參數(shù)資料
型號(hào): SYM53C180
廠商: LSI Corporation
英文描述: Ultra3 SCSI Bus Expander(Ultra2 SCSI總線擴(kuò)展器)
中文描述: 個(gè)Ultra3 SCSI總線擴(kuò)展(Ultra2的SCSI總線擴(kuò)展器)
文件頁(yè)數(shù): 41/78頁(yè)
文件大?。?/td> 1073K
代理商: SYM53C180
Electrical Characteristics
3-7
3.2 Electrical Characteristics
This section specifies the DC and AC electrical characteristics of the
SYM53C180. These electrical characteristics are listed in four
categories:
DC Characteristics
TolerANT Technology Electrical Characteristics
AC Characteristics
SCSI Interface Timing
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 SYM53C180 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.
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