QS3244QG Integrated Device Technology (Idt), QS3244QG Datasheet - Page 4

• Manufacturer Part Number: QS3244QG
• Description: Bus Switch 2-Element 4-IN 20-Pin QSOP Tube
• Manufacturer: Integrated Device Technology (Idt)

Specifications of QS3244QG

• Package: 20QSOP
• Configuration: 4 x 1:1
• Logic Function: Bus Switch
• Number Of Elements Per Chip: 2
• Number Of Outputs Per Chip: 8
• Typical Operating Supply Voltage: 5 V
• Maximum On Resistance: 10(Typ) Ohm
• Maximum High Level Output Current: -120 mA
• Maximum Low Level Output Current: 120 mA
• Maximum Operating Supply Voltage: 5.25 V
• Minimum Operating Supply Voltage: 4.75 V
• Maximum Propagation Delay Time @ Maximum Cl: 0.25@5V ns

NOTES:
1. Minimums are guaranteed but not production tested.
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
POWER SUPPLY CHARACTERISTICS
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TTL-driven input (V
3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A and Y inputs generate no significant
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
T
C
IDTQS3244
HIGH-SPEED CMOS QUICKSWITCH 8-BIT BUS SWITCH
A
LOAD
Symbol
Symbol
= -40°C to +85°C, V
is of the order of 0.25ns at C
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.
AC or DC currents as they transition. This parameter is guaranteed but not production tested.
ΔI
I
I
t
t
t
t
t
t
CCQ
CCD
PZH
PHZ
PLH
PHL
PZL
PLZ
CC
= 50pF, R
Quiescent Power Supply Current
Power Supply Current per Control Input HIGH
Dynamic Power Supply Current per MHz
LOAD
Parameter
Data Propagation Delay
Ax to Yx
Switch Turn-On Delay
1G, 2G to Yx
Switch Turn-Off Delay
1G, 2G to Yx
= 500Ω unless otherwise noted.
IN
CC
Parameter
= 3.4V, control inputs only). A and Y pins do not contribute to ΔIcc.
= 5V ± 5%
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
(2)
(2)
(3)
(2)
V
V
V
CC
CC
CC
= Max., V
= Max., V
= Max., A and Y Pins Open, Control Inputs Toggling @ 50% Duty Cycle
IN
IN
4
= GND or V
= 3.4V, f = 0
Min
⎯
0.5
0.5
.
(1)
Test Conditions
CC
, f = 0
(1)
Typ.
⎯
⎯
⎯
INDUSTRIAL TEMPERATURE RANGE
0.25
Max.
5.6
5.2
(3)
Max.
0.25
2.5
3
Unit
mA/MHz
ns
ns
ns
Unit
mA
μA