pi5c3253 Pericom Semiconductor Corporation, pi5c3253 Datasheet - Page 3

• Manufacturer Part Number: pi5c3253
• Description: Dual 4 1, Multiplexer/demultiplexer Bus Switch
• Manufacturer: Pericom Semiconductor Corporation

Power Supply Characteristics
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 (V
4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency.
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-Resistance of the switch and the load capacitance. The
Parameters
The I and Y inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.
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.
Param-
eters
∆I
t
t
I
t
t
t
I
PZH
PHZ
PLZ
CCD
t
PZL
SY
IY
CC
CC
06-0240
Propagation Delay
Bus Select Time, Sn to Yn
Bus Enable Time, En to Yn
Bus Disable Time, En to Yn
Quiescent Power
Supply Current
Supply Current per
Input @ TTL HIGH
Supply Current per
Input per MHz
CC
Description
IN
= 5.0V, +25°C ambient.
= 3.4V, control inputs only); I and Y pins do not contribute to I
(4)
Description
(2,3)
In to Yn
V
V
V
I and Y Pins Open
E
Control Input Toggling
50% Duty Cycle
X
CC
CC
CC
= GND
= Max.
= Max.
= Max.,
Test Conditions
3
Conditions
R
C
L
L
= 500Ω
= 50pF
(1)
V
V
IN
IN
or V
(1)
= 3.4V
CC
= GND
.
CC
(3)
Dual 4:1 Mux/DeMux Bus Switch
Min.
0.5
0.5
0.5
Min.
Com.
Typ.
0.1
Max.
0.25
6.6
6.0
6.0
(2)
PS7017E
Max.
0.25
3.0
2.5
PI5C3253
Units
ns
Units
MHz
mA/
mA
µA
05/11/06