
3
PS8729F
10/11/08
PI74STX2G4245
2-Bit Level Shifting Buffer/Transceiver with
Congurable Dual Supply Voltage
Recommended Operating Conditions for B Port ( VDDB)
(1)
Paramaters
Description
Test Conditions
Min.
Max.
Units
VDDB
Supply Voltage
2.3
5.5
V
VIH
High-level input voltage
Data Inputs
VDDB = 2.3V to 5.5V
0.7 x VDDB
DIR pin
VIL
Low-level input voltage
Data Inputs
VDDB = 2.3V to 5.5V
0.3 x VDDB
DIR pin
VIB
Input Voltage
0
VDDB
VOB
Output Votage
0
VDDB
IOH
High-level Output Current
VDDB = 2.3 V to 2.7V
-8
mA
VDDB = 3V to 3.6V
-12
VDDB = 4.5V to 5.5V
-24
IOL
Low-level Output Current
VDDB = 2.3V to 2.7V
8
VDDB = 3V to 3.6V
12
VDDB = 4.5V to 5.5V
24
t/V
Input transition rise or fall rate
VDDB = 2.3V to 5.5V
10
m/V
TA
Operation free-air temperature
-40
85
C
Notes:
1.
To ensure proper device operation, all unused inputs must be held at VDDB or GND.
08-0291