| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| YTD421B | 5.0V; IDR: ISDN driver/receiver LSI for the ISDN BRI S/T interface | distributor | SSOP | 20 | 0°C | 70°C | 221 K |
| YTD421B-E | ISDN driver/receiver | distributor | SSOP | 20 | 0°C | 70°C | 370 K |
| YTD423 | ISDN BRI controller with B-ch HDLC controller | distributor | SQFP | 100 | -20°C | 70°C | 263 K |
| YTD423 | 0.3-7.0V; IHDLC2: ISDN BRI controller with B-ch HDLC controller | distributor | QFP | 100 | 0°C | 70°C | 210 K |
| YTD426B | 5.0V; ITCM: ISDN U interface (TCM mode) | distributor | SQFP | 144 | 0°C | 70°C | 313 K |
| YTD427 | 5.0V; IAFE: ISDN DSU analog front end | distributor | QFP | 64 | 0°C | 70°C | 172 K |
| YTD428 | 5V DSU LSI for the ISDN terminal eguipment | distributor | SQFP | 100 | -20°C | 70°C | 177 K |
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