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74HCT244PW Datasheet Preview

74HCT244PW Datasheet

Octal buffer/line driver

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74HC244; 74HCT244
Octal buffer/line driver; 3-state
Rev. 6 — 27 September 2019
Product data sheet
1. General description
The 74HC244; 74HCT244 is an 8-bit buffer/line driver with 3-state outputs. The device can be
used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and
2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume
a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting
resistors to interface inputs to voltages in excess of VCC.
2. Features and benefits
Input levels:
For 74HC244: CMOS level
For 74HCT244: TTL level
Octal bus interface
Non-inverting 3-state outputs
Complies with JEDEC standard no. 7 A
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from -40 °C to +85 °C and -40 °C to +125 °C
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range
74HC244D
-40 °C to +125 °C
74HCT244D
74HC244DB
-40 °C to +125 °C
74HCT244DB
74HC244PW
-40 °C to +125 °C
74HCT244PW
74HC244BQ
-40 °C to +125 °C
74HCT244BQ
Name
SO20
Description
plastic small outline package; 20 leads;
body width 7.5 mm
SSOP20
plastic shrink small outline package; 20 leads;
body width 5.3 mm
TSSOP20 plastic thin shrink small outline package;
20 leads; body width 4.4 mm
DHVQFN20 plastic dual-in-line compatible thermal
enhanced very thin quad flat package; no leads;
20 terminals; body 2.5 × 4.5 × 0.85 mm
Version
SOT163-1
SOT339-1
SOT360-1
SOT764-1




nexperia

74HCT244PW Datasheet Preview

74HCT244PW Datasheet

Octal buffer/line driver

No Preview Available !

Nexperia
4. Functional diagram
Fig. 1. Functional diagram
2
1A0
4
1A1
6
1A2
8
1A3
1OE 1
18
1Y0
17
2A0
16 1Y1
15
2A1
14 1Y2
13
2A2
12 1Y3
11
2A3
2OE 19
Fig. 2. Logic symbol
74HC244; 74HCT244
Octal buffer/line driver; 3-state
1A0
2
1A1
4
1A2
6
1A3
8
1OE
1
2A0
17
2A1
15
2A2
13
2A3
11
19 2OE
1Y0
18
1Y1
16
1Y2
14
1Y3
12
2Y0
3
2Y1
5
2Y2
7
2Y3
9
mna875
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
Fig. 3. IEC logic symbol
mna873
74HC_HCT244
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 27 September 2019
© Nexperia B.V. 2019. All rights reserved
2 / 16


Part Number 74HCT244PW
Description Octal buffer/line driver
Maker nexperia
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