QS3245QG Integrated Device Technology (Idt), QS3245QG Datasheet - Page 4

• Manufacturer Part Number: QS3245QG
• Description: Bus Switch 1-Element 8-IN 20-Pin QSOP Tube
• Manufacturer: Integrated Device Technology (Idt)

Specifications of QS3245QG

• Package: 20QSOP
• Configuration: 8 x 1:1
• Logic Function: Bus Switch
• Number Of Elements Per Chip: 1
• 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

POWER SUPPLY CHARACTERISTICS
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TLL 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 B inputs generate no significant
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
T
C
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
IDTQS3245
HIGH-SPEED CMOS QUICKSWITCH 8-BIT BUS SWITCH
A
LOAD
= -40°C to +85°C, V
Symbol
AC or DC currents as they transition. This parameter is guaranteed but not production tested.
is of the order of 0.25ns for C
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.
Symbol
ΔI
I
I
CCQ
CCD
t
t
t
t
t
t
= 50pF, R
PLH
PHL
PZH
PHZ
PZL
PLZ
CC
Data Propagation Delay
An to/from Bn
Switch Turn-on Delay
OE to Ax/Bx
Switch Turn-off Delay
OE to Ax/Bx
LOAD
Parameter
Quiescent Power Supply Current
Power Supply Current per Control Input HIGH
Dynamic Power Supply Current per MHz
= 500Ω unless otherwise noted.
IN
CC
= 3.4V, control inputs only). A and B pins do not contribute to ΔIcc.
= 5.0V ± 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
(2)
(2,3)
Parameter
(3)
(2)
V
V
V
Control Inputs Toggling at 50% Duty Cycle
CC
CC
CC
= Max., V
= Max., V
= Max., A and B pins open
4
Min.
0.5
0.5
—
Test Conditions
IN
IN
(1)
= GND or Vcc, f = 0
= 3.4V, f = 0
(1)
Typ.
—
—
—
INDUSTRIAL TEMPERATURE RANGE
Max.
0.25
1.5
Max.
0.25
3
5.6
4.5
mA/MHz
Unit
Unit
mA
ns
ns
ns
μA