ADVANCE INFORMATION
PI74LVCC4245A
8-Bit Dual Supply Bus Transceiver
with Configurable Output Voltage and 3-State Outputs
PARAMETER MEASUREMENT INFORMATION FOR B TO A
V
CCA
=4.5V TO 5.5V and V
CCB
= 2.7V to 3.6V
2X V
CCA
Open
GND
From Output
Under Test
CL = 50pF
(See Note A)
500Ω
S1
Test
t
PLH
/t
PHL
t
PLZ
/t
PZL
t
PHZ
/t
PZH
S1
Open
2X V
CCA
GND
500Ω
Load Circuit
Output
Control
3V
1.5V
t
PZL
1.5V
0V
3V
Input
1.5V
t
PLH
1.5V
0V
t
PHL
t
PLZ
Output
V
OH
50% V
CCA
50% V
CCA
V
OL
Output
Waveform 1
S1 at 2X V
CCA
(see Note B)
t
PZH
Output
Waveform 2
S1 at GND
(see Note B)
V
CCA
50% V
CCA
V
OL
+0.3V
t
PHZ
V
OL
V
OH
0V
Voltage Waveforms
Propagation Delay Times
50% V
CCA
V
OH
–0.3V
Voltage Waveforms
Enable and Disable Times
Notes:
A. C
L
includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input impulses are supplied by generators having the following characteristics: PRR
≤
10 MHz, Z
O
= 50Ω, t
R
≤
2.5ns, t
F
≤
2.5ns.
D. The outputs are measured one at a time with one transition per measurement.
Figure 3. Load Circuit and Voltage Waveforms
7
P-0.4
08/11/03
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
