Datasheet > MC68HC55

MC68HC55

更新时间： 2024-02-17 16:13:15

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		/
页数	文件大小	规格书
40页	290K
描述
Two-Channel CMOS ASIC Device

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技术参数
数据手册

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MC68HC55 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SOP,
针数：	16	Reach Compliance Code：	compliant
HTS代码：	8542.31.00.01	风险等级：	5.75
地址总线宽度：	16	边界扫描：	NO
最大时钟频率：	4 MHz	外部数据总线宽度：	16
JESD-30 代码：	R-PDSO-G16	JESD-609代码：	e3
长度：	9.9 mm	低功率模式：	YES
湿度敏感等级：	3	串行 I/O 数：	4
端子数量：	16	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.75 mm
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	40	宽度：	3.9 mm
uPs/uCs/外围集成电路类型：	SERIAL IO/COMMUNICATION CONTROLLER, SERIAL	Base Number Matches：	1

MC68HC55 数据手册

MC68HC55 Technical Data

Pin Assignments

The second message assigns the address to the second node and

receives a response message from the first node at the same time. The

first node ignores the second address assignment message because it

already has an address. During the third address assignment message,

only the second node responds (a node only responds to the assignment

message once).This sequence continues until all nodes have been

assigned addresses and have responded that the assignment was

successful.

Now that the nodes each have a unique address, messages can be sent

and received from individual nodes. Notice that during a message, the

node that is receiving the command and the node that is returning a

response are not necessarily the same node.

Nodes do not have any permanently programmed address. Addresses

are assigned according to the order of the devices on the bus every time

power is applied. Multiple nodes may be replaced and/or the system can

be reconfigured by adding nodes to the bus, and the system will

automatically reconfigure itself at the next power-on.

Section 2. MC68HC55CD Pin Assignments and Descriptions

Refer to Figure 2-1 for the MC68HC55CD pin assignments. A brief

description of the pins is given in this section.

2.1 Pin Assignments

SCLK

CLK

DSI0F

DSI0S

DSI0R

N/C

RESET

INT

DSI1F

DSI1S

DSI1R

GND

16-lead narrow body SOIC, package #751B-05 issue J

Figure 2-1. MC68HC55CD Pin Assignments

MC68HC55

MC68HC55CD Pin Assignments and Descriptions

Technical Data

1 2 3 456 7 8...40

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