The TC74VHC238FT(EL,K) is a high-speed CMOS 3-to-8 line decoder/demultiplexer manufactured by Toshiba Semiconductor and Storage. This device utilizes silicon gate CMOS technology to achieve high-speed operation similar to equivalent bipolar Schottky TTL while maintaining the low power consumption inherent in CMOS integrated circuits. It is designed for applications requiring address decoding or data routing.

Applications:

• Memory address decoding
• Data routing
• Peripheral selection in microprocessor systems
• Logic pattern generation
• Digital multiplexing

Features:

• High-speed operation: tpd = 4.1 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 4 μA (max.) at VCC = 5 V
• Wide operating voltage range: VCC = 2 V to 5.5 V
• High noise immunity: VNIH = VNIL = 28 % VCC (min.)
• Output drive capability: 10 LSTTL loads
• Pin and function compatible with 74HC238
• Small outline package: TSSOP16

Benefits:

• Improved system performance due to high-speed operation.
• Reduced power consumption contributes to energy efficiency.
• Flexible operation with a wide voltage range, suiting diverse application environments.
• Reliable performance in noisy environments due to high noise immunity.
• Easy integration into existing systems due to pin compatibility.
• Space-saving design through utilization of the small TSSOP16 package.

Additional Details:

The TC74VHC238FT(EL,K) features three enable inputs (E1, E2, E3) to facilitate easy cascading for expansion to 4-to-16 line decoders, etc. When all enable inputs are low, one of the eight outputs is selected based on the three binary select inputs (A0, A1, A2). When any of the enable inputs are high, all outputs are forced to a high state. The device is supplied in a TSSOP16 package. It operates over a temperature range of -40°C to +85°C.

The outputs are active low. The device provides true outputs with respect to the inputs.