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QS3VH245QG8

P1-P3P4-P6P7-P8
4
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH245
2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH
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 ΔIcc.
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.
POWER SUPPLY CHARACTERISTICS
Symbol Parameter Test Conditions
(1)
Min. Typ. Max. Unit
ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or VCC, f = 0 — 2 4 mA
ΔICC Power Supply Current
(2,3)
per Input HIGH VCC = Max., VIN = 3V, f = 0 per Control Input — — 30 μA
ICCD Dynamic Power Supply Current
(4)
VCC = 3.3V, A and B Pins Open, Control Inputs See Typical ICCD vs Enable Frequency graph below
Toggling @ 50% Duty Cycle
TYPICAL I
CCD
vs ENABLE FREQUENCY CURVE AT V
CC
= 3.3V
0
2
4
6
8
10
12
0 2 4 6 8 101214161820
ICCD (mA)
ENABLE FREQUENCY (MHZ)
5
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH245
2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C
VCC = 2.5 ± 0.2V
(1)
VCC = 3.3 ± 0.3V
(1)
Symbol Parameter Min.
(4)
Max. Min.
(4)
Max. Unit
t
PLH Data Propagation Delay
(2,3)
⎯ 0.2 ⎯ 0.2 ns
tPHL Ax to/from Bx
t
PZL Switch Turn-On Delay 1.5 8 1.5 7 ns
tPZH OE to Ax/Bx
t
PLZ Switch Turn-Off Delay 1.5 7 1.5 6.5 ns
tPHZ OE to Ax/Bx
f
OE Operating Frequency - Enable
(2,5)
⎯ 10 ⎯ 20 MHz
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 CL = 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 OE control input (pass voltage > VCC, VIN = 5V, RLOAD ≥ 1MΩ, no CLOAD).
6
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH245
2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH
PHY
3VH
SWITCH
4.5VPP
LOGIC
SIDE
Z = 100 Ω
10Mbps to 100Mbps
2V
PP
4.5VPP
LOGIC
SIDE
Z = 100 Ω
TWISTED PAIR
>100m
CHARGE PUMP
OE
Vcc = 3.3V
0 to +5V
NFET
+6.5V
DRIVER
0 to +5V
SINGLE HOT
SWITCH
CARD I/O
ON CARD
LOGIC
CONNECTOR
QS3VHXXX
CPU
RAM
BUS
CARD I/O
ON CARD
LOGIC
CONNECTOR
QS3VHXXX
PLUGGABLE CARD/ LIVE SYSTEM
ZERO DOWN TIME SYSTEM
Rail-to-Rail Switching
SOME APPLICATIONS FOR HOTSWITCH PRODUCTS
Fast Ethernet Data Switching (LAN Switch)
Hot-Swapping
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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