pi3vt3245 Pericom Semiconductor Corporation, pi3vt3245 Datasheet - Page 3

• Manufacturer Part Number: pi3vt3245
• Description: 3.3v To 2.5v / 2.5v To 1.8v, 8-bit, 2-port, Low Voltage Translator Bus Switch
• Manufacturer: Pericom Semiconductor Corporation

Power Supply Characteristics
Notes:
1.
2.
3.
Switching Characteristics over 3.3V ±0.3V Operating Range
Switching Characteristics over 2.5V ±0.2V Operating Range
Notes:
1.
2.
3.
I
∆I
Parameters
CC
Parameters
Parameters
CC
For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
Typical values are at V
Per driven input (control input only); A and B pins do not contribute to ΔI
See test circuit and waveforms.
This parameter is guaranteed but not tested on Propagation Delays.
The bus switch contributes no propagational 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 0.25ns 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.
t
t
t
t
t
t
t
t
t
t
t
t
PLH
PHL
PZH
PHZ
PLH
PHL
PZH
PHZ
PZL
PLZ
PZL
PLZ
Quiescent Power Supply Current
Quiescent Current per Input HIGH
Propogation Delay
Enable Time BE to Ax or Bx
Disable Time BE to Ax or Bx
Propogation Delay
Enable Time BE to Ax or Bx
Disable Time BE to Ax or Bx
CC
= 3.3V, +25°C ambient.
Description
Description
Description
(2,3)
(2,3)
Ax to Bx
Ax to Bx
V
CC
= Max.
Test Conditions
3
CC
V
.
IN
V
= GND or V
Conditions
Conditions
IN
R
R
C
R
C
C
R
C
R = 500Ω
R = 500Ω
L
L
L
L
L
L
L
L
= 3V
(1)
= 500Ω,
= 500Ω,
= 500Ω
= 500Ω
= 50pF,
= 50pF,
= 50pF,
= 50pF,
(3)
(1)
(1)
CC
Min.
8-Bit, 2-Port, Low Voltage
Min.
Min.
Translator Bus Switch
1.5
1.5
1.5
1.5
Typ.
Com.
Com.
(2)
PS8530B
Max.
Max.
0.25
0.25
9.8
8.3
9.8
8.3
Max.
50
PI3VT3245
3
Units
Units
Units
ns
ns
µA
08/13/04