PI3B3244QE Pericom Semiconductor, PI3B3244QE Datasheet - Page 3

• Manufacturer Part Number: PI3B3244QE
• Description: IC 8-BIT BUS SW 2-PORT 20-QSOP
• Manufacturer: Pericom Semiconductor
• Type: Bus Switchr

Specifications of PI3B3244QE

• Circuit: 4 x 1:1
• Independent Circuits: 2
• Voltage Supply Source: Single Supply
• Voltage - Supply: 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output High, Low: -

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V
3. Per TTL driven input (control inputs only); A and B pins do not contribute to I
Switching Characteristics over Operating Range
Notes:
1. See test circuit and waveforms.
2. This parameter is guaranteed but not tested on Propagation Delays.
3. The bus switch contributes no propagational delay other than the RC delay of the ON
Applications Information
Logic Inputs
The logic control inputs can be driven up to +3.6 regardless of the supply voltage. For example, given a + 3.3V supply, IN may be
driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption.
Power-Supply Sequencing and Hot-Plug Information
Proper power-supply sequencing is recommended for all CMOS devices. Always apply V
input/output or control pins.
Rail-to-Rail is a registeredtrademark of Nippon Motorola, Ltd
Power Supply Characteristics
Parameters Description
Parameters Description
resistance of the switch and the load capacitance. The time constant for the switch alone
is of the order of 0.25ns for 50pF load. Since this time constant is much smaller than the
rise/fall times of typical driving signals, it adds very little propagational delay to the
system. Propagational 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.
I
CC
t
t
t
t
t
t
I
PLH
PHL
PZH
PZL
PHZ
PLZ
CC
Quiescent Power
Supply Current
Supply Current per
Input @ TTL HIGH
Propagation Delay
Ax to Bx
Bus Enable Time
BE to Ax or Bx
Bus Disable Time
BE to Ax or Bx
CC
= 3.3V, +25°C ambient.
(2,3)
C
R
C
R
R
Conditions
L
L
L
L
L
= 50 pF,
= 50 pF,
= 500
= 500
= 500
V
V
CC
CC
= Max.
= Max.
(1)
Test Conditions
Min.
1.0
1.0
PI3B3244
3
Com.
Max.
0.25
4.5
(1)
V
V
IN
IN
= GND or V
= 3.0V
Units
CC
ns
ns
ns
.
(3)
CC
and GND before applying signals to
CC
8-Bit, 2-Port NanoSwitch™
Min.
Typ
3.3V, Hot Insertion
0.1
(2)
Max.
750
PS8149F
3.0
PI3B3244
Units
µA
µA
08/25/04