| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | MM58167 |  173Kb/10P | Microprocessor Real Time Clock |
| MM58167B |  173Kb/10P | Microprocessor Real Time Clock |
| MM58167BN |  173Kb/10P | Microprocessor Real Time Clock |
| MM58167BV |  173Kb/10P | Microprocessor Real Time Clock |
 National Semiconductor ... | MM58167B |  173Kb/10P | Microprocessor Real Time Clock |
| MM58167BN |  173Kb/10P | Microprocessor Real Time Clock |
| MM58167BV |  173Kb/10P | Microprocessor Real Time Clock |
| MM58174 |  130Kb/8P | Microprocessor-Compatible Real-Time Clock |
| MM58174A |  130Kb/8P | Microprocessor-Compatible Real-Time Clock |
| MM58174AN |  130Kb/8P | Microprocessor-Compatible Real-Time Clock |
| MM58201 |  151Kb/8P | Multiplexed LCD Driver |
| MM58241 |  150Kb/8P | MM58241 High Voltage Display Driver |
| MM58241N |  150Kb/8P | MM58241 High Voltage Display Driver |
| MM58241V |  150Kb/8P | MM58241 High Voltage Display Driver |
| MM58242 |  137Kb/6P | High Voltage Display Driver |
| MM58242V |  137Kb/6P | High Voltage Display Driver |
| MM58248 |  156Kb/6P | High Voltage Display Driver |
| MM58248N |  156Kb/6P | High Voltage Display Driver |
| MM58248V |  156Kb/6P | High Voltage Display Driver |
| MM58274C |  228Kb/16P | Microprocessor Compatible Real Time Clock |