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VS3245 の電気的特性と機能

VS3245のメーカーはVaishali Semiconductorです、この部品の機能は「High Speed CMOS VSwitch 8-Bit Bus Switches」です。


製品の詳細 ( Datasheet PDF )

部品番号 VS3245
部品説明 High Speed CMOS VSwitch 8-Bit Bus Switches
メーカ Vaishali Semiconductor
ロゴ Vaishali Semiconductor ロゴ 




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VS3245 Datasheet, VS3245 PDF,ピン配置, 機能
VS3245 / VS32245
High Speed CMOS VSwitch
8-Bit Bus Switches
Applications
= 5V to 3.3V translation in mixed-supply environment
= Hot-swap interface
= Logic replacement
= Bus isolation
General Description
The VS3245 and VS32245 are high-speed TTL–compatible 8-bit bus switches. The VS3245 contains eight
high-speed bus switches, with a common active low enable (/OE). The low ON resistance of the VS3245
allows inputs to be connected to outputs, without adding propagation delay and without generating additional
signal noise. The VS32245 has 25resistors in series with the switches to reduce ground-bounce noise and
signal reflection.
The VS3245 and VS32245 bus switches are function and pinout compatible with QS3245 and CBT3245
switches. They enable 5V to 3.3V translation when used with a diode in the power supply line. In addition,
the high off-isolation in the ‘disable’ mode makes VS3245 and VS32245 ideal interface elements for hot-swap
applications.
Features
= Enhanced N-FET with no DC path to VCC
or GND in normal operating signal voltage
range.
= Low impedance bidirectional data flow:
5(VS3245) and 25(VS32245)
= Pin-compatible with QS3245 and CBT3245
switches.
= Near-zero propagation delay
= Zero added ground bounce or signal noise
= TTL-compatible control signals
= Undershoot clamp diodes on all switch and
control pins
= ESD rating >2000V (Human Body Model)
or >200V (Machine Model)
= Latch-up current >100mA
= Available in 150-mil wide QSOP package
Figure 1. Functional Block Diagram
Figure 2. Pin Configuration
(All Pins Top View)
A0 A1 A2 A3 A4 A5 A6 A7
QSOP
/OE
B0 B1 B2 B3 B4 B5 B6 B7
NC
A0
A1
A2
A3
A4
A5
A6
A7
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 /OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
2001-04-12
Page 1
MDSS-0007-02
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063

1 Page





VS3245 pdf, ピン配列
VS3245/VS32245
Table 5. Recommended Operating Conditions
Symbol
VCC
VIL
VIH
TA
Parameter
Power supply voltage
Low level input voltage
High level input voltage
Operating free-air temperature
Conditions
Min Typ Max Units
4.5 5.5 V
-0.5 0.8 V
2.0 5.5 V
-40 85 oC
Table 6. Electrical Characteristics Over Recommended Operating Free-air Temperature Range
Symbol
Parameter
VIK Clamp Voltage
Control Input
Switch I/O
Test Conditions
VCC = Min, IIK = -18 mA
Min Typ(1) Max
-1.5
-1.5
VOH Logic High Voltage Switch I/O VIN = VCC = 5V, IOUT = -5µA 3.7 3.9 4.1
VCC = 4.3V, VN = 5V,
3.0 3.3 3.6
IOUT = -5µA
II
Input Leakage
Control Input VCC = Max, VI = VCC or GND
Current
1
|OFF| Power OFF Leakage Control Input VCC = 0,
Current
Switch I/O
VI or VO = VCC or GND
1
|IOZ|
OFF State Leakage Switch I/O
VCC = Max, VI/O = VCC,
Current
/OE = VCC
1
IODL Switch I/O Drive VCC = Min, VIN = 0,
Current (Logic LOW) VOUT = 0.4V
VS3245
VS32245
50
IODH Switch I/O Drive VCC = Min, VIN = VCC,
Current (Logic HIGH) VOUT = 2.4V
VS3245
VS32245
-50
RON Switch ON
Resistance(2)
VCC = Min, VIN = 0,
IOUT = 30mA
VS3245
VS32245
57
20 28 40
Notes:
1. Typical values are specified at VCC = 5.0V and TA = 25oC.
2. RON is measured by forcing specified current into the ‘output’ node of the switch with the ‘input’ node of the switch at the the
specified voltage
Units
V
V
µA
µA
µA
mA
mA
mA
mA
Table 7. Power Supply Characteristics Over Recommended Operating Free-air Temperature Range
Symbol
Parameter
Test Conditions (1)
Max Units
ICCQ
Quiescent Power Supply Current
VCC = Max, /OE = VCC or GND, f = 0
1 µA
ICC
QCCD
Power Supply Current per Input High
(Control Input) (2)
Dynamic Power Supply Current (3)
VCC = Max, VIN = 3.4V, f = 0
VCC = Max, Switch pins open,
Control Inputs toggling at 50% duty cycle
1.5 mA
0.25 mA/MHz
Notes:
1. For conditions shown as Min or Max, use the appropriate values per Recommended Operating Conditions.
2. Per TTL-driven control input. All other control inputs at GND. Switch I/O pins do not contribute to ICC.
3. This parameter represents the average DC current resulting from the switching of internal nodes of the device at a given
frequency. The switch I/O pins make insignificant contribution to the dynamic power supply current of the device. This parameter
is guaranteed, but not production tested.
2001-04-12
Page 3
MDSS-0007-02
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063


3Pages


VS3245 電子部品, 半導体
VS3245/VS32245
Switching Waveforms
Input
Switch Output
tPLH
tPHL
3.0 V
1.5 V
0V
VOH
1.5 V
VOL
Propagation Delay
Control Input
tPHZ
Switch Output
(Switch Input = 3.0 V)
Switch Output
(Switch Input = 0 V)
tPLZ
Switch ON
0.3 V
0.3 V
Switch OFF
tPZH
3.0 V
1.5 V
0V
VOH
1.5 V
0V
tPZL
3.5 V
1.5 V
VOL
Switch ON
Enable and Disable Times
Ordering Information
Part Number
VS3245Q
VS3245QX
VS32245Q
VS32245QX
Marking
VS3245Q
VS3245Q
VS32245Q
VS32245Q
Shipping/Packaging
Tubes
Tape & Reel
Tubes
Tape & Reel
No. of Pins
20
20
20
20
Package
QSOP
QSOP
QSOP
QSOP
Temperature
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
2001-04-12
Page 6
MDSS-0007-02
www.vaishali.com
Vaishali Semiconductor 747 Camden Avenue, Suite C Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063

6 Page



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共有リンク

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部品番号部品説明メーカ
VS3244

High Speed CMOS VSwitch Dual 4-Bit Bus Switches

Vaishali Semiconductor
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VS3244Q

High Speed CMOS VSwitch Dual 4-Bit Bus Switches

Vaishali Semiconductor
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VS3244QX

High Speed CMOS VSwitch Dual 4-Bit Bus Switches

Vaishali Semiconductor
Vaishali Semiconductor
VS3245

High Speed CMOS VSwitch 8-Bit Bus Switches

Vaishali Semiconductor
Vaishali Semiconductor


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