3.3 Volt DC Specifications
9-5
Table 9.6
SCSI Signals—DIFFSENS
Symbol
Parameter
Min
Max
Units
Test Conditions
V
ih
High differential sense voltage
(indicates SFF-8067 mode)
2.4
5.0
V
–
V
il
Low differential sense voltage
(indicates SE SCSI operation)
Vss
−
0.3
0.5
V
–
V
im
Mid-level differential sense voltage
(indicates LVD mode)
0.7
1.9
V
–
I
oz
3-state leakage
−
10
10
µ
A
–
Table 9.7
Bidirectional 80C32 Signals—AD[7:0], A[15:8], ALE, PSEN/, RD/, WR/
Symbol
Parameter
Min
Max
Units
Test Conditions
V
ih
Input high voltage
2.0
5.0
V
–
V
il
Input low voltage
Vss
−
0.5
0.8
V
–
V
oh
Output high voltage
2.4
Vdd
V
−
4 mA
V
ol
Output low voltage
Vss
0.4
V
4 mA
I
oz
3-state leakage
−
10
10
µ
A
–
I
pull
Pull-down current
100
–
µ
A
–
Table 9.8
Input Signals—CLK, TCK, TMS, TDI, TRST/, TESTIN
Symbol
Parameter
Min
Max
Units
Test Conditions
V
ih
Input high voltage
2.0
5.0
V
–
V
il
Input low voltage
Vss
−
0.5
0.8
V
–
V
oh
Output high voltage
2.4
Vdd
V
−
4 mA
V
ol
Output low voltage
Vss
0.4
V
4 mA
I
oz
Pull-up current
−
10
10
µ
A
–
Summary of Contents for Symbios SYM53C040
Page 12: ...xii Preface...
Page 90: ...4 18 SCSI and DMA Registers...
Page 98: ...5 8 SFF 8067 Registers...
Page 110: ...6 12 Two Wire Serial Registers...
Page 126: ...7 16 Miscellaneous Registers...
Page 160: ...8 34 System Registers...
Page 184: ...9 24 Electrical Characteristics...
Page 194: ...A 10 Register Summary...
Page 214: ......
