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74LVC244A 반도체 회로 부품 판매점

Low-Voltage CMOS Octal Buffer



ON Semiconductor 로고
ON Semiconductor
74LVC244A 데이터시트, 핀배열, 회로
74LVC244A
Low-Voltage CMOS Octal
Buffer
With 5 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
The 74LVC244A is a high performance, non−inverting octal buffer
operating from a 1.2 to 3.6 V supply. High impedance TTL compatible
inputs significantly reduce current loading to input drivers while TTL
compatible outputs offer improved switching noise performance. A VI
specification of 5.5 V allows 74LVC244A inputs to be safely driven
from 5 V devices. The 74LVC244A is suitable for memory address
driving and all TTL level bus oriented transceiver applications.
Current drive capability is 24 mA at the outputs. The Output Enable
(OE) input, when HIGH, disables the output by placing them in
a HIGH Z condition.
Features
Designed for 1.2 V to 3.6 V VCC Operation
5 V Tolerant − Interface Capability With 5 V TTL Logic
Supports Live Insertion and Withdrawal
IOFF Specification Guarantees High Impedance When VCC = 0 V
24 mA Output Sink and Source Capability
Near Zero Static Supply Current in All Three Logic States (10 mA)
Substantially Reduces System Power Requirements
ESD Performance:
Human Body Model >2000 V
Machine Model >200 V
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
www.onsemi.com
TSSOP−20
DT SUFFIX
CASE 948E
QFN20
MN SUFFIX
CASE 485AA
QFN20
MN SUFFIX
CASE 485CB
MARKING DIAGRAMS
20
LVC
244A
ALYW G
G
1
1
LVC
244A
ALYWG
G
QFN20 − 485AA
1
244A
ALYWG
G
QFN20 − 485CB
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information on page 7 of
this data sheet.
This document contains information on some products that are still under development.
ON Semiconductor reserves the right to change or discontinue these products without
notice.
© Semiconductor Components Industries, LLC, 2016
February, 2016 − Rev. 1
1
Publication Order Number:
74LVC244A/D


74LVC244A 데이터시트, 핀배열, 회로
74LVC244A
VCC 2OE 1O0 2D0 1O1 2D1 1O2 2D2 1O3 2D3
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
1OE 1D0 2O0 1D1 2O1 1D2 2O2 1D3 2O3 GND
19 12
20
PIN #1
QFN
11
10
29
Figure 1. Pinout: 20−Lead (Top View)
PIN NAMES
PINS
nOE
1Dn, 2Dn
1On, 2On
FUNCTION
Output Enable Inputs
Data Inputs
3−State Outputs
TRUTH TABLE
INPUTS
OUTPUTS
1OE
2OE
1Dn
2Dn
1On, 2On
LL
LH
HX
L
H
Z
H = High Voltage Level
L = Low Voltage Level
Z = High Impedance State
X = High or Low Voltage Level and Transitions are Acceptable
For ICC reasons, DO NOT FLOAT Inputs
1
1OE
2
1D0
4
1D1
6
1D2
8
1D3
18
1O0
16
1O1
14
1O2
12
1O3
19
2OE
17
2D0
15
2D1
13
2D2
11
2D3
3
2O0
5
2O1
7
2O2
9
2O3
Figure 2. Logic Diagram
www.onsemi.com
2




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