IDTQS34X245 [IDT]
QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES; 快速切换产品高速CMOS快速切换32位MULTIWIDTH总线开关
| 型号： | IDTQS34X245 |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES |
| 文件： | 总5页 (文件大小：50K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QUICKSWITCH® PRODUCTS
IDTQS34X245
HIGH-SPEED CMOS
QUICKSWITCH 32-BIT
MULTIWIDTH™ BUS SWITCHES
DESCRIPTION:
FEATURES:
The QS34X245 is a member of the MultiWidthTM family of QuickSwitch
devicesandprovidesasetof32high-speedCMOScompatiblebusswitches
in a flow-through pinout. This device is available in the MilliPaQ package,
the world's first small outline 32-bit solution. The low ON-resistance of the
QS34X245allowsinputstobeconnectedtooutputswithoutaddingpropa-
gationdelayandwithoutgeneratingadditionalgroundbouncenoise. When
Output Enable (OEn) is low, the switches are turned on, connecting bus A
tobusB. WhenOEnishigh,theswitchesareturnedoff.Thisdeviceisideally
suited for 32/64 bit applications where board space is at a premium.
QuickSwitch devices provide speeds an order of magnitude faster than
conventionallogicdevices.
• Enhanced N channel FET with no inherent diode to Vcc
• Bidirectional switches connect inputs to outputs
• Zero propagation delay, zero ground bounce
• QS34X245 is 32-bit version of QS3245
• Flow-through pinout for easy layout
• Undershoot clamp diodes on all switch and control inputs
• TTL-compatible control inputs
• Available in 80-pin MilliPaQ™ package
APPLICATIONS:
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Bus switching and isolation
• Power conservation
The QS34X245 is characterized for operation at -40°C to +85°C.
• Logic replacement (data processing)
• Capacitance isolation
• Clock gating
FUNCTIONALBLOCKDIAGRAM
A7
A0
A1 A2 A3
A4
A5 A6
A23
A16 A17 A18 A19 A20 A21 A22
OE3
OE1
B2 B3
B1
B4
B5 B6 B7
B16 B17 B18 B19 B20 B21 B22 B23
A24 A25 A26 A27 A28 A29 A30 A31
B0
A8
A12
A9 A10 A11
A13 A14
A15
OE4
OE2
B8
B9 B10
B11 B12
B13 B14 B15
B24 B25 B26 B27 B28 B29 B30 B31
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
APRIL 2000
1
c
2000 Integrated Device Technology, Inc.
DSC-5481/1
IDTQS34X245
HIGH-SPEEDCMOSQUICKSWITCH32-BITMULTIWIDTHBUSSWITCHES
INDUSTRIALTEMPERATURERANGE
ABSOLUTEMAXIMUMRATINGS(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)
VCC
OE1
B0
VTERM
NC
A0
A1
1
80
79
78
77
76
(3)
VTERM
V
2
3
4
(3)
VTERM
DC Input Voltage VIN
V
VAC
AC Input Voltage (pulse width ≤ 20ns)
DC Output Current
V
A2
A3
B1
IOUT
PMAX
TSTG
120
mA
W
B2
5
Maximum Power Dissipation (TA =70°C)
Storage Temperature
1.4
A4
B3
6
7
75
74
–65 to +150
°C
A5
B4
NOTE:
A6
8
9
73
72
71
70
B5
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.
A7
B6
GND
10
11
12
B7
VCC
NC
A8
2. Vcc terminals.
3. All terminals except Vcc.
OE2
B8
69
68
A9
13
14
A10
A11
67
66
65
64
63
B9
15
16
B10
A12
A13
B11
B12
17
18
19
20
A14
B13
B14
B15
CAPACITANCE
(TA = +25°C, f = 1.0MHZ, VIN = 0V, VOUT = 0V)
A15
62
61
Pins
Typ.
