DS34LV87TM/NOPB

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DS34LV87TM/NOPB Application Field and Working Principle

The DS34LV87TM/NOPB is a dual rail-to-rail octal bus transceiver designed for use as a 1-of-8 translator/buffer for both 3.3V and 2.5V busses. It has an enable input (DE) to allow enable/disable control of all eight channels. The enable allows controlled transition of the outputs from low to high without any additional external control. The duration of the transition is determined by the RC values connected to the enable pin. By controlling the transition, the powered device is protected against the damaging effects of high power dissipation.

The DS34LV87TM/NOPB provides automatic direction sensing with no external logic. The SELn pin is an input signal, connected to the signal high part of the circuitry. If SELn is high, the output signal is sent to the high part of the signal line. When SELn is low, the output will be sent to the low part of the signal line. When both SELn and DE inputs are low, all outputs go low.

The DS34LV87TM/NOPB is designed for applications such as low voltage differential signal (LVDS) interfacing, inter-system communication, and switch matrix routing. All eight channels can be used to drive loads of up to 52mA. The device has two power supply pins (VCCA and VCCB) that are used to power each rail and provide independent voltage references. The VCCA and VCCB pins can be powered from any combination of 3.3V and 2.5V power supply.

The DS34LV87TM/NOPB also supports point-to-point and switch matrix routings. The device has eight cascadable channels that can be used for point-to-point voltage-mode conversion, allowing a source signal to be converted to another voltage level. The device additionally provides switch matrix routing, which enables a source signal to be routed to multiple destinations. The source signal can be selected using the SELn inputs, and the signals can be routed to their destinations using the DE pin.

The DS34LV87TM/NOPB includes slew rate control to reduce inrush current when an output is enabled. This feature allows the device to be used with relatively slow input signals, and it allows the output slew rate to be adjusted to avoid causing unwanted clock jitter. The DS34LV87TM/NOPB is capable of driving up to 52mA of load current on each channel.

The DS34LV87TM/NOPB has a low-power shutdown mode that reduces power consumption to less than 1uA. This feature is useful for applications that require the device to be enabled and disabled quickly. The device can be enabled via the DE pin for up to 1000ms, and disabled via the DE pin for up to 500ms.

The DS34LV87TM/NOPB is ideal for applications that require low power consumption and fast enabling/disabling of busses or devices. Additionally, its programmable slew rate and power shutdown modes make it ideal for low voltage applications, such as LVDS interfacing, inter-system communication, and switch matrix routing.

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