74HC244D NXP Semiconductors, 74HC244D Datasheet - Page 3

• Manufacturer Part Number: 74HC244D
• Description: Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin SO Bulk
• Manufacturer: NXP Semiconductors

Specifications of 74HC244D

• Package: 20SO
• Logic Family: HC
• Logic Function: Buffer/Line Driver
• Number Of Outputs Per Chip: 8
• Output Type: 3-State
• Input Signal Type: Single-Ended
• Maximum Propagation Delay Time @ Maximum Cl: 110@2V|22@4.5V|19@6V ns
• Polarity: Non-Inverting

Philips Semiconductors
5. Functional diagram
74HC_HCT244_3
Product data sheet
Fig 1. Functional diagram
Fig 2. Logic symbol
1OE
1A0
1A1
1A2
1A3
2
4
6
8
1
18
16
14
12
1Y0
1Y1
1Y2
1Y3
2OE
2A0
2A1
2A2
2A3
17
15
13
11
19
17
15
13
11
19
2
4
6
8
1
Rev. 03 — 22 December 2005
3
5
7
9
mna874
1A0
1A1
1A2
1A3
1OE
2OE
2A0
2A1
2A2
2A3
2Y0
2Y1
2Y2
2Y3
Fig 3. IEC logic symbol
mna875
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
18
16
14
12
3
5
7
9
74HC244; 74HCT244
19
11
13
15
17
1
2
4
6
8
EN
EN
Octal buffer/line driver; 3-state
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
mna873
18
16
14
12
9
7
5
3
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