74ALVC244 データシートの表示（PDF） - NXP Semiconductors.
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74ALVC244 Datasheet PDF : 16 Pages
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Nexperia
5 Pinning information
74ALVC244
Octal buffer/line driver; 3-state
5.1 Pinning
74ALVC244
74ALVC244
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
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-027567
aaa-027568
Figure 4. Pin configuration SO20 Figure 5. Pin configuration TSSOP20
terminal 1
index area
74ALVC244
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-027569
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.
Figure 6. Pin configuration
DHVQFN20
5.2 Pin description
Table 2. Pin description
Symbol
1OE, 2OE
1A0, 1A1, 1A2, 1A3
2Y0, 2Y1, 2Y2, 2Y3
GND
2A0, 2A1, 2A2, 2A3
1Y0, 1Y1, 1Y2, 1Y3
VCC
Pin
1, 19
2, 4, 6, 8
3, 5, 7, 9
10
17, 15, 13, 11
18, 16, 14, 12
20
Description
output enable input (active LOW)
data input
bus output
ground (0 V)
data input
bus output
supply voltage
74ALVC244
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 10 October 2017
© Nexperia B.V. 2017. All rights reserved.
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