ON MC74AC244N Octal buffer/line driver with 3-state output Datasheet

MC74AC244, MC74ACT244
Octal Buffer/Line Driver
with 3-State Outputs
The MC74AC244/74ACT244 is an octal buffer and line driver
designed to be employed as a memory address driver, clock driver
and bus oriented transmitter/receiver which provides improved PC
board density.
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• 3–State Outputs Drive Bus Lines or Buffer Memory Address
PDIP–20
N SUFFIX
CASE 738
Registers
• Outputs Source/Sink 24 mA
• ′ACT244 Has TTL Compatible Inputs
VCC
OE2
20
19
18
17
16
15
14
20
1
13
12
SO–20
DW SUFFIX
CASE 751
20
11
1
TSSOP–20
DT SUFFIX
CASE 948E
20
1
1
2
3
4
5
6
OE1
7
8
9
20
GND
1
Figure 1. Pinout: 20–Lead Packages Conductors
(Top View)
ORDERING INFORMATION
TRUTH TABLE
Inputs
Outputs
OE1
D
(Pins 12, 14, 16, 18)
L
L
H
L
H
X
L
H
Z
NOTE:
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
TRUTH TABLE
Inputs
Outputs
OE2
D
(Pins 3, 5, 7, 9)
L
L
H
L
H
X
L
H
Z
NOTE:
EIAJ–20
M SUFFIX
CASE 967
10
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Device
Package
Shipping
MC74AC244N
PDIP–20
18 Units/Rail
MC74ACT244N
PDIP–20
18 Units/Rail
MC74AC244DW
SOIC–20
38 Units/Rail
MC74AC244DWR2
SOIC–20
1000 Tape & Reel
MC74ACT244DW
SOIC–20
38 Units/Rail
MC74ACT244DWR2
SOIC–20
1000 Tape & Reel
MC74AC244DT
TSSOP–20
75 Units/Rail
MC74AC244DTR2
TSSOP–20
2500 Tape & Reel
MC74ACT244DT
TSSOP–20
75 Units/Rail
MC74ACT244DTR2
TSSOP–20
2500 Tape & Reel
MC74AC244M
EIAJ–20
40 Units/Rail
MC74AC244MEL
EIAJ–20
2000 Tape & Reel
MC74ACT244M
EIAJ–20
40 Units/Rail
MC74ACT244MEL
EIAJ–20
2000 Tape & Reel
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 5 of this data sheet.
 Semiconductor Components Industries, LLC, 2001
May, 2001 – Rev. 5
1
Publication Order Number:
MC74AC244/D
MC74AC244, MC74ACT244
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
VCC
DC Supply Voltage (Referenced to GND)
–0.5 to +7.0
V
VIN
DC Input Voltage (Referenced to GND)
–0.5 to VCC +0.5
V
VOUT
DC Output Voltage (Referenced to GND)
–0.5 to VCC +0.5
V
IIN
DC Input Current, per Pin
±20
mA
IOUT
DC Output Sink/Source Current, per Pin
±50
mA
ICC
DC VCC or GND Current per Output Pin
±50
mA
Tstg
Storage Temperature
–65 to +150
°C
*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC
Supply Voltage
VIN, VOUT
DC Input Voltage, Output Voltage (Ref. to GND)
tr, tf
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
Min
Typ
Max
Unit
′AC
2.0
5.0
6.0
′ACT
4.5
5.0
5.5
0
–
VCC
VCC @ 3.0 V
–
150
–
VCC @ 4.5 V
–
40
–
VCC @ 5.5 V
–
25
–
VCC @ 4.5 V
–
10
–
VCC @ 5.5 V
–
8.0
–
–
–
140
°C
–40
25
85
°C
V
V
ns/V
tr, tf
In ut Rise and Fall Time (Note 2)
Input
′ACT Devices except Schmitt Inputs
TJ
Junction Temperature (PDIP)
