74AHC244-Q100 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
74AHC244-Q100 Datasheet PDF : 17 Pages
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Nexperia
74AHC244-Q100; 74AHCT244-Q100
Octal buffer/line driver; 3-state
Table 7. Dynamic characteristics …continued
GND = 0 V. For test circuit see Figure 8.
Symbol Parameter Conditions
74AHCT244-Q100
tpd
propagation nAn to nYn; see Figure 6
delay
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
ten
enable time nOE to nYn; see Figure 7
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
tdis
disable time nOE to nYn; see Figure 7
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
CPD
power
per buffer;
dissipation CL = 50 pF; f = 1 MHz;
capacitance VI = GND to VCC
25 C
40 C to +85 C 40 C to +125 C Unit
Min Typ[1] Max Min
Max
Min
Max
[2]
- 3.5 7.4 1.0
8.5
1.0
9.5 ns
- 5.0 8.4 1.0
9.5
1.0
10.5 ns
- 3.5 10.4 1.0
12.0
1.0
13.0 ns
- 5.5 11.4 1.0
13.0
1.0
14.5 ns
[2]
- 5.0 9.4 1.0
10.0
1.0
12.0 ns
- 7.0 11.4 1.0
13.0
1.0
14.5 ns
[3] -
12 -
-
-
-
-
pF
[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.
ten is the same as tPZL and tPZH.
tdis is the same as tPLZ and tPHZ.
[3] CPD is used to determine the dynamic power dissipation PD (W).
PD = CPD VCC2 fi + (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.
11. Waveforms
VI
nAn input
GND
VOH
tPLH
nYn output
VOL
VM
VM
VM
tPHL
VM
mna171
Fig 6.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Propagation delay input (nAn) to output (nYn)
74AHC_AHCT244_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 9 July 2012
© Nexperia B.V. 2017. All rights reserved
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