SN74LVC4245A-EP Datasheet, PDF (7/13 Pages) Texas Instruments – OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS

From Output
Under Test
CL = 50 pF
(see Note A)
SN74LVC4245AĆEP
OCTAL BUS TRANSCEIVER AND 3.3ĆV TO 5ĆV SHIFTER
WITH 3ĆSTATE OUTPUTS
SCAS742 − DECEMBER 2003
PARAMETER MEASUREMENT INFORMATION
B PORT
500 Ω
500 Ω
7V
S1
Open
GND
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
7V
GND
LOAD CIRCUIT
Input
tw
3V
1.5 V
1.5 V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
Input
Output
3V
1.5 V
1.5 V
0V
tPLH
1.5 V
tPHL
VOH
1.5 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
NONINVERTING OUTPUTS
Output
Control
Output
Waveform 1
S1 at 7 V
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
tPZL
tPZH
1.5 V
1.5 V
1.5 V
3V
1.5 V
0V
tPLZ
3.5 V
VOL + 0.3 V _VOL
tPHZ
VOH − 0.3 V ^VOH
≈0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL 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, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 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.
Figure 2. Load Circuit and Voltage Waveforms
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