ST16C454CJ68 查看數據表（PDF） - Exar Corporation

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ST16C454CJ68

QUAD UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART)

Exar Corporation 

ST16C454

Figure 2, Block Diagram in 16 Mode

D0-D7

-IOR

-IOW

RESET

A0-A2

-CS A-D

INT A-D

INTSEL

XTAL1

XTAL2

Transmit

Holding

Registers

Transmit

Shift

Register

TX A-D

Receive

Holding

Registers

Receive

Shift

Register

RX A-D

Modem

Control

Logic

-DTR A-D

-RTS A-D

-CTS A-D

-RI A-D

-CD A-D

-DSR A-D

Rev. 3.31

2

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