74AHCT244-Q100 查看數據表（PDF） - NXP Semiconductors.
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74AHCT244-Q100 Datasheet PDF : 17 Pages
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Nexperia
74AHC244-Q100; 74AHCT244-Q100
Octal buffer/line driver; 3-state
2
1A0
4
1A1
6
1A2
8
1A3
1
1OE
18
17
1Y0 2A0
16
1Y1
15
2A1
14
13
1Y2 2A2
12
1Y3
11
2A3
19
2OE
Fig 2. Logic symbol
5. Pinning information
5.1 Pinning
3
2Y0
5
2Y1
7
2Y2
9
2Y3
mna874
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
74AHC244-Q100
74AHCT244-Q100
1OE 1
1A0 2
2Y0 3
1A1 4
2Y1 5
1A2 6
2Y2 7
1A3 8
2Y3 9
GND 10
20 VCC
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
11 2A3
aaa-003140
Fig 4. Pin configuration SO20, TSSOP20
74AHC244-Q100
74AHCT244-Q100
terminal 1
index area
1A0 2
2Y0 3
1A1 4
2Y1 5
1A2 6
2Y2 7
1A3 8
2Y3 9
GND(1)
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
aaa-003141
Transparent top view
(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 5. Pin configuration DHVQFN20
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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