参数资料
型号: S80C186XL20
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, 20 MHz, MICROPROCESSOR, PQFP80
封装: EIAJ, QFP-80
文件页数: 48/48页
文件大小: 762K
代理商: S80C186XL20
80C186XL80C188XL
Table 2 Pin Description Nomenclature
Symbol
Description
P
Power Pin (apply a VCC voltage)
G
Ground (connect to VSS)
I
Input only pin
O
Output only pin
IO
InputOutput pin
S(E)
Synchronous edge sensitive
S(L)
Synchronous level sensitive
A(E)
Asynchronous edge sensitive
A(L)
Asynchronous level sensitive
H(1)
Output driven to VCC during bus hold
H(0)
Output driven to VSS during bus hold
H(Z)
Output floats during bus hold
H(Q)
Output remains active during bus hold
H(X)
Output retains current state during bus hold
R(WH)
Output weakly held at VCC during reset
R(1)
Output driven to VCC during reset
R(0)
Output driven to VSS during reset
R(Z)
Output floats during reset
R(Q)
Output remains active during reset
R(X)
Output retains current state during reset
9
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