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QS3VH251PAG8

P1-P3P4-P6P7-P8
1
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH251
2.5V / 3.3V QUAD 8:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
FEBRUARY 2014
2014 Integrated Device Technology, Inc. DSC-5944/11c
IDTQS3VH251
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
2.5V / 3.3V 8:1 MUX / DEMUX
HIGH BANDWIDTH BUS SWITCH
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
The QS3VH251 HotSwitch Quad 2:1 multiplexer/demultiplexer is a high
bandwidth bus switch. The QS3VH251 has very low ON resistance,
resulting in under 250ps propagation delay through the switch. The Select
(Sx) 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 QS3VH251 ideal for high perfor-
mance comminucation applications.
The QS3VH251 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 Demux capacitance, 4pF typical
• Available in QSOP and TSSOP packages
S0
Y
I0
I1
I2
I3
I4
I5
I6
I7
S1
E
S2
2
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH251
2.5V / 3.3V QUAD 8:1 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 .
Symbol Parameter
(1)
Typ. Max. Unit
CIN Control Inputs 3 5 pF
C
I/O Quickswitch Channels Demux 4 6 pF
(Switch OFF) Mux 19 25
C
I/O Quickswitch Channels Demux 20 28 pF
(Switch ON) Mux 20 28
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
I0 - I7 I Data Inputs
S0 - S2 I Select Input
E I Enable Input
Y O Data Outputs
PIN DESCRIPTION
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedence
FUNCTION TABLE
(1)
QSOP/ TSSOP
TOP VIEW
1
2
3
4
5
6
7
16
15
14
13
12
11
10
I
2
I1
Y
NC
GND
V
CC
I5
I6
I4
S0
S1
I3
I0
I7
8
9
E
S
2
Select
E S2 S1 S0 Y Function
H X X X Z Disable
LLLLI0 S2 - S0 = 0
LLLHI1 S2 - S0 = 1
LLHLI2 S2 - S0 = 2
LLHHI3 S2 - S0 = 3
LHLLI4 S2 - S0 = 4
LHLHI5 S2 - S0 = 5
LHHLI6 S2 - S0 = 6
LHHHI
7 S2 - S0 = 7
3
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH251
2.5V / 3.3V QUAD 8:1 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

QS3VH251PAG8

Mfr. #:
Buy QS3VH251PAG8
Manufacturer:
IDT
Description:
Encoders, Decoders, Multiplexers & Demultiplexers 3.3V 8:1 Multiplexer /Demultiplexer
Lifecycle:
New from this manufacturer.
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