Product Summary

The TC74AC138F is an advanced high speed CMOS 3-to-8 LINE DECODER fabricated with silicon gate and double-layer metal wiring C2MOS technology. The TC74AC138F achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. When the TC74AC138F is enabled, 3 Binary Select inputs (A, B and C) determine which one of the outputs ( Y0 - Y7 ) will go low. When enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and all outputs go high. G1, G2A , and G2B inputs are provided to ease cascade connection and for use as an address decoder for memory systems.

Parametrics

TC74AC138F absolute maximum ratings: (1)Supply voltage range VCC: -0.5 to 7.0 V; (2)DC input voltage VIN: -0.5 to VCC + 0.5 V; (3)DC output voltage VOUT: -0.5 to VCC + 0.5 V; (4)Input diode current IIK: ±20 mA; (5)Output diode current IOK: ±50 mA; (6)DC output current IOUT: ±50 mA; (7)DC VCC/ground current ICC: ±200 mA; (8)Power dissipation PD 500 (DIP): 180mW; (9)Storage temperature Tstg: -65 to 150 ℃.

Features

TC74AC138F features: (1)High speed: tpd = 5.9 ns (typ.)at VCC = 5 V; (2)Low power dissipation: ICC = 8 μA (max)at Ta = 25℃; (3)High noise immunity: VNIH = VNIL = 28% VCC (min); (4)Symmetrical output impedance: |IOH| = IOL = 24 mA (min)Capability of driving 50 Ω, transmission lines; (5)Balanced propagation delays: tpLH ∼ tpHL; (6)Wide operating voltage range: VCC (opr)= 2 to 5.5 V; (7)Pin and function compatible with 74F138.

Diagrams

TC74AC138F pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TC74AC138FN(ELP)
TC74AC138FN(ELP)

IC DECODER 3-TO-8 LINE 16-SOL
Data Sheet
0-2500: $0.13
TC74AC138FN
TC74AC138FN

IC DECODER 3-TO-8 LINE 16-SOL
Data Sheet
0-1000: $0.14
TC74AC138F
TC74AC138F
Other

Data Sheet
Negotiable