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QS3VH245QG8

P1-P3P4-P6P7-P8
1
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH245
2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH
2014 Integrated Device Technology, Inc. DSC-5775/10c
IDTQS3VH245
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
2.5V / 3.3V 8-BIT HIGH
BANDWIDTH BUS SWITCH
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
The QS3VH245 HotSwitch 8-bit bus switch is a high bandwidth bus
switch. The QS3VH245 has very low ON resistance, resulting in under
250ps propagation delay through the switch. 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 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 QS3VH245 ideal forhigh perfor-
mance communications applications.
The QS3VH245 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
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
• Bus switching and isolation
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
B0
OE
A0
B1
A1
B2
A2
B3
A3
B4
A4
B5
A5
B6
A6
B7
A7
FEBRUARY 2014
2
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH245
2.5V / 3.3V 8-BIT 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
CI/O Quickswitch Channels (Switch OFF) 4 6 pF
C
I/O Quickswitch Channels (Switch ON) 8 12 pF
CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT =
0V)
NOTE:
1. This parameter is guaranteed but not production tested.
Pin Names Description
OE Output Enable
Ax Data I/Os
Bx Data I/Os
PIN DESCRIPTION
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
OE Outputs
H Disconnected
L Ax = Bx
FUNCTION TABLE
(1)
QSOP/ SOIC/ TSSOP
TOP VIEW
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
A
0
A1
A2
A3
A4
A5
A6
A7
GND
V
CC
OE
B
0
B1
B2
B3
B4
B5
B6
B7
3
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH245
2.5V / 3.3V 8-BIT 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

QS3VH245QG8

Mfr. #:
Buy QS3VH245QG8
Manufacturer:
IDT
Description:
Digital Bus Switch ICs 3.3V 8-bit Switch Hot Swap Apps
Lifecycle:
New from this manufacturer.
Delivery:
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