Figure 3.1 LSI8751D Mechanical Drawing

82.55 (REF) (3.25 (REF))

127.00 (REF) (5.00 (REF))

J2

J4

J3

LSI53C875J

J1

All dimensions are given in millimeters and (inches).

3.1.2 Electrical Characteristics

The LSI8751D maximum power requirements, including SCSI

TERMPWR, under normal operation, are shown in Table 1.1:

Table 3.1 Maximum Power Requirements

+5 V DC

± 5%

1.5 A

Over the operating range 5 ° C to 55 ° C

 

 

 

 

+3.3 V DC

± 0.3 V

130 mA

Over the operating range 5 ° C to 55 ° C

 

 

 

when operating in a 3.3 V PCI slot

 

 

 

 

Under abnormal conditions, such as a short on SCSI TERMPWR, +5 V current may be higher. At temperatures of at least 25 ° C, a current of

4 A is sustained no longer than 30 seconds before the self-resetting TERMPWR short circuit protection device opens.

3-2

Technical Specifications