54FCT244LMQB [ROCHESTER]
Octal Buffer/Line Driver with TRI-STATE Outputs TTL input and output level compatible; 八路缓冲器/带三态输出TTL输入和兼容的输出电平线路驱动器
| 型号： | 54FCT244LMQB |
| 厂家： | 
Rochester Electronics |
| 描述： | Octal Buffer/Line Driver with TRI-STATE Outputs TTL input and output level compatible |
| 文件： | 总6页 (文件大小：529K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
© 2012 Rochester Electronics, LLC. All Rights Reserved 12172012
54FCT244
54FCT244
Octal Buffer/Line Driver with TRI-STATE® Outputs
General Description
Features
n Non-inverting buffers
The ’FCT244 is an octal buffer and line driver with
TRI-STATE outputs designed to be employed as a memory
and address driver, clock driver, or bus-oriented transmitter/
receiver.
n Output sink capability of 48 mA, source capability of
12 mA
n TRI-STATE outputs drive lines or buffer memory address
registers
n TTL input and output level compatible
n CMOS power consumption
n Standard Microcircuit Drawing (SMD) 5962-8763001
Connection Diagrams
Pin Assignment for
DIP and Flatpak
Pin Assignment for LCC
=
=
=
=
H
L
X
Z
HIGH Voltage Level
LOW Voltage Level
Immaterial
Pin
Description
Names
High Impedance
OE1, OE2
Output Enable Input
(Active Low)
Inputs
I0–I7
O0–O7
Outputs
OE1 I0–3 O0–3 OE2
I4–7 O4–7
H
L
L
X
H
L
Z
H
L
H
L
L
X
H
L
Z
H
L
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
* For complete Rochester ordering guide, please refer to page 2 *
Rochester Electronics guarantees performance of its semiconductor products to the original OEM specifications. “Typical” values are for reference purposes
only. Certain minimum or maximum ratings may be based on product characterization, design, simulation, or sample testing. Rochester Electronics reserves
the right to make changes without further notice to any specification herein.
Specification Number 54FCT244-M (N) REV A
Page 1 of 6
54FCT244
Rochester Ordering Guide
Rochester Part Number
54FCT244DM
OCM Part Number
Package
DIP-20
Temperature
-55° to +125°C
-55° to +125°C
-55° to +125°C
-55° to +125°C
-55° to +125°C
-55° to +125°C
54FCT244DM
54FCT244FM
54FCT244FM
54FCT244LM
FP-20
54FCT244LM
LLCC-20
DIP-20
54FCT244DMQB
54FCT244FMQB
54FCT244LMQB
54FCT244DMQB
54FCT244FMQB
54FCT244LMQB
FP-20
LLCC-20
Specification Number 54FCT244-M (N) REV A
Page 2 of 6
54FCT224
Absolute Maximum Ratings (Note 1)
Current Applied to Output
in LOW State (Max)
twice the rated IOL (mA)
−500 mA
DC Latchup Source Current
Storage Temperature
−65˚C to +150˚C
Ambient Temperature under Bias
−55˚C to +125˚C
Recommended Operating
Conditions
Free Air Ambient Temperature
Military
Junction Temperature under Bias
−55˚C to +175˚C
Ceramic
VCC Pin Potential to Ground Pin
−0.5V to +7.0V
−55˚C to +125˚C
Input Voltage (Note 2)
−0.5V to +7.0V
Input Current (Note 2)
−30 mA to +5.0 mA
Supply Voltage
Military
+4.5V to +5.5V
(∆V/∆t)
Voltage Applied to Any Output
Minimum Input Edge Rate
Data Input
in the Disabled or
Power-Off State
50 mV/ns
−0.5V to 5.5V
Enable Input
20 mV/ns
in the HIGH State
−0.5V to VCC
DC Electrical Characteristics for ’FCT Family Devices
Symbol
Parameter
FCT244
Units
VCC
Conditions
Min
Max
VIH
Input HIGH Voltage
2.0
V
V
V
Recognized HIGH Signal
Recognized LOW Signal
VIL
Input LOW Voltage
0.8
=
IIN −18 mA
VCD
VOH
Input Clamp Diode Voltage
−1.2
Min
Min
=
IOH −300 µA
Output HIGH
Voltage
54FCT
4.3
2.4
V
=
IOH −12 mA
54FCT
54FCT
=
IOL 300 µA
VOL
Output LOW
Voltage
0.2
V
Min
=
IOL 48 mA
54FCT
0.55
5
=
VIN VCC
IIH
IIL
Input HIGH Current
Input LOW Current
µA
µA
µA
Max
Max
Max
=
−5
VIN 0.0V
=
±
IOZ
Maximum TRI-STATE Current HIGH or
LOW
10
VIN 0.0V or VIN = VCC
=
VOUT 0.0V
IOS
Output Short-Circuit Current
-60
1.5
mA
mA
Max
Max
<
ICCQ
Quiescent Power Supply Current
VIN 0.2V or VIN 5.3V, VCC
=
5.5V
=
∆ICC
Quiescent Power
Supply Current
2.0
0.4
mA
Max
Max
VI 3.4V, VCC = 5.5V
ICCD
Dynamic ICC
mA/
Outputs Open, VCC = 5.5V, VIN
<
MHz
5.3V or VIN 0.2V, One Bit
=
Toggling, 50% Duty Cycle, OE
=
GND, LE VCC
ICCT
Total Power Supply
Current
6.0
mA
Max
Outputs Open, fCP = 10 MHz,
<
VCC = 5.5V, VIN 5.3V or VIN
0.2V, One Bit Toggling, 50%
=
=
Duty Cycle, OE GND, LE
VCC
Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions
is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
Note 3: All outputs loaded; thresholds on input associated with output under test.
Note 4: Maximum test duration 2.0 ms, one output loaded at a time.
Specification Number 54FCT244-M (N) REV A
Page 3 of 6
54FCT244
AC Electrical Characteristics for ’FCT Family Devices
Symbol
Parameter
54FCT
Units
Fig.
No.
=
TA −55˚C to +125˚C
=
VCC 4.5V–5.5V
=
CL 50 pF
Min
1.5
1.5
1.5
1.5
1.5
1.5
Max
7.5
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay
Data to Outputs
Output Enable
Time
ns
ns
ns
7.5
10.5
10.5
8.0
Output Disable
Time
8.0
Capacitance
Symbol
Parameter
Max
Units
Conditions
=
TA 25˚C
=
VCC 0V
CIN
OUT (Note 5)
Input Capacitance
Output Capacitance
10.0
12.0
pF
pF
=
VCC 5.0V
C
=
C is measured at frequency f 1 MHz, per MIL-STD-883B, Method 3012.
OUT
Note 5:
Specification Number 54FCT244-M (N) REV A
Page 4 of 6
54FCT224
Physical Dimensions inches (millimeters) unless otherwise noted
20-Terminal Ceramic Chip Carrier (L)
20-Lead Ceramic Dual-In-Line (D)
Specification Number 54FCT244-M (N) REV A
Page 5 of 6
54FCT244
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Ceramic Flatpak (F)
Rochester Electronics guarantees performance of its semiconductor products to the original OEM specifications. “Typical” values are for reference purposes
only. Certain minimum or maximum ratings may be based on product characterization, design, simulation, or sample testing. Rochester Electronics reserves
the right to make changes without further notice to any specification herein.
Specification Number 54FCT244-M (N) REV A
Page 6 of 6
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