74HCT3G34DC,125

Overview

The Nexperia 74HCT3G34DC,125 is a triple buffer gate manufactured in a VSSOP8 (SOT765-1) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features TTL input levels, CMOS low power dissipation, and high noise immunity. Static characteristics include a maximum input leakage current of ±1.0 μA at 5.5 V and a maximum quiescent supply current of 20 μA. Dynamic performance at 4.5 V specifies a typical propagation delay of 10 ns and a transition time of 6 ns.

Feature Summary

• Triple buffer configuration with inputs including clamp diodes for interfacing voltages exceeding VCC using current limiting resistors.
• TTL-compatible input logic levels ensuring direct interface with Transistor-Transistor Logic systems.
• Robust ESD protection capabilities exceeding 2000 V via Human Body Model and 1000 V via Charged Device Model standards.
• Latch-up performance exceeding 100 mA per JESD 78 Class II Level B specification.

Applications

• Signal buffering in mixed 5 V and 3.3 V environments
• Interface circuits requiring voltage translation between TTL and CMOS domains
• Digital signal conditioning where high noise immunity is required

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when a triple non-inverting buffer is required with TTL-compatible inputs. The HCT series ensures compatibility with standard TTL logic families while offering CMOS power advantages. Ensure the design accommodates the VSSOP8 package thermal requirements and the specified operating temperature range up to +125 °C.

Part Context

This part belongs to the Nexperia 74HCT3G34 family of triple buffer gates. It shares functional similarities with other single-gate or dual-gate variants in the 74HCTxx series but provides three independent buffers in a compact surface-mount package. It is distinct from the HC series by its TTL input thresholds.

Replacement Considerations

Direct pin-compatible replacements include the 74HC3G34DC variant, though it utilizes CMOS input levels rather than TTL. Other triple buffer options within the 74HCT series may require verification of input/output electrical characteristics and package dimensions.