| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| C921 | Channel photomultiplexer, 1/3 inche, window material MgF2, dark current 10 pA. | distributor | - | 4 | 0°C | 50°C | 859 K |
| C921P | Channel photomultiplexer, 1/3 inche, special type for photon counting, dark counts 1 cps. | distributor | - | 4 | 0°C | 50°C | 859 K |
| TMP47C921AG | ROM 4096 x 8-bit, RAM 256 x 4-bit, CMOS 4-bit microcontroller | Toshiba | QFC | 64 | -30°C | 60°C | 490 K |
| TMP47C921AG | ROM 4096 x 8-bit, RAM 256 x 4-bit, CMOS 4-bit microcontroller | Toshiba | QFC | 64 | -30°C | 60°C | 490 K |
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