Decade | Divide-by-12 | Binary Counter | Counter, Decade | Binary Counter |
| Direction | Up | Up | Up | Up | Up |
| Number of Elements | 1 | 1 | 1 | 2 | 1 |
| Number of Bits per Element | 4 | 4 | 4 | 4 | 8 |
| Reset | Asynchronous | Synchronous | Asynchronous | Asynchronous | Asynchronous |
| Timing | - | - | - | - | - |
| Count Rate | 42 MHz | 42 MHz | 42 MHz | 35 MHz | 35 MHz |
| Trigger Type | Negative Edge | Positive Edge | Positive Edge | Negative Edge | Positive Edge |
| Voltage - Supply | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V | 4.75 V ~ 5.25 V |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 14-SOIC (0.209", 5.30mm Width) | 14-SOIC (0.209", 5.30mm Width) | 14-SOIC (0.209", 5.30mm Width) | 16-SOIC (0.209", 5.30mm Width) | 16-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 14-SO | 14-SO | 14-SO | 16-SO | 16-SO |
