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DP83848MPHPREP Folha de dados(PDF) 20 Page - Texas Instruments

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Nome de Peças DP83848MPHPREP
Descrição Electrónicos  MILITARY TEMPERATURE SINGLE PORT
PDF  92 Pages
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

DP83848MPHPREP Folha de dados(HTML) 20 Page - Texas Instruments

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T2.2.4
T2.2.1
32 clocks
T2.2.2
T2.2.3
Input
Output
V
CC
X1 clock
Hardware
RESET_N
MDC
Latch-in of hardware
configuration pins
Dual function pins
become enabled as outputs
DP83848-EP
SLLSEC6D – SEPTEMBER 2012 – REVISED JUNE 2013
www.ti.com
3.5.2
Reset Timing
Figure 3-3. Reset Timing
xxx
PARAMETER
DESCRIPTION
NOTES(1)
MIN
TYP
MAX
UNIT
T2.2.1
Post RESET Stabilization time prior to
MDIO is pulled high for 32-bit serial
3
µs
MDC preamble for register accesses
management initialization
T2.2.2
Hardware Configuration Latchin Time
Hardware Configuration Pins are described
3
µs
from the Deassertion of RESET (either
in the Pin Description section
soft or hard)
T2.2.3
Hardware Configuration pins transition
50
ns
to output drivers
T2.2.4
RESET pulse width
X1 Clock must be stable for at min. of 1µs
1
µs
during RESET pulse low time
(1)
It is important to choose pull-up and/or pull-down resistors for each of the hardware configuration pins that provide fast RC time
constants in order to latch-in the proper value prior to the pin transitioning to an output driver.
20
ELECTRICAL SPECIFICATIONS
Copyright © 2012–2013, Texas Instruments Incorporated
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Product Folder Links: DP83848-EP



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