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74LVC240A View Datasheet(PDF) - NXP Semiconductors.

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74LVC240A Datasheet PDF : 17 Pages
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NXP Semiconductors
74LVC240A
Octal buffer/line driver with 5 V tolerant inputs/outputs; inverting;
3-state
Table 7. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 8.
Symbol Parameter Conditions
40 C to +85 C
Min Typ[1] Max
CPD
power
per buffer; VI = GND to VCC
dissipation
capacitance
VCC = 1.65 V to 1.95 V
VCC = 2.3 V to 2.7 V
[4]
-
2.0
-
-
5.2
-
VCC = 3.0 V to 3.6 V
-
8.1
-
40 C to +125 C Unit
Min
Max
- pF
- pF
- pF
[1] Typical values are measured at Tamb = 25 C and VCC = 1.2 V, 1.8 V, 2.5 V, 2.7 V, and 3.3 V respectively.
[2] tpd is the same as tPLH and tPHL.
ten is the same as tPZL and tPZH.
tdis is the same as tPLZ and tPHZ.
[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
[4] CPD is used to determine the dynamic power dissipation (PD in W).
PD = CPD VCC2 fi N + (CL VCC2 fo) where:
fi = input frequency in MHz; fo = output frequency in MHz
CL = output load capacitance in pF
VCC = supply voltage in Volts
N = number of inputs switching
(CL VCC2 fo) = sum of the outputs
11. AC waveforms
Fig 6.
VI
nAn input
GND
VOH
nYn output
VOL
VM
tPHL
VM
VM
tPLH
VM = 1.5 V at VCC 2.7 V;
VM = 0.5 VCC at VCC < 2.7 V;
VOL and VOH are typical output voltage levels that occur with the output load.
Inputs (1An, 2An) to outputs (1Yn, 2Yn) propagation delays
VM
mgu781
74LVC240A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 29 November 2011
© NXP B.V. 2011. All rights reserved.
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