74LVC157A_15 Datasheet, PDF (7/17 Pages) NXP Semiconductors – Quad 2-input multiplexer

NXP Semiconductors
74LVC157A
Quad 2-input multiplexer
10. Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 9.
Symbol Parameter
Conditions
40 C to +85 C
Min Typ^[1] Max
t_pd
propagation delay nI0, nI1 to nY; see Figure 8
V_CC = 1.2 V
V_CC = 1.65 V to 1.95 V
V_CC = 2.3 V to 2.7 V
V_CC = 2.7 V
V_CC = 3.0 V to 3.6 V
E to nY; see Figure 7
[2]
-
1.0
1.5
1.0
1.0
[2]
16
-
4.8 10.2
2.8 5.8
2.9 5.9
2.5 5.2
V_CC = 1.2 V
V_CC = 1.65 V to 1.95 V
V_CC = 2.3 V to 2.7 V
V_CC = 2.7 V
V_CC = 3.0 V to 3.6 V
S to nY; see Figure 8
-
0.5
1.5
1.0
1.0
[2]
17
-
4.8 12.8
2.8 7.2
2.9 7.8
2.6 6.5
t_sk(o)
C_PD
output skew time
power dissipation
capacitance
V_CC = 1.2 V
V_CC = 1.65 V to 1.95 V
V_CC = 2.3 V to 2.7 V
V_CC = 2.7 V
V_CC = 3.0 V to 3.6 V
V_CC = 3.0 V to 3.6 V
per input; V_I = GND to V_CC
V_CC = 1.65 V to 1.95 V
V_CC = 2.3 V to 2.7 V
V_CC = 3.0 V to 3.6 V
-
1.0
1.5
1.0
1.0
[3]
-
[4]
-
-
-
16
-
5.1 12.4
3.0 7.0
3.1 7.3
2.7 6.3
-
1.0
9.4
-
12.8
-
15.9
-
40 C to +125 C Unit
Min
Max
-
- ns
1.0
11.8 ns
1.5
6.7 ns
1.0
7.5 ns
1.0
6.5 ns
-
- ns
0.5
14.7 ns
1.5
8.3 ns
1.0
10.0 ns
1.0
8.5 ns
-
- ns
1.0
14.3 ns
1.5
8.1 ns
1.0
9.5 ns
1.0
8.0 ns
-
1.5 ns
-
- pF
-
- pF
-
- pF
[1] Typical values are measured at T_amb = 25 C and V_CC = 1.2 V, 1.8 V, 2.5 V, 2.7 V, and 3.3 V respectively.
[2] t_pd is the same as t_PLH and t_PHL.
[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
[4] C_PD is used to determine the dynamic power dissipation (P_D in W).
P_D = C_PD  V_CC2  f_i  N + (C_L  V_CC2  f_o) where:
f_i = input frequency in MHz; f_o = output frequency in MHz
C_L = output load capacitance in pF
V_CC = supply voltage in V
N = number of inputs switching
(C_L  V_CC2  f_o) = sum of outputs
74LVC157A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 25 November 2011
© NXP B.V. 2011. All rights reserved.
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