器件名称详细搜索
产品SN74GTL1655TI
描述

The SN74GTL1655 is a high-drive (100 mA), low-output-impedance (12 ) 16-bit UBT™ transceiver that provides LVTTL-to-GTL/GTL+ and GTL/GTL+-to-LVTTL signal-level translation. This device is partitioned as two 8-bit transceivers and combines D-type flip-flops and D-type latches to allow for transparent, latched, and clocked modes of data transfer similar to the '16501 function. This device provides an interface between cards operating at LVTTL logic levels and a backplane operating at GTL/GTL+ signal levels. Higher-speed operation is a direct result of the reduced output swing (<1 V), reduced input threshold levels, and OEC™ circuitry. The high drive is suitable for driving double-terminated low-impedance backplanes using incident-wave switching. The user has the flexibility of using this device at either GTL (VTT = 1.2 V and VREF = 0.8 V) or the preferred higher noise margin GTL+ (VTT = 1.5 V and VREF = 1 V) signal levels. GTL+ is the Texas Instruments derivative of the Gunning Transceiver Logic (GTL) JEDEC standard JESD 8-3. The B port normally operates at GTL or GTL+ signal levels, while the A-port and control inputs are compatible with LVTTL logic levels but are not 5-V tolerant. VREF is the reference input voltage for the B port. This device is uniquely partitioned as two 8-bit transceivers with individual latch timing and output signals, but with a common clock and output enable inputs for both transceiver words. Data flow for each word is determined by the respective latch enables (LEAB and LEBA), output enables (OEAB and OEBA), and clock (CLK). The output enables (1OEAB, 1OEBA, 2OEAB, and 2OEBA) control byte 1 and byte 2 data for the A-to-B and B-to-A directions, respectively. For A-to-B data flow, the devices operate in the transparent mode when LEAB is high. When LEAB transitions low, the A data is latched independent of CLK high or low. If LEAB is low, the A data is registered on the CLK low-to-high transition. When OEAB is low, the outputs are active. With OEAB high, the outputs are in the high-impedance state.

操作查看详情点击下载购买

目录

05610123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ
制造商型号分类描述下载
Molex

Molex

0561218628连接器矩形连接器 - 触头conn crimp socket gold 18-22awg
Molex

Molex

0561218728连接器矩形连接器 - 触头conn crimp socket gold 18-22awg
Molex

Molex

0561178228crc? shielded rectangular i/o male terminal, signal, sequential type, reel, leadfree
Molex

Molex

0561198228连接器矩形连接器 - 触头conn pin crimp 18-22awg gold
Molex

Molex

0561208728连接器矩形连接器 - 触头conn 50ckt crimp socket 24-28awg
Molex

Molex

0561198328连接器矩形连接器 - 触头conn pin crimp 18-22awg gold
Molex

Molex

0561218528连接器矩形连接器 - 触头conn crimp socket gold 18-22awg
Molex

Molex

0561208528连接器矩形连接器 - 触头conn socket crimp 24-28awg gold
Molex

Molex

0561934028compact robot connector power crimp pin, lead free, chain
Molex

Molex

0561188228连接器矩形连接器 - 触头conn pin crimp 24-28awg gold
Phoenix Contact

Phoenix Contact

0561015连接器接线端子板terminal block tools & accessories d-mxk 4
Phoenix Contact

Phoenix Contact

0561002连接器接线端子板din rail terminal blocks mxk 4
Molex

Molex

0561949128连接器矩形连接器 - 触头conn power crimp socket 16-14awg
Molex

Molex

0561178328crc? shielded rectangular i/o male terminal, signal, sequential type, bag, leadfree
Molex

Molex

0561208428连接器矩形连接器 - 触头conn socket crimp 24-28awg gold
Molex

Molex

0561168228crc? shielded rectangular i/o male terminal, signal, sequential type, reel, leadfree
Molex

Molex

0561188328连接器矩形连接器 - 触头conn pin crimp 24-28awg gold
Molex

Molex

0561218428连接器矩形连接器 - 触头conn crimp socket gold 18-22awg
Molex

Molex

0561934128compact robot connector power crimp pin, lead free, loose
Molex

Molex

0561168328连接器矩形连接器 - 触头conn crimp pin w/plt