74LVC16244ABQ Просмотр технического описания (PDF) - NXP Semiconductors.
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74LVC16244ABQ Datasheet PDF : 19 Pages
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NXP Semiconductors
74LVC16244A; 74LVCH16244A
16-bit buffer/line driver; 5 V input/output tolerant; 3-state
Table 7. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 9.
Symbol Parameter Conditions
−40 °C to +85 °C
Min Typ Max
CPD
power
per buffer; VI = GND to VCC; VCC = 3.3 V [3]
dissipation
capacitance
outputs enabled
-
12
-
outputs disabled
-
4.0
-
−40 °C to +125 °C Unit
Min
Max
-
- pF
-
- pF
[1] tpd is the same as tPLH and tPHL.
ten is the same as tPZL and tPZH.
tdis is the same as tPLZ and tPHZ.
[2] Typical values are measured at Tamb = 25 °C and VCC = 3.3 V.
[3] CPD is used to determine the dynamic power dissipation (PD in μW).
PD = CPD × VCC2 × fi × N + Σ(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
Σ(CL × VCC2 × fo) = sum of the outputs.
11. Waveforms
VI
nAn input
GND
VOH
tPLH
nYn output
VOL
VM
VM
VM
tPHL
VM
mna171
Fig 7.
Measurement points are given in Table 8.
Logic levels: VOL and VOH are typical output voltage levels that occur with the output load.
The input (nAn) to output (nYn) propagation delays
74LVC_LVCH16244A_9
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 09 — 18 March 2010
© NXP B.V. 2010. All rights reserved.
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