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TC74VHC157FT

Toshiba
Part Number TC74VHC157FT
Manufacturer Toshiba
Description QUAD 2-CHANNEL MULTIPLEXER
Published Apr 23, 2005
Detailed Description TC74VHC157F/FN/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC157F,TC74VHC157FN,TC74VHC157FT,TC...
Datasheet PDF File TC74VHC157FT PDF File

TC74VHC157FT
TC74VHC157FT

Overview
TC74VHC157F/FN/FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC157F,TC74VHC157FN,TC74VHC157FT,TC74VHC157FK Quad 2-Channel Multiplexer The TC74VHC157 is an advanced high speed CMOS QUAD 2-CHANNEL MULTIPLEXER 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.
It consists of four 2-input digital multiplexers with common select and strobe inputs.
When the STROBE input is held “H” level, selection of data is inhibited and all the outputs become “L” level.
The SELECT decoding determines whether the A or B inputs get routed to their corresponding Y outputs.
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 on two supply systems such as battery back up.
This circuit prevents device destruction due to mismatched supply and input voltages.
Features • High speed: tpd = 4.
1 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 • Low noise: VOLP = 0.
8 V (max) • Pin and function compatible with 74ALS157 Note: xxxFN (JEDEC SOP) is not available in Japan.
TC74VHC157F TC74VHC157FN TC74VHC157FT TC74VHC157FK 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 SELECT 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 8 A SG BA YB AY BA YYB (top view) 16 VCC 15 ST 14 4A 13 4B 12 4Y 11 3A 10 3B 9 3Y Truth Table Inputs ST SELECT A HXX LLL L LH LHX LHX X: Don’t care B X X X L H Output L L H L H TC74VHC157F/FN/FT/FK IEC Logic Symbol ST (15) SELECT (1) EN G1 1A...


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