The NXP 74HCT4351D is a high-speed Si-gate CMOS device that is pin compatible with low-power Schottky TTL (LSTTL). It is designed to function as an 8-channel analog multiplexer/demultiplexer with a wide range of applications including signal gating, chopping, modulation or demodulation (modem), and signal multiplexing for analog-to-digital and digital-to-analog conversion systems.

This versatile component features eight bidirectional analog switches, each with a common analog input/output (nY) and an individual analog input/output (nZ). Control of the analog signals up to 15Vp-p can be achieved by digital signal inputs (address and enable). A digital input (E) is used to enable or disable the device. When the device is disabled, all analog switches are turned off.

Key features of the 74HCT4351D include:

• Low ON resistance:
• 80 Ω (typical) at VCC - VEE = 4.5V
• 70 Ω (typical) at VCC - VEE = 6.0V
• 60 Ω (typical) at VCC - VEE = 9.0V
• Logic level translation capability to enable 5V logic to communicate with ±5V analog signals
• Typical ‘break before make’ built-in
• ESD protection:
• HBM JESD22-A114E exceeds 2000V
• MM JESD22-A115-A exceeds 200V
• Multiple package options including SO16 and TSSOP16

With its wide operating temperature range from -40°C to +125°C, the 74HCT4351D is suitable for a variety of industrial and commercial applications. Whether for use in multiplexing for data acquisition systems or for routing analog signals to different destinations without signal degradation, the NXP 74HCT4351D offers a reliable and efficient solution.

For detailed information regarding operation conditions, electrical characteristics, and application circuits, refer to the official datasheet provided by NXP Semiconductors.