Datasheet

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PARAMETER MEASUREMENT INFORMATION FOR B TO A
From Output
Under Test
C
L
= 50 pF
(see Note A)
LOAD CIRCUIT
S1
7 V
Open
GND
500 Ω
500 Ω
3 V
0 V
t
w
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
PULSE DURATION
t
PLH
t
PHL
V
OH
V
OL
Output
Control
Output
Waveform 1
S1 at 7 V
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
V
OL
V
OH
t
PZL
t
PZH
t
PLZ
t
PHZ
3 V
0 V
V
OL
+ 0.3 V
V
OH
- 0.3 V
≈0 V
3 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
Output
t
PLH
/t
PHL
t
PLZ
/t
PZL
t
PHZ
/t
PZH
Open
7 V
GND
TEST S1
Input
3 V
0 V
Input
1.5 V 1.5 V
1.5 V 1.5 V
1.5 V 1.5 V
1.5 V 1.5 V
1.5 V
1.5 V
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 pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
≤ 2.5 ns, t
f
≤ 2.5 ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. All parameters and waveforms are not applicable to all devices.
SN74LVCC4245A
OCTAL DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE OUTPUT VOLTAGE AND 3-STATE OUTPUTS
SCAS584M – NOVEMBER 1996 – REVISED MARCH 2005
V
CCA
= 4.5 V TO 5.5 V AND V
CCB
= 3.6 V TO 5.5 V
Figure 4. Load Circuit and Voltage Waveforms
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