TA
Operating Ambient Temperature Range
IOH
Output Current – High
–
–
–24
mA
IOL
Output Current – Low
–
–
24
mA
ns/V
1. VIN from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times.
2. VIN from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
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2
MC74AC244, MC74ACT244
DC CHARACTERISTICS
Symbol
Parameter
VCC
(V)
74AC
74AC
TA = +25°C
TA =
–40°C to
+85°C
Typ
VIH
VIL
VOH
VOL
Unit
Conditions
Guaranteed Limits
Minimum High
g Level
Input Voltage
3.0
4.5
5.5
1.5
2.25
2.75
2.1
3.15
3.85
2.1
3.15
3.85
V
VOUT = 0.1 V
or VCC – 0.1 V
Maximum Low Level
Input Voltage
3.0
4.5
5.5
1.5
2.25
2.75
0.9
1.35
1.65
0.9
1.35
1.65
V
VOUT = 0.1 V
or VCC – 0.1 V
Minimum High
g Level
Output Voltage
3.0
4.5
5.5
2.99
4.49
5.49
2.9
4.4
5.4
2.9
4.4
5.4
V
3.0
4.5
5.5
–
–
–
2.56
3.86
4.86
2.46
3.76
4.76
3.0
4.5
5.5
0.002
0.001
0.001
0.1
0.1
0.1
0.1
0.1
0.1
3.0
4.5
5.5
–
–
–
0.36
0.36
0.36
0.44
0.44
0.44
Maximum Low Level
Output Voltage
IOUT = –50 µA
V
*VIN = VIL or VIH
–12 mA
IOH
–24 mA
–24 mA
IOUT = 50 µA
V
V
*VIN = VIL or VIH
12 mA
IOL
24 mA
24 mA
IIN
Maximum Input
Leakage Current
55
5.5
–
±0 1
±0.1
±1 0
±1.0
µA
VI = VCC, GND
IOZ
Maximum
3–State
C
Current
5.5
–
±0.5
±5.0
µA
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
5.5
–
–
75
mA
VOLD = 1.65 V Max
5.5
–
–
–75
mA
VOHD = 3.85 V Min
55
5.5
–
80
8.0
80
µA
VIN = VCC or GND
IOLD
IOHD
ICC
†Minimum Dynamic
O t t Current
Output
C
t
Maximum Q
Quiescent
Supply Current
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC.
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3
MC74AC244, MC74ACT244
AC CHARACTERISTICS (For Figures and Waveforms – See Section 3)
Symbol
VCC*
(V)
Parameter
74AC
74AC
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Min
Typ
Max
Min
Max
Unit
Fig.
No.
tPLH
Propagation Delay
Data to Output
3.3
5.0
2.0
1.5
6.5
5.0
9.0
7.0
1.5
1.0
10.0
7.5
ns
3–5
tPHL
Propagation Delay
Data to Output
3.3
5.0
2.0
1.5
6.5
5.0
9.0
7.0
2.0
1.0
10.0
7.5
ns
3–5
tPZH
Output Enable Time
3.3
5.0
2.0
1.5
6.0
5.0
10.5
7.0
1.5
1.5
11.0
8.0
ns
3–7
tPZL
Output Enable Time
3.3
5.0
2.5
1.5
7.5
5.5
10.0
8.0
2.0
1.5
11.0
8.5
ns
3–8
tPHZ
Output Disable Time
3.3
5.0
3.0
2.5
7.0
6.5
10.0
9.0
1.5
1.0
10.5
9.5
ns
3–7
tPLZ
Output Disable Time
3.3
5.0
2.5
2.0
7.5
6.5
10.5
9.0
2.5
2.0
11.5
9.5
ns
3–8
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
DC CHARACTERISTICS
Symbol
Parameter
VCC
(V)
74ACT
74ACT
TA = +25°C
TA =
–40°C to
+85°C
Typ
Guaranteed Limits
Unit
Conditions
VIH
Minimum High
g Level
Input Voltage
4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
V
VOUT = 0.1 V
or VCC – 0.1 V
VIL
Maximum Low Level
Input Voltage
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
V
VOUT = 0.1 V
or VCC – 0.1 V
VOH
Minimum High
g Level
Output Voltage
4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
V
