參數(shù)資料
型號(hào): SYM53C140
廠商: LSI CORP
元件分類(lèi): 其它接口
英文描述: Ultra2 SCSI Bus Expander(Ultra2 SCSI總線擴(kuò)展器)
中文描述: SPECIALTY INTERFACE CIRCUIT, PQFP160
封裝: 32 MM, PLASTIC, QFP-160
文件頁(yè)數(shù): 34/68頁(yè)
文件大?。?/td> 928K
代理商: SYM53C140
3-6
Specifications
Table 3.4
Power and Ground Pins
Power and Ground
Pin
Type
Description
VDD
SCSI
10, 27, 37, 51, 66, 75, 81,
99, 113, 121, 133
I
Power supplies to the SCSI bus I/O pins.
VSS
SCSI
7, 15, 22, 32, 41, 48, 56,
63, 71, 72, 80, 88, 95, 102,
110, 120, 128, 136, 160
I
Ground for the SCSI bus I/O pins.
VDD
CORE
26, 98
I
Power supplies to the CORE logic.
VSS
CORE
23, 103
I
Ground for the CORE logic.
VDD
IO
158
I
Power supplies to the I/O logic.
VSS
IO
144
I
Ground for the I/O logic.
RBIAS
38
I
Receiver bias control, R = 9.76 K
1%.
NC
151–156
N/A
No Connections.
Note:
All V
DD
pins must be supplied 3.3 V. The SYM53C140 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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