54F191LMQB. Counter Single 4-Bit Async Binary UP/Down 20-Pin LCC Rail
From NATIONAL SEMICONDUCTOR
| Logic Family | F |
| Logical Function | Counter |
| Mounting | Surface Mount |
| Number of Elements | 1 |
| Number of Bits | 4 |
| Operating Supply Voltage (Max) | 5.5(V) |
| Operating Supply Voltage (Min) | 4.5(V) |
| Operating Supply Voltage (Typ) | 5(V) |
| Operating Temp Range | -55C to 125C |
| Operating Temperature Classification | Military |
| Package Type | LCC |
| Packaging | Rail/Tube |
| Pin Count | 20 |
| Propagation Delay Time | 22(ns) |
| Rad Hardened | No |
| Technology | Bipolar |
| Type | Binary |