4.5
5.5
–
–
3.86
4.86
3.76
4.76
4.5
5.5
0.001
0.001
0.1
0.1
0.1
0.1
4.5
5.5
–
–
0.36
0.36
0.44
0.44
V
*VIN = VIL or VIH
24 mA
IOL
24 mA
VOL
Maximum Low Level
Output Voltage
V
V
IOUT = –50 µA
*VIN = VIL or VIH
–24 mA
IOH
–24 mA
IOUT = 50 µA
IIN
Maximum Input
Leakage Current
55
5.5
–
±0 1
±0.1
±1 0
±1.0
µA
VI = VCC, GND
∆ICCT
Additional Max. ICC/Input
5.5
0.6
–
1.5
mA
VI = VCC – 2.1 V
IOZ
Maximum
3–State
C
Current
5.5
–
±0.5
±5.0
µA
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
5.5
–
–
75
mA
VOLD = 1.65 V Max
5.5
–
–
–75
mA
VOHD = 3.85 V Min
55
5.5
–
80
8.0
80
µA
VIN = VCC or GND
IOLD
IOHD
ICC
†Minimum Dynamic
O t t Current
Output
C
t
Maximum Q
Quiescent
Supply Current
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
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4
MC74AC244, MC74ACT244
AC CHARACTERISTICS (For Figures and Waveforms – See Section 3)
Symbol
VCC*
(V)
Parameter
74ACT
74ACT
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Min
Typ
Max
Min
Max
Unit
Fig.
No.
tPLH
Pro agation Delay
Propagation
Data to Output
50
5.0
20
2.0
65
6.5
90
9.0
15
1.5
10 0
10.0
ns
3–5
tPHL
Pro agation Delay
Propagation
Data to Output
50
5.0
20
2.0
70
7.0
90
9.0
15
1.5
10 0
10.0
ns
3–5
tPZH
Output Enable Time
5.0
1.5
6.0
8.5
1.0
9.5
ns
3–7
tPZL
Output Enable Time
5.0
2.0
7.0
9.5
1.5
10.5
ns
3–8
tPHZ
Output Disable Time
5.0
2.0
7.0
9.5
1.5
10.5
ns
3–7
tPLZ
Output Disable Time
5.0
2.5
7.5
10.0
2.0
10.5
ns
3–8
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
CAPACITANCE
Symbol
Parameter
Value
Typ
Unit
Test Conditions
CIN
Input Capacitance
4.5
pF
VCC = 5.0 V
CPD
Power Dissipation Capacitance
45
pF
VCC = 5.0 V
MARKING DIAGRAMS
PDIP–20
SO–20
MC74AC244N
AWLYYWW
AC244
AWLYYWW
MC74ACT244N
AWLYYWW
ACT244
AWLYYWW
A
WL, L
YY, Y
WW, W
TSSOP–20
EIAJ–20
AC
244
ALYW
74AC244
AWLYWW
ACT
244
ALYW
74ACT244
AWLYWW
= Assembly Location
= Wafer Lot
= Year
= Work Week
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5
MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
PDIP–20
N SUFFIX
20 PIN PLASTIC DIP PACKAGE
CASE 738–03
ISSUE E
–A–
20
11
1
10
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
B
L
C
–T–
K
SEATING
PLANE
M
N
E
G
F
J
D
20 PL
0.25 (0.010)
20 PL
0.25 (0.010)
M
T A
M
M
T B
M
DIM
A
B
C
D
E
F
G
J
K
L
M
N
INCHES
MIN
MAX
1.010
1.070
0.240
0.260
0.150
0.180
0.015
0.022
0.050 BSC
0.050
0.070
0.100 BSC
0.008
0.015
0.110
0.140
0.300 BSC
0
15 0.020
0.040
MILLIMETERS
MIN
MAX
25.66
27.17
6.10
6.60
3.81
4.57
0.39
0.55
1.27 BSC
1.27
1.77
2.54 BSC
0.21
0.38
2.80
3.55
7.62 BSC
0
15
0.51
1.01
SO–20
DW SUFFIX
20 PIN PLASTIC SOIC PACKAGE
CASE 751D–05
ISSUE F
A
20
11
X 45 M
h
1
10
20X
B
B
0.25
M
T A
S
B
S
A
L
10X
E
0.25
H
B
M
D
18X
e
A1
SEATING
PLANE
C
T
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6
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCES
PER ASME Y14.5M, 1994.
