Fairchild MM74C244N Inverting . non-inverting octal buffer and line driver with 3-state output Datasheet

Revised May 2002
MM74C240 • MM74C244
Inverting • Non-Inverting Octal Buffer and
Line Driver with 3-STATE Outputs
General Description
Features
The MM74C240 and MM74C244 octal buffers and line
drivers are monolithic complementary MOS (CMOS) integrated 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.
■ Wide supply voltage range (3V to 15V)
■ High noise immunity (0.45 VCC 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:
Order Number
MM74C240WM
Package Number
Package Description
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
Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Connection Diagrams
MM74C240
MM74C244
(Top View)
(Top View)
© 2002 Fairchild Semiconductor Corporation
DS005905
www.fairchildsemi.com
MM74C240 • MM74C244 Inverting • Non-Inverting Octal Buffer and Line Driver with 3-STATE Outputs
October 1987
MM74C240 • MM74C244
Logic Diagrams
MM74C240
MM74C244
Truth Tables
MM74C240
MM74C244
ODA
IA
OA
ODA
IA
OA
1
X
Z
1
X
Z
1
X
Z
1
X
Z
0
0
1
0
0
0
0
1
0
0
1
1
ODB
IB
OB
ODB
IB
OB
1
X
Z
1
X
Z
1
X
Z
1
X
Z
0
0
1
0
0
0
0
1
0
0
1
1
1 = HIGH
0 = LOW
www.fairchildsemi.com
X = Don’t Care
Z = 3-STATE
2
Voltage at Any Pin
−0.3V to VCC + 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 VCC Range
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.
3V to 15V
Absolute Maximum VCC
18V
Lead Temperature
260°C
(Soldering, 10 seconds)
DC Electrical Characteristics
Min/Max limits apply across temperature range, unless otherwise noted
Symbol
Parameter
Conditions
Min
Typ
Max
Units
CMOS TO CMOS
VIN(1)
VIN(0)
VOUT(1)
VOUT(0)
Logical “1” Input Voltage
Logical “0” Input Voltage
Logical “1” Output Voltage
Logical “0” Output Voltage
VCC = 5V
3.5
VCC = 10V
8.0
V
VCC = 5V
1.5
VCC = 10V
2.0
VCC = 5V, I O = −10 µA
4.5
VCC = 10V, IO = −10 µA
9.0
V
VCC = 5V, I O = 10 µA
0.5
VCC = 10V, IO = 10 µA
1.0
IOZ
3-STATE Output Current
VCC = 10V, OD = VIH
IIN(1)
Logical “1” Input Current
VCC = 15V, VIN = 15V
IIN(0)
Logical “0” Input Current
VCC = 15V, VIN = 0V
ICC
Supply Current
VCC = 15V
0.005
−1.0
V
±10
µA
1.0
µA
−0.005
0.05
V
µA
300
µA
0.8
V
CMOS/LPTTL INTERFACE
VIN(1)
Logical “1” Input Voltage
VCC = 4.75V
VIN(0)
Logical “0” Input Voltage
VCC = 4.75V
VOUT(1)
Logical “1” Output Voltage
VCC = 4.75V, IO = −450 µA
VCC − 0.4
VCC = 4.75V, IO = −2.2 mA
2.4
VOUT(0)
Logical “0” Output Voltage
VCC − 1.5
V
V
V
VCC = 4.75V, IO = 2.2 mA
0.4
V
OUTPUT DRIVE (See Family Characteristics Data Sheet) (Short Circuit Current)
ISOURCE
Output Source Current
VCC = 5V, V OUT = 0V
(P-Channel)
TA = 25°C
VCC = 10V, VOUT = 0V
−14
−30
mA
−36
−70
mA
12
20
mA
48
70
mA
TA = 25°C
ISINK
Output Sink Current
VCC = 5V, V OUT = VCC
(N-Channel)
TA = 25°C
VCC = 10V, VOUT = VCC
TA = 25°C
3
www.fairchildsemi.com
MM74C240 • MM74C244
Absolute Maximum Ratings(Note 1)
MM74C240 • MM74C244
AC Electrical Characteristics
(Note 2)
TA = 25°C, CL = 50 pF, unless otherwise specified
Symbol
Parameter
tPD(1),
Propagation Delay
tPD(0)
(Data In to Out)
MM74C240
MM74C244
t1H, t0H
tH1, tH0
Min
Typ
Max
90
VCC = 5V, CL = 50 pF
60
VCC = 10V, CL = 50 pF
40
70
V CC = 5V, CL = 150 pF
80
110
VCC = 10V, CL = 150 pF
60
90
70
V CC = 5V, CL = 50 pF
45
VCC = 10V, CL = 50 pF
25
50
VCC = 5V, CL = 150 pF
60
90
VCC = 10V, CL = 150 pF
40
70
Propagation Delay Output
RL = 1k, CL = 50 pF
Disable to High Impedance
VCC = 5V
45
80
State (from a Logic Level)
VCC = 10V
35
60
Propagation Delay Output
RL = 1k, CL = 50 pF
Disable to Logic Level
VCC = 5V
50
90
(from High Impedance State)
VCC = 10V
30
60
VCC = 5V, CL = 50 pF
45
80
VCC = 10V, CL = 50 pF
30
60
VCC = 5V, CL = 150 pF
75
140
VCC = 10V, CL = 150 pF
50
100
tT(HL), tT(LH) Transition Time
CPD
Conditions
Power Dissipation
Units
ns
ns
ns
ns
ns
(Note 3)
Capacitance
(Output Enabled per Buffer)
MM74C240
100
MM74C244
100
pF
(Output Disabled per Buffer)
CIN
MM74C240
10
MM74C244
0
Input Capacitance (Note 4)
pF
VIN = 0V, f = 1 MHz, TA = 25°C
10
pF
VIN = 0V, f = 1 MHz, TA = 25°C
10
pF
(Any Input)
CO
Output Capacitance (Note 4)
(Output Disabled)
Note 2: AC Parameters are guaranteed by DC correlated testing.
Note 3: CPD determines the no load AC power consumption of any CMOS device. For complete explanation see Family Characteristics Application Note,
AN-90.
Note 4: Capacitance is guaranteed by periodic testing.
www.fairchildsemi.com
4
MM74C240 • MM74C244
Typical Application
Typical Performance Characteristics
N-Channel Output Drive at 25°C
P-Channel Output Drive at 25°C
MM74C240
Propagation Delay vs. Load Capacitance
MM74C244
Propagation Delay vs. Load Capacitance
5
www.fairchildsemi.com
MM74C240 • MM74C244
AC Test Circuits and Switching Time Waveforms
tpd0, tpd1
t1H and tH1
t0H and tH0
Note: Delays measured with input tr, tf ≤ 20 ns.
CMOS to CMOS
t1H and tH1
Note: VOH is defined as the DC output high voltage when the device is
loaded with a 1 kΩ resistor to ground.
tOH and tH0
Note: VOL is defined as the DC output low voltage when the device is loaded with a 1 kΩ resistor to VCC.
www.fairchildsemi.com
6
MM74C240 • MM74C244
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Package Number M20B
7
www.fairchildsemi.com
MM74C240 • MM74C244 Inverting • Non-Inverting Octal Buffer and Line Driver with 3-STATE Outputs
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Package Number N20A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
2. A critical component in any component of a life support
device or system whose failure to perform can be reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the
user.
www.fairchildsemi.com
www.fairchildsemi.com
8
Similar pages