The SN74LS90D is a commercial temperature decade counter from Rochester Electronics. It features a 14-pin SOIC package and operates over a temperature range of 0 to 70 degrees Celsius. The device has a nominal supply voltage of 5V and a maximum supply voltage of 5.25V. It is a dual-function logic IC with a propagation delay of 50ns and a maximum frequency of 32MHz. The counter counts up and has a negative edge trigger.
Rochester Electronics SN74LS90D technical specifications.
| Max Operating Temperature | 70 |
| Number of Terminals | 14 |
| Min Operating Temperature | 0 |
| Terminal Position | DUAL |
| JEDEC Package Code | R-PDSO-G14 |
| Width | 3.9 |
| Length | 8.65 |
| Pin Count | 14 |
| Number of Functions | 2 |
| Temperature Grade | COMMERCIAL |
| Supply Voltage-Nom (Vsup) | 5 |
| Supply Voltage-Max (Vsup) | 5.25 |
| Supply Voltage-Min (Vsup) | 4.75 |
| Logic IC Type | DECADE COUNTER |
| Family | LS |
| Propagation Delay (tpd) | 50 |
| Number of Bits | 3 |
| Count Direction | UP |
| Trigger Type | NEGATIVE EDGE |
| fmax-Min | 32 |
| Lead Free | No |
| HTS Code | 8542.39.00.01 |
| REACH | unknown |
| Military Spec | False |
No datasheet is available for this part.
