| MC100E136 | ON Semiconductor | 5V ECL 6-Bit Universal Up/Down Counter |
| MC100E136FN | ON Semiconductor | 5V ECL 6-Bit Universal Up/Down Counter |
| MC100E136FNR2 | ON Semiconductor | 5V ECL 6-Bit Universal Up/Down Counter |
| MC10E136 | ON Semiconductor | 5V ECL 6-Bit Universal Up/Down Counter |
| MC10E136FN | ON Semiconductor | 5V ECL 6-Bit Universal Up/Down Counter |
| MC10E136FNR2 | ON Semiconductor | 5V ECL 6-Bit Universal Up/Down Counter |