Texas Instruments 74FCT series, synchronous 4-bit up/down binary counter, positive-edge trigger, 16-SOIC wide-body (0.295", 7.50mm width), surface-mount, tube.
| Parameter | Value |
|---|---|
| Series | 74FCT |
| Logic type | Binary Counter |
| Trigger type | Positive Edge |
| Mounting | Surface Mount |
| Voltage | 4.75 V ~ 5.25 V |
| Operating temperature | -40°C ~ 85°C |
| Timing | Synchronous |
| Package | Tube |
| Direction | Up, Down |
| Case | 16-SOIC (0.295\", 7.50mm Width) |
| Number of elements | 1 |
| Number of bits per element | 4 |
The Texas Instruments CY74FCT191CTSOC is a synchronous 4-bit binary counter with up/down direction control, positive-edge triggered.
The CY74FCT191CTSOC uses the same 16-SOIC wide-body package (7.50 mm width) and pinout as the CY74FCT191ATSOC — the only difference is the speed/temperature grade suffix. A board designed for the ATSOC variant accepts the CTSOC without layout changes.
The CY74FCT191ATSOC is the closest sibling — same 74FCT series, same synchronous 4-bit up/down binary counter function, same 16-SOIC wide-body package and pinout. The suffix indicates a different speed/temperature grade, but the part drops into the same board footprint.