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QS3VH257QG8

P1-P3P4-P6P7-P8
1
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH257
2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
FEBRUARY 2014
2014 Integrated Device Technology, Inc. DSC-5596/15c
IDTQS3VH257
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
2.5V/3.3V QUAD 2:1 MUX/DEMUX
HIGH BANDWIDTH BUS SWITCH
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
The QS3VH257 HotSwitch Quad 2:1 multiplexer/demultiplexer is a high
bandwidth bus switch. The QS3VH257 has very low ON resistance,
resulting in under 250ps propagation delay through the switch. The Select
(S) input controls the data flow. The multiplexers/demultiplexers are
enabled when the Enable (E) input is low. In the ON state, the switches can
pass signals up to 5V. 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 QS3VH257 ideal for high perfor-
mance communication applications.
The QS3VH257 is characterized for operation from -40°C to +85°C.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
APPLICATIONS:
• Hot-swapping
• Multiplexing/demultiplexing
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FEATURES:
• 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 RON - 4
ΩΩ
ΩΩ
Ω typical
• Flat RON 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 500MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in QSOP, SOIC, and TSSOP packages
Y
A
B
C
D
I0
A
A
B
B
C
C
D
D
I1
I0
I1
I0
I1
I0
I1
Y
Y
Y
S
E
2
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH257
2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
PIN CONFIGURATION
Symbol Description Max Unit
VTERM
(2)
SupplyVoltage to Ground –0.5 to +4.6 V
VTERM
(3)
DC Switch Voltage VS –0.5 to +5.5 V
VTERM
(3)
DC Input Voltage VIN –0.5 to +5.5 V
VAC AC Input Voltage (pulse width ≤20ns) –3 V
IOUT DC Output Current (max. sink current/pin) 120 mA
T
STG Storage Temperature –65 to +150 °C
ABSOLUTE MAXIMUM RATINGS
(1)
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. VCC terminals.
3. All terminals except V
CC .
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedence
Inputs Outputs
E SYA YB YC YD Function
H X Z Z Z Z Disable
LLI0A I0B I0C I0D Select 0
LHI1
A I1B I1C I1D Select 1
FUNCTION TABLE
(1)
QSOP/ SOIC/ TSSOP
TOP VIEW
1
2
3
4
5
6
7
16
15
14
13
12
11
10
I
0A
I1A
I0B
I1B
GND
V
CC
I0D
I1D
E
I0C
I1C
S
Y
A
YD
8
9
Y
B
YC
Symbol Parameter
(1)
Typ. Max. Unit
CIN Control Inputs 3 5 pF
C
I/O Quickswitch Channels Demux 4 6 pF
(Switch OFF) Mux 7 9
C
I/O Quickswitch Channels Demux 10 15 pF
(Switch ON) Mux 10 15
CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT =
0V)
NOTE:
1. This parameter is guaranteed but not production tested.
Pin Names I/O Description
Ixx I Data Inputs
S I Select Input
E I Enable Input
Y
A - YD O Data Outputs
PIN DESCRIPTION
3
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH257
2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
TYPICAL ON RESISTANCE vs V
IN
AT V
CC
= 3.3V
RON
(ohms)
VIN
(Volts)
16
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 5.04.5
Symbol Parameter Test Conditions Min. Typ.
(1)
Max. Unit
VIH Input HIGH Voltage Guaranteed Logic HIGH VCC = 2.3V to 2.7V 1.7 — — V
for Control Inputs VCC = 2.7V to 3.6V 2 — —
V
IL Input LOW Voltage Guaranteed Logic LOW VCC = 2.3V to 2.7V — — 0.7 V
for Control Inputs VCC = 2.7V to 3.6V — — 0.8
IIN Input Leakage Current (Control Inputs) 0V ≤ VIN ≤ VCC ——±1μA
IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ 5V, Switches OFF — — ±1 μA
IOFF Data Input/Output Power Off Leakage VIN or VOUT 0V to 5V, VCC = 0V — — ±1 μA
V
CC = 2.3V VIN = 0V ION = 30mA — 6 8
R
ON Switch ON Resistance Typical at VCC = 2.5V VIN = 1.7V ION = 15mA — 7 9 Ω
VCC = 3V VIN = 0V ION = 30mA — 4 6
VIN = 2.4V ION = 15mA — 5 8
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 3.3V ±0.3V
NOTE:
1. Typical values are at VCC = 3.3V and TA = 25°C.
P1-P3P4-P6P7-P8

QS3VH257QG8

Mfr. #:
Buy QS3VH257QG8
Manufacturer:
IDT
Description:
Encoders, Decoders, Multiplexers & Demultiplexers 3.3V 4x2:1 Mux/Demux for Hot Swap Applic
Lifecycle:
New from this manufacturer.
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