ZHCSUY0 February 2024 SN74AHC157-Q1
PRODUCTION DATA
- 1
- 1 特性
- 2 应用
- 3 说明
- 4 Pin Configuration and Functions
- 5 Specifications
- 6 Parameter Measurement Information
- 7 Detailed Description
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Revision History
- 11Mechanical, Packaging, and Orderable Information
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- BQB|16
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6 Parameter Measurement Information
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 < 2.5 ns.
The outputs are measured individually with one input transition per measurement.
(1) CL includes probe
and test-fixture capacitance.
Figure 6-1 Load Circuit for Push-Pull
Outputs
(1) The greater between
tr and tf is the same as tt.
Figure 6-3 Voltage Waveforms, Input
and Output Transition Times
(1) The
greater between tPLH and tPHL is the same as
tpd.
Figure 6-2 Voltage Waveforms
Propagation Delays
Noise values measured with all
other outputs simultaneously switching.
Figure 6-4 Voltage Waveforms, Noise