| 1640281 | UB8821M | Single Chip microcomputer development version 2kByte external ROM can be connected, power down, possibly equivalent Z8602 | RFT |
| 1640282 | UB8830D | Single-chip microcomputer with bootstrap loader and BASIC interpreter | RFT |
| 1640283 | UB8831D | Single-chip microcomputer with bootstrap loader and BASIC interpreter, power down | RFT |
| 1640284 | UB8840M | Single chip microcomputer development version 4k externally connectable ROM, possibly equivalent Z8612 | RFT |
| 1640285 | UB8841M | Single chip microcomputer development version 4k externally connectable ROM, power down, possibly equivalent Z8612 | RFT |
| 1640286 | UB8860D | Single-chip microcomputer with internal (128x8) bit RAM, ROM-less Version, possibly equivalent Z8682 | RFT |
| 1640287 | UB8861D | Single-chip microcomputer with internal (128x8) bit RAM, ROM-less Version, power down, possibly equivalent Z8682 | RFT |
| 1640288 | UBA1702 | Line interrupter driver and ringer | Philips |
| 1640289 | UBA1702A | Line interrupter driver and ringer | Philips |
| 1640290 | UBA1702AT | Line interrupter driver and ringer | Philips |
| 1640291 | UBA1702AT_C1 | Line interrupter driver and ringer | Philips |
| 1640292 | UBA1702A_C1 | Line interrupter driver and ringer | Philips |
| 1640293 | UBA1702T | Line interrupter driver and ringer | Philips |
| 1640294 | UBA1702T_C1 | Line interrupter driver and ringer | Philips |
| 1640295 | UBA1702_C1 | Line interrupter driver and ringer | Philips |
| 1640296 | UBA1706 | Cordless telephone line interface | Philips |
| 1640297 | UBA1706TS | Cordless telephone line interface | Philips |
| 1640298 | UBA1707 | Cordless telephone, answering machine line interface | Philips |
| 1640299 | UBA1707T | Cordless telephone, answering machine line interface | Philips |
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| 1640300 | UBA1707TS | Cordless telephone, answering machine line interface | Philips |
| 1640301 | UBA1707TS_C1 | Cordless telephone, answering machine line interface | Philips |
| 1640302 | UBA1707TS_C2 | Cordless telephone, answering machine line interface | Philips |
| 1640303 | UBA1707T_C1 | Cordless telephone, answering machine line interface | Philips |
| 1640304 | UBA1707T_C2 | Cordless telephone, answering machine line interface | Philips |
| 1640305 | UBA1710M | Modulator for GaAs power amplifiers | Philips |
| 1640306 | UBA2000T | Electronic TL-lamp starter | Philips |
| 1640307 | UBA2000T_N2 | Electronic TL-lamp starter | Philips |
| 1640308 | UBA2007 | Charge switch | Philips |
| 1640309 | UBA2007TK/N2 | Charge switch | Philips |
| 1640310 | UBA2007TK/N2 | UBA2007; Charge switch | Philips |
| 1640311 | UBA2014 | 600 V driver IC for HF fluorescent lamps | Philips |
| 1640312 | UBA2014 | 600 V driver IC for HF fluorescent lamps | Philips |
| 1640313 | UBA2014P | 600 V driver IC for HF fluorescent lamps | NXP Semiconductors |
| 1640314 | UBA2014P | 600 V driver IC for HF fluorescent lamps | Philips |
| 1640315 | UBA2014P/N1 | UBA2014; 600 V driver IC for HF fluorescent lamps | Philips |
| 1640316 | UBA2014T | 600 V driver IC for HF fluorescent lamps | NXP Semiconductors |
| 1640317 | UBA2014T | 600 V driver IC for HF fluorescent lamps | Philips |
| 1640318 | UBA2014T/N1 | UBA2014; 600 V driver IC for HF fluorescent lamps | Philips |
| 1640319 | UBA2015AP | Dimmable HF-TL controller IC with PFC | NXP Semiconductors |
| 1640320 | UBA2015AT | Dimmable HF-TL controller IC with PFC | NXP Semiconductors |
