74HC244D-652 Datasheet, PDF (2/18 Pages) NXP Semiconductors – Octal buffer/line driver; 3-state Rev. 4 — 24 September 2012

NXP Semiconductors
4. Functional diagram
74HC244; 74HCT244
Octal buffer/line driver; 3-state
Fig 1. Functional diagram
1A0
2
1A1
4
1A2
6
1A3
8
1OE
1
2A0
17
2A1
15
2A2
13
2A3
11
2OE
19
1Y0
18
1Y1
16
1Y2
14
1Y3
12
2Y0
3
2Y1
5
2Y2
7
2Y3
9
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2
1A0
4
1A1
6
1A2
8
1A3
1
1OE
18
17
1Y0 2A0
16
15
1Y1 2A1
14
13
1Y2 2A2
12
11
1Y3 2A3
19
2OE
Fig 2. Logic symbol
3
2Y0
5
2Y1
7
2Y2
9
2Y3
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1 _EN
2
18
4
16
6
14
8
12
19 _EN
11
9
13
7
15
5
17
3
mna873
Fig 3. IEC logic symbol
74HC_HCT244
Product data sheet
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Rev. 4 — 24 September 2012
© NXP B.V. 2012. All rights reserved.
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