ML145428-6P datasheet(2/14 Pages) LANSDALE

Nome de Peças	ML145428-6P

Descrição Electrónicos	Asynchronous-to-Synchronous and Synchronous-to-Asynchronous Converter

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Fabricante Electrônico	LANSDALE [LANSDALE Semiconductor Inc.]

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LANSDALE Semiconductor, Inc.

ML145428

ML145428 DSI PIN DESCRIPTIONS

VDD. POSITIVE POWER SUPPLY

The most positive power supply pin, normally 5 volts.

VSS.NEGATIVE POWER SUPPLY

The most negative supply pin, normally 0 volts.

TxD. TRANSMIT DATA INPUT

Input for asynchronous data, idle is logic high; break is 11

baud or more of logic low. One stop bit is required

RxD. RECEIVE DATA OUTPUT

Output for asynchronous data. The number of stop bits and

the data word length are selected by teh SB and DL pins. Idle

is logic high; break is a continuous logic low.

TxS. TRANSMIT STATUS OUTPUT

This pin will go low if the transmit FIFO holds 2 or more

data words or if RESET is low.

RxS. RECEIVE STATUS OUTPUT

This pin will go low if framing of the synchronous channel

is lost or not established or if RESET is low, or if the receive

FIFO is overwritten.

SB, STOP BITS INPUT

This pin controls the number of stop bits the DATA FOR-

MATTER will re–create when outputting data at the RxD

asynchronous output. A high on this pin selects two stop bits; a

low selects one stop bit.

DL, DATA LENGTH INPUT

This pin instructs the DSI to look for either 8 or 9 bits of

data to be input at the TxD asynchronous input between the

start and stop bits. The DL input also instructs the DSI’s SYN-

CHRONOUS CHANNEL RECEIVER and SYNCHRONOUS

CHANNEL TRANSMITTER to expecct 8 or 9 bit data words

and also instructs the DSI’s DATA FORMATTER to re–create

8 or 9 data bits between the start and stop bits when outputting

data at its RxD asynchronous output. A high on this pin selects

a 9 bit data word, a low selects an 8 bit data word length.

Nº de peça semelhante - ML145428-6P

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LANSDALE Semiconductor ...	ML145428-6P	1Mb / 14P	Asynchronous?뱓o?밪ynchronous

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