參數(shù)資料
型號(hào)： XC68307FG8V
廠(chǎng)商： MOTOROLA INC
元件分類(lèi)： 微控制器/微處理器
英文描述： 16.67 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁(yè)數(shù)： 23/35頁(yè)
文件大?。?/td> 172K
代理商： XC68307FG8V
MOTOROLA
MC68307 TECHNICAL INFORMATION
3
M68300 FAMILY
The MC68307 is one of a series of components in Motorola's M68300 family. Other members of the family
include the MC68302, MC68306, MC68330, MC68331, MC68332, MC68F333, MC68334, MC68340,
MC68341, MC68349, and MC68360.
ORGANIZATION
The M68300 family of integrated processors and controllers is built on an M68000 core processor and a
selection of intelligent peripherals appropriate for a set of applications. Common system glue logic such as
address decoding, wait state insertion, interrupt prioritization, and watchdog timing is also included.
Each member of the M68300 family is distinguished by its selection of on-chip peripherals. Peripherals are
chosen to address specific applications but are often useful in a wide variety of applications. The peripherals
may be highly sophisticated timing or protocol engines that have their own processors, or they may be more
traditional peripheral functions, such as UARTs and timers.
ADVANTAGES
By incorporating so many major features into a single M68300 family chip, a system designer can realize
significant savings in design time, power consumption, cost, board space, pin count, and programming. The
equivalent functionality can easily require 20 separate components. Each component might have 16–64 pins,
totaling over 350 connections. Most of these connections require interconnects or are duplications. Each
connection is a candidate for a bad solder joint or misrouted trace. Each component is another part to qualify,
purchase, inventory, and maintain. Each component requires a share of the printed circuit board. Each
component draws power, which is often used to drive large buffers to get the signal to another chip. The
cumulative power consumption of all the components must be available from the power supply. The signals
between the central processing unit (CPU) and a peripheral might not be compatible nor run from the same
clock, requiring time delays or other special design considerations.
In an M68300 family component, the major functions and glue logic are all properly connected internally, timed
with the same clock, fully tested, and uniformly documented. Only essential signals are brought out to pins.
The primary package is the surface-mount plastic QFP for the smallest possible footprint.
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