IDTQS3LR384SO [ETC]
BUS SWITCH|CMOS|SOP|24PIN|PLASTIC ; BUS开关| CMOS |专科| 24PIN |塑料\n
| 型号： | IDTQS3LR384SO |
| 厂家： | 
ETC |
| 描述： | BUS SWITCH|CMOS|SOP|24PIN|PLASTIC
|
| 文件： | 总5页 (文件大小：80K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QUICKSWITCH® PRODUCTS
IDTQS3LR384
HIGH-SPEED CMOS
10-BIT LOW POWER, LOW
RESISTANCE BUS SWITCH
FEATURES:
DESCRIPTION:
−
−
−
−
−
−
−
Enhanced N channel FET with no inherent diode to Vcc
2.5Ω bidirectional switches connect inputs to outputs
Zero propagation delay, zero ground bounce
Undershoot clamp diodes on all switch and control pins
Ultra low power with 0.2µA typical Icc
TheQS3LR384providesasetoftenhigh-speedCMOSTTL-compatible
bus switches. Twobanks of5switches arecontrolledbyindependentBus
Enable(BE)signals. TheverylowRON resistance(2.5Ω)oftheQS3LR384
allowsinputstobeconnectedwithoutaddingpropagationdelayandwithout
generatingadditionalgroundbounce noise.
Two enables control five bits each
Available in SOIC and QSOP Packages
The low ON resistance of the QS3LR384 makes it ideal for PCI hot-
pluggingorhot-swappingapplications.
The QS3LR384 is characterized for operation at -40°C to +85°C.
APPLICATIONS
−
Hot -swapping and hot-docking (low resistance for PCI and
Compact PCI applications)
Voltage translation (5V to 3.3V)
Power conservation
Capacitance reduction and isolation
Bus isolation
−
−
−
−
−
Clock gating
FUNCTIONALBLOCKDIAGRAM
A0
B0
A4
A5
B4
B5
A9
B9
BEA
BEB
INDUSTRIAL TEMPERATURE RANGE
NOVEMBER 1999
1
c
1999 Integrated Device Technology, Inc.
DSC-5547/-
IDTQS3LR384
HIGH-SPEEDCMOS10-BITLOWPOWER,LOWRESISTANCEBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ABSOLUTE MAXIMUM RATINGS (1)
PINCONFIGURATION
Symbol
Description
Supply Voltage to Ground
DC Switch Voltage VS
Max.
– 0.5 to +7
– 0.5 to +7
– 0.5 to +7
-3
Unit
V
(2)
VTERM
BEA
B0
1
2
3
4
5
6
7
24
23
22
21
20
19
18
Vcc
B9
A9
A8
B8
B7
A7
(3)
V
VTERM
(3)
DC Input Voltage VIN
V
VTERM
VAC
AC Input Voltage (pulse width ≤20ns)
V
A0
IOUT
PMAX
TSTG
DC Output Current
120
mA
W
A1
Maximum Power Dissipation
Storage Temperature
.5
B1
– 65 to +150 °C
B2
SO24-2
SO24-8
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or
any other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect reliability.
2. Vcc Terminals.
A2
A3
B3
B4
8
9
17
16
A6
B6
B5
10
11
12
15
14
13
3. All terminals except Vcc.
A4
A5
GND
BEB
CAPACITANCE
(TA = +25OC, f = 1.0MHz, VIN = 0V, VOUT = 0V)
Pins
Typ.
