Toshiba Surface Mount 8-Bit Shift Register/Latch SOIC, 16-Pin, 74HC Logic Family, 2 - 6V Supply Voltage 74HC595D

Toshiba 74HC595D is a surface mount 8-bit shift register and latch designed for high-speed serial-to-parallel data conversion and bus interfacing applications. The IC incorporates silicon gate C2MOS technology and achieves speeds similar to LSTTL types while maintaining low CMOS power consumption. The shift register features eight static bits and an associated storage register, enabling efficient parallel output.

Data is shifted on the positive-going transition of the serial clock input (SCK), while the output register is loaded on the positive-going transition of the RCK input. The independence of these clock signals allows parallel outputs to remain stable during ongoing shift operations. The three-state parallel outputs connect directly to an 8-bit bus, providing flexibility in digital circuit design.

Designed for surface mounting, the SOIC package with 16 pins fits tightly in modern PCB layouts. With its wide operating voltage range of 2V to 6V and logic family compatibility (74HC), this IC is suited for diverse power environments and TTL/CMOS interfacing. Typical operating frequency reaches up to 55 MHz at 5V, supporting fast data transfer in industrial automation, instrumentation, embedded systems, and logic system applications.

Low power dissipation is achieved with a maximum ICC of 4.0 μA at 25°C, making it ideal for energy-sensitive designs. Balanced propagation delays (tPLH ≈ tPHL) ensure signal reliability. Integrated protection circuits secure all inputs against static discharge and excess transient voltages, promoting robust operation in demanding environments.

This device is commonly used for serial-to-parallel conversion in microcontroller peripherals, data receiving in communication systems, and expansion of digital outputs in consumer and industrial electronics. Its stable parallel output facilitates integration in bus-controlled devices and provides strong support for multiplexing and display driving applications.

The SOIC package dimensions are 10.2mm length, 3.9mm width, and 1.75mm height, with 16 pin contacts. Operating temperature extends to a maximum of 125°C. This device does not conform to automotive standards, making it suitable for general industrial, instrumentation, and embedded use cases including PLCs and control panels.

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