Texas Instruments · 74LS Series
Texas Instruments 74LS series SN74LS161ANSR, synchronous 4-bit binary counter, positive-edge triggered, asynchronous reset, 25 MHz count rate, 4.75 V to 5.25 V supply, 0°C to 70°C, 16-SOIC surface-mount package.
MOQ 1 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T
| Parameter / Attribute | Specification / Value |
|---|---|
| Series | 74LS |
| Logic type | Binary Counter |
| Trigger type | Positive Edge |
| Mounting | Surface Mount |
| Supply voltage | 4.75 V ~ 5.25 V |
| Operating temperature | 0°C ~ 70°C |
| Reset | Asynchronous |
| Timing | Synchronous |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Direction | Up |
| Count rate | 25 MHz |
| Case | 16-SOIC (0.209\", 5.30mm Width) |
| Number of elements | 1 |
| Number of bits per element | 4 |
The Texas Instruments SN74LS161ANSR is a 74LS-series synchronous 4-bit binary counter that increments on the positive edge of the clock. It includes an asynchronous reset (active low) that clears the outputs independently of the clock. The 25 MHz maximum count rate sets the timing budget for the system bus or sensor edge rate.
The 16-SO supplier device package matches standard SOIC-16 land patterns.
