DM74ALS576AWM

DM74ALS576AWM Datasheet

DM74ALS576A Octal D-Type Edge-Triggered Flip-Flop with 3-STATE Outputs

Part	Datasheet
DM74ALS576AWM	DM74ALS576AWM (pdf)

Related Parts	Information
DM74ALS576SJX	DM74ALS576SJX
DM74ALS576AN	DM74ALS576AN
DM74ALS576AWMX	DM74ALS576AWMX

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DM74ALS576A Octal D-Type Edge-Triggered Flip-Flop with 3-STATE Outputs DM74ALS576A Octal D-Type Edge-Triggered Flip-Flop with 3-STATE Outputs These 8-bit registers feature totem-pole 3-STATE outputs designed specifically for driving highly-capacitive or relatively low-impedance loads. The high-impedance state and increased high-logic-level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components. They are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops of the DM74ALS576A are edge-triggered inverting D-type flip-flops. On the positive transition of the clock, the Q outputs will be set to the complement of the logic states that were set up at the D inputs. A buffered output control input can be used to place the eight outputs in either a normal logic state HIGH or LOW logic levels or a high-impedance state. In the high-impedance state the outputs neither load nor drive the bus lines significantly. The output control does not affect the internal operation of the flip-flops. That is, the old data can be retained or new data can be entered even while the outputs are OFF. s Switching specifications at 50 pF s Switching specifications guaranteed over full tempera- ture and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL process s 3-STATE buffer-type outputs drive bus lines directly Ordering Code: Order Number Package Number Package Description DM74ALS576AWM M20B 20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide DM74ALS576AN N20A 20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram 2000 Fairchild Semiconductor Corporation DS006228 DM74ALS576A Function Table Output Control Clock L = LOW State H = HIGH State X = Don’t Care = Positive Edge Transition Z = High Impedance State Q0 = Previous Condition of Q Output Logic Diagram DM74ALS576A Absolute Maximum Ratings Note 1 Supply Voltage Input Voltage Applied to Disabled Output Operating Free Air Temperature Range Storage Temperature Range Typical N Package M Package 7V 5.5V 0°C to +70°C −65°C to +150°C 56.0°C/W 75.0°C/W Note 1 The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions Parameter VCC VIH VIL IOH IOL fCLOCK tW Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Clock Frequency Width of Clock Pulse HIGH LOW Data Setup Time Note 2 Data Hold Time Note 2 Free Air Operating Temperature Note 2 The arrow indicates the positive edge of the Clock is used for reference. Nom 5 Max 24 30 Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Parameter Conditions VIK VOH IIH IIL IO IOZH IOZL Input Clamp Voltage HIGH Level Output Voltage LOW Level Output Voltage Input Current Maximum Input Voltage HIGH Level Input Current LOW Level Input Current Output Drive Current OFF-State Output Current HIGH Level Voltage Applied OFF-State Output Current LOW Level Voltage Applied Supply Current VCC = 4.5V, II = −18 mA VCC = 4.5V VIL = VIL Max VCC = 4.5V to 5.5V VCC = 4.5V VIH = 2V VCC = 5.5V, VIH = 7V VCC = 5.5V, VIH = 2.7V VCC = 5.5V, VIL = 0.4V VCC = 5.5V, VO = 2.25V VCC = 5.5V, VIH = 2V VO = 2.7V VCC = 5.5V, VIH = 2V VO = 0.4V VCC = 5.5V Outputs OPEN IOH = Max IOH = −400 µA IOL = 24 mA

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DM74ALS576A Octal D-Type Edge-Triggered Flip-Flop with 3-STATE Outputs

DM74ALS576A Octal D-Type Edge-Triggered Flip-Flop with 3-STATE Outputs

These 8-bit registers feature totem-pole 3-STATE outputs designed specifically for driving highly-capacitive or relatively low-impedance loads. The high-impedance state and increased high-logic-level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components. They are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight flip-flops of the DM74ALS576A are edge-triggered inverting D-type flip-flops. On the positive transition of the clock, the Q outputs will be set to the complement of the logic states that were set up at the D inputs.

A buffered output control input can be used to place the eight outputs in either a normal logic state HIGH or LOW logic levels or a high-impedance state. In the high-impedance state the outputs neither load nor drive the bus lines significantly.

The output control does not affect the internal operation of the flip-flops. That is, the old data can be retained or new data can be entered even while the outputs are OFF.
s Switching specifications at 50 pF s Switching specifications guaranteed over full tempera-
ture and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL
process s 3-STATE buffer-type outputs drive bus lines directly
Ordering Code:

Order Number Package Number

Package Description

DM74ALS576AWM

M20B
20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide

DM74ALS576AN

N20A
20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram
2000 Fairchild Semiconductor Corporation DS006228

DM74ALS576A

Function Table

Output Control

Clock

L = LOW State H = HIGH State X = Don’t Care = Positive Edge Transition Z = High Impedance State Q0 = Previous Condition of Q

Output

Logic Diagram

DM74ALS576A

Absolute Maximum Ratings Note 1

Supply Voltage Input Voltage Applied to Disabled Output Operating Free Air Temperature Range Storage Temperature Range Typical

N Package M Package
7V 5.5V 0°C to +70°C −65°C to +150°C
56.0°C/W 75.0°C/W

Note 1 The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation.

Recommended Operating Conditions

Parameter

VCC VIH VIL IOH IOL fCLOCK tW

Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Clock Frequency Width of Clock Pulse

HIGH LOW

Data Setup Time Note 2

Data Hold Time Note 2

Free Air Operating Temperature

Note 2 The arrow indicates the positive edge of the Clock is used for reference.

Nom 5

Max 24 30

Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.

Parameter

Conditions

VIK VOH

IIH IIL IO IOZH

IOZL

Input Clamp Voltage HIGH Level Output Voltage

LOW Level Output Voltage Input Current Maximum Input Voltage HIGH Level Input Current LOW Level Input Current Output Drive Current OFF-State Output Current HIGH Level Voltage Applied OFF-State Output Current LOW Level Voltage Applied Supply Current

VCC = 4.5V, II = −18 mA VCC = 4.5V VIL = VIL Max VCC = 4.5V to 5.5V VCC = 4.5V VIH = 2V

VCC = 5.5V, VIH = 7V

VCC = 5.5V, VIH = 2.7V VCC = 5.5V, VIL = 0.4V VCC = 5.5V, VO = 2.25V VCC = 5.5V, VIH = 2V VO = 2.7V VCC = 5.5V, VIH = 2V VO = 0.4V VCC = 5.5V Outputs OPEN

IOH = Max IOH = −400 µA IOL = 24 mA

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Datasheet ID: DM74ALS576AWM 513694