AT16373 Просмотр технического описания (PDF) - Atmel Corporation
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AT16373 Datasheet PDF : 6 Pages
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AT16373
Typical Values
Parameter
Value
Units
VOLP
0.4
V
VOLV
-0.26
V
VOHV
VCC - 0.13
V
VOHP
VCC + 0.6
V
Note: 1. When multiple outputs are switched at the same time, rapidly changing current on the ground and VCC paths
causes a voltage to develop across the parasitic inductance of the wire bond and package pins. This occurrence
is called simultaneous switching noise. Atmel’s AT16373 products have minimized this phenomenon as shown on
the graph. Output data is for 15 outputs switching simultaneously at a frequency of 1 MHz. The ground data is
measured on the one remaining output, which is set to logic low and will reflect any device ground movement.
2. As on the graph for Ground Bounce, a similar condition occurs for low to high transitions. Output data is for 15 outputs
switching simultaneously at a frequency of 1 MHz. VCC droop is measured on the one remaining output pin, which is
set to a logic high. This output will reflect any movement on the device VCC.
Propagation Delay Waveforms
Input
Transition
Output
Transition
1.5 V
tPLH
1.5 V
tPHL
VOH
1.5 V
VOL
Enable and Disable Waveforms(1)
Control
Input
Enable
Disable
tPZL
tPLZ
Output
Switched
Low
Switch Closed
1.5 V
tPZH
tPHZ
Output
Switched
High
Switch Open
1.5 V
Note: 1. Enable and disable waveforms are the same for both xOE and xLE inputs.
0.3 V
0.3 V
3.0 V
1.5 V
0V
3.5 V
VOL
VOH
0V
5-19
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