DM74ALS374SJX

DM74ALS374SJX Datasheet

DM74ALS374 Octal 3-STATE D-Type Edge-Triggered Flip-Flop

Part	Datasheet
DM74ALS374SJX	DM74ALS374SJX (pdf)

Related Parts	Information
DM74ALS374WMX	DM74ALS374WMX
DM74ALS374SJ	DM74ALS374SJ
DM74ALS374N	DM74ALS374N
DM74ALS374WM	DM74ALS374WM

PDF Datasheet Preview
DM74ALS374 Octal 3-STATE D-Type Edge-Triggered Flip-Flop DM74ALS374 Octal 3-STATE D-Type Edge-Triggered Flip-Flop This 8-bit register features 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 provides this register 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. It is particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops of the DM74ALS374 are edge-triggered D-type flip-flops. On the positive transition of the clock, the Q outputs will be set to 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 temperature and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL process s Functionally and pin-for-pin compatible with LS TTL counterpart s Improved AC performance over DM74LS374 at approxi- mately half the power s 3-STATE buffer-type outputs drive bus lines directly Ordering Code: Order Number Package Number Package Description DM74ALS374WM M20B 20-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-013, Wide DM74ALS374SJ M20D 20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide DM74ALS374N N20A 20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Connection Diagram 2000 Fairchild Semiconductor Corporation DS006113 DM74ALS374 Function Table L = LOW State H = HIGH State X = Don’t Care = Positive Edge Transition Z = High Impedance State Q0 = Previous Condition of Q Logic Diagram Output Control Clock Output Q DM74ALS374 Absolute Maximum Ratings Note 1 Supply Voltage Input Voltage Voltage Applied to Disabled Output 5.5V Operating Free Air Temperature Range 0°C to +70°C Storage Temperature Range Note 2 −65°C to +150°C Typical N Package 60.0°C/W M Package 79.0°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. Note 2 This product meets application requirements of 500 temperature cycles from −65°C to +150°C. 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 3 Data Hold Time Note 3 Free Air Operating Temperature Note 3 The arrow indicates the positive edge of the Clock is used for reference. Min 2 Nom 5 Max 24 35 Units V mA MHz ns °C DC Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Parameter

PDF Datasheet Preview

DM74ALS374 Octal 3-STATE D-Type Edge-Triggered Flip-Flop

DM74ALS374 Octal 3-STATE D-Type Edge-Triggered Flip-Flop

This 8-bit register features 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 provides this register 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. It is particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight flip-flops of the DM74ALS374 are edge-triggered D-type flip-flops. On the positive transition of the clock, the Q outputs will be set to 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
temperature and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL
process s Functionally and pin-for-pin compatible with LS TTL
counterpart s Improved AC performance over DM74LS374 at approxi-
mately half the power s 3-STATE buffer-type outputs drive bus lines directly
Ordering Code:

Order Number Package Number

Package Description

DM74ALS374WM

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

DM74ALS374SJ

M20D
20-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide

DM74ALS374N

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

Connection Diagram
2000 Fairchild Semiconductor Corporation DS006113

DM74ALS374

Function Table

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

Logic Diagram

Output Control

Clock

Output Q

DM74ALS374

Absolute Maximum Ratings Note 1

Supply Voltage

Input Voltage

Voltage Applied to Disabled Output
5.5V

Operating Free Air Temperature Range 0°C to +70°C

Storage Temperature Range Note 2 −65°C to +150°C

Typical N Package
60.0°C/W

M Package
79.0°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.

Note 2 This product meets application requirements of 500 temperature cycles from −65°C to +150°C.

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 3

Data Hold Time Note 3

Free Air Operating Temperature

Note 3 The arrow indicates the positive edge of the Clock is used for reference.

Min 2

Nom 5

Max 24 35

Units

V mA MHz ns °C

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

Parameter

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Datasheet ID: DM74ALS374SJX 513679