80C186XL/80C188XL
Table 2. Pin Description Nomenclature
Symbol Description
a
P
Power Pin (apply
V
voltage)
CC
G
I
Ground (connect to V
Input only pin
Output only pin
)
SS
O
I/O
Input/Output pin
S(E)
S(L)
A(E)
A(L)
Synchronous, edge sensitive
Synchronous, level sensitive
Asynchronous, edge sensitive
Asynchronous, level sensitive
H(1)
H(0)
H(Z)
H(Q)
H(X)
Output driven to V during bus hold
CC
Output driven to V during bus hold
SS
Output floats during bus hold
Output remains active during bus hold
Output retains current state during bus hold
R(WH)
R(1)
R(0)
Output weakly held at V during reset
CC
Output driven to V during reset
CC
Output driven to V during reset
SS
Output floats during reset
R(Z)
R(Q)
R(X)
Output remains active during reset
Output retains current state during reset
9
ETC [ ETC ]
