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MC74VHC244MELG

P1-P3P4-P6P7-P7
© Semiconductor Components Industries, LLC, 2013
March, 2013 − Rev. 9
1 Publication Order Number:
MC74VHC244/D
MC74VHC244
Octal Bus Buffer
The MC74VHC244 is an advanced high speed CMOS octal bus
buffer fabricated with silicon gate CMOS technology.
The MC74VHC244 is a noninverting 3−state buffer, and has two
active−low output enables. This device is designed to be used with
3−state memory address drivers, etc.
The internal circuit is composed of three stages, including a buffer
output which provides high noise immunity and stable output. The
inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems
to 3 V systems.
• High Speed: t
PD
= 3.9 ns (Typ) at V
CC
= 5 V
• Low Power Dissipation: I
CC
= 4 mA (Max) at T
A
= 25°C
• High Noise Immunity: V
NIH
= V
NIL
= 28% V
CC
• Power Down Protection Provided on Inputs
• Balanced Propagation Delays
• Designed for 2 V to 5.5 V Operating Range
• Low Noise: V
OLP
= 0.9 V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300 mA
• ESD Performance: Human Body Model > 2000 V
Machine Model > 200 V
• Chip Complexity: 136 FETs
• NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free and are RoHS Compliant
DATA
INPUTS
A1
A2
A3
A4
B1
B2
B3
B4
17
15
13
11
8
6
4
218
16
14
12
9
7
5
3
YB4
YB3
YB2
YB1
YA4
YA3
YA2
YA1
NONINVERTING
OUTPUTS
OUTPUT
ENABLES
OEA
OEB
1
19
Figure 1. Logic Diagram
http://onsemi.com
1
20
MARKING DIAGRAMS
SOIC−20
DW SUFFIX
CASE 751D
VHC244
AWLYYWWG
TSSOP−20
DT SUFFIX
CASE 948E
1
1
20
1
20
20
VHC244 = Specific Device Code
A = Assembly Location
WL, L = Wafer Lot
Y = Year
WW, W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
VHC
244
ALYWG
G
A3
A2
YB4
A1
OEA
GND
YB1
A4
YB2
YB3 5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
11
12
13
YA2
B4
YA1
OEB
V
CC
B1
YA4
B2
YA3
B3
PIN ASSIGNMENT
ORDERING INFORMATION
See detailed ordering and shipping information in the
Ordering Information Table on page 2 of this data sheet.
MC74VHC244
http://onsemi.com
2
FUNCTION TABLE
INPUTS OUTPUTS
OEA, OEB A, B YA, YB
L L L
L H H
H X Z
ORDERING INFORMATION
Device Package Shipping
†
MC74VHC244DWR2G SOIC−20 WB
(Pb−Free)
1000/Tape & Reel
MC74VHC244DTG
TSSOP−20
(Pb−Free)
75 Units/Rail
MC74VHC244DTR2G 2500/Tape & Reel
NLV74VHC244DTR2G* 2500/Tape & Reel
†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.
*NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP
Capable.
MAXIMUM RATINGS (Note 1)
Symbol
Parameter Value Unit
V
CC
Positive DC Supply Voltage −0.5 to +7.0 V
V
IN
Digital Input Voltage −0.5 to +7.0 V
V
OUT
DC Output Voltage −0.5 to V
CC
+0.5 V
I
IK
Input Diode Current −20 mA
I
OK
Output Diode Current $20 mA
I
OUT
DC Output Current, per Pin $25 mA
I
CC
DC Supply Current, V
CC
and GND Pins $75 mA
P
D
Power Dissipation in Still Air SOIC
TSSOP
500
450
mW
T
STG
