74AHC126 データシートの表示（PDF） - NXP Semiconductors.
部品番号
コンポーネント説明
メーカー
74AHC126 Datasheet PDF : 15 Pages
| |||
NXP Semiconductors
74AHC126; 74AHCT126
Quad buffer/line driver; 3-state
[1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V).
[2] tpd is the same as tPLH and tPHL.
[3] ten is the same as tPZL and tPZH.
[4] tdis is the same as tPLZ and tPHZ.
[5] 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 V;
N = number of inputs switching;
Σ(CL × VCC2 × fo) = sum of the outputs.
11. Waveforms
VI
nA input
GND
VOH
nY output
VOL
VM
tPHL
VM
tPLH
mna237
Fig 6.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Input to output propagation delays
VI
nOE input
GND
VCC
output
LOW- to - OFF
OFF- to - LOW
VOL
output
VOH
HIGH - to - OFF
OFF- to - HIGH
GND
VM
t PLZ
t PZL
t PHZ
VX
VY
outputs
enabled
VM
t PZH
outputs
disabled
VM
outputs
enabled
mna949
Fig 7.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Enable and disable times
74AHC_AHCT126_4
Product data sheet
Rev. 04 — 12 August 2009
© NXP B.V. 2009. All rights reserved.
8 of 15
Share Link: 