SGM7SZ08YC5G/TR Small Logic Two-Input AND Gate

Product Overview and Functional Equivalence

The SGM7SZ08YC5G/TR and SN74LVC1G08DCKR are both single-channel, two-input positive AND gate logic devices designed for general-purpose digital logic applications, such as signal gating, logic level combination, and interface control in mixed-voltage systems. They operate over a wide supply range and support CMOS logic levels, making them suitable for modern low-power digital designs.

Supply Voltage Range and Input Tolerance

Both devices support a wide supply voltage range of 1.65V to 5.5V, which enables flexible integration into systems ranging from low-voltage battery-powered designs to 5V logic environments. The SGM7SZ08YC5G/TR also provides input tolerance up to 6V independent of supply, which enhances its robustness when interfacing with external 5V systems without additional level shifting.

Key advantages of SGM7SZ08YC5G/TR:

• Enhanced input over-voltage tolerance (up to 6V) supporting safer mixed-voltage interfacing.

• Maintains predictable logic behavior even when VCC = 0V thanks to high-impedance inputs and output.

Propagation Delay and Performance

In digital logic, propagation delay (tPD) is critical for timing margins and high-speed operations:

• SGM7SZ08YC5G/TR typical propagation delay at VCC = 3.3V is approximately 3.6ns (into 50pF), enabling responsive logic transitions in fast digital paths.

• SN74LVC1G08DCKR, depending on operating conditions, exhibits a typical propagation delay around 3.4ns to 4ns, which is consistent with standard LVC family performance.

Competitive positioning:

SGM7SZ08YC5G/TR’s optimized CMOS design achieves competitive propagation delay while balancing power and drive, making it suitable for timing-sensitive logic without sacrificing stability.

Output Drive and Power Consumption

Both AND gates offer high output drive capability and low static power consumption:

• SGM7SZ08YC5G/TR delivers strong output drive with ±24mA capability, supporting moderate loads without external buffers.

• SN74LVC1G08DCKR provides up to ±32mA output drive under certain conditions, a common value for LVC family logic.

Advantage for SGM7SZ08YC5G/TR:

• Although its nominal ±24mA drive is slightly lower than typical ±32mA, SGM7SZ08YC5G/TR is optimized for balanced drive and power efficiency, especially beneficial in low-power applications where excessive drive current is not required.

• Both devices feature low quiescent current (around 10µA), but SGM7SZ08YC5G/TR’s device characterization in typical use cases demonstrates excellent static power efficiency across the full supply range.

Operating Temperature and Reliability

• SGM7SZ08YC5G/TR is specified over a commercial industrial range (e.g., –40°C to +85°C) suitable for general embedded and control systems.

• SN74LVC1G08DCKR variant from TI also supports a broad operating temperature up to +125°C in some automotive/industrial variants (e.g., Q1 or EP versions), providing extended robustness for harsh environments.

SGM7SZ08YC5G/TR reliability highlights:

• Robust industrial-level operating range covering the majority of typical consumer and industrial applications.

• SGMICRO’s manufacturing and quality control ensure stable performance with competitive environmental ratings.

Package, Form Factor, and BOM Considerations

Both devices are offered in compact SMD packages such as SC70-5, facilitating minimal PCB footprint and cost-effective high-density assemblies.

SGM7SZ08YC5G/TR advantages:

• Variety of package options (e.g., SOT-23-5, SC70-5, XTDFN, UTDFN), enabling design flexibility across compact to ultra-compact board layouts.

Summary of Competitive Advantages

SGM7SZ08YC5G/TR delivers a highly balanced AND gate solution with several strengths compared to SN74LVC1G08DCKR:

• Input voltage tolerance up to 6V improves interfacing flexibility with mixed logic levels.

• Competitive propagation delay optimized for high-speed logic.

• Low power consumption and balanced drive suitable for low-power system designs.

• Varied package options for flexible BOM and layout optimization.

In contrast, while SN74LVC1G08DCKR offers a familiar standard logic gate footprint with strong drive capability and extended temperature options, SGM7SZ08YC5G/TR excels in flexible voltage interfacing and efficient CMOS performance tailored for modern compact and low-power applications.