| Part Number | SN74LS393DR | SN74LS193DR | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | Logic - Counters, Dividers | Logic - Counters, Dividers | 
|   |   | |
| Product Status | Active | Active | 
| Logic Type | Binary Counter | Binary Counter | 
| Direction | Up | Up, Down | 
| Number of Elements | 2 | 1 | 
| Number of Bits per Element | 4 | 4 | 
| Reset | Asynchronous | Asynchronous | 
| Timing | - | Synchronous | 
| Count Rate | 35 MHz | 32 MHz | 
| Trigger Type | Negative Edge | Positive 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 |