AN8612NSR

AN8612NSR SCSI Active Terminator IC s Overview The AN8612NSR is a terminator IC complying with the standard interface standards [SCSI-I/II] for personal computer, work station and various information equipment. Fixed resistor and regulator which are separately provided in conventional ICs are incorporated in single chip for the AN8612NSR. The stand-by function is also built in the AN8612NSR. Moreover, this IC can easily satisfy the maximum terminal capacitance of 25 pF of the SCSI-II standard, because of its small output terminal capacitance. It can support the 10 M byte/s of SCSI-II and 20 M bytes/s of Fast-20. 0.4±0.25 (6.0) (4.6) 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 Unit : mm (0075) 0.1±0.1 1.45 s Features Active termination of 18 signal lines Low consumption power owing to stand-by function built-in (100µA in stand-by condition) Small output terminal capacitance : 4.5 pF, typ. High accuracy regulator : 2.85V±60mV 0.5 8.4±0.3 11.73±0.3 24-pin SOP Package (HSOP024-P-0450) Number in ( ) is a reference value. s Application SCSI interface board of PC SCSI equipment such as CD-ROM, MO, PD and MD printer s Block Diagram VCC 12 13 + – + 1 0.1µF 1µF SG SG SG SG SG SG SG SG SG SG SG SG SG SG SG SG SG SG LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6 LINE 7 LINE 8 LINE 9 LINE 10 LINE 11 LINE 12 LINE 13 LINE 14 LINE 15 LINE 16 LINE 17 LINE 18 18 17 16 Thermal Shut Down 15 14 11 10 Band Gap Reference 9 8 7 5 4 3 2 23 22 STANDBY 24 21 20 ...