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MM74C240N

P1-P3P4-P6P7-P8
© 2002 Fairchild Semiconductor Corporation DS005905 www.fairchildsemi.com
October 1987
Revised May 2002
MM74C240 • MM74C244 Inverting • Non-Inverting Octal Buffer and Line Driver with 3-STATE Outputs
MM74C240 • MM74C244
Inverting • Non-Inverting Octal Buffer and
Line Driver with 3-STATE Outputs
General Description
The MM74C240 and MM74C244 octal buffers and line
drivers are monolithic complementary MOS (CMOS) inte-
grated circuits with 3-STATE outputs. These outputs have
been specially designed to drive highly capacitive loads
such as bus-oriented systems. These devices have a fan
out of 6 low power Schottky loads. A high logic level on the
output disable control input G makes the outputs go into
the high impedance state.
Features
■ Wide supply voltage range (3V to 15V)
■ High noise immunity (0.45 V
CC
typ)
■ Low power consumption
■ High capacitive load drive capability
■ 3-STATE outputs
■ Input protection
■ TTL compatibility
■ 20-pin dual-in-line package
■ High speed 25 ns (typ.) @ 10V, 50 pF (MM74C244)
Ordering Code:
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagrams
MM74C240
(Top View)
MM74C244
(Top View)
Order Number Package Number Package Description
MM74C240WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
MM74C240N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
MM74C244WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
MM74C244N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
www.fairchildsemi.com 2
MM74C240 • MM74C244
Logic Diagrams
MM74C240 MM74C244
Truth Tables
MM74C240
1 = HIGH
0 = LOW
MM74C244
X = Don’t Care
Z = 3-STATE
ODA IA OA
1XZ
1XZ
001
010
ODB IB OB
1XZ
1XZ
001
010
ODA IA OA
1XZ
1XZ
000
011
ODB IB OB
1XZ
1XZ
000
011
3 www.fairchildsemi.com
MM74C240 • MM74C244
Absolute Maximum Ratings(Note 1)
Note 1: “Absolute Maximum Ratings” are those values beyond which the
safety of the device cannot be guaranteed. Except for “Operating Range”
they are not meant to imply that the devices should be operated at these
limits. The Electrical Characteristics table provides conditions for actual
device operation.
DC Electrical Characteristics
Min/Max limits apply across temperature range, unless otherwise noted
Voltage at Any Pin −0.3V to V
CC
+ 0.3V
Operating Temperature Range
−55°C to +125°C
Storage Temperature Range
−65°C to +150°C
Power Dissipation
Dual-In-Line 700 mW
Small Outline 500 mW
Operating V
CC
Range 3V to 15V
Absolute Maximum V
CC
18V
Lead Temperature
(Soldering, 10 seconds) 260
°C
Symbol Parameter Conditions Min Typ Max Units
CMOS TO CMOS
V
IN(1)
Logical “1” Input Voltage V
CC
= 5V 3.5
V
V
CC
= 10V 8.0
V
IN(0)
Logical “0” Input Voltage V
CC
= 5V 1.5
V
V
CC
= 10V 2.0
V
OUT(1)
Logical “1” Output Voltage V
CC
= 5V, I
O
= −10 µA4.5
V
V
CC
= 10V, I
O
= −10 µA9.0
V
OUT(0)
Logical “0” Output Voltage V
CC
= 5V, I
O
= 10 µA0.5
V
V
CC
= 10V, I
O
= 10 µA1.0
I
OZ
3-STATE Output Current V
CC
= 10V, OD = V
IH
±10 µA
I
IN(1)
Logical “1” Input Current V
CC
= 15V, V
IN
= 15V 0.005 1.0 µA
I
IN(0)
Logical “0” Input Current V
CC
= 15V, V
IN
= 0V −1.0 −0.005 µA
I
CC
Supply Current V
CC
= 15V 0.05 300 µA
CMOS/LPTTL INTERFACE
V
IN(1)
Logical “1” Input Voltage V
CC
= 4.75V V
CC
− 1.5 V
V
IN(0)
Logical “0” Input Voltage V
CC
= 4.75V 0.8 V
V
OUT(1)
Logical “1” Output Voltage V
CC
= 4.75V, I
O
= −450 µAV
CC
− 0.4 V
V
CC
= 4.75V, I
O
= −2.2 mA 2.4 V
V
OUT(0)
Logical “0” Output Voltage V
CC
= 4.75V, I
O
= 2.2 mA 0.4 V
OUTPUT DRIVE (See Family Characteristics Data Sheet) (Short Circuit Current)
I
SOURCE
Output Source Current V
CC
= 5V, V
OUT
= 0V −14 −30 mA
(P-Channel) T
A
= 25°C
V
CC
= 10V, V
OUT
= 0V −36 −70 mA
T
A
= 25°C
I
SINK
Output Sink Current V
CC
= 5V, V
OUT
= V
CC
12 20 mA
(N-Channel) T
A
= 25°C
V
CC
= 10V, V
OUT
= V
CC
48 70 mA
T
A
= 25°C
P1-P3P4-P6P7-P8

MM74C240N

Mfr. #:
Buy MM74C240N
Manufacturer:
ON Semiconductor / Fairchild
Description:
Buffers & Line Drivers Oct Buf and Line Drv
Lifecycle:
New from this manufacturer.
Delivery:
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