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE PROTRUSION
SHALL BE 0.13 TOTAL IN EXCESS OF B
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
MILLIMETERS
DIM MIN
MAX
A
2.35
2.65
A1
0.10
0.25
B
0.35
0.49
C
0.23
0.32
D
12.65
12.95
E
7.40
7.60
e
1.27 BSC
H
10.05
10.55
h
0.25
0.75
L
0.50
0.90
0
7
MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
TSSOP–20
DT SUFFIX
20 PIN PLASTIC TSSOP PACKAGE
CASE 948E–02
ISSUE A
20X
0.15 (0.006) T U
2X
K REF
0.10 (0.004)
S
L/2
20
M
T U
S
V
S
K
K1
11
J J1
B
L
–U–
PIN 1
IDENT
ÍÍÍ
ÍÍÍ
ÍÍÍ
SECTION N–N
1
10
0.25 (0.010)
N
0.15 (0.006) T U
S
M
A
–V–
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE MOLD
FLASH, PROTRUSIONS OR GATE BURRS. MOLD
FLASH OR GATE BURRS SHALL NOT EXCEED
0.15 (0.006) PER SIDE.
4. DIMENSION B DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION SHALL
NOT EXCEED 0.25 (0.010) PER SIDE.
5. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE -W-.
N
F
DETAIL E
–W–
C
G
D
H
DETAIL E
0.100 (0.004)
–T– SEATING
DIM
A
B
C
D
F
G
H
J
J1
K
K1
L
M
MILLIMETERS
MIN
MAX
6.40
6.60
4.30
4.50
--1.20
0.05
0.15
0.50
0.75
0.65 BSC
0.27
0.37
0.09
0.20
0.09
0.16
0.19
0.30
0.19
0.25
6.40 BSC
0
8
INCHES
MIN
MAX
0.252
0.260
0.169
0.177
--0.047
0.002
0.006
0.020
0.030
0.026 BSC
0.011
0.015
0.004
0.008
0.004
0.006
0.007
0.012
0.007
0.010
0.252 BSC
0
8
PLANE
EIAJ–20
M SUFFIX
20 PIN PLASTIC EIAJ PACKAGE
CASE 967–01
ISSUE O
20
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS D AND E DO NOT INCLUDE
MOLD FLASH OR PROTRUSIONS AND ARE
MEASURED AT THE PARTING LINE. MOLD
FLASH OR PROTRUSIONS SHALL NOT EXCEED
0.15 (0.006) PER SIDE.
4. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
5. THE LEAD WIDTH DIMENSION (b) DOES NOT
INCLUDE DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)
TOTAL IN EXCESS OF THE LEAD WIDTH
DIMENSION AT MAXIMUM MATERIAL
CONDITION. DAMBAR CANNOT BE LOCATED ON
THE LOWER RADIUS OR THE FOOT. MINIMUM
SPACE BETWEEN PROTRUSIONS AND
ADJACENT LEAD TO BE 0.46 ( 0.018).
LE
11
Q1
E HE
1
M
L
10
DETAIL P
Z
D
VIEW P
e
A
c
A1
b
0.13 (0.005)
M
0.10 (0.004)
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7
DIM
A
A1
b
c
D
E
e
HE
L
LE
M
Q1
Z
MILLIMETERS
MIN
MAX
--2.05
0.05
0.20
0.35
0.50
0.18
0.27
12.35
12.80
5.10
5.45
1.27 BSC
7.40
8.20
0.50
0.85
1.10
1.50
0
10 0.70
0.90
--0.81
INCHES
MIN
MAX
--0.081
0.002
0.008
0.014
0.020
0.007
0.011
0.486
0.504
0.201
0.215
0.050 BSC
0.291
0.323
0.020
0.033
0.043
0.059
0
10 0.028
0.035
--0.032
MC74AC244, MC74ACT244
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
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8
MC74AC244/D
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