The 74AHC257D,118 is a high-speed Si-gate CMOS device manufactured by Nexperia. It's a quad 2-input multiplexer with non-inverting outputs. This device selects one of two 4-bit data sources from the I0 and I1 inputs, as determined by the common data select input (S). Enabling is accomplished by taking the Output Enable input (OE) LOW. When OE is HIGH, all outputs are forced LOW.

Applications:

• Data routing and selection
• Address decoding
• Memory enable/disable
• Signal multiplexing in digital systems
• Logic function implementation

Features:

• High-speed operation: tpd = 4.5 ns (typical) at VCC = 5 V
• Low power dissipation: ICC = 4 μA (maximum) at VCC = 5 V
• Balanced propagation delays
• Wide operating voltage range: 2 V to 5.5 V
• CMOS input levels
• Output drive capability: 8 LSTTL loads
• Direct interface with TTL levels
• ESD protection: HBM exceeds 2000 V, MM exceeds 200 V
• Multiple package options available

Benefits:

• Improved system performance due to high-speed operation
• Reduced power consumption for energy-efficient designs
• Simplified design due to balanced propagation delays
• Flexible operation with a wide voltage range
• Easy integration with TTL and CMOS logic
• Enhanced system reliability with ESD protection

Additional Details:

The 74AHC257D,118 is supplied in a 16-lead SO (Small Outline) package. The operating temperature range is -40°C to +125°C. This device features input hysteresis for improved noise immunity. The control inputs feature clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC. The device is pin-compatible with standard 74HC257 and 74HCT257 logic devices.

Technical Specifications:

• Supply Voltage (VCC): 2V to 5.5V
• Operating Temperature: -40°C to +125°C
• Input Clamp Current: ±20 mA
• Output Current: ±25 mA
• Storage Temperature: -65°C to +150°C
• Package: SO16