Max.(1)
Unit
pF
GND
60
VCC
NC
21
22
23
24
25
Control Pins
3
7
4
8
A16
Quickswitch Channels (Switch OFF)
pF
OE3
B16
B17
B18
59
58
A17
A18
A19
NOTE:
1. This parameter is measured at characterization but not tested.
57
56
A20
A21
A22
A23
GND
NC
26
27
55
54
53
52
B19
B20
28
29
30
B21
B22
PINDESCRIPTION
Pin Names
Description
B23
51
50
49
48
31
32
VCC
OEn
An
OutputEnable
Data I/Os
A24
A25
A26
A27
OE4
B24
B25
B26
B27
B28
B29
33
34
Bn
Data I/Os
47
46
45
44
35
36
A28
A29
A30
FUNCTIONTABLE(1)
37
38
39
40
OEn
H
Function
43
42
Disconnected
An = Bn
A31
B30
B31
L
GND
41
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
MILLIPAQ
TOP VIEW
2
IDTQS34X245
HIGH-SPEEDCMOSQUICKSWITCH32-BITMULTIWIDTHBUSSWITCHES
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%
Symbol
VIH
Parameter
Input HIGH Level
Test Conditions
Guaranteed Logic HIGH for Control Pins
Guaranteed Logic LOW for Control Pins
0V ≤ VIN ≤ VCC
Min.
2
Typ.(1)
—
Max.
—
Unit
V
VIL
Input LOW Level
—
—
0.8
±1
±1
7
V
IIN
Input LeakageCurrent (Control Inputs)
Off-State Current (Hi-Z)
Switch ON Resistance
—
—
µA
µA
Ω
IOZ
0V ≤ VOUT ≤ VCC, Switches OFF
—
—
RON
VCC = Min., VIN = 0V, ION = 30mA
VCC = Min., VIN = 2.4V, ION =15mA
VIN = VCC = 5V, IOUT = -5µA
—
5
—
10
15
VP
PassVoltage(2)
3.7
4
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
RON
(ohms)
14
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
IDTQS34X245
HIGH-SPEEDCMOSQUICKSWITCH32-BITMULTIWIDTHBUSSWITCHES
INDUSTRIALTEMPERATURERANGE
POWERSUPPLYCHARACTERISTICS
Symbol
ICCQ
Parameter
TestConditions(1)
VCC = Max., VIN = GND or Vcc, f = 0
VCC = Max., VIN = 3.4V, f = 0
Max.
12
Unit
µA
Quiescent Power Supply Current
Power Supply Current per Control Input HIGH (2)
Dynamic Power Supply Current per MHz(3)
∆ICC
1.5
mA
ICCD
VCC = Max., A and B pins open
0.25
mA/MHz
Control Inputs 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.
SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE
TA = -40°C to +85°C, VCC = 5.0V ± 5%;
CLOAD = 50pF, RLOAD = 500Ω unless otherwise noted.
Symbol
tPLH
Parameter
Min.(1)
Typ.
Max.
Unit
DataPropagationDelay(1,2)
An to/from Bn
—
—
0.25
ns
tPHL
tPZL
SwitchTurn-onDelay
OE to An/Bn
SwitchTurn-offDelay(1)
0.5
0.5
—
—
5.6
5.2
ns
ns
tPZH
tPLZ
tPHZ
OE to An/Bn
NOTES:
1. Minimums are guaranteed but not production tested.
2. 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
IDTQS34X245
HIGH-SPEEDCMOSQUICKSWITCH32-BITMULTIWIDTHBUSSWITCHES
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
XX
IDTQS
XXXXXX
X
Package
Process
Device Type
Industrial (-40°C to +85°C)
80-pin Millipaq
Blank
Q3
34X2245
High-Speed CMOS Quickswitch 32-Bit Multiwidth Bus Switches
CORPORATE HEADQUARTERS
2975StenderWay
Santa Clara, CA 95054
for SALES:
for Tech Support:
logichelp@idt.com
(408) 654-6459
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
5
相关型号：
IDTQS34X245Q3
Bus Driver, CBT/FST/QS/5C/B Series, 4-Func, 8-Bit, True Output, CMOS, PDSO80, MILLIPAK-80
IDT
IDTQS34X245Q3G
Bus Driver, CBT/FST/QS/5C/B Series, 4-Func, 8-Bit, True Output, CMOS, PDSO80, GREEN, MILLIPAK-80
IDT
IDTQS34X383Q38
Bus Exchanger, CBT/FST/QS/5C/B Series, 4-Func, 4-Bit, True Output, CMOS, PDSO80, 0.150 INCH, MILLIPAK-80
IDT
IDTQS34XR245
QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT LOW RESISTANCE MULTIWIDTHTM BUS SWITCHES
IDT
IDTQS34XR245Q3
QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT LOW RESISTANCE MULTIWIDTHTM BUS SWITCHES
IDT
©2020 ICPDF网 联系我们和版权申明