Storage Temperature Range −65 to +150 °C
V
ESD
ESD Withstand Voltage Human Body Model (Note 2)
Machine Model (Note 3)
Charged Device Model (Note 4)
>2000
>200
>2000
V
I
LATCHUP
Latchup Performance Above V
CC
and Below GND at 125°C (Note 5) $300 mA
q
JA
Thermal Resistance, Junction−to−Ambient SOIC
TSSOP
96
128
°C/W
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. V
in
and V
out
should be constrained to the range GND v (V
in
or V
out
) v V
CC
. Unused inputs must always be tied to an appropriate logic voltage
level (e.g., either GND or V
CC
). Unused outputs must be left open.
2. Tested to EIA/JESD22−A114−A
3. Tested to EIA/JESD22−A115−A
4. Tested to JESD22−C101−A
5. Tested to EIA/JESD78
MC74VHC244
http://onsemi.com
3
RECOMMENDED OPERATING CONDITIONS
Symbol Characteristics Min Max Unit
V
CC
DC Supply Voltage 2.0 5.5 V
V
IN
DC Input Voltage 0 5.5 V
V
OUT
DC Output Voltage 0 V
CC
V
T
A
Operating Temperature Range, all Package Types −55 125 °C
t
r
, t
f
Input Rise or Fall Time V
CC
= 3.3 V + 0.3 V
V
CC
= 5.0 V + 0.5 V
0 100
20
ns/V
DEVICE JUNCTION TEMPERATURE VERSUS
TIME TO 0.1% BOND FAILURES
Junction
Temperature °C
Time, Hours Time, Years
80 1,032,200 117.8
90 419,300 47.9
100 178,700 20.4
110 79,600 9.4
120 37,000 4.2
130 17,800 2.0
140 8,900 1.0
1
1 10 100
1000
TIME, YEARS
NORMALIZED FAILURE RATE
T
J
= 80
C°
T
J
= 90
C°
T
J
= 100 C°
T
J
= 110 C°
T
J
= 130 C°
T
J
= 120 C°
FAILURE RATE OF PLASTIC = CERAMIC
UNTIL INTERMETALLICS OCCUR
Figure 2. Failure Rate vs. Time Junction Temperature
DC CHARACTERISTICS
(Voltages Referenced to GND)
V
CC
T
A
= 25°C T
A
≤ 85°C −55°C ≤ T
A
≤ 125°C
Symbol Parameter Condition (V) Min Typ Max Min Max Min Max Unit
V
IH
Minimum High−Level
Input Voltage
2.0
3.0 to
5.5
1.5
V
CCX
0.7
1.5
V
CCX
0.7
1.5
V
CCX
0.7
1.5
V
CCX
0.7
V
V
IL
Maximum Low−Level
Input Voltage
2.0
3.0 to
5.5
0.5
V
CCX
0.3
0.5
V
CCX
0.3
0.5
V
CCX
0.3
V
V
OH
Maximum High−Level
Output Voltage
V
IN
= V
IH
or V
IL
I
OH
= −50 mA
2.0
3.0
4.5
1.9
2.9
4.4
2.0
3.0
4.5
1.9
2.9
4.4
1.9
2.9
4.4
V
V
IN
= V
IH
or V
IL
I
OH
= −4 mA
I
OH
= −8 mA
3.0
4.5
2.58
3.94
2.48
3.8
2.34
3.66
V
OL
Maximum Low−Level
Output Voltage
V
IN
= V
IH
or V
IL
I
OL
= 50 mA
2.0
3.0
4.5
0.0
0.0
0.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
V
V
IN
= V
IH
or V
IL
I
OH
= 4 mA
I
OH
= 8 mA
3.0
4.5
0.36
0.36
0.44
0.44
0.52
0.52
I
IN
Input Leakage Current V
IN
= 5.5 V or GND 0 to
5.5
±0.1 ±1.0 ±1.0
mA
I
OZ
Maximum 3−State
Leakage Current
V
IN
= V
IH
or V
IL
V
OUT
= V
CC
or GND
5.5 ±0.25 ±2.5 ±2.5
mA
I
CC
Maximum Quiescent
Supply Current
(per package)
V
IN
= V
CC
or GND 5.5 4.0 40.0 40.0
mA
P1-P3P4-P6P7-P7

MC74VHC244MELG

Mfr. #:
Buy MC74VHC244MELG
Manufacturer:
ON Semiconductor
Description:
Buffers & Line Drivers 2-5.5V Octal 3-State Non-Inverting
Lifecycle:
New from this manufacturer.
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