ZHCSS47O October 1995 – July 2024 SN54AHCT244 , SN74AHCT244
PRODMIX
请参考 PDF 数据表获取器件具体的封装图。
| THERMAL METRIC(1) | SN74AHCT244 | UNIT | ||||||
|---|---|---|---|---|---|---|---|---|
| DB | DGV | DW | N | NS | PW | |||
| 20 PINS | 20 PINS | 20 PINS | 20 PINS | 20 PINS | 20 PINS | |||
| RθJA | Junction-to-ambient thermal resistance | 87.2 | 119.2 | 81.1 | 54.9 | 77.6 | 116.8 | °C/W |
| RθJC(top) | Junction-to-case (top) thermal resistance | 49.1 | 34.5 | 48.9 | 41.7 | 42.7 | 58.5 | |
| RθJB | Junction-to-board thermal resistance | 51.8 | 60.7 | 53.8 | 35.8 | 45.7 | 78.7 | |
| ψJT | Junction-to-top characterization parameter | 11.6 | 1.2 | 19.5 | 27.9 | 10.2 | 12.6 | |
| ψJB | Junction-to-board characterization parameter | 51.2 | 60.0 | 53.1 | 35.7 | 45.2 | 77.9 | |
| RθJC(bot) | Junction-to-case (bottom) thermal resistance | N/A | N/A | N/A | N/A | N/A | N/A | |