74LCXP16245MTD

Series:	74LCXP
Packaging:	Tube
Part Status:	Active
Logic Type:	Transceiver, Non-Inverting
Number of Elements:	2
Number of Bits per Element:	8
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	24mA, 24mA
Voltage - Supply:	2 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	48-TFSOP (0.240", 6.10mm Width)
Supplier Device Package:	48-TSSOP
Base Part Number:	74LCXP16245

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74LCXP16245MTD application field and working principle

Logic-buffers, drivers , receivers and transceivers are important components found in various digital electronic designs. The 74LCXP16245MTD is one such product in this family – a Low Voltage 16-BIT Transparent Latch (LVTTL). The functional principle of this product is based on a simple latch where it encodes an input binary word to desired output logic level voltage. The internal architecture of the 74LCXP16245MTD comprises of two input-output banks, each having 8-bits. The selection of which bank is the active one is done by the Bank SEL pin which is externally triggered. Each of the ON/OFF-switching banks works as an 8-bit parallel register. Whenever the SEL pin is high, the LSB bank (D0-D7) serves as the input and the MSB bank (D8-D15) serves as the output. In the reverse situation, when the SEL pin is low, MSB bank serves as the input and the LSB bank serves as the output.The 74LCXP16245MTD has 8-bit control over the source output at four operational modes, viz. Normal, Disable, High Impedance and High Enable modes. In “Normal” mode, all gates in the device operate normally and any change in the input logic states will be reflected to the corresponding outputs. In the “Disable” mode, the outputs are in a high-impedance state, allowing bidirectional data flow depending on the state of the “OE” pin. In High Enable or Low Enable (HEN/LEN) mode, all the outputs are either high or low depending on the “HEN” or “LEN” pin. Power consumption specifications of the device is ~ 56.9 μA in ‘normal’ and ~ 4.5 μA in ‘disable’ modes, respectively. The 74LCXP16245MTD also throws light on the cross-talk effect arising from the on/off banks in terms of crosstalk margin, this being the 75 dB for LVTTL interfaces. In addition, the device provides high noise margins when used in combination with other logic family, e.g. low-voltage CMOS.The 74LCXP16245MTD is well suited for applications that requires 16-bit bidirectional data transfer and this device is available in the JEDEC listed 16-pin TSSOP and SSOP packages.The product offers a great optimization in terms of performance than its predecessors, being the SOIC version of the same device. This is because, shorter current trace lengths of the SOIC version leads to a better transmission line effects and also lesser switching latency.The main application fields of the 74LCXP16245MTD include computers and peripheral interfaces, server system interfaces, local area network, radar systems, industrial control, instrumentation and medical electronics, point-of-sale (POS) systems and automotive systems.To conclude, the 74LCXP16245MTD is an advanced TTL-level device, providing multiple functional benefits to digital systems such as high noise margins, faster switching speed (2-4 ns), low power dissipation, minimal cross-talk effect, optimal impedance matching, etc.

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