2.5V / 3.3V 24-BIT BUS EXCHANGE HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
2.5V / 3.3V 24-BIT BUS
EXCHANGE HIGH BANDWIDTH
BUS SWITCH
• N channel FET switches with no parasitic diode to Vcc
−
Isolation under power-off conditions
−
No DC path to Vcc or GND
−
5V tolerant in OFF and ON state
• 5V tolerant I/Os
• Low R
ON
- 4Ω typical
Ω
• Flat R
ON
characteristics over operating range
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent R
ON
matching between channels
• Vcc operation: 2.3V to 3.6V
• High bandwidth - up to 500 MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in SSOP and TSSOP packages
IDTQS3VH16212
FEATURES:
DESCRIPTION:
The QS3VH16212 Bus Exchange HotSwitch with 24-bits is a high
bandwidth bus switch. The QS3VH16212 has very low ON resistance,
resulting in under 250ps propagation delay through the switch. The device
operates as a 24-bit bus switch or a 12-bit bus exchanger, which provides
data exchanging between the four signal ports through the data-select (S
0
- S
2
) terminals. 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 near-zero propagation delay, high OFF impedance,
and over-voltage tolerance makes the QS3VH16212 ideal for high perfor-
mance communications applications.
The QS3VH16212 is characterized for operation from -40°C to +85°C.
APPLICATIONS:
•
•
•
•
•
Hot-swapping
10/100 Base-T, Ethernet LAN switch
Low distortion analog switch
Replaces mechanical relay
ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
1 of 12 Channels
1A1
1B1
1A2
1B2
Flow Control
S0
S1
S2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c
2002 Integrated Device Technology, Inc.
MARCH 2002
DSC-5884/5
IDTQS3VH16212
2.5V / 3.3V 24-BIT BUS EXCHANGE HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
S0
1A1
1A2
2A1
2A2
3A1
3A2
GND
4A1
4A2
5A1
5A2
6A1
6A2
7A1
7A2
V
CC
8A1
GND
8A2
9A1
9A2
10A1
10A2
11A1
11A2
12A1
12A2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
SSOP/ TSSOP
TOP VIEW
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Description
Supply Voltage to Ground
DC Switch Voltage V
S
DC Input Voltage V
IN
AC Input Voltage (pulse width
≤20ns)
DC Output Current (max. current/pin)
Storage Temperature
Max.
– 0.5 to 4.6
– 0.5 to 5.5
– 0.5 to 5.5
–3
120
-65 to +150
Unit
V
V
V
V
mA
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
S1
S2
1B1
1B2
2B1
2B2
3B1
GND
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
GND
8B2
9B1
9B2
10B1
10B2
11B1
11B2
12B1
12B2
V
TERM(2)
V
TERM(3)
V
TERM(3)
V
AC
I
OUT
T
STG
°
C
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
Symbol
C
IN
C
I/O
C
I/O
Parameter
(1)
Control Inputs
(T
A
= +25 C, f = 1MHz, V
IN
= 0V, V
OUT
= 0V)
Typ.
3
6
12
Max.
5
8
16
Unit
pF
pF
pF
o
Quickswitch Channels (Switch OFF)
Quickswitch Channels (Switch ON)
NOTE:
1. This parameter is guaranteed but not production tested.
PIN DESCRIPTION
Pin Names
1
Ax
1
Bx
I/O
I/O
I/O
I
Bus A
Bus B
Description
-
-
12
Ax
12
Bx
S
0
- S
2
Data Select
FUNCTION TABLE
(1)
S
2
L
L
L
L
H
H
H
H
S
1
L
L
H
H
L
L
H
H
S
0
L
H
L
H
L
H
L
H
xA
1
Z
xB
1
xB
2
Z
Z
Z
xB
1
xB
2
xA
2
Z
Z
Z
xB
1
xB
2
Z
xB
2
xB
1
Function
Disconnect
xA
1
to xB
1
xA
1
to xB
2
xA
2
to xB
1
xA
2
to xB
2
Disconnect
xA
1
to xB
1
, xA
2
to xB
2
xA
1
to xB
2
, xA
2
to xB
1
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High-Impedence
2
IDTQS3VH16212
2.5V / 3.3V 24-BIT BUS EXCHANGE HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
(1)
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
I
OFF
R
ON
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Leakage Current (Control Inputs)
Off-State Current (Hi-Z)
Data Input/Output Power Off Leakage
Switch ON Resistance
Test Conditions
Guaranteed Logic HIGH
for Control Inputs
Guaranteed Logic HIGH
for Control Inputs
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
Min.
1.7
2
—
—
—
—
—
I
ON
= 30mA
I
ON
= 15mA
I
ON
= 30mA
I
ON
= 15mA
—
—
—
—
Typ.
(1)
—
—
—
—
—
—
—
6
7
4
5
Max.
—
—
0.7
0.8
±1
±1
±1
8
9
6
8
Ω
µA
µA
µA
V
Unit
V
≤
V
CC
0V
≤
V
OUT
≤
5V, Switches OFF
V
IN
or V
OUT
0V to 5V, V
CC
= 0V
V
CC
= 2.3V
V
CC
= 3V
V
IN
= 0V
V
IN
= 0V
V
IN
= 2.4V
(Typ. at V
CC
= 2.5V) V
IN
= 1.7V
0V
≤
V
IN
NOTE:
1. Typical values are at V
CC
= 3.3V and T
A
= 25°C, unless otherwise noted.
