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74AHC240BQ Fiches technique(PDF) 2 Page - NXP Semiconductors

No de pièce 74AHC240BQ
Description  Octal buffer/line driver; inverting; 3-state
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Fabricant  NXP [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo NXP - NXP Semiconductors

74AHC240BQ Fiches technique(HTML) 2 Page - NXP Semiconductors

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74AHC_AHCT240
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 26 November 2010
2 of 16
NXP Semiconductors
74AHC240; 74AHCT240
Octal buffer/line driver; inverting; 3-state
4.
Functional diagram
5.
Pinning information
5.1 Pinning
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
mgu779
1A3
1A2
1A1
1A0
2
4
6
8
1
1Y0
1Y1
18
16
14
12
1Y2
1Y3
1OE
2A3
2A2
2A1
2A0
17
15
13
11
19
2Y0
2Y1
3
5
7
9
2Y2
2Y3
2OE
12
14
2
4
6
8
18
16
1
EN
mgu778
3
5
11
13
15
17
9
7
19
EN
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 3.
Pin configuration SO20 and TSSOP20
Fig 4.
Pin configuration DHVQFN20
74AHC240
74AHCT240
1OE
VCC
1A0
2OE
2Y0
1Y0
1A1
2A0
2Y1
1Y1
1A2
2A1
2Y2
1Y2
1A3
2A2
2Y3
1Y3
GND
2A3
001aal192
1
2
3
4
5
6
7
8
9
10
12
11
14
13
16
15
18
17
20
19
001aal193
74AHC240
74AHCT240
GND(1)
Transparent top view
1Y3
1A3
2Y3
2A2
2Y2
1Y2
1A2
2A1
2Y1
1Y1
1A1
2A0
2Y0
1Y0
1A0
2OE
9
12
8
13
7
14
6
15
5
16
4
17
3
18
2
19
terminal 1
index area


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