NSC 5962-89513012A, 5962-8951301RA Datasheet

54FCT574 Octal D-Type Flip-Flop with TRI-STATE
®
Outputs
General Description
The ’FCT574 is an octal flip-flop with a buffered common Clock (CP) and a buffered common Output Enable (OE).The information presented to the D inputs is stored in the flip-flops on the LOW-to-HIGH Clock (CP) transition.
The device is functionally identical to the ’FCT374 except for the pinouts.
Features
n Inputs and outputs on opposite sides of package
allowing easy interface with microprocessors
n Useful as input or output port for microprocessors n Functionally identical to ’FCT374 n TRI-STATE outputs for bus-oriented applications n Output sink capability of 32 mA, source capability of
12 mA
n TTL input and output level compatible n CMOS power consumption n Standard Microcircuit Drawing (SMD) 5962-8951301
Ordering Code
Military Package Number Package Description
54FCT574DMQB J20A 20-Lead Ceramic Dual-In-Line 54FCT574FMQB W20A 20-Lead Cerpack 54FCT574LMQB E20A 20-Lead Ceramic Leadless Chip Carrier, Type C
Connection Diagrams
Pin Descriptions
Pin Description
Names
D
0–D7
Data Inputs
CP Clock Pulse Input
(Active Rising Edge)
OE
TRI-STATE Output Enable
Input (Active LOW)
O
0–O7
TRI-STATE Outputs
TRI-STATE®is a registered trademark ofNational Semiconductor Corporation.
Pin Assignment for DIP and Flatpak
DS100966-1
Pin Assignment
for LCC
DS100966-2
October 1999
54FCT574 Octal D-Type Flip-Flop with TRI-STATE Outputs
© 1999 National Semiconductor Corporation DS100966 www.national.com
Functional Description
The ’FCT574 consists of eight edge-triggered flip-flops with individual D-type inputs and TRI-STATE true outputs. The buffered clock and buffered Output Enable are common to all flip-flops. The eight flip-flops will store the state of their indi­vidual D inputs that meet the setup and hold times require­ments on the LOW-to-HIGH Clock (CP) transition. With the Output Enable (OE) LOW, the contents of the eight flip-flops are available at the outputs. When OE is HIGH, the outputs are in a high impedance state. Operation of the OE input does not affect the state of the flip-flops.
Function Table
Inputs Internal Outputs Function
OE
CP D Q O
H H or L L NC Z Hold
Inputs Internal Outputs Function
OE
CP D Q O
H H or L H NC Z Hold H N L L Z Load H N H H Z Load L N L L L Data Available L N H H H Data Available L H or L L NC NC No Change in Data L H or L H NC NC No Change in Data
H=HIGH Voltage Level L=LOW Voltage Level X=Immaterial Z=High Impedance N=LOW-to-HIGH Transition NC=No Change
Logic Diagram
DS100966-3
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
54FCT574
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Storage Temperature −65˚C to +150˚C Ambient Temperature under Bias −55˚C to +125˚C Junction Temperature under Bias
Ceramic −55˚C to +175˚C
V
CC
Pin Potential to Ground Pin −0.5V to +7.0V Input Voltage (Note 2) −0.5V to +7.0V Input Current (Note 2) −30 mA to +5.0 mA Voltage Applied to Any Output in
the Disabled or Power-Off State −0.5V to 5.5V in the HIGH State −0.5V to V
CC
Current Applied to Output
in LOW State (Max) twice the rated I
OL
(mA)
DC Latchup Source Current −500 mA
Recommended Operating Conditions
Free Air Ambient Temperature
Military −55˚C to +125˚C
Supply Voltage
Military +4.5V to +5.5V
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.
DC Electrical Characteristics
Symbol Parameter FCT574 Units V
CC
Conditions
Min Max
V
IH
Input HIGH Voltage 2.0 V Recognized HIGH Signal
V
IL
Input LOW Voltage 0.8 V Recognized LOW Signal
V
CD
Input Clamp Diode Voltage −1.2 V Min I
IN
=
−18 mA
V
OH
Output HIGH Voltage
54FCT 4.3 V Min I
OH
=
−300 µA
54FCT 2.4 V Min I
OH
=
−12 mA
V
OL
Output LOW Voltage
54FCT 0.2 V Min I
OL
=
300 µA
54FCT 0.5 V Min I
OL
= 32mA
I
IH
Input HIGH Current 5 µA Max V
IN
=
2.7V (Note 3)
5V
IN
=
V
CC
I
IL
Input LOW Current −5 µA Max V
IN
=
0.5V (Note 3)
−5 V
IN
=
0.0V
I
OZH
Output Leakage Current 10 µA 0 − 5.5V V
OUT
=
2.7V; OE=2.0V
I
OZL
Output Leakage Current −10 µA 0 − 5.5V V
OUT
=
0.5V; OE=2.0V
I
OS
Output Short-Circuit Current −60 mA Max V
OUT
=
0.0V
I
CCQ
Power Supply Current 1.5 mA Max VIN= 0.2V or VIN= 5.3V, fI=
0MHz
I
CC
Power Supply Current 2.0 mA Max VIN= 3.4V
I
CCT
Additional I
CC
/Input
6.0 mA Max V
I
=
V
CC
− 2.1V or VIN= GND, f
CP
= 10MHz, Outputs open, OE = GND, one bit toggling at fI= 5MHz, 50%duty cycle
5.5 mA Max V
I
=
5.3V or V
CC
= 0.2V, fCP= 10MHz, Outputs open, OE = GND, one bit toggling at fI= 5MHz, 50
%
duty cycle
I
CCD
Dynamic I
CC
No Load 0.40 mA/
MHz
Max Outputs Open, OE = GND, One bit
toggling, 50%duty cycle, VIN=
5.3V or V
IN
= 0.2V
Note 3: Guaranteed, but not tested.
54FCT574
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