AM186 Datasheet, PDF (1/112 Pages) Advanced Micro Devices – High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM

Am186^TMER and Am188^TM_ER
High-Performance, 80C186- and 80C188-Compatible,
16-Bit Embedded Microcontrollers with RAM
DISTINCTIVE CHARACTERISTICS
— DMA to and from asynchronous serial port
n E86^TM family 80C186- and 80C188-compatible
microcontrollers with enhanced bus interface
— Synchronous serial interface allows half-duplex,
bidirectional data transfer to and from ASICs
— Lower system cost with high performance
— Reset configuration register
— 3.3-V ± 0.3-V operation with 5-V tolerant I/O
— Additional external interrupts
n Memory integration
— Hardware watchdog timer can generate NMI or
system reset
— 32 Kbyte of internal SRAM
— Pseudo static RAM (PSRAM) controller includes
— Internal SRAM provides same performance as
zero-wait-state external memory
n High performance
— 25-, 33-, 40- and 50-MHz operating frequencies
— Supports zero-wait-state operation at 50 MHz
with 55-ns external memory
T ^{— 1-Mbyte memory address space}
— 64-Kbyte I/O space
n Enhanced features provide faster access to
memory and various clock input modes
F — Nonmultiplexed address bus provides glueless
interface to external RAM and ROM
— Phase-locked loop (PLL) enables processor to
operate at up to four times clock input frequency
n Enhanced integrated peripherals
A _{— Thirty-two programmable I/O (PIO) pins}
— Asynchronous serial port allows full-duplex, 7-bit
or 8-bit data transfers
auto refresh capability
n Familiar 80C186 peripherals with enhanced
functionality
— Two independent DMA channels
— Programmable interrupt controller with six
external interrupts
— Three programmable 16-bit timers
— Programmable memory and peripheral
chip-select logic
— Programmable wait state generator
— Power-save clock mode
n Software-compatible with the 80C186 and
80C188 microcontrollers
n Widely available native development tools,
applications, and system software
n Available in the following packages:
— 100-pin, thin quad flat pack (TQFP)
— 100-pin, plastic quad flat pack (PQFP)
R _{GENERAL DESCRIPTION}
The Am186^TMER and Am188^TMER microcontrollers are
part of the AMD E86™ family of embedded
D ^{microcontrollers and microprocessors based on the}
(PIO) pins on one chip. Compared to the 80C186/
80C188 microcontrollers, the Am186ER and
Am188ER microcontrollers enable designers to reduce
x86 architecture. The Am186ER and Am188ER the size, power consumption, and cost of embedded
microcontrollers are the ideal upgrade for designs sy stems, whil e inc reasi ng functional ity and
r e q u i r i n g 8 0 C 1 8 6 / 8 0 C 1 8 8 m i c r o c o n t r o l l e r performance.
c o m pa t i bi l i t y, i n c re a s e d p e r fo r m a n c e, se r ia l
communications, a direct bus interface, and integrated
memory.
The Am186ER and Am188ER microcontrollers have
been designed to meet the most common
requirements of embedded products developed for the
The Am186ER and Am188ER microcontrollers communications, office automation, mass storage, and
integrate memory and the functions of the CPU, general embedded markets. Specific applications
nonmultiplexed address bus, timers, chip selects, include feature phones, cellular phones, PBXs,
interrupt controller, DMA controller, PSRAM controller, multiplexers, modems, disk drives, hand-held terminals
watchdog timer, asynchronous serial por t, and desktop terminals, fax machines, printers,
synchronous serial interface, and programmable I/O photocopiers, and industrial controls.
© Copyright 2000 Advanced Micro Devices, Inc. All rights reserved.
Publication# 20732 Rev: D Amendment/0
Issue Date: June 2000