R80C188XL-25 데이터 시트보기 (PDF) - Intel

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R80C188XL-25

16-BIT HIGH-INTEGRATION EMBEDDED PROCESSORS

Intel 

80C186XL 80C188XL

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

Input Output pin

S(E)

Synchronous edge sensitive

S(L)

Synchronous level sensitive

A(E)

Asynchronous edge sensitive

A(L)

Asynchronous level sensitive

H(1)

H(0)

H(Z)

H(Q)

H(X)

Output driven to VCC during bus hold

Output driven to VSS during bus hold

Output floats during bus hold

Output remains active during bus hold

Output retains current state during bus hold

R(WH)

R(1)

R(0)

R(Z)

R(Q)

R(X)

Output weakly held at VCC during reset

Output driven to VCC during reset

Output driven to VSS during reset

Output floats during reset

Output remains active during reset

Output retains current state during reset

9

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