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Part: 5962-9322001QRA
Category:
Logic
-> Military/Aerospace->ABT
Description: 54ABT574 - Octal D-type Flip-flop With Tri-state Outputs, Package: Cerdip, Pin Nb=20
Company: National Semiconductor Corporation
Datasheet: Download 5962-9322001QRA datasheet File size : 195 kB
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Datasheet text preview:
54ABT574 Octal D-Type Flip-Flop with TRI-STATE Outputs
July 1998
54ABT574 Octal D-Type Flip-Flop with TRI-STATE ® Outputs
General Description
The 'ABT574 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 'ABT374 except for the pinouts. n TRI-STATE outputs for bus-oriented applications n Output sink capability of 48 mA, source capability of 24 mA n Guaranteed multiple output switching specifications n Output switching specified for both 50 pF and 250 pF loads n Guaranteed simultaneous switching, noise level and dynamic threshold performance n Guaranteed latchup protection n High impedance glitch free bus loading during entire power up and power down cycle n Non-destructive hot insertion capability n Standard Microcircuit Drawing (SMD) 5962-9322001
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 'ABT374
Ordering Code
Military 54ABT574J/883 54ABT574W/883 54ABT574E/883 Package Number J20A W20A E20A 20-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier, Type C Package Description 20-Lead Ceramic Dual-In-Line
Connection Diagrams
Pin Assignment for DIP and Flatpak Pin Assignment for LCC
DS100208-1
DS100208-2
Pin Descriptions
Pin Names D0 D7 CP OE O0 O7 Data Inputs Clock Pulse Input (Active Rising Edge) TRI-STATE Output Enable Input (Active LOW) TRI-STATE Outputs Description
FAST ® and TRI-STATE ® are registered trademarks of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation
DS100208
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Functional Description
The 'ABT574 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. OE H H H L L L L
Inputs CP H or L
N N N N
Internal Outputs D H L H L H L H Q NC L H L H NC NC O Z Z Z L H NC NC Hold Load Load
Function
Data Available Data Available No Change in Data No Change in Data
H or L H or L
Function Table
Inputs OE H CP H or L D L Internal Outputs Q NC O Z Hold Function
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance N = LOW-to-HIGH Transition NC = No Change
Logic Diagram
DS100208-3
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
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2
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 Ambient Temperature under Bias Junction Temperature under Bias Ceramic VCC Pin Potential to Ground Pin Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Any Output in the Disabled or Power-Off State in the HIGH State Current Applied to Output in LOW State (Max) DC Latchup Source Current -65°C to +150°C -55°C to +125°C -55°C to +175°C -0.5V to +7.0V -0.5V to +7.0V -30 mA to +5.0 mA -0.5V to 5.5V -0.5V to VCC twice the rated IOL (mA) -500 mA
Over Voltage Latchup (I/O)
10V
Recommended Operating Conditions
Free Air Ambient Temperature Military Supply Voltage Military Minimum Input Edge Rate Data Input Enable Input Clock Input -55°C to +125°C +4.5V to +5.5V (V/t) 50 mV/ns 20 mV/ns 100 mV/ns
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 VIH VIL VCD VOH VOL IIH IBVI IIL VID IOZH IOZL IOS ICEX IZZ ICCH ICCL ICCZ ICCT Parameter Min Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Input LOW Current Input Leakage Test Output Leakage Current Output Leakage Current Output Short-Circuit Current Output High Leakage Current Bus Drainage Test Power Supply Current Power Supply Current Power Supply Current Additional ICC/Input Outputs Enabled Outputs TRI-STATE Outputs TRI-STATE ICCD Dynamic ICC (Note 4)
Note 3: For 8-bit toggling, ICCD < 0.8 mA/MHz. Note 4: Guaranteed, but not tested.
ABT574 Typ Max 2.0 0.8 -1.2 54ABT 54ABT 54ABT 2.5 2.0 0.55 5 5 7 -5 -5 4.75 50 -50 -100 -275 50 100 50 30 50 2.5 2.5 2.5
Units V V V V V V µA µA µA V µA µA mA µA µA µA mA µA mA mA mA mA/
VCC
Conditions Recognized HIGH Signal
Min Min Min Min Max Max Max 0.0 0 - 5.5V 0 - 5.5V Max Max 0.0 Max Max Max
Recognized LOW Signal IIN = -18 mA IOH = -3 mA IOH = -24 mA IOL = 48 mA VIN = 2.7V (Note 4) VIN = VCC VIN = 7.0V VIN = 0.5V (Note 4) VIN = 0.0V IID = 1.9 µA All Other Pins Grounded VOUT = 2.7V; OE = 2.0V VOUT = 0.5V; OE = 2.0V VOUT = 0.0V VOUT = VCC VOUT = 5.5V; All Other GND All Outputs HIGH All Outputs LOW OE = VCC All Others at VCC or GND VI = VCC - 2.1V
Max
Enable Input VI = VCC - 2.1V Data Input VI = VCC - 2.1V All Others at VCC or GND Outputs Open, OE = GND, One Bit Toggling (Note 3), 50% Duty Cycle
No Load
Max
0.30 MHz
3
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AC Electrical Characteristics
54ABT TA = -55°C to +125°C VCC = 4.5V to 5.5V CL = 50 pF Min fmax tPLH tPHL tPZH tPZL tPHZ tPLZ Output Disable Time Max Clock Frequency Propagation Delay CP to On Output Enable Time 150 1.5 1.5 1.0 1.0 1.0 1.0 7.0 7.4 6.5 7.2 7.2 6.7 ns ns Max MHz ns
Symbol
Parameter
Units
AC Operating Requirements
54ABT TA = -55°C to +125°C VCC = 4.5V to 5.5V CL = 50 pF Min ts(H) ts(L) th(H) th(L) tw(H) tw(L) Setup Time, HIGH or LOW Dn to CP Hold Time, HIGH or LOW Dn to CP Pulse Width, CP, HIGH or LOW 1.5 2.0 2.0 2.0 3.3 3.3 ns ns Max ns
Symbol
Parameter
Units
Capacitance
Symbol CIN COUT (Note 5) Parameter Input Capacitance Output Capacitance Typ 5.0 9.0 Units pF pF Conditions TA = 25°C VCC = 0V VCC = 5.0V
Note 5: COUT is measured at frequency f = 1 MHz, per MIL-STD-883B, Method 3012.
TPHL vs Temperature (TA) CL = 50 pF, 1 Output Switching, Clock to Output
TPLH vs Temperature (TA) CL = 50 pF, 1 Output Switching, Clock to Output
DS100208-12
DS100208-13
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Capacitance
(Continued) TPZL vs Temperature (TA) CL = 50 pF, 1 Output Switching, OE to Output
TPZH vs Temperature (TA) CL = 50 pF, 1 Output Switching, OE to Output
DS100208-14
DS100208-15
TPHZ vs Temperature (TA) CL = 50 pF, 1 Output Switching, OE to Output
TPLZ vs Temperature (TA) CL = 50 pF, 1 Output Switching, OE to Output
DS100208-16
DS100208-17
TSET LOW vs Temperature (TA) CL = 50 pF, 1 Output Switching, Data to Clock
TSET vs Temperature (TA) CL = 50 pF, 1 Output Switching, Data to Clock
DS100208-18
DS100208-19
THOLD HIGH vs Temperature (TA) CL = 50 pF, 1 Output Switching, Data to Clock
THOLD LOW vs Temperature (TA) CL = 50 pF, 1 Output Switching, Data to Clock
DS100208-20
DS100208-21
5
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