Contents
BIT HIGH-INTEGRATION Embedded Processors
Contentspage
C186EA/80C188EA Block Diagram
Clock Generator
Introduction
80C186EA Core Architecture
Bus Interface Unit
Crystal Connection Clock Connection
Timer/Counter Unit
80C186EA Peripheral Architecture
Interrupt Control Unit
Peripheral Control Block Registers
Refresh Control Unit
Power Management
DMA Control Unit
Chip-Select Unit
Differences Between the 80C186XL and the 80C186EA
QFP Eiaj
Package Information
Pin Descriptions
Plcc
RWH
Resout
Clkin
Oscout
Resin
RD/QSMD
ALE/QS0
BHE
Rfsh
DEN
WR/QS1
Ardy
Srdy
MCS3/NCS
MCS1/ERROR
MCS0/PEREQ
MCS2
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7
80C186EA Pinout
Plcc Package Location with Pin Names
Lead Plcc Pinout Diagram
QFP Eiaj Pin Names with Package Location
QFP Eiaj Package Location with Pin Names
Quad Flat Pack Eiaj Pinout Diagram
UCS LCS PCS6/A2 PCS5/A1 PCS4 PCS3 PCS2 PCS1
Sqfp Pin Functions with Package Location
Sqfp Pin Locations with Pin Names
Hlda Hold Srdy Lock TEST/BUSY NMI INT0 INT1/SELECT
CA QFP 60.5 CA Sqfp
Package Thermal Specifications
400 600 800 1000 CA Plcc
Recommended Connections
Electrical Specifications
Voltage on Other Pins with Respect
Absolute Maximum Ratings
RD/QSMD, UCS, LCS, MCS0/PEREQ
DC Specifications 80C186EA/80C188EA
RD/QSMD, UCS, LCS, MCS0
DC Specifications 80L186EA/80L188EA
ICC Versus Frequency and Voltage
Power e V c I e V2 c Cdev c f ICC e Iccs e V c Cdev c f
Pdtmr PIN Delay Calculation
And/or higher temperature will increase delay time
AC Characteristics-80C186EA25/80C186EA20/80C186EA13
AC Specifications
SRDY, DRQ10
HOLD, PEREQ, Error
Synchronous Inputs
TEST, NMI, INT30 T10IN, Ardy
LOCK, RESOUT, Hlda T0OUT, T1OUT
AC Characteristics-80L186EA13/80L186EA8
ALE, Lock
MCS30, LCS, UCS
AD150 AD70, ARDY, SRDY, DRQ10
TEST, NMI, INT30, T10IN, Ardy
Relative Timings
AC Timing Waveforms
AC Test Conditions
Output Delay and Float Waveform
Relative Signal Waveform
Derating Curves
Reset
Powerup Reset Waveforms
Warm Reset Waveforms
Read, Fetch and Refresh Cycle Waveform
BUS Cycle Waveforms
Write Cycle Waveform
Halt Cycle Waveform
Inta Cycle Waveform
HOLD/HLDA Waveform
Dram Refresh Cycle During Hold Acknowledge
Ready Waveform
80C186EA/80C188EA Execution Timings
Data Transfer
Instruction SET Summary
Arithmetic
Instruction SET Summary
Logic
String Manipulation
Within seg adding immed to SP
101 BP 101 CH 110 SI 110 DH 111 DI 111 BH
010 DX 010 DL
100 SP
Errata
Revision History