IDTQS34X383Q3G [IDT]
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| 型号： | IDTQS34X383Q3G |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | 暂无描述 开关 逻辑集成电路 光电二极管 |
| 文件： | 总5页 (文件大小：58K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QUICKSWITCH® PRODUCTS
HIGH-SPEED 32-BIT BUS EXCHANGE
IDTQS34X383
SWITCH IN MILLIPAQ™
DESCRIPTION:
FEATURES:
The QS34X383 provides four sets of eight high-speed CMOS TTL-
• 5Ω switches connect inputs to outputs
• Zero propagation delay
compatible bus switches. The low ON resistance (5Ω) of the QS34X383
allowsinputstobeconnectedtooutputswithoutaddingpropagationdelay
and without generating additional ground bounce noise. The Bus Enable
(BEx) signals turn the switches on. The Bus Exchange (BXx) signals
provide nibble swap of the AB and CD pairs of signals. This exchange
configurationallowsbyteswappingofbusesinsystems.Itcanalsobeused
as a 16-bit 2-to-1 multiplexer and to create low delay barrel shifters, etc.
The QS34X383 is characterized for operation at -40°C to +85°C.
• Direct bus connect
• Live insertion capability
• Low power CMOS proprietary technology
• Bus exchange allows nibble swap
• TTL-compatible control inputs
• Available in 80-pin Millipaq package
FUNCTIONALBLOCKDIAGRAM
A0
C0
A4
C4
B0
A3
D0
C3
B4
A7
D4
C7
B3
D3
B7
D7
BX1
BE1
BX2
BE2
A8
C8
A12
C12
B8
D8
B12
A15
D12
C15
A11
C11
B11
D11
B15
D15
BX3
BE3
BX4
BE4
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
NOVEMBER 1999
1
c
1999 Integrated Device Technology, Inc.
DSC-5573/1
IDTQS34X383
HIGH-SPEED32-BITBUSEXCHANGESWITCH
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)
VTERM
1
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
V CC
D3
BE1
C0
(3)
VTERM
V
2
(3)
VTERM
DC Input Voltage VIN
V
3
A0
B3
VAC
AC Input Voltage (pulse width ≤ 20ns)
DC Output Current
V
4
B0
A3
IOUT
PMAX
TSTG
120
mA
W
5
D0
C3
Maximum Power Dissipation (TA = 85°C)
Storage Temperature
1.4
6
C1
D2
–65 to +150
°C
7
A1
B2
NOTE:
8
B1
A2
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.
9
D1
C2
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
GND
BE2
C4
BX1
V CC
D7
2. Vcc terminals.
3. All terminals except Vcc.
A4
B7
B4
A7
CAPACITANCE
D4
C7
(TA = +25°C, f = 1.0MHZ, VIN = 0V, VOUT = 0V)
C5
D6
Max.(1)
Unit
pF
A5
B6
Pins
B5
A6
Control Pins
8
8
D5
C6
Quickswitch Channels (Switch OFF)
pF
GND
BE3
C8
BX2
V CC
D11
B11
A11
C11
D10
B10
A10
C10
BX3
V CC
D15
B15
A15
C15
D14
B14
A14
C14
BX4
NOTE:
1. This parameter is measured at characterization but not tested.
A8
B8
PINDESCRIPTION
D8
Pin Names
Ax, Bx
Cx, Dx
BEx
I/O
I/O
I/O
I
Description
C9
Buses A, B
Buses C, D
A9
B9
Bus Switch Enable
Bus Exchange
D9
BXx
I
GND
BE4
C12
A12
B12
D12
C13
A13
B13
D13
GND
FUNCTIONTABLE(1)
BEx
BXx
Ax
Bx
Z
Function
H
X
Z
Disconnect
Connect
L
L
C x
Dx
Dx
C x
L
H
Exchange
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance
MILLIPAQ
TOP VIEW
2
IDTQS34X383
HIGH-SPEED32-BITBUSEXCHANGESWITCH
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, Control Inputs
Min.
2
Typ.(1)
—
Max.
—
Unit
V
VIL
Input LOW Level
—
—
—
—
—
—
0.8
±5
±5
8
V
IIN
Input LeakageCurrent (Control Inputs)
Off-State Output Current (Hi-Z)
Switch ON Resistance(2,3)
—
µA
µA
Ω
IOZ
0V ≤ VOUT ≤ VCC, Switches OFF
—
RON
VCC = Min., VIN = 0V, ION = 30mA
VCC = Min., VIN = 2.4V, ION =15mA
6
12
17
NOTES:
1. Typical values are at VCC = 5.0V, TA = 25°C.
2. Max value of RON is guaranteed but not production tested.
3. Measures by voltage drop between the AB and CD pin at the indicated current through the switch. ON resistance is determined by the lower of the voltages on the two
(A or B, C or D) pins.
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
IDTQS34X383
HIGH-SPEED32-BITBUSEXCHANGESWITCH
INDUSTRIALTEMPERATURERANGE
POWERSUPPLYCHARACTERISTICS
Symbol
ICCQ
Parameter
TestConditions(1)
VCC = Max., BEx = GND or Vcc, f = 0
VCC = Max., BEx = 3.4V, f = 0
Max.
6
Unit
mA
Quiescent Power Supply Current
Power Supply Current per Control Input HIGH (2)
Dynamic Power Supply Current per MHz(3)
∆ICC
2.5
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-D 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(2,3)
—
—
0.25
ns
tPHL
AxBx to CxDx, CxDx to AxBx
SwitchTurn-onDelay
tPZL
1.5
1.5
1.5
—
—
—
6.5
5.5
6.5
—
ns
ns
ns
pC
tPZH
tPLZ
BEx to Ax, Bx, Cx, Dx
SwitchTurn-offDelay(2)
BEx to Ax, Bx, Cx, Dx
Switch Multiplex Delay (2)
BX to Ax, Bx, Cx, Dx
ChargeInjection(4,5)
tPHZ
tBX
—
QCI
1.5
NOTES:
1. Minimums are guaranteed but not production tested.
2. This parameter is guaranteed but not production 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. Measured at switch turn off, A to C, load = 50pF in parallel with 10 meg scope probe, VIN at I = 0V.
5. Measured at switch turn off through bus multiplexer, A to C ≥ A to D, B connected to C, load = 50pF in parallel with 10 meg scope probe, VIN at A = 0V. Charge injection
is reduced because the injection from the turn off of the A to C switch is compensated by the turn on of the B to C switch.
4
IDTQS34X383
HIGH-SPEED32-BITBUSEXCHANGESWITCH
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
XX
IDTQS
XXXXX
X
Package
Process
Device Type
Industrial (-40°C to +85°C)
Blank
Q3
150 mil MillipaQ
34X383
High Speed 32-Bit Bus Exchange Switch in MillipaQ
CORPORATE HEADQUARTERS
2975StenderWay
Santa Clara, CA 95054
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
for Tech Support:
logichelp@idt.com
(408) 654-6459
www.idt.com
5
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