74HC_HCT4051 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 7 — 19 July 2012 16 of 31
NXP Semiconductors 74HC4051; 74HCT4051
8-channel analog multiplexer/demultiplexer
[1] tpd is the same as tPHL and tPLH.
[2] ton is the same as tPZH and tPZL.
[3] toff is the same as tPHZ and tPLZ.
[4] CPD is used to determine the dynamic power dissipation (PD in W).
PD = CPD VCC2fiN + {(CL+C
sw) VCC2 fo} where:
fi = input frequency in MHz;
fo = output frequency in MHz;
N = number of inputs switching;
{(CL+C
sw) VCC2 fo} = sum of outputs;
CL = output load capacitance in pF;
Csw = switch capacitance in pF;
VCC = supply voltage in V.
toff turn-off time E to Vos; RL=1 k; see Figure 14 [3]
VCC = 2.0 V; VEE =0 V - - 435 ns
VCC = 4.5 V; VEE =0 V - - 87 ns
VCC = 6.0 V; VEE =0 V - - 74 ns
VCC = 4.5 V; VEE =4.5 V - - 72 ns
Sn to Vos; RL=1 k; see Figure 14 [3]
VCC = 2.0 V; VEE =0 V - - 435 ns
VCC = 4.5 V; VEE =0 V - - 87 ns
VCC = 6.0 V; VEE =0 V - - 74 ns
VCC = 4.5 V; VEE =4.5 V - - 72 ns
Table 9. Dynamic characteristics for 74HC4051 …continued
GND = 0 V; tr=t
f=6ns; C
L= 50 pF; for test circuit see Figure 15.
Vis is the input voltage at a Yn or Z terminal, whichever is assigned as an input.
Vos is the output voltage at a Yn or Z terminal, whichever is assigned as an output.
Symbol Parameter Conditions Min Typ Max Unit
Table 10. Dynamic characteristics for 74HCT4051
GND = 0 V; tr=t
f=6ns; C
L= 50 pF; for test circuit see Figure 15.
Vis is the input voltage at a Yn or Z terminal, whichever is assigned as an input.
Vos is the output voltage at a Yn or Z terminal, whichever is assigned as an output.
Symbol Parameter Conditions Min Typ Max Unit
Tamb =25C
tpd propagation delay Vis to Vos; RL=; see Figure 13 [1]
VCC = 4.5 V; VEE =0 V - 5 12 ns
VCC = 4.5 V; VEE =4.5 V - 4 8 ns
ton turn-on time E to Vos; RL=1 k; see Figure 14 [2]
VCC = 4.5 V; VEE = 0 V - 26 55 ns
VCC = 5.0 V; VEE =0 V; C
L = 15 pF - 22 - ns
VCC = 4.5 V; VEE =4.5 V - 16 39 ns
Sn to Vos; RL=1 k; see Figure 14 [2]
VCC = 4.5 V; VEE = 0 V - 28 55 ns
VCC = 5.0 V; VEE =0 V; C
L = 15 pF - 24 - ns
VCC = 4.5 V; VEE =4.5 V - 16 39 ns