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TC74VHC138FT

Toshiba
Part Number TC74VHC138FT
Manufacturer Toshiba
Description 3-TO-8 LINE DECODOR
Published Apr 23, 2005
Detailed Description TC74VHC138F/FN/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC138F,TC74VHC138FN,TC74VHC138FT,TC...
Datasheet PDF File TC74VHC138FT PDF File

TC74VHC138FT
TC74VHC138FT

Overview
TC74VHC138F/FN/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC138F,TC74VHC138FN,TC74VHC138FT,TC74VHC138FK 3-to-8 Line Decoder The TC74VHC138 is an advanced high speed CMOS 3-to-8 DECODER fabricated with silicon gate C2MOS technology.
It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.
When the device 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.
An input protection circuit ensures that 0 to 5.
5 V can be applied to the input pins without regard to the supply voltage.
This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up.
This circuit prevents device destruction due to mismatched supply and input voltages.
Features • High speed: tpd = 5.
7 ns (typ.
) at VCC = 5 V • Low power dissipation: ICC = 4 μA (max) at Ta = 25°C • High noise immunity: VNIH = VNIL = 28% VCC (min) • Power down protection is provided on all inputs.
• Balanced propagation delays: tpLH ∼− tpHL • Wide operating voltage range: VCC (opr) = 2 V to 5.
5 V • Pin and function compatible with 74ALS138 Note: xxxFN (JEDEC SOP) is not available in Japan.
TC74VHC138F TC74VHC138FN TC74VHC138FT TC74VHC138FK Weight SOP16-P-300-1.
27A SOL16-P-150-1.
27 TSSOP16-P-0044-0.
65A VSSOP16-P-0030-0.
50 : 0.
18 g (typ.
) : 0.
13 g (typ.
) : 0.
06 g (typ.
) : 0.
02 g (typ.
) 1 2007-10-01 Pin Assignment TC74VHC138F/FN/FT/FK A1 B2 C3 G2A 4 G2B 5 G1 6 Y7 7 GND 8 (top view) 16 VCC 15 Y0 14 Y1 13 Y2 12 Y3 11 Y4 10 Y5 9 Y6 IEC Logic Symbol A (1) B (2) C (3) G1 G2A G2B (6) (4) (5) BIN/OCT 10 21 42 3 &4 5 EN 6 7 (15) Y0 (14) Y1 (13) Y2 (12) Y3 (11) Y4 (10) Y5 (9) Y6 (7) Y7 A (1) B (2...


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