Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

QU80C186EC25 Datasheet(PDF) 8 Page - Intel Corporation

Part # QU80C186EC25
Description  16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
Download  57 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

QU80C186EC25 Datasheet(HTML) 8 Page - Intel Corporation

Back Button QU80C186EC25 Datasheet HTML 4Page - Intel Corporation QU80C186EC25 Datasheet HTML 5Page - Intel Corporation QU80C186EC25 Datasheet HTML 6Page - Intel Corporation QU80C186EC25 Datasheet HTML 7Page - Intel Corporation QU80C186EC25 Datasheet HTML 8Page - Intel Corporation QU80C186EC25 Datasheet HTML 9Page - Intel Corporation QU80C186EC25 Datasheet HTML 10Page - Intel Corporation QU80C186EC25 Datasheet HTML 11Page - Intel Corporation QU80C186EC25 Datasheet HTML 12Page - Intel Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 57 page
background image
80C186EC/188EC, 80L186EC/188EC
pulled low for four clock cycles. Logically ANDing
the WDTOUT pin with the power-on reset signal al-
lows the WDT to reset the device in the event of a
WDT timeout. If a less drastic method of recovery is
desired. WDTOUT can be connected directly to NMI
or one of the INT input pins. The WDT may also be
used as a general purpose timer.
Power Management Unit
The 80C186EC Power Management Unit (PMU) is
provided to control the power consumption of the
device. The PMU provides four power management
modes: Active, Powersave, Idle and Powerdown.
Active Mode indicates that all units on the
80C186EC are operating at ½ the CLKIN frequency.
Idle Mode freezes the clocks of the Execution and
Bus units at a logic zero state (all peripherals contin-
ue to operate normally).
The Powerdown Mode freezes all internal clocks at
a logic zero level and disables the crystal oscillator.
In Powersave Mode, all internal clock signals are di-
vided by a programmable prescalar (up to 1/64 the
normal frequency). Powersave Mode can be used
with Idle Mode as well as during normal (Active
Mode) operation.
80C187 Interface (80C186EC only)
The 80C186EC supports the direct connection of
the 80C187 Numerics Processor Extension. The
80C187 can dramatically improve the performance
of calculation intensive applications.
ONCE Test Mode
To facilitate testing and inspection of devices when
fixed into a target system, the 80C186EC has a test
mode available which forces all output and input/
output pins to be placed in the high-impedance
state. ONCE stands for ‘‘ON Circuit Emulation’’,
The ONCE mode is selected by forcing the
A19/S6/ONCE pin low during a processor reset
(this pin is weakly held high during reset to prevent
inadvertant entrance into ONCE Mode).
PACKAGE INFORMATION
This section describes the pin functions, pinout and
thermal characteristics for the 80C186EC in the
Plastic Quad Flat Pack (JEDEC PQFP), the EIAJ
Quad Flat Pack (QFP) and the Shrink Quad Flat
Pack (SQFP). For complete package specifications
and information, see the Intel Packaging Outlines
and Dimensions Guide (Order Number: 231369).
Prefix Identification
Table 1 lists the prefix identifications.
Table 1: Prefix Identification
Prefix Note Package
Temperature
Type
Range
QFP (EIAJ) Extended
1
PQFP
Extended/Commercial
1
SQFP
Extended/Commercial
1
QFP (EIAJ) Commercial
NOTE:
1. The 5V 25 MHz version is only available in commercial
temperature range corresponding to 0
˚C to a 70°C am-
bient.
Pin Descriptions
Each pin or logical set of pins is described in Table
2, There are four columns for each entry in the Pin
Description Table. The following sections describe
each column.
Column 1. Pin Name
In this column is a mnemonic that de-
scribes the pin function. Negation of the
signal name (i.e. RESIN) implies that the
signal is active low.
Column 2. Pin Type
A pin may be either power (P), ground
(G), input only (I), output only (O) or in-
put/output (I/O). Please note that some
pins have more than 1 function.
A19/S6/ONCE , for example, is normally
an output but functions as an input dur-
ing
reset.
For
this
reason
A19/S6/ONCE is classified as an input/
output pin.
Column 3. Input Type (for I and I/O types only)
There are two different types of input
pins on the 80C186EC: asynchronous
and synchronous.
Asynchronous pins
require that setup and hold times be met
only to
guarantee recognition . Synchro-
nous input pins require that the setup
and hold times be met to
guarantee
proper operation . Stated simply, missing
a setup or hold on an asynchronous pin
will result in something minor (i.e. a timer
count will be missed) whereas missing a
setup or hold on a synchronous pin will
result in system failure (the system will
‘‘lock up’’).
An input pin may also be edge or level
sensitive.
8
x
x
x
x
1. To address the fact that many of the package prefix variables
have changed, all package prefix variables in this document
are now indicated with an "x".


Similar Part No. - QU80C186EC25

ManufacturerPart #DatasheetDescription
logo
Intel Corporation
QU80C186EC20 INTEL-QU80C186EC20 Datasheet
1Mb / 57P
   80C186EC/80C188EC AND 80L186EC/80L188EC 16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
More results

Similar Description - QU80C186EC25

ManufacturerPart #DatasheetDescription
logo
Intel Corporation
80C186XL INTEL-80C186XL Datasheet
561Kb / 48P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
80C186EA INTEL-80C186EA Datasheet
709Kb / 50P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
80C186XL INTEL-80C186XL Datasheet
561Kb / 48P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
80C186EB INTEL-80C186EB Datasheet
779Kb / 59P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
A80C186XL20 INTEL-A80C186XL20 Datasheet
405Kb / 48P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
EE80C188XL12 INTEL-EE80C188XL12 Datasheet
405Kb / 48P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
EE80C186XL20 INTEL-EE80C186XL20 Datasheet
405Kb / 48P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
EG80C186EC25 INTEL-EG80C186EC25 Datasheet
1Mb / 57P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
TS80C186EB20 INTEL-TS80C186EB20 Datasheet
576Kb / 59P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
80C186EC INTEL-80C186EC Datasheet
790Kb / 57P
   16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com