AN8612NSR Datasheet, PDF (1/5 Pages) Panasonic Semiconductor – SCSI Active Terminator IC

AN8612NSR
SCSI Active Terminator IC
s Overview
The AN8612NSR is a terminator IC complying with the stan-
dard 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 ter-
minal capacitance. It can support the 10 M byte/s of SCSI-II
and 20 M bytes/s of Fast-20.
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
s Application
SCSI interface board of PC
SCSI equipment such as CD-ROM, MO, PD and MD printer
s Block Diagram
V_CC
12
13
+
–
Thermal
Shut Down
Band Gap
Reference
STANDBY ²⁴
6
19
(6.0)
(4.6)
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
Unit : mm
0.5
8.4±0.3
11.73±0.3
Number in ( ) is a reference value.
24-pin SOP Package (HSOP024-P-0450)
+
1
0.1µF 1µF
18 SG LINE 1
17 SG LINE 2
16 SG LINE 3
15 SG LINE 4
14 SG LINE 5
11 SG LINE 6
10 SG LINE 7
9 SG LINE 8
8 SG LINE 9
7 SG LINE 10
5 SG LINE 11
4 SG LINE 12
3 SG LINE 13
2 SG LINE 14
23 SG LINE 15
22 SG LINE 16
21 SG LINE 17
20 SG LINE 18