MC74HCT244A ON Semiconductor, MC74HCT244A Datasheet

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MC74HCT244A

Manufacturer Part Number
MC74HCT244A
Description
Manufacturer
ON Semiconductor
Datasheet

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MC74HCT244A
Octal 3−State Noninverting
Buffer/Line Driver/
Line Receiver with
LSTTL−Compatible Inputs
High−Performance Silicon−Gate CMOS
device may be used as a level converter for interfacing TTL or NMOS
outputs to High−Speed CMOS inputs. The HCT244A is an octal
noninverting buffer line driver line receiver designed to be used with
3−state memory address drivers, clock drivers, and other bus−oriented
systems. The device has non−inverted outputs and two active−low
output enables.
also HCT241.
Features
DATA INPUTS
© Semiconductor Components Industries, LLC, 2006
December, 2006 − Rev. 11
The MC74HCT244A is identical in pinout to the LS244. This
The HCT244A is the non−inverting version of the HCT240. See
ENABLES
No. 7A
Output Drive Capability: 15 LSTTL Loads
TTL NMOS−Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1 mA
In Compliance with the Requirements Defined by JEDEC Standard
Chip Complexity: 112 FETs or 28 Equivalent Gates
Pb−Free Packages are Available
OUTPUT
ENABLE A
ENABLE B
A1
A2
A3
A4
B1
B2
B3
B4
2
4
6
8
11
13
15
17
1
19
Figure 1. Logic Diagram
PIN 20 = V
PIN 10 = GND
18
16
14
12
9
7
5
3
YA1
YA2
YA3
YA4
YB1
YB2
YB3
YB4
CC
NONINVERTING
OUTPUTS
1
See detailed ordering, shipping, and marking information in
the package dimensions section on page 5 of this data sheet.
ORDERING AND MARKING INFORMATION
1
ENABLE A
Z = high impedance, X = don’t care
1
Enable A,
Enable B
GND
YB3
1
YB4
YB2
YB1
1
A1
A2
A3
A4
http://onsemi.com
FUNCTION TABLE
PIN ASSIGNMENT
H
L
L
Inputs
1
2
3
4
5
6
7
8
9
10
A, B
Publication Order Number:
H
X
L
20
19
18
17
16
15
14
13
12
11
Outputs
YA, YB
MC74HCT244A/D
DW SUFFIX
CASE 751D
CASE 948E
SOEIAJ−20
V
ENABLE B
YA1
B4
YA2
B3
YA3
B2
YA4
B1
DT SUFFIX
SOIC−20W
TSSOP−20
CASE 738
N SUFFIX
M SUFFIX
CASE 967
H
CC
L
Z
PDIP−20

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MC74HCT244A Summary of contents

Page 1

... Line Receiver with LSTTL−Compatible Inputs High−Performance Silicon−Gate CMOS The MC74HCT244A is identical in pinout to the LS244. This device may be used as a level converter for interfacing TTL or NMOS outputs to High−Speed CMOS inputs. The HCT244A is an octal noninverting buffer line driver line receiver designed to be used with 3− ...

Page 2

... Information on typical parametric values along with frequency or heavy load considerations can be found in Chapter 2 of the ON Semiconductor High−Speed CMOS Data Book (DL129/D). + ΣDI 2. Total Supply Current = MC74HCT244A Î Î Î Î Î Î Value Î Î Î Î Î Î Î Î Î Î Î Î – 0 Î ...

Page 3

... NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the ON Semiconductor High−Speed CMOS Data Book (DL129/D). C Power Dissipation Capacitance (Per Enabled Output Used to determine the no−load dynamic power consumption Semiconductor High−Speed CMOS Data Book (DL129/D). OUTPUT Y OUTPUT Y MC74HCT244A = 5.0 V ± 10 pF, Input Parameter ...

Page 4

... DEVICE UNDER TEST DATA INPUT ENABLE A OR ENABLE B MC74HCT244A TEST CIRCUITS TEST POINT OUTPUT DEVICE UNDER C * TEST L Figure 4. TEST POINT CONNECT OUTPUT TESTING t AND t PLZ CONNECT TO GND WHEN TESTING t AND t PHZ *Includes all probe and jig capacitance Figure 5 ...

Page 5

... MC74HCT244ANG MC74HCT244ADW MC74HCT244ADWG MC74HCT244ADWR2 MC74HCT244ADWR2G MC74HCT244ADTR2 MC74HCT244ADTR2G MC74HCT244AF MC74HCT244AFG MC74HCT244AFEL MC74HCT244AFELG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *These packages are inherently Pb−Free. PDIP− ...

Page 6

... PLANE 0.25 (0.010 20X 0. 18X A1 MC74HCT244A PACKAGE DIMENSIONS PDIP−20 N SUFFIX PLASTIC DIP PACKAGE CASE 738−03 ISSUE 0.25 (0.010 SOIC−20W DW SUFFIX CASE 751D−05 ISSUE G ...

Page 7

... G D 0.100 (0.004) −T− SEATING PLANE 16X 0.36 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. MC74HCT244A PACKAGE DIMENSIONS TSSOP−20 DT SUFFIX CASE 948E−02 ISSUE ...

Page 8

... BSC H 7.40 8.20 0.291 0.323 E L 0.50 0.85 0.020 0.033 L 1.10 1.50 0.043 0.059 0.70 0.90 0.028 0.035 1 Z −−− 0.81 −−− 0.032 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative MC74HCT244A/D ...

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