Bus Driver, 1-Func, 8-Bit, True Output, PDSO20, SOIC-20
IDTQS3VH2245SO8规格参数
参数名称
属性值
是否无铅
含铅
是否Rohs认证
不符合
厂商名称
IDT (Integrated Device Technology)
零件包装代码
SOIC
包装说明
SOP,
针数
20
Reach Compliance Code
compliant
JESD-30 代码
R-PDSO-G20
JESD-609代码
e0
长度
12.8 mm
逻辑集成电路类型
BUS DRIVER
位数
8
功能数量
1
端口数量
2
端子数量
20
最高工作温度
85 °C
最低工作温度
-40 °C
输出特性
3-STATE
输出极性
TRUE
封装主体材料
PLASTIC/EPOXY
封装代码
SOP
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE
峰值回流温度（摄氏度）
225
传播延迟（tpd）
1.25 ns
认证状态
Not Qualified
座面最大高度
2.65 mm
最大供电电压 (Vsup)
3.6 V
最小供电电压 (Vsup)
3 V
标称供电电压 (Vsup)
3.3 V
表面贴装
YES
温度等级
INDUSTRIAL
端子面层
Tin/Lead (Sn/Pb)
端子形式
GULL WING
端子节距
1.27 mm
端子位置
DUAL
处于峰值回流温度下的最长时间
30
宽度
7.5 mm
IDTQS3VH2245SO8文档预览
IDTQS3VH2245
3.3V 8-BIT BUS SWITCH FOR HOT SWAP APPLICATIONS
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
3.3V 8-BIT BUS SWITCH FOR
HOT SWAP APPLICATIONS
(HOT SWITCH™)
FEATURES:
DESCRIPTION:
IDTQS3VH2245
• N channel FET switches with no parasitic diode to V
CC
– No DC path to V
CC
or GND
– 5V tolerant in OFF and ON state
• 5V tolerant I/Os
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Flat R
ON
characteristics from 0 - 5V
• Rail-to-rail switching 0 - 5V
• Excellent R
ON
matching between channels
• V
CC
operation: 2.3V to 3.6V
• Maximum operating frequency for data - 150MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• 25Ω resistors for low noise and line matching
Ω
• Available in QSOP and SOIC packages
The QS3VH2245 Hotswitch 8-bit bus switch is specially designed for a hot-
swapping environment. The QS3VH2245, with 25Ω ON resistance and
1.25ns propagation delay, is ideal for line matching and low noise environments.
The switches can be turned ON under the control of the LVTTL-compatible
Output Enable signal for bidirectional data flow with no added delay or ground
bounce. In the OFF and ON states, the switches are 5V-tolerant. In the OFF
state, the switches offer very high impedence at the terminals.
The combination of small propagation delay, high OFF impedance, and
over-voltage tolerance makes the QS3VH2245 ideal for high performance
communication applications.
The QS3VH2245 is characterized for operation from -40°C to +85°C.
APPLICATIONS:
•
•
•
•
•
PCI/Compact PCI hot-swapping
10/100 Base-T, ethernet LAN switch
Low distortion analog switch
Replaces mechanical relay
ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
OE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c
2002 Integrated Device Technology, Inc.
AUGUST 2002
DSC-5591/2
IDTQS3VH2245
3.3V 8-BIT BUS SWITCH FOR HOT SWAP APPLICATIONS
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Description
Max
V
TERM
(2)
V
TERM
(3)
SupplyVoltage to Ground
DC Switch Voltage V
S
DC Input Voltage V
IN
AC Input Voltage (pulse width
≤20ns)
DC Output Current
Maximum Power Dissipation
Storage Temperature
–0.5 to +4.6
–0.5 to +5.5
–0.5 to +5.5
–3
120
0.5
–65 to +150
Unit
V
V
V
V
mA
W
°C
NC
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
OE
B
0
B
1
B
2
B
3
B
4
B
5
B
6
B
7
V
TERM
(3)
V
AC
V
OUT
P
MAX
T
STG
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. V
CC
terminals.
