| 1640241 | UAF42AU | Universal Active Filter | Texas Instruments |
| 1640242 | UAF42AU-1 | Universal Active Filter | Texas Instruments |
| 1640243 | UAF42AUE4 | Universal Active Filter 16-SOIC -25 to 85 | Texas Instruments |
| 1640244 | UATL30MC | SIMPLIFIED CIRCUIT SCHEMATIC | etc |
| 1640245 | UB-151 | Fast Recovery Diodes | Sanken |
| 1640246 | UB-152 | Fast Recovery Diodes | Sanken |
| 1640247 | UB-154 | Fast Recovery Diodes | Sanken |
| 1640248 | UB-15X | Fast Recovery Diodes | Sanken |
| 1640249 | UB084S01 | COLOR TFT-LCD MODULE SPECIFICATION | etc |
| 1640250 | UB2 | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640251 | UB2-3NJ | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640252 | UB2-3NJ-L | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640253 | UB2-3NJ-R | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640254 | UB2-3NU | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640255 | UB2-3NU-L | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640256 | UB2-3NU-R | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640257 | UB2-3NUN | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640258 | UB2-3NUN-L | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640259 | UB2-3NUN-R | Super-compact size, Slim-package, Surface mounting type | NEC |
|
| 1640260 | UB2-3SNJ | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640261 | UB2-3SNJ-L | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640262 | UB2-3SNJ-R | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640263 | UB2-3SNU | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640264 | UB2-3SNU-L | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640265 | UB2-3SNU-R | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640266 | UB2-3SNUN | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640267 | UB2-3SNUN-L | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640268 | UB2-3SNUN-R | Super-compact size, Slim-package, Surface mounting type | NEC |
| 1640269 | UB8001C | 16 bit microprocessor, possibly equivalent Z8001-CPU | RFT |
| 1640270 | UB8002D | 16 bit microprocessor, possibly equivalent Z8002-CPU | RFT |
| 1640271 | UB8010D | MMU for 16 bit microprocessor, possibly equivalent Z8010-MMU | RFT |
| 1640272 | UB855D | Programmable parallel input/output circuit, maximum clock frequency 2.5 MHz, two 8 bit bidirectional channels, possibly equivalent Z80-PIO | RFT |
| 1640273 | UB8563D | Programmable serial input/output circuit, only for asynchronous operation, maximum clock frequency 2.5 MHz, possibly equivalent Z80A-DART | RFT |
| 1640274 | UB856D | Programmable serial input/output circuit, maximum clock frequency 2.5 MHz, possibly equivalent Z80-SIO | RFT |
| 1640275 | UB857D | Counter time circuit, 4 independent channels, maximum clock frequency 2.5 MHz, possibly equivalent Z80CTC | RFT |
| 1640276 | UB858D | Programmable peripheral circuit (DMA) for direct Memory access, possibly equivalent Z80-DMA/PS | RFT |
| 1640277 | UB880D | 8 bit microprocessor (CPU), 158 basic instructions, maximul clock frequency 2.5 MHz, possibly equivalent Z80-CPU | RFT |
| 1640278 | UB8810D | Single-chip microcomputer, 2 kByte mask-programmed ROM, possibly equivalent Z8601 | RFT |
| 1640279 | UB8811D | Single-chip microcomputer, 2 kByte mask-programmed ROM, power down, possibly equivalent Z8601 | RFT |
| 1640280 | UB8820M | Single-chip microcomputer development version 2kByte external ROM connectable, possibly equivalent Z8602 | RFT |
