DM74LS534N

DM74LS534N Datasheet

DM74LS534 Octal D-Type Flip-Flop with 3-STATE Outputs

Part	Datasheet
DM74LS534N	DM74LS534N (pdf)

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DM74LS534 Octal D-Type Flip-Flop with 3-STATE Outputs DM74LS534 Octal D-Type Flip-Flop with 3-STATE Outputs The DM74LS534 is a high speed, low power octal D-type flip-flop featuring separate D-type inputs for each flip-flop and 3-STATE outputs for bus oriented applications. A buffered Clock CP and Output Enable OE is common to all flip-flops. The DM74LS534 is the same as the DM74LS374 except that the outputs are inverted. Ordering Code: Order Number Package Number Package Description DM74LS534N N20A 20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Logic Symbol Connection Diagram VCC = Pin 20 GND = Pin 10 Pin Descriptions Pin Name Data Inputs Clock Pulse Input Active Rising Edge 3-STATE Output Enable Input Active LOW Complementary 3-STATE Outputs Truth Table Inputs Dn H L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial = High Impedance = LOW-to-HIGH Clock CP transistion Outputs 2000 Fairchild Semiconductor Corporation DS009812 DM74LS534 Functional Description The DM74LS534 consists of eight edge-triggered flip-flops with individual D-type inputs and 3-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 tran- sistion. With the Output Enable OE LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Operation of the OE input does not affect the state of the flip-flops. Logic Diagram DM74LS534 Absolute Maximum Ratings Note 1 Supply Voltage Input Voltage Operating Free Air Temperature Range 0°C to +70°C Storage Temperature Range −65°C to +150°C 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 VCC VIH VIL VOH IOL TA tS H tS L tH H tH L tW H tW L Parameter Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Free Air Operating Temperature Setup Time HIGH or LOW Dn to CP Hold Time HIGH or LOW Dn to CP Pulse Width HIGH or LOW Nom 5 0 20 0 15 Electrical Characteristics

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DM74LS534 Octal D-Type Flip-Flop with 3-STATE Outputs

DM74LS534

Octal D-Type Flip-Flop with 3-STATE Outputs

The DM74LS534 is a high speed, low power octal D-type flip-flop featuring separate D-type inputs for each flip-flop and 3-STATE outputs for bus oriented applications. A buffered Clock CP and Output Enable OE is common to all flip-flops. The DM74LS534 is the same as the DM74LS374 except that the outputs are inverted.
Ordering Code:

Order Number Package Number

Package Description

DM74LS534N

N20A
20-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide

Logic Symbol

Connection Diagram

VCC = Pin 20 GND = Pin 10

Pin Descriptions

Pin Name

Data Inputs

Clock Pulse Input Active Rising Edge
3-STATE Output Enable Input Active LOW

Complementary 3-STATE Outputs

Truth Table

Inputs

Dn H L

H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial
= High Impedance = LOW-to-HIGH Clock CP transistion

Outputs
2000 Fairchild Semiconductor Corporation DS009812

DM74LS534

Functional Description

The DM74LS534 consists of eight edge-triggered flip-flops with individual D-type inputs and 3-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 tran-
sistion. With the Output Enable OE LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Operation of the OE input does not affect the state of the flip-flops.

Logic Diagram

DM74LS534

Absolute Maximum Ratings Note 1

Supply Voltage

Input Voltage

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

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

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

VCC VIH VIL VOH IOL TA tS H tS L tH H tH L tW H tW L

Parameter Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Free Air Operating Temperature Setup Time HIGH or LOW Dn to CP Hold Time HIGH or LOW Dn to CP Pulse Width HIGH or LOW

Nom 5
0 20 0 15

Electrical Characteristics

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Datasheet ID: DM74LS534N 513804