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參數(shù)資料
| 型號： | 74FST3400DW |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-Bit, 4-Port Bus Exchange Switch |
| 中文描述： | CBT/FST/QS/5C/B SERIES, 4-BIT EXCHANGER, TRUE OUTPUT, PDSO24 |
| 封裝： | SOIC-24 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 96K |
| 代理商： | 74FST3400DW |
74FST3400
http://onsemi.com
4
DC ELECTRICAL CHARACTERISTICS
V
CC
(V)
T
A
=
40 C to
85 C
Symbol
Parameter
Conditions
Min
Typ*
Max
Unit
V
IK
Clamp Diode Resistance
I
IN
=
18mA
4.5
1.2
V
V
IH
HighLevel Input Voltage
4.0 to 5.5
2.0
V
V
IL
LowLevel Input Voltage
4.0 to 5.5
0.8
V
I
I
Input Leakage Current
0
V
IN
5.5 V
5.5
1.0
A
I
OZ
OFFSTATE Leakage Current
0
A, B
V
CC
5.5
1.0
A
R
ON
Switch On Resistance (Note 6)
V
IN
= 0 V, I
IN
= 64 mA
4.5
4
7
V
IN
= 0 V, I
IN
= 30 mA
4.5
4
7
V
IN
= 2.4 V, I
IN
= 15 mA
4.5
8
15
V
IN
= 2.4 V, I
IN
= 15 mA
4.0
11
20
I
CC
Quiescent Supply Current
V
IN
= V
CC
or GND, I
OUT
= 0
5.5
3
A
I
CC
Increase In I
CC
per Input
*Typical values are at V
= 5.0 V and T
= 25
°
C.
6. Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower
of the voltages on the two (A or B) pins.
One input at 3.4 V, Other inputs at V
CC
or GND
5.5
2.5
mA
AC ELECTRICAL CHARACTERISTICS
T
A
=
40 C to
85 C
C
L
= 50 pF, RU = RD = 500
V
CC
= 4.55.5 V
V
CC
= 4.0 V
Symbol
Parameter
Conditions
Min
Max
Min
Max
Unit
t
PHL
,
t
PLH
Prop Delay Bus to Bus (Note 7)
V
I
= OPEN
0.25
0.25
ns
Prop Delay, BXn to An, Bn, Cn or Dn
1.0
5.3
6.0
t
PZH
,
t
PZL
Output Enable Time, BXn to An, Bn, Cn or Dn
V
I
= 7 V for t
PZL
1.0
5.8
6.5
ns
Output Enable Time, I
OE
to An, Bn, Cn or Dn
V
I
= OPEN for t
PZH
1.0
5.8
6.5
t
PHZ
,
t
PLZ
Output Disable Time, BXn to An, Bn, Cn or Dn
V
I
= 7 V for t
PLZ
1.0
5.3
6.2
ns
Output Disable Time, I
OE
to An, Bn, Cn or Dn
7. This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the
typical On resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
V
I
= OPEN for t
PHZ
1.0
5.3
6.2
CAPACITANCE
(Note 8)
Symbol
Parameter
Conditions
Typ
Max
Unit
C
IN
Control Pin Input Capacitance
V
CC
= 5.0 V
6
pF
C
I/O
Port Input/Output Capacitance
V
CC
, OE = 5.0 V
13
pF
8. T
A
=
25
°
C, f = 1 MHz, Capacitance is characterized but not tested.
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