參數(shù)資料
型號(hào)： AM188ER-25KCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： CA-BAYONET
中文描述： 16-BIT, 25 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁數(shù)： 15/112頁
文件大小： 2878K
代理商： AM188ER-25KCW
Am186
TM
ER and Am188
TM
ER Microcontrollers Data Sheet
15
DRAFT
DMA 0–1
CLKOUT
Direct Memory Interface Example
Figure 1 illustrates the direct interface to memory of the
Am186ER microcontroller. The A19–A0 bus connects
to the memory address inputs, the AD bus connects to
the data inputs and outputs, and the chip selects con-
nect to the memory chip-select inputs.
Figure 1 also shows an implementation of an RS-232
console or modem communications port. The RS-232-
to-CMOS voltage-level converter is required for the
electrical interface with the external device.
COMPARISON OF THE Am
186ER AND
80C186 MICROCONTROLLERS
Figure 1 shows an example system using a 50-MHz
Am186ER microcontroller. Figure 2 shows a compara-
ble system implementation with an 80C186 microcon-
troller. Because of its superior integration, the
Am186ER system does not require the support devices
required on the 80C186 example system. In addition,
the Am186ER microcontroller provides significantly
better performance with its 50-MHz clock rate.
Figure 1. Am186ER 50-MHz Example
System Design
Figure 2. Typical 80C186 System Design
X2
X1
RS-232
Level
Converter
TXD
RXD
UCS
WR
RD
WE
Address
OE
CS
AD15–AD0
A19–A0
Serial Port
Am186ER
Microcontroller
12.5-MHz
Crystal
Data
32 Kbyte
SRAM
Timer 0–2
INT4–INT0
DMA 0–1
CLKOUTA
50 MHz
Am29F400
Flash
UCS
WR
WE
Address
OE
CS
AD15–AD0
ALE
40-MHz
Crystal
Data
Timer 0–2
INT3
20 MHz
X2
X1
SRAM
WE
WE
Address
Data
OE
CS
RD
LCS
BHE
A0
P
L
PCS0
LATCH
Serial
Port
RS-232
Level
Converter
INT2–INT0
PIOs
Am29F400
Flash
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM188ER-25KI/W 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microprocessor
AM188ER-25KIW 制造商:Advanced Micro Devices 功能描述:MCU 16-bit E86 CISC ROMLess 3.3V 100-Pin PQFP 制造商:AMD (Advanced Micro Devices) 功能描述:MCU 16-bit E86 CISC ROMLess 3.3V 100-Pin PQFP
AM188ER-25VC/W 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microprocessor
AM188ER-25VCW 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM
AM188ER-25VD\\W 制造商:Advanced Micro Devices 功能描述:
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