DS80C390-FNR(2005) 查看數據表（PDF） - Maxim Integrated

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DS80C390-FNR
(Rev.:2005)

Dual CAN High-Speed Microprocessor

Maxim Integrated 

DS80C390 Dual CAN High-Speed Microprocessor

AC SYMBOLS

The DS80C390 uses timing parameters and symbols similar to the original 8051 family. The following list of timing

symbols is provided as an aid to understanding the timing diagrams.

SYMBOL

t

A

C

CE

D

H

L

I

P

Q

R

V

W

X

Z

FUNCTION

Time

Address

Clock

Chip Enable

Input Data

Logic Level High

Logic Level Low

Instruction

PSEN

Output Data

RD Signal

Valid

WR Signal

No longer a valid logic level.

Tri-State

Figure 1. Multiplexed External Program Memory Read Cycle

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