Max. (1)
Unit
SOIC/ QSOP
TOP VIEW
Control Inputs
3
5
pF
Quickswitch Channels (Switch OFF)
5
7
pF
NOTE:
1. This parameter is guaranteed but not production tested.
PIN DESCRIPTION
Pin Names
I/O
Description
A0 - A9
I/O
Bus A
Bus B
B0 - B9
I/O
I
BEA, BEB
Bus Switch Enable
FUNCTION TABLE(1)
BEA
BEB
B0 - B4
B5 - B9
Function
Disconnect
H
H
Hi-Z
Hi-Z
L
H
H
A0 - A4
Hi-Z
Hi-Z
Connect
Connect
Connect
L
A5 - A9
A5 - A9
L
L
A0 - A4
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High-Impedence
2
IDTQS3LR384
HIGH-SPEEDCMOS10-BITLOWPOWER,LOWRESISTANCEBUSSWITCH
INDUSTRIALTEMPERATURERANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = -40°C to +85°C, VCC = 5.0V ± 10%
Symbol
Parameter
Input HIGH Voltage
Test Conditions
Min. Typ.(1) Max.
Unit
VIH
Guaranteed Logic HIGH for Control Pins
2
—
—
—
0.8
±1
±1
5
V
VIL
IIN
Input LOW Voltage
Guaranteed Logic LOW for Control Pins
0V ≤ VIN ≤ Vcc
—
—
—
—
—
3.7
V
µA
µA
Ω
Input Leakage Current (Control Inputs)
Off-State Current (Hi-Z)
Switch ON Resistance
Switch ON Resistance
Pass Voltage (2)
±0.01
±0.01
2.5
IOZ
RON
RON
VP
0V ≤ VOUT ≤ Vcc, Switches OFF
Vcc = Min., VIN = 0V, ION = 30mA
Vcc = Min., VIN = 2.4V, ION = 15mA
VIN = Vcc = 5V, IOUT = -5µA
4
8.5
4.3
Ω
4
V
NOTES:
1. Typical values are at VCC = 5.0V, TA = 25°C.
2. Pass voltage is guaranteed but not production tested.
TYPICAL ON RESISTANCE vs VIN AT VCC = 5V
16
14
12
10
8
RON
(ohms)
6
4
2
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
VIN
(Volts)
3
IDTQS3LR384
HIGH-SPEEDCMOS10-BITLOWPOWER,LOWRESISTANCEBUSSWITCH
INDUSTRIALTEMPERATURERANGE
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
Typ.
Max.
Unit
ICCQ
Quiescent Power Supply Current
VCC = Max., VIN = GND or Vcc, f = 0
0.2
3
µA
∆ICC
Power Supply Current per Control Input HIGH (2)
Dynamic Power Supply Current per MHz(3)
V
CC = Max., V = 3.4V, f = 0
—
—
2.5
mA
IN
ICCD
VCC = Max., A and B pins open
0.25
mA/MHz
Control Input Toggling at 50% Duty Cycle
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TLL driven input (VIN = 3.4V, control inputs only). A and B pins do not contribute to ∆Icc
.
3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A
and B inputs generate no significant AC or DC currents as they transition. This parameter is guaranteed but not production tested.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C, VCC = 5.0V ± 10%
Ω
CLOAD = 50pF, RLOAD = 500 unless otherwise noted.
Min. (1)
Typ.
Max.
Symbol
tPLH
Parameter
Unit
Data Propagation Delay (2,4)
Ax to Bx, Bx to Ax
—
—
0.12 (3)
ns
tPHL
tPZL
tPZH
Switch Turn-on Delay
BEA, BEB to Ax, Bx
Switch Turn-off Delay (2)
BEA, BEB to Ax, Bx
1.5
1.5
—
—
6.5
5.5
ns
ns
tPLZ
tPHZ
NOTES:
1. Minimums are guaranteed but not production tested.
2. This parameter is guaranteed but not production tested.
3. The time constant for the switch alone is of the order of 0.12ns for CL = 50pF.
4. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. Since this
time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation
delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load
on the driven side.
4
IDTQS3LR384
HIGH-SPEEDCMOS10-BITLOWPOWER,LOWRESISTANCEBUSSWITCH
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
XX
IDTQS
XXXXX
X
Package
Process
Device Type
Industrial (-40°C to +85°C)
Blank
Small Outline IC (SO24-2)
Quarter Size Outline Package (SO24-8)
SO
Q
High Speed CMOS 10-Bit Low Power, Low
Resistance Bus Switch
3LR384
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5
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