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74HC154 Datasheet(PDF) 14 Page - NXP Semiconductors |
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74HC154 Datasheet(HTML) 14 Page - NXP Semiconductors |
14 / 22 page 2004 Oct 12 14 Philips Semiconductors Product specification 4-to-16 line decoder/demultiplexer 74HC154; 74HCT154 Type 74HCT154 GND = 0 V; tr =tf = 6 ns; CL =50pF. SYMBOL PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNIT WAVEFORMS VCC (V) Tamb =25 °C tPHL/tPLH propagation delay An to Yn see Figs 7 and 9 4.5 − 16 35 ns propagation delay En to Yn see Figs 8 and 9 4.5 − 15 32 ns tTHL/tTLH output transition time see Figs 7, 8 and 9 4.5 − 715 ns Tamb = −40 °C to +85 °C tPHL/tPLH propagation delay An to Yn see Figs 7 and 9 4.5 −− 44 ns propagation delay En to Yn see Figs 8 and 9 4.5 −− 40 ns tTHL/tTLH output transition time see Figs 7, 8 and 9 4.5 −− 19 ns Tamb = −40 °C to +125 °C tPHL/tPLH propagation delay An to Yn see Figs 7 and 9 4.5 −− 53 ns propagation delay En to Yn see Figs 8 and 9 4.5 −− 48 ns tTHL/tTLH output transition time see Figs 7, 8 and 9 4.5 −− 22 ns AC WAVEFORMS 001aab073 tPLH tPLH tTLH 90 % 10 % VM tTHL 90 % 10 % VM VM VM An input Yn output GND VI VOH VOL For 74HC154: VM = 50 %; VI = GND to VCC. For 74HCT154: VM = 1.3 V; VI = GND to 3 V. Fig.7 The input (An) to output (Yn) propagation delays and the output transition times. 001aab074 tTHL 90 % 10 % En input Yn output GND VI VOH VOL tPHL tPLH VM tTLH 90 % 10 % VM VM VM For 74HC154: VM = 50 %; VI = GND to VCC. For 74HCT154: VM = 1.3 V; VI = GND to 3 V. Fig.8 The enable input (En) to output (Yn) propagation delays and the output transition times. |
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