74HC151 PHILIPS

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Technical content

Product specification File under Integrated Circuits, IC06 December 1990 INTEGRATED CIRCUITS 74HC/HCT151 8-input multiplexer For a complete data sheet, please also download:

  • The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
  • The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
  • The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines

Philips Semiconductors Product specification 8-input multiplexer 74HC/HCT151

FEATURES

  • True and complement outputs
  • Multifunction capability
  • Permits multiplexing from n lines to 1 line
  • Non-inverting data path
  • See the “251” for the 3-state version
  • Output capability: standard
  • ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT151 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. QUICK REFERENCE DATA GND = 0 V; Tamb =2 5°C; tr =tf= 6 ns Notes 1. C PD is used to determine the dynamic power dissipation (PD inµW): PD =C PD × VCC 2 × fi+∑ (CL × VCC 2 × fo) where: fi= input frequency in MHz fo = output frequency in MHz ∑ (CL × VCC 2 × fo) = sum of outputs C L = output load capacitance in pF VCC = supply voltage in V 2. For HC the condition is VI= GND to VCC For HCT the condition is VI= GND to VCC − 1.5 V

ORDERING INFORMATION

See “74HC/HCT/HCU/HCMOS Logic Package Information”. SYMBOL PARAMETER CONDITIONS TYPICAL UNIT HC HCT tPHL / tPLH propagation delay C L = 15 pF; VCC =5 V In to Y,Y 1 71 9n s Sn to Y,Y 1 92 0n s E t o Y 1 21 3n s E toY 1 41 8n s C I input capacitance 3.5 3.5 pF C PD power dissipation capacitance per package notes 1 and 2 40 40 pF

Philips Semiconductors Product specification 8-input multiplexer 74HC/HCT151 PIN DESCRIPTION PIN NO. SYMBOL NAME AND FUNCTION 4, 3, 2, 1, 15, 14, 13, 12 I0 to I7 multiplexer inputs

5 Y multiplexer output

Y complementary multiplexer output

7 E enable input (active LOW)

8 GND ground (0 V)

11, 10, 9 S 0, S1, S2 select inputs

16 V CC positive supply voltage

Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol.

Philips Semiconductors Product specification 8-input multiplexer 74HC/HCT151 FUNCTION TABLE Notes 1. H = HIGH voltage level L = LOW voltage level X = don’t care. INPUTS OUTPUTS ES 2 S1 S0 I0 I1 I2 I3 I4 I5 I6 I7 YY H XXXXXXXXXXXH L L L L L L L L L L L L L L L H H L H X X X X L H X X X X X X X X X X X X X X X X X X X X X X X X H L H L L H L H L L L L L L L L H H H H L L H H X X X X X X X X L H X X X X L H X X X X X X X X X X X X X X X X H L H L L H L H L L L L H H H H L L L L L L H H X X X X X X X X X X X X X X X X L H X X X X L H X X X X X X X X H L H L L H L H L L L L H H H H H H H H L L H H X X X X X X X X X X X X X X X X X X X X X X X X L H X X X X L H H L H L L H L H Fig.4 Functional diagram. Fig.5 Logic diagram.

Philips Semiconductors Product specification 8-input multiplexer 74HC/HCT151 DC CHARACTERISTICS FOR 74HC For the DC characteristics see“74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: standard ICC category: MSI AC CHARACTERISTICS FOR 74HC GND = 0 V; tr =tf= 6 ns; CL = 50 pF SYMBOL PARAMETER Tamb (°C) UNIT TEST CONDITIONS 74HC VCC (V) WAVEFORMS +25 −40 to+85 −40 to+125 tPHL / tPLH propagation delay In to Y 170 215 255 ns 2.0 4.5 6.0 Fig.6 t PHL / tPLH propagation delay In toY 185 230 280 ns 2.0 4.5 6.0 Fig.6 t PHL / tPLH propagation delay Sn to Y 185 230 280 ns 2.0 4.5 6.0 Fig.7 t PHL / tPLH propagation delay Sn toY 205 255 310 ns 2.0 4.5 6.0 Fig.7 t PHL / tPLH propagation delay E to Y 125 155 190 ns 2.0 4.5 6.0 Fig.7 t PHL / tPLH propagation delay E toY 145 180 220 ns 2.0 4.5 6.0 Fig.7 t THL / tTLH output transition time 110 ns 2.0 4.5 6.0 Figs 6 and 7

Philips Semiconductors Product specification 8-input multiplexer 74HC/HCT151 DC CHARACTERISTICS FOR 74HCT For the DC characteristics see“74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: standard ICC category: MSI Note to HCT types The value of additional quiescent supply current (ΔICC ) for a unit load of 1 is given in the family specifications. To determineΔICC per input, multiply this value by the unit load coefficient shown in the table below. AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr =tf= 6 ns; CL = 50 pF INPUT UNIT LOAD COEFFICIENT In Sn E 0.45 1.50 0.30 SYMBOL PARAMETER T amb (°C) UNIT TEST CONDITIONS 74HCT VCC (V) WAVEFORMS +25 −40 to+85 −40 to+125 tPHL / tPLH propagation delay In to Y 22 38 48 57 ns 4.5 Fig.6 tPHL / tPLH propagation delay In toY 22 38 48 57 ns 4.5 Fig.6 tPHL / tPLH propagation delay Sn to Y 23 41 51 62 ns 4.5 Fig.7 tPHL / tPLH propagation delay Sn toY 25 43 54 65 ns 4.5 Fig.7 tPHL / tPLH propagation delay E to Y 16 29 36 44 ns 4.5 Fig.7 tPHL / tPLH propagation delay E toY 21 36 45 54 ns 4.5 Fig.7 tTHL / tTLH output transition time 7 15 19 22 ns 4.5 Figs 6 and 7

Philips Semiconductors Product specification 8-input multiplexer 74HC/HCT151 AC WAVEFORMS PACKAGE OUTLINES See “74HC/HCT/HCU/HCMOS Logic Package Outlines”. Fig.6 Waveforms showing the multiplexer input (In) to outputs (Y andY) propagation delays and the output transition times. (1) HC : VM = 50%; VI= GND to VCC . HCT : VM = 1.3 V; VI= GND to 3 V. Fig.7 Waveforms showing the select input (Sn) and enable input (E) to outputs (Y andY) propagation delays and the output transition times. (1) HC : VM = 50%; VI= GND to VCC . HCT : VM = 1.3 V; VI= GND to 3 V.