74LVC16245ADL 데이터 시트보기 (PDF) - NXP Semiconductors.

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74LVC16245ADL

16-bit bus transceiver with direction pin; 5 V tolerant; 3-state

NXP Semiconductors. 

NXP Semiconductors

74LVC16245A; 74LVCH16245A

16-bit bus transceiver with direction pin; 5 V 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

dissipation

capacitance

VCC = 3.3 V

[3]

-

30

-

−40 °C to +125 °C Unit

Min

Max

-

- 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, nBn

input

GND

VOH

nBn, nAn

output

VOL

t PHL

VM

VM

t PLH

mna477

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, nBn) to output (nBn, nAn) propagation delays

74LVC_LVCH16245A_8

Product data sheet

Rev. 08 — 6 November 2008

© NXP B.V. 2008. All rights reserved.

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