IDTQS33X253 [IDT]
QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX; 快速切换产品高速CMOS快速切换MULTIWIDTH 24 ： 6复用器/解复用器
| 型号： | IDTQS33X253 |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX |
| 文件： | 总5页 (文件大小：94K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QUICKSWITCH® PRODUCTS
IDTQS33X253
HIGH-SPEED CMOS
QUICKSWITCH MULTIWIDTH
24:6 MUX/DEMUX
DESCRIPTION:
FEATURES:
−
−
−
−
−
−
−
−
Enhanced N channel FET with no inherent diode to Vcc
Bidirectional switches connect inputs to outputs
24:6 Mux/Demux switches
Zero propagation delay, zero ground bounce
Individual controls for each bank
Undershoot clamp diodes on all switch and control pins
TTL-compatible control inputs
Available in 48-pin QVSOP Package
The QS33X253 is a high-speed CMOS 24:6 (3, dual 4:1) multiplexer/
demultiplexer.TheQS33X253is amemberoftheMultiWidth™familyand
isfunctionallycompatibletothreeoftheQuickSwitchversionofthe 74F253,
74FCT253,andthe 74ALS/AS/LS253Dual4:1multiplexers.The lowON
resistanceoftheQS33X253allowsinputstobeconnectedtooutputswithout
addingpropagationdelayandwithoutgeneratingadditionalgroundbounce
noise.TTL-compatible controlcircuitrywith"Break-before-make"feature
avoids bus contention on the demux side. This part is ideal for video
switchingandfourwaymemorybankinterleavingapplications.
APPLICATIONS
Mux/Demux devices provide an order of magnitude faster speed than
equivalentlogicdevices.
−
−
−
−
Logic replacment
Video, audio, graphics switching, muxing
Hot-swapping, hot-docking
Voltage translation (5V to 3.3V)
The QS33X253 is characterized for operation at -40°C to +85°C.
FUNCTIONALBLOCKDIAGRAM
S0 AB
S1 AB
EA
S0 CD
S1 CD
EC
EB
ED
I0 A
I1 A
I2 A
I3 A
I0 B
I1 B
I2 B
I3 B
I0 C
I1 C
Y A
Y C
I2 C
I3 C
I0 D
I1 D
Y B
Y D
I2 D
I3 D
S0 EF
S1 EF
EE
EF
I0 E
I1 E
I2 E
I3 E
I0 F
I1 F
I2 F
I3 F
Y E
Y F
INDUSTRIAL TEMPERATURE RANGE
JANUARY 2000
1
c
1999 Integrated Device Technology, Inc.
DSC-5761/-
IDTQS33X253
HIGH-SPEEDCMOSQUICKSWITCHMULTIWIDTH24:6MUX/DEMUX
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
VCC
EB
EA
1
2
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
(3)
V
VTERM
S1AB
(3)
DC Input Voltage VIN
V
VTERM
AB
S0
I3A
I2A
3
VAC
AC Input Voltage (pulse width ≤20ns)
V
I3B
I2B
I1B
I0B
4
IOUT
PMAX
TSTG
DC Output Current
120
mA
W
I1A
5
Maximum Power Dissipation (TA = 85°C)
Storage Temperature
.5
I0A
6
– 65 to +150 °C
YA
7
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.
B
Y
GND
8
VCC
ED
EC
S1CD
I3C
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
CD
S0
I2C
I3D
I2D
I1D
I0D
YD
3. All terminals except Vcc.
I1C
I0C
CAPACITANCE
YC
(TA = +25OC, f = 1.0MHz, VIN = 0V, VOUT = 0V)
GND
EE
Pins
Typ.