TYPICAL ON RESISTANCE vs V
IN
AT V
CC
= 3.3V
16
R
ON
(ohms)
14
12
10
8
6
4
2
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V
IN
(Volts)
3
IDTQS3VH16212
2.5V / 3.3V 24-BIT BUS EXCHANGE HIGH BANDWIDTH BUS SWITCH
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
(4)
Test Conditions
(1)
V
CC
= Max., V
IN
= GND or V
CC
, f = 0
V
CC
= Max., V
IN
= 3V, f = 0 per Control Input
V
CC
= 3.3V, A and B Pins Open, Control Inputs
Toggling @ 50% Duty Cycle
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per input driven at the specified level. 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.
Min.
—
—
Typ.
1.5
—
Max.
3
30
Unit
mA
µA
See Typical I
CCD
vs Enable Frequency graph below
TYPICAL I
CCD
vs ENABLE FREQUENCY CURVE AT V
CC
= 3.3V
20
18
16
14
I
CCD
(mA)
12
10
8
6
4
2
0
0
2
4
6
8
10
12
14
16
18
20
ENABLE FREQUENCY (MHz)
4
IDTQS3VH16212
2.5V / 3.3V 24-BIT BUS EXCHANGE HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
T
A
= -40°C to +85°C
V
CC
= 2.5 ± 0.2V
(1)
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PSX
f
Sx
Parameter
Data Propagation Delay
(2,3)
xAx to xBx or xBx to xAx
Switch Turn-On Delay
Sx to xAx, xBx
Switch Turn-Off Delay
Sx to xAx, xBx
Propagation Delay
Sx to xAx, xBx
Operating Frequency - Enable
(2,5)
1.5
1.5
1.5
⎯
11.5
11
11
10
1.5
1.5
1.5
⎯
11
10.5
9
20
ns
ns
ns
MHz
Min
.
(4)
⎯
Max.
V
CC
= 3.3 ± 0.3V
(1)
Min
.
(4)
⎯
Max.
Unit
ns
0.2
0.2
NOTES:
1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS.
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 0.2ns 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.
4. Minimums are guaranteed but not production tested.
5. Maximum toggle frequency for Sx control input (pass voltage > V
Is there any expert who can guide me in designing some detection circuits for automotive power supplies? I am doing my graduation project and I need some guidance....
Anlu's development board is equipped with a USB2UART module, which is connected to the USB-to-serial port through the microcontroller on the board. It is not possible to open the built-in routine 6_ua...
I read the one-stage, two-stage, and three-stage formulas in the book. The one-stage formula can make me understand that the current input controls the output. But the two-stage and three-stage formul...
Dear experts! I am new to single-chip C language programming. When I use 430F168 to process data, I use the arc sine function in the math function library. How much space does this library function ta...
The main task of various amplifier circuits is to obtain the largest possible unrealistic voltage signal on the load, and their main indicator is the voltage amplification factor. The main task of the...
Dual-mode inverters can operate both in conjunction with the grid and independently. These inverters can inject excess energy from renewable energy and storage devices into the grid, and withdraw p...[Details]
Most of the houses we live in now are elevator buildings, mainly because it is more convenient to go up and down the stairs! It can also make life more comfortable. It even helps to increase the ad...[Details]
"Have you set your calendar reminder?"
On August 24, Nvidia Robotics' official account posted a photo of a black gift box on a social media platform, with an attached greeting card sig...[Details]
The most significant feature of IPS panels is that both electrodes are located on the same surface, unlike other LCD panels, which have electrodes arranged on top and bottom surfaces in a three-dim...[Details]
summary
There are multiple approaches to making industrial systems more intelligent, including applying artificial intelligence (AI) technology at the edge and in the cloud to sensor...[Details]
Robotics
has become
LiDAR
's "second growth curve."
While LiDAR was still battling with its "pure vision" rivals in the automotive field, another field ignited the demand f...[Details]
On August 18th, Galaxis, a specialist in integrated intelligent intralogistics robotics, officially unveiled its next-generation, ultra-narrow aisle forklift mobile robot, the "VFR Ultra-Narrow Ser...[Details]
The all-new MG4 was recently officially announced on the Ministry of Industry and Information Technology's (MIIT) new vehicle announcement. The all-new MG4's semi-solid-state battery version addres...[Details]
On August 22, according to the Ministry of Industry and Information Technology's official website, my country's first mandatory national standard for the control of hazardous substances in electric...[Details]
Tires are a very important component for cars. They are related to the driving experience of the vehicle. We are almost inseparable from cars in our daily lives. For tires, according to the role of...[Details]
With the increasing number of new energy vehicles on the road, the deployment of supporting facilities for these vehicles has accelerated, and new energy vehicles have gradually entered the vision ...[Details]
A half-bridge is an inverter topology for converting DC to AC. A typical half-bridge circuit consists of two controller switches, a three-wire DC power supply, two feedback diodes, and two capacito...[Details]
Reflow soldering is one of the most commonly used methods in electronics manufacturing, allowing for the soldering of large numbers of components in a relatively short time. However, any experience...[Details]
Industrial computers with GPUs leverage powerful parallel processing to build deep learning models to analyze and respond to optical inputs. The systems develop an understanding of visual data to i...[Details]
Chinese characters are extensive and profound, and there are many different names for ESD tubes. How many of them do you know?
As far as I know, ESD diodes are currently known as ESD p...[Details]
Automotive Electronics
京公网安备 11010802033920号
EEWORLD
