74VHC594MTR

Shift Registers Overview

The STMicroelectronics 74VHC594MTR is an 8-bit shift register with an output register, fabricated using sub-micron silicon gate C2MOS technology. It features a serial-in, parallel-out shift register feeding an 8-bit D-type storage register. The device operates within a voltage range of 2V to 5.5V and provides separate clocks and direct overriding clear inputs for both registers. It includes power-down protection on all inputs, allowing operation with supply voltages from 0 to 7V regardless of the actual VCC level.

Shift Registers Feature Summary

• High-speed CMOS performance with typical propagation delays of 4.2ns at 5V
• Low power dissipation with maximum quiescent current of 4µA
• Power-down protection enables safe interfacing between 5V and 3V logic levels
• Symmetrical output impedance ensures balanced high and low drive capabilities

Shift Registers Applications

• Serial-to-parallel data conversion systems
• Remote control holding registers
• Cascading applications via serial data output

Shift Registers Procurement Notes

Verify the specific package type (SO-16 or TSSOP-16) required for your design, as the M74VHC594RMTR suffix indicates tape and reel packaging. Confirm that the operating temperature range of -55°C to 125°C meets your environmental specifications. Ensure input voltage limits are respected during power-up sequences to maintain functional integrity.

Shift Registers Selection Notes

Select this component when high-speed shifting with independent storage control is required. The 74VHC594 offers improved latch-up immunity compared to older technologies. Consider the separate clock inputs for SCK and RCK if precise timing control between shifting and storing states is necessary for your application architecture.

Shift Registers Part Context

This device belongs to the 74VHC series of high-speed CMOS logic ICs. It is pin and function compatible with the standard 74LS594 series, facilitating direct upgrades in existing designs. The 74VHC family is characterized by its sub-micron fabrication process, which delivers faster switching speeds while maintaining low power consumption standards.

Shift Registers Replacement Considerations

NXP Semiconductors 74HC594

Shift Registers FAQ

How does the device handle power-down conditions?

The 74VHC594MTR includes power-down protection on all inputs, allowing it to accept voltages from 0 to 7V without regard to the supply voltage.

What is the relationship between the shift and storage registers?

The 8-bit shift register feeds the 8-bit D-type storage register. If clocks are connected, the shift register state remains one clock pulse ahead of the storage register.