74AHC240 NXP [NXP Semiconductors], 74AHC240 Datasheet - Page 7

• Manufacturer Part Number: 74AHC240
• Description: Octal buffer/line driver; inverting; 3-state
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
Table 7.
Voltages are referenced to GND (ground = 0 V); for test circuit see
[1]
[2]
[3]
11. Waveforms
74AHC_AHCT240
Product data sheet
Symbol Parameter
74AHCT240
t
t
t
C
pd
en
dis
Fig 5.
PD
Typical values are measured at nominal supply voltage (V
t
C
P
f
f
C
V
N = number of inputs switching;
(C
pd
i
o
D
CC
PD
= input frequency in MHz;
L
= output frequency in MHz;
is the same as t
= output load capacitance in pF;
= C
L
is used to determine the dynamic power dissipation (P
= supply voltage in V;
 V
Measurement points are given in
V
Propagation delay input (nAn) to output (nYn)
propagation delay nAn to nYn; see
enable time
disable time
power dissipation
capacitance
PD
OL
Dynamic characteristics
CC
 V
and V
2
 f
CC
o
2
) = sum of outputs.
OH
 f
PLH
i
are typical voltage output drop that occur with the output load.
 N + (C
and t
PHL
Conditions
V
V
nOE to nYn; see
V
V
nOE to nYn; see
V
V
V
f
i
L
CC
CC
CC
CC
CC
CC
I
; t
= 1 MHz
= GND to V
 V
en
= 4.5 V to 5.5 V; C
= 4.5 V to 5.5 V; C
= 4.5 V to 5.5 V; C
= 4.5 V to 5.5 V; C
= 4.5 V to 5.5 V; C
= 4.5 V to 5.5 V; C
nAn input
nYn output
is the same as t
CC
2
…continued
 f
Table
GND
V
V
o
All information provided in this document is subject to legal disclaimers.
OH
OL
) where:
V
I
CC
8.
; C
Figure 5
Figure 6
Figure 6
Rev. 2 — 26 November 2010
L
PZH
= 50 pF;
V
M
L
L
L
L
L
L
and t
t
PHL
= 15 pF
= 50 pF
= 15 pF
= 50 pF
= 15 pF
= 50 pF
CC
D
PZL
in W).
= 3.3 V and V
V
; t
M
dis
is the same as t
[2]
[2]
[2]
[3]
Figure
74AHC240; 74AHCT240
Min Typ
CC
-
-
-
-
-
-
-
= 5.0 V).
7.
V
Octal buffer/line driver; inverting; 3-state
M
t
25 C
PLH
3.0
4.4
3.4
4.5
3.9
6.2
9
PLZ
[1]
and t
mgu781
V
Max
M
8.4
8.7
5.8
7.5
9.5
6.1
-
PHZ
.
Min
1.0
1.0
1.0
1.0
1.0
1.0
-
40 C to +125 C
(85 C)
Max
11.5
6.8
9.5
9.0
6.7
9.2
-
© NXP B.V. 2010. All rights reserved.
(125 C)
Max
11.9
14.4
14.4
11.5
8.5
8.3
-
7 of 16
Unit
ns
ns
ns
ns
ns
ns
pF