參數(shù)資料
型號: SYM53C140
廠商: LSI CORP
元件分類: 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
文件頁數(shù): 40/68頁
文件大?。?/td> 928K
代理商: SYM53C140
3-12
Specifications
I
OL
Output low current
100
200
mA
V
OL
= 0.5 V
I
OSH2
Short-circuit output high
current
625
mA
Output driving low,
pin shorted to V
DD
supply
3
I
OSL
Short-circuit output low
current
95
mA
Output driving high,
pin shorted to V
SS
supply
I
LH
Input high leakage
20
μ
A
0.5<V
DD
<V
DD
5 Max
V
PIN
= V
DD
3
I
LL
Input low leakage
–20
μ
A
0.5<V
DD
<V
DD
5 Max
V
PIN
= 0 V
R
I
Input resistance
20
M
SCSI pins
4
C
P
Capacitance per pin
15
pF
PQFP
t
R2
Rise time, 10% to 90%
4.0
18.5
ns
Figure 3.6
t
F
Fall time, 90% to 10%
4.0
18.5
ns
Figure 3.6
dV
H
/dt
Slew rate, LOW to HIGH
0.15
0.50
V/ns
Figure 3.6
dV
L
/dt
Slew rate, HIGH to LOW
0.15
0.50
V/ns
Figure 3.6
ESD
Electrostatic discharge
2
KV
MIL-STD-883C;
3015-7
Latch-up
100
mA
Filter delay
20
30
ns
Figure 3.7
Ultra filter delay
10
15
ns
Figure 3.7
Ultra2 filter delay
5
8
ns
Figure 3.7
Extended filter delay
40
60
ns
Figure 3.7
1. These values are guaranteed by periodic characterization; they are not 100% tested on every device.
2. Active negation outputs only: Data, Parity, SREQ/, SACK/. (Minus Pins) SCSI mode only.
3. Single pin only; irreversible damage may occur if sustained for one second.
4. SCSI RESET pin has 10 k
pull-up resistor.
Table 3.15
TolerANT Technology Electrical Characteristics
1
(Cont.)
Symbol
Parameter
Min
Max
Units
Test Conditions
(Sheet 2 of 2)
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