TC74VHC595FTELM

Overview

The TC74VHC595FTELM is an advanced high-speed 8-bit shift register/latch manufactured by Toshiba Semiconductor and Storage using silicon gate C2MOS technology. It features a static shift register feeding an 8-bit storage register with independent SCK and RCK inputs, allowing parallel outputs to remain stable during shifting. The device provides 3-state outputs compatible with 8-bit buses and includes input protection circuits supporting 0 to 5.5 V regardless of supply voltage. Operating ranges include a supply voltage of 2.0 to 5.5 V and temperatures from -40 to 85 °C.

Feature Summary

• High-speed operation achieving frequencies up to 185 MHz at 5 V
• Low power dissipation with quiescent current of 4 μA maximum
• High noise immunity with balanced propagation delays
• Power-down protection on all inputs for mismatched voltage handling

Applications

• Serial-to-parallel conversion
• Data receivers
• Direct connection to 8-bit bus systems
• Interfacing 5 V to 3 V systems

Procurement Notes

Verify the specific package suffix 'EL' against official Toshiba documentation to confirm the exact physical dimensions and pin pitch, as standard datasheets list F (SOP), FT (TSSOP), and FK (VSSOP). Ensure the ordering code matches the required tape-and-reel configuration if applicable. Confirm RoHS compliance status directly with the manufacturer or authorized distributors prior to procurement.

Selection Notes

Select this component when interfacing between different voltage domains, such as 5 V and 3 V systems, due to its wide input voltage tolerance. It is suitable for applications requiring high-speed data latching with minimal power consumption. Consider the 3-state output capability for direct bus integration. Verify that the operating temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the TC74VHC series of CMOS digital integrated circuits. It is functionally compatible with the 74ALS595 but offers improved speed and lower power consumption. The device is designed for general-purpose logic applications requiring serial-to-parallel conversion capabilities within standard industrial temperature ranges.

Replacement Considerations

Functionally equivalent parts include the TC74HC595AP(F) and TC74VHC595F/FT/FK variants from Toshiba. Cross-manufacturer equivalents like the HD74HC595 may be considered if pin compatibility is verified.