Phase relationships between waveforms
were chosen arbitrarily for the examples listed in the following table. All input
pulses are supplied by generators having the following characteristics: PRR ≤ 1MHz,
ZO = 50Ω, tt < 2.5ns.
For
clock inputs, fmax is measured when the input duty cycle is 50%.
The outputs are measured individually
with one input transition per measurement.
![SN74AHC594-Q1 Load Circuit for Push-Pull
Outputs GUID-20654E66-970D-45DC-A270-8C43E6874C69-low.gif](/ods/images/SCAS998/GUID-20654E66-970D-45DC-A270-8C43E6874C69-low.gif)
(1) CL includes probe
and test-fixture capacitance.
Figure 6-1 Load Circuit for Push-Pull
Outputs
Figure 6-3 Voltage Waveforms, Setup
and Hold Times![SN74AHC594-Q1 Voltage Waveforms, Input
and Output Transition Times GUID-20200713-CA0I-ZTM5-PTJB-WD0LZ8VNG7PG-low.gif](/ods/images/SCAS998/GUID-20200713-CA0I-ZTM5-PTJB-WD0LZ8VNG7PG-low.gif)
(1) The greater between
tr and tf is the same as tt.
Figure 6-5 Voltage Waveforms, Input
and Output Transition Times
Figure 6-2 Voltage Waveforms, Pulse
Duration![SN74AHC594-Q1 Voltage Waveforms
Propagation Delays GUID-535BFE0F-9D7B-4CA6-85AB-D09CD11F52EA-low.gif](/ods/images/SCAS998/GUID-535BFE0F-9D7B-4CA6-85AB-D09CD11F52EA-low.gif)
(1) The
greater between tPLH and tPHL is the same as
tpd.
Figure 6-4 Voltage Waveforms
Propagation Delays![SN74AHC594-Q1 Voltage Waveforms, Noise GUID-20230721-SS0I-VJQB-BMGP-K0S1JW76FHMX-low.svg](/ods/images/SCAS998/GUID-20230721-SS0I-VJQB-BMGP-K0S1JW76FHMX-low.svg)
Noise values measured with all
other outputs simultaneously switching.
Figure 6-6 Voltage Waveforms, Noise