IDTQS32861SO [IDT]
QUICKSWITCH PRODUCTS HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT; 与流通引脚排列快速切换产品高速CMOS 10位总线开关
| 型号： | IDTQS32861SO |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | QUICKSWITCH PRODUCTS HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT |
| 文件： | 总5页 (文件大小：41K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
QUICKSWITCH® PRODUCTS
HIGH-SPEED CMOS
IDTQS32861
10-BIT BUS SWITCH WITH
FLOW-THROUGH PINOUT
ꢀEATURES:
• Enhanced N channel FET with no inherent diode to Vcc
• Near zero ground bounce
• Undershoot clamp diodes on all switch and control inputs
• Available in QSOP and SOIC packages
DESCRIPTION:
The QS32861provides a setoftenhighspeedCMOS,TTL-compatible
bus switches. The Bus Enable (BE) signal turns the switches on. The
QS32861 includes internal 25Ω series termination resistors to reduce
reflectionnoiseinhighspeedapplications.Whenclosed,theswitchactsas
the source (series)terminationforthe driverconnectedtoit.
The QS32861 is characterized for operation at -40°C to +85°C.
APPLICATIONS:
• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Power conservation
• Capacitance reduction and isolation
• Clock gating
• Bus isolation
ꢀUNCTIONALBLOCKDIAGRAM
A0
B0
B9
A9
BE
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
MARCH 2002
1
c
2002 Integrated Device Technology, Inc.
DSC-5757/2
IDTQS32861
HIGH-SPEEDCMOS10-BITBUSSWITCHWITHFLOW-THROUGHPINOUT
INDUSTRIALTEMPERATURERANGE
ABSOLUTEMAXIMUMRATINGS(1)
PINCONꢀIGURATION
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
(3)
NC
A0
1
24
23
22
21
20
19
18
17
16
15
14
13
VCC
VTERM
V
(3)
VTERM
DC Input Voltage VIN
V
2
BE
B0
VAC
AC Input Voltage (pulse width ≤ 20ns)
DC Output Current
V
A1
A2
A3
A4
A5
A6
A7
A8
3
IOUT
PMAX
TSTG
120
mA
W
° C
B1
B2
B3
B4
B5
B6
B7
B8
B9
4
Maximum Power Dissipation (TA = 85°C)
Storage Temperature
0.5
5
–65 to +150
6
NOTE:
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.
7
8
9
2. Vcc terminals.
3. All terminals except Vcc.
10
11
12
A9
GND
CAPACITANCE
(TA = +25°C, f = 1.0MHZ, VIN = 0V, VOUT = 0V)
QSOP/ SOIC
TOP VIEW
Pins
Typ.
3
Max.(1)
Unit
pF
ControlPins
5
7
Quickswitch Channels (Switch OFF)
5
pF
NOTE:
1. This parameter is measured at characterization but not tested.
PINDESCRIPTION
Pin Names
Description
BE
BusEnable
Bus A
A0 - A9
B0 - B9
Bus B
ꢀUNCTIONTABLE(1)
BE
H
A0 - A9
Hi-Z
2A, 2Y I/Os
Disconnect
Connect
L
B0 - B9
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High-Impedance
2
IDTQS32861
HIGH-SPEEDCMOS10-BITBUSSWITCHWITHFLOW-THROUGHPINOUT
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%
Symbol
VIH
Parameter
Input HIGH Level
Input LOW Level
Test Conditions
Guaranteed Logic HIGH for Control Pins
Guaranteed Logic LOW for Control Pins
Min.
2
Typ.(1)
—
Max.
—
Unit
V
VIL
—
—
—
15
—
0.8
±1
±1
35
V
(2)
IIN
Input LeakageCurrent (Control Inputs) 0V ≤ VIN ≤ VCC
±0.01
±0.01
20
µA
µA
Ω
IOZ
Off-State Output Current (Hi-Z)
Switch ON Resistance
0V ≤ VOUT ≤ VCC, Switches OFF
(3)
RON
VCC = Min., VIN = 0V, ION = 30mA
VCC = Min., VIN = 2.4V, ION =15mA
VIN = VCC = 5V, IOUT = -5µA
18
25
40
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.
3. ROUT changed on March 8, 2002. See rear page for more information.
TYPICAL ON RESISTANCE vs VIN AT VCC = 5V
80
RON
(ohms)
70
60
50
40
30
20
10
0
1.5
2.0
2.5
3.0
3.5
1.0
0.0
0.5
VIN
(Volts)
3
IDTQS32861
HIGH-SPEEDCMOS10-BITBUSSWITCHWITHFLOW-THROUGHPINOUT
INDUSTRIALTEMPERATURERANGE
POWERSUPPLYCHARACTERISTICS
Parameter
Symbol
TestConditions(1)
Typ(2)
0.2
Max.
3
Unit
µA
ICCQ
QuiescentPowerSupplyCurrent
Power Supply Current per Control Input HIGH
Dynamic Power Supply Current per MHz(4)
VCC = Max., VIN = GND or Vcc, f = 0
(3)
∆ICC
VCC = Max., VIN = 3.4V , f = 0
—
2.5
0.25
mA
ICCD
VCC = Max., A and B pins open
—
mA/MHz
BE 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. Typical values are at VCC = 5.0V, 25°C ambient.
3. Per TLL driven input (VIN = 3.4V, control inputs only). A and B pins do not contribute to ∆Icc.
4. 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 pins 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.
1.25(3)
Unit
DataPropagationDelay(2,4)
A to B or B to A
—
—
ns
tPHL
tPZH
SwitchTurn-onDelay
BE to A or B
SwitchTurn-offDelay(2)
1.5
1.5
—
—
7.5
5.5
ns
ns
tPZL
tPHZ
tPLZ
BE to A or B
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 1.25ns 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
IDTQS32861
HIGH-SPEEDCMOS10-BITBUSSWITCHWITHFLOW-THROUGHPINOUT
INDUSTRIALTEMPERATURERANGE
ORDERINGINꢀORMATION
XX
IDTQS
XXXXX
X
Package
Process
Device Type
Industrial (-40°C to +85°C)
Blank
SO
Q
Small Outline IC
Quarter-Size Outline Package
High Speed CMOS 10-Bit Bus Switch with
Flow-Through Pinout
32861
As per PCN L0201-02, the Output Resistance (RON) specifications have changed as of March 8, 2002. The original specifications were:
Parameter
Description
Min.
20
Typ.
28
Max.
40
Unit
RON
VCC = Min, VIN = 0V, ION = 30mA
VCC = Min, VIN = 2.4V, ION = 15mA
Ω
20
35
48
CORPORATE HEADQUARTERS
for SALES:
for Tech Support:
2975StenderWay
Santa Clara, CA 95054
800-345-7015 or 408-727-6116
fax: 408-492-8674
logichelp@idt.com
(408) 654-6459
www.idt.com
5
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