3. All terminals except V
CC
.
CAPACITANCE
(T
A
= +25°C, F = 1MHz, V
IN
= 0V, V
OUT
= 0V)
Symbol
C
IN
C
I/O
Parameter
(1)
Control Inputs
Quickswitch Channels (Switch OFF)
Typ.
3
4
Max.
5
6
Unit
pF
pF
QSOP/ SOIC
TOP VIEW
NOTE:
1. This parameter is guaranteed but not production tested.
PIN DESCRIPTION
Pin Names
OE
An
Bn
Output Enable
Data I/Os
Data I/Os
Description
FUNCTION TABLE
(1)
OE
H
L
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Function
Disconnected
An = Bn
2
IDTQS3VH2245
3.3V 8-BIT BUS SWITCH FOR HOT SWAP APPLICATIONS
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= –40°C to +85°C, V
CC
= 3.3V ±0.3V
Symbol
V
IH
V
IL
I
IN
I
OZ
R
ON
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Leakage Current
Off-State Current (Hi-Z)
Switch ON Resistance
Test Conditions
Guaranteed Logic HIGH for Control Inputs
Guaranteed Logic LOW for Control Inputs
0V
≤
OE
≤
V
CC
0V
≤
A, B
≤
V
CC
, Switches OFF
V
CC
= Min, V
IN
= 0V, I
ON
= 30mA
V
CC
= Min, V
IN
= 2.4V, I
ON
= 15mA
NOTE:
1. Typical values are at V
CC
= 3.3V and T
A
= 25°C.
Min.
2
—
—
—
20
20
Typ.
(1)
Max.
—
—
—
—
27
28
—
0.8
±1
±1
40
42
Unit
V
V
µA
µA
Ω
TYPICAL ON RESISTANCE vs V
IN
AT V
CC
= 3.3V
40
R
ON
(ohms)
35
30
25
20
15
10
5
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
V
IN
(Volts)
3
IDTQS3VH2245
3.3V 8-BIT BUS SWITCH FOR HOT SWAP APPLICATIONS
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol
I
CCQ
∆I
CC
I
CCD
Parameter
Quiescent Power Supply Current
Power Supply Current
(2,3)
per Input HIGH
Dynamic Power Supply Current per MHz
(4)
Test Conditions
(1)
V
CC
= Max., V
IN
= GND or V
CC
, f = 0
V
CC
= 3.6V, V
IN
= 3V, f = 0 per Control Input
V
CC
= 3.6V, A and B Pins Open, per Control Input Toggling @ 50% Duty Cycle
Max.
4
30
0.25
Unit
mA
µA
mA/MHz
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per LVTTL-driven-control-input. A and B pins do not contribute to
∆Icc.
3. This parameter is guaranteed but not tested.
4. This parameter represents the current required to switch internal capacitance at the specified frequency. The A and B inputs do not contribute to the Dynamic Power Supply
Current. This parameter is guaranteed but not production tested.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
T
A
= -40°C to +85°C, V
CC
= 3.3V
±
0.3V
C
LOAD
= 50pF, R
LOAD
= 500Ω, unless otherwise noted
Symbol
t
PLH
t
PHL
t
PZL
t
PZH
t
PLZ
t
PHZ
f
S
f
OE
Parameter
Data Propagation Delay
(1,2)
An to/from Bn
Switch Turn-On Delay
OE
to An/Bn
Switch Turn-Off Delay
(1)
OE
to An/Bn
Operating Frequency - Data
(1,4)
OE
= LOW
Operating Frequency - Enable, Select
(1,5)
1
MHz
Min
.
(3)
0.5
0.5
Typ.
Max.
1.25
10
9
150
(6)
Unit
ns
ns
ns
MHz
NOTES:
1. This parameter is 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 1.25ns at C
L
= 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.
3. Minimums are guaranteed but not production tested.
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