74LVCH244ADB(2009) Ver la hoja de datos (PDF) - NXP Semiconductors.
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74LVCH244ADB Datasheet PDF : 18 Pages
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NXP Semiconductors
74LVC244A; 74LVCH244A
Octal buffer/line driver; 3-state
5. Pinning information
5.1 Pinning
1OE 1
1A0 2
2Y0 3
1A1 4
2Y1 5
1A2 6
2Y2 7
1A3 8
2Y3 9
GND 10
74LVC244A
74LVCH244A
20 VCC
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
11 2A3
001aad113
Fig 4. Pin configuration for SO20 and (T)SSOP20
terminal 1
index area
74LVC244A
74LVCH244A
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
001aad 114
Transparent top view
(1) The die substrate is attached to this pad using
conductive die attach material. It can not be used as a
supply pin or input.
Fig 5. Pin configuration for DHVQFN20 and
DHXQFN20U
5.2 Pin description
Table 2. Pin description
Symbol
Pin
Description
1OE, 2OE
1, 19
output enable input (active low)
1A0, 1A1, 1A2, 1A3 2, 4, 6, 8
data input
2Y0, 2Y1, 2Y2, 2Y3 3, 5, 7, 9
data output
GND
10
ground (0 V)
2A0, 2A1, 2A2, 2A3 17, 15, 13, 11 data input
1Y0, 1Y1, 1Y2, 1Y3, 18, 16, 14, 12 data output
VCC
20
supply voltage
74LVC_LVCH244A_6
Product data sheet
Rev. 06 — 13 August 2009
© NXP B.V. 2009. All rights reserved.
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