Table 3.4 power and ground pins, 2 electrical characteristics, Electrical characteristics – Avago Technologies LSI53C180 User Manual
Page 41: Power and ground pins, Section 3.2, “electrical characteristics, Table 3.4
Electrical Characteristics
3-7
3.2 Electrical Characteristics
This section specifies the DC and AC electrical characteristics of the
LSI53C180. These electrical characteristics are listed in four categories:
•
•
TolerANT Technology Electrical Characteristics
•
•
Table 3.4
Power and Ground Pins
Power and Ground
Pin
Type
Description
VDD
SCSI
C5, C9, C13, E3, E15, J3,
J15, N3, N15, R5, R9, R13
I
Power supplies to the SCSI bus I/O pins.
VDD
CORE
B8, K3, K15, U8
I
Power supplies to the CORE logic.
VDD
IO
A2
I
Power supplies to the I/O logic.
VSS
C7, C11, G3, G7, G8, G9,
G10, G11, G15, H7, H8,
H9, H10, H11, J7, J8, J10,
J11, K7, K8, K9, K10, K11,
L3, L7, L8, L9, L10, L11,
L15, R7, R11
I
Ground ring.
NC
A1, A3, A4, A5, A17, B3,
B4, B7, C4, C6, C14, C15,
D3, F3, F15, H15, L2, P15,
R4, R10, R12, T1, U1, U6,
U16, U17
N/A
No Connections.
Note:
•
All V
DD
pins must be supplied 3.3 V. The LSI53C180 output signals drive 3.3 V.
•
If the power supplies to the VDD
IO
and VDD
CORE
pins in a chip testing environment are separated,
either power up the pins simultaneously or power up VDD
CORE
before VDD
IO
. The VDD
IO
pin must
always power down before the VDD
CORE
pin.