SN74LV8T594BQBR

Shift Registers Overview

The SN74LV8T594BQBR is an octal shift register with output registers from Texas Instruments, housed in a 16-pin WQFN package. It operates within a supply voltage range of 1.65V to 5.5V and supports data rates up to 150Mbps at 3.3V or 5V VCC. The device features balanced CMOS push-pull outputs and includes separate clocks for the shift and storage registers. Input pins are 5.5V tolerant, enabling down-translation capabilities.

Shift Registers Feature Summary

• Integrated LVxT enhanced input voltage thresholds support both up-translation and down-translation between various logic levels.
• Latching logic circuitry incorporates a Power-On Reset (POR) mechanism to ensure known power-up states.
• Balanced CMOS push-pull outputs provide symmetric sourcing and sinking drive capabilities.

Shift Registers Applications

• Digital signage systems
• Controlling indicator LEDs
• Increasing microcontroller output pin availability

Shift Registers Procurement Notes

Verify that the BQB suffix corresponds to the WQFN-16 package configuration. Confirm the specific revision level matches design requirements. Ensure ESD handling protocols are followed during assembly due to the sensitivity of CMOS inputs. Validate thermal management strategies against the junction-to-ambient resistance specifications provided in the datasheet.

Shift Registers Selection Notes

Select this component when simultaneous serial-to-parallel conversion and output latching are required without external control interfaces. The LVxT family compatibility allows direct interfacing with mixed-voltage systems. Consider the 5.5V tolerant inputs if connecting to higher voltage buses while operating at lower supply voltages.

Shift Registers Part Context

This part belongs to the SN74LV8T594 series of octal shift registers with output registers. It is designed for applications requiring I/O expansion and level shifting. The device integrates separate clocking for shift and storage operations, allowing independent control over data loading and output presentation.

Shift Registers Replacement Considerations

SN74LV8T594PW

Shift Registers FAQ

How does the device handle unknown states after power application?

The SN74LV8T594 includes a Power-On Reset (POR) circuit that sets all internal latching circuits to a low state during the power-up ramp, ensuring a known initial condition.

What is the function of the QH' output pin?

The QH' output provides a direct connection to the last stage of the internal shift register, facilitating the daisy-chaining of multiple shift registers for expanded data handling.