Max. (1)
Unit
VCC
EF
Control Inputs
4
5
pF
EF
S1
Quickswitch Channels
(Switch OFF)
Demux
Mux
5
7
pF
pF
I3E
I2E
I1E
I0E
14
16
S0EF
I3F
NOTE:
1. This parameter is guaranteed at characterization but not tested.
I2F
I1F
I0F
YF
FUNCTION TABLE(1, 2)
E
Y
Enable
Select
Outputs
GND
EA
EB
S1AB
S0AB
YA
YB
Function
Disable A
H
X
X
X
L
X
Hi-Z
X
X
QVSOP
TOP VIEW
X
H
L
L
L
L
X
L
Hi-Z
I 0B
I 1B
I 2B
I 3B
Disable B
S1 - 0 = 0
S1 - 0 = 1
S1 - 0 = 2
S1 - 0 = 3
L
I0A
I1A
I2A
I3A
L
L
H
L
L
L
H
H
PIN DESCRIPTION
H
Pin Names
I/O
Description
NOTES:
Ixx
I
Data Inputs
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High-Impedence
2. This table represents the function for block “AB”.
S0xx, S1xx
I
I
Select Inputs
Enable Inputs
Data Outputs
Ex
Yx
O
The “CD” block nomenclature substitutes “A” for “C” and “B” for “D”.
The “EF” block nomenclature substitutes “A” for “E” and “B” for “F”.
2
IDTQS33X253
HIGH-SPEEDCMOSQUICKSWITCHMULTIWIDTH24:6MUX/DEMUX
INDUSTRIALTEMPERATURERANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = -40°C to +85°C, VCC = 5.0V ± 5%
Symbol
Parameter
Input HIGH Voltage
Test Conditions
Min. Typ.(1) Max.
Unit
VIH
Guaranteed Logic HIGH for Control Inputs
2
—
—
—
—
7
—
0.8
±1
±1
10
V
VIL
IIN
Input LOW Voltage
Guaranteed Logic LOW for Control Inputs
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)
IOZ
RON
RON
VP
0V ≤ VOUT ≤ Vcc
Vcc = Min., VIN = 0V, ION = 30mA
Vcc = Min., VIN = 2.4V, ION = 15mA
VIN = Vcc = 5V, IOUT = -5µA
10
4
15
Ω
4.2
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
RON
(ohms)
12
10
8
6
4
2
0
1.5
2.0
2.5
3.0
3.5
1.0
0.0
0.5
VIN
(Volts)
3
IDTQS33X253
HIGH-SPEEDCMOSQUICKSWITCHMULTIWIDTH24:6MUX/DEMUX
INDUSTRIALTEMPERATURERANGE
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
Max.
Unit
ICCQ
Quiescent Power Supply Current
VCC = Max., VIN = GND or Vcc, f = 0
9
µA
(2)
∆ICC
Power Supply Current per Control Input HIGH
Dynamic Power Supply Current per MHz(3)
V
CC = Max., V = 3.4V , f = 0
1.5
mA
IN
ICCD
VCC = Max., I and Y 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 TTL driven input (VIN = 3.4V, control inputs only). I and Y 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 I
and Y 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 ± 5%
Ω
CLOAD = 50pF, RLOAD = 500 unless otherwise noted.
Min. (1)
Typ.
Max.
Symbol
tPLH
Parameter
Unit
Data Propagation Delay (2, 3)
In to Y
—
—
0.25
ns
tPHL
tPZL
Switch Turn-On Delay
Sn to Y
0.5
0.5
0.5
—
—
—
6.6
6
ns
ns
ns
tPZH
tPZL
Switch Turn-Off Delay
En to Y
Switch Turn-Off Delay (2)
En to Y, Sn to Y
tPZH
tPLZ
6
tPHZ
NOTES:
1. Minimums guaranteed but not tested.
2. This parameter is guaranteed but not tested
3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time
constant for the switch alone is of the order of 0.25ns for CL = 50pF. 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
IDTQS33X253
HIGH-SPEEDCMOSQUICKSWITCHMULTIWIDTH24:6MUX/DEMUX
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
XX
IDTQS
XXXXX
X
Package
Process
Device Type
Industrial (-40°C to +85°C)
Blank
Q1
QVSOP
33X253
High Speed CMOS Quickswitch Multiwidth 24:6
Mux/Demux
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The IDT logo, QuickSwitch, and SynchroSwitch are registered trademarks of Integrated Device Technology, Inc.
5
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