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74HC244PW 数据表(PDF) 4 Page - NXP Semiconductors

部件名 74HC244PW
功能描述  Octal buffer/line driver; 3-state
Download  22 Pages
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74HC244PW 数据表(HTML) 4 Page - NXP Semiconductors

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74HC_HCT244_3
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 22 December 2005
4 of 22
Philips Semiconductors
74HC244; 74HCT244
Octal buffer/line driver; 3-state
6.
Pinning information
6.1 Pinning
6.2 Pin description
(1) The die substrate is attached to this
pad using conductive die attach
material. It can not be used as supply
pin or input
Fig 4.
Pin configuration DIP20, SO20,
SSOP20 and TSSOP20
Fig 5.
Pin configuration DHVQFN20
74HC244
74HCT244
1OE
VCC
1A0
2OE
2Y0
1Y0
1A1
2A0
2Y1
1Y1
1A2
2A1
2Y2
1Y2
1A3
2A2
2Y3
1Y3
GND
2A3
001aae011
1
2
3
4
5
6
7
8
9
10
12
11
14
13
16
15
18
17
20
19
001aae012
74HC244
74HCT244
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
GND(1)
Table 3:
Pin description
Symbol
Pin
Description
1OE
1
1 output enable input (active LOW)
1A0
2
1 data input 0
2Y0
3
2 bus output 0
1A1
4
1 data input 1
2Y1
5
2 bus output 1
1A2
6
1 data input 2
2Y2
7
2 bus output 2
1A3
8
1 data input 3
2Y3
9
2 bus output 3
GND
10
ground (0 V)
2A3
11
2 data input 3
1Y3
12
1 bus output 3
2A2
13
2 data input 2
1Y2
14
1 bus output 2


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