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SN74HCS164 データシート(PDF) 8 Page - Texas Instruments

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部品番号. SN74HCS164
部品情報  SN74HCS164 8-Bit Parallel-Out Serial Shift Registers With Schmitt-Trigger Inputs
ダウンロード  24 Pages
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
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SN74HCS164 Datasheet(HTML) 8 Page - Texas Instruments

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7 Parameter Measurement Information
Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators
having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tt < 2.5 ns.
For clock inputs, fmax is measured when the input duty cycle is 50%.
The outputs are measured one at a time with one input transition per measurement.
CL
(1)
From Output
Under Test
Test
Point
(1) CL includes probe and test-fixture capacitance.
Figure 7-1. Load Circuit for Push-Pull Outputs
50%
tw
Input
50%
VCC
0 V
Figure 7-2. Voltage Waveforms, Pulse Duration
Clock
Input
50%
VCC
0 V
50%
50%
VCC
0 V
tsu
Data
Input
th
Figure 7-3. Voltage Waveforms, Setup and Hold
Times
50%
Input
50%
VCC
0 V
50%
50%
VOH
VOL
tPLH
(1)
tPHL
(1)
VOH
VOL
tPHL
(1)
tPLH
(1)
Output
Output
50%
50%
(1) The greater between tPLH and tPHL is the same as tpd.
Figure 7-4. Voltage Waveforms Propagation Delays
VOH
VOL
Output
VCC
0 V
Input
tf
(1)
tr
(1)
90%
10%
90%
10%
tr
(1)
90%
10%
tf
(1)
90%
10%
(1) The greater between tr and tf is the same as tt.
Figure 7-5. Voltage Waveforms, Input and Output Transition Times
SN74HCS164
SCLS827 – AUGUST 2020
www.ti.com
8
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Product Folder Links: SN74HCS164


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