DS21554L Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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Компоненты Описание

производитель

DS21554L

DS21354 (3.3V) and DS21554 (5V) E1 Single Chip Transceivers (SCT)

Dallas Semiconductor -> Maxim Integrated 

DS21354 & DS21554

Signal Name:

TESO

Signal Description: Transmit Elastic Store Data Output

Signal Type:

Output

Updated on the rising edge of TCLK with data out of the transmit side elastic store whether the elastic

store is enabled or not. This pin is normally tied to TDATA.

Signal Name:

TDATA

Signal Description: Transmit Data

Signal Type:

Input

Sampled on the falling edge of TCLK with data to be clocked through the transmit side formatter. This

pin is normally tied to TESO.

Signal Name:

TPOSO

Signal Description: Transmit Positive Data Output

Signal Type:

Output

Updated on the rising edge of TCLKO with the bipolar data out of the transmit side formatter. Can be

programmed to source NRZ data via the Output Data Format (TCR2.2) control bit. This pin is normally

tied to TPOSI.

Signal Name:

TNEGO

Signal Description: Transmit Negative Data Output

Signal Type:

Output

Updated on the rising edge of TCLKO with the bipolar data out of the transmit side formatter. This pin is

normally tied to TNEGI.

Signal Name:

TCLKO

Signal Description: Transmit Clock Output

Signal Type:

Output

Buffered output of signal that is clocking data through the transmit side formatter. This pin is normally

tied to TCLKI.

Signal Name:

TPOSI

Signal Description: Transmit Positive Data Input

Signal Type:

Input

Sampled on the falling edge of TCLKI for data to be transmitted out onto the T1 line. Can be internally

connected to TPOSO by tying the LIUC pin high. TPOSI and TNEGI can be tied together in NRZ

applications.

Signal Name:

TNEGI

Signal Description: Transmit Negative Data Input

Signal Type:

Input

Sampled on the falling edge of TCLKI for data to be transmitted out onto the T1 line. Can be internally

connected to TNEGO by tying the LIUC pin high. TPOSI and TNEGI can be tied together in NRZ

applications.

Signal Name:

TCLKI

Signal Description: Transmit Clock Input

Signal Type:

Input

Line interface transmit clock. Can be internally connected to TCLKO by tying the LIUC pin high.

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