The DM74LS191M is a 4-bit binary counter with a commercial temperature range of 0 to 70 degrees Celsius. It operates at a supply voltage of 4.75 to 5.25 volts and has a maximum current of 35 milliamps. The counter has a propagation delay of 62 nanoseconds and a maximum frequency of 20 MHz. It is available in a 16-pin SOP package with a load capacitance of 50 picofarads.
Rochester Electronics DM74LS191M technical specifications.
| Max Operating Temperature | 70 |
| Number of Terminals | 16 |
| Min Operating Temperature | 0 |
| Terminal Position | DUAL |
| JEDEC Package Code | R-PDSO-G16 |
| Width | 3.9 |
| Length | 9.9 |
| Number of Functions | 1 |
| Temperature Grade | COMMERCIAL |
| Supply Voltage-Nom (Vsup) | 5 |
| Supply Voltage-Max (Vsup) | 5.25 |
| Supply Voltage-Min (Vsup) | 4.75 |
| Logic IC Type | BINARY COUNTER |
| Family | LS |
| Propagation Delay (tpd) | 62 |
| Number of Bits | 4 |
| Max I(ol) | 0.004 |
| Load Capacitance | 50 |
| Power Supply Current-Max (ICC) | 35 |
| Count Direction | BIDIRECTIONAL |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 20 |
| Max Frequency@Nom-Sup | 20 |
| REACH | unknown |
| Military Spec | False |
No datasheet is available for this part.
