| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| DS21FF42N | Four x Four 16 Channel T1 Framer | Dallas-Semiconductor | MCMBGA | 300 | -40°C | 85°C | 466 K |
| DS21FF44 | Four x Four 16 Channel E1 Framer | Dallas-Semiconductor | MCMBGA | 300 | 0°C | 70°C | 446 K |
| DS21FF44N | Four x Four 16 Channel E1 Framer | Dallas-Semiconductor | MCMBGA | 300 | -40°C | 85°C | 446 K |
| DS21FT40 | Four x Three 12 Channel E1 Framer | Dallas-Semiconductor | MCMBGA | 300 | 0°C | 70°C | 386 K |
| DS21FT40N | Four x Three 12 Channel E1 Framer | Dallas-Semiconductor | MCMBGA | 300 | -40°C | 85°C | 386 K |
| DS21FT42 | Four x Three 12 Channel T1 Framer | Dallas-Semiconductor | MCMBGA | 300 | 0°C | 70°C | 466 K |
| DS21FT42N | Four x Three 12 Channel T1 Framer | Dallas-Semiconductor | MCMBGA | 300 | -40°C | 85°C | 466 K |
| DS21FT44 | Four x Three 12 Channel E1 Framer | Dallas-Semiconductor | MCMBGA | 300 | 0°C | 70°C | 446 K |
| DS21FT44N | Four x Three 12 Channel E1 Framer | Dallas-Semiconductor | MCMBGA | 300 | -40°C | 85°C | 446 K |
| DS21Q354 | Quad E1 Transceiver (3.3V) | Dallas-Semiconductor | MCMBGA | 256 | 0°C | 70°C | 163 K |
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