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AM186 Fiches technique(PDF) 100 Page - Advanced Micro Devices

No de pièce AM186
Description  High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM
PDF  112 Pages
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Fabricant  AMD [Advanced Micro Devices]
Site Internet  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM186 Fiches technique(HTML) 100 Page - Advanced Micro Devices

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100
Am186TMER and Am188TMER Microcontrollers Data Sheet
DRAF
T
Reset Waveforms
Signals Related to Reset Waveforms
X1
RES
CLKOUTA
57
57
Note:
RES must be held Low for 1 ms during power-up to ensure proper device initialization. Activating the PLL will require 1 ms
to achieve a stable clock.
BHE/ADEN*,
RFSH2/ADEN*,
S6/CLKSEL1* **,
UZI/CLKSEL2**
S1/IMDIS*,
and S0/SREN*
RES
CLKOUTA
AD15–AD0 (186)
AO15–AO8,
AD7–AD0 (188)
Notes:
* Because BHE, RFSH2, S6, UZI, S1, and S0 are not driven for 6.5 clocks after reset, their alternate functions can be
asserted with external pulldown resistors.
** In Divide by Two mode and Times One mode, S6/CLKSEL1 and UZI/CLKSEL2 must be held for 3 clock cycles after
reset negates.
***In Times Four mode, S6/CLKSEL1 and UZI/CLKSEL2 must be held for 5 clock cycles after reset negates.
S6/CLKSEL1***,
UZI/CLKSEL2***
Three-State
Three-State
Divide by Two and Times One Modes
Times Four Mode
Three-State



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