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74LVC374ADPHIN/a52000avaiOctal D-type flip-flop with 5-volt tolerant inputs/outputs; positive edge-trigger 3-State
74LVC374ADBPHIN/a1000avaiOctal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger; 3-state
74LVC374APWPHILIPSN/a50000avaiOctal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger; 3-state


74LVC374AD ,Octal D-type flip-flop with 5-volt tolerant inputs/outputs; positive edge-trigger 3-StateFEATURESoperation, outputs can handle 5V. This feature allows the use of• 5-volt tolerant inputs/ou ..
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74LVC374APW ,Octal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger; 3-stateINTEGRATED CIRCUITS74LVC374AOctal D-type flip-flop with 5-volt tolerant inputs/outputs; positive ed ..
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74LVC374AD-74LVC374ADB-74LVC374APW
Octal D-type flip-flop with 5-volt tolerant inputs/outputs; positive edge-trigger 3-State
Product specification 1998 Jul 29
Philips Semiconductors Product specification
74LVC374AOctal D-type flip-flop with 5-volt tolerant
inputs/outputs; positive edge-trigger (3-State)
FEATURES
5-volt tolerant inputs/outputs, for interfacing with 5-volt logic Supply voltage range of 2.7V to 3.6V Complies with JEDEC standard no. 8-1A CMOS low power consumption Direct interface with TTL levels High impedance when VCC = 0V 8-bit positive edge-triggered register Independent register and 3-State buffer operation
DESCRIPTION

The 74LVC374A is a high-performance, low-power, low-voltage,
Si-gate CMOS device, superior to most advanced CMOS
compatible TTL families.
Inputs can be driven from either 3.3V or 5V devices. In 3-State
operation, outputs can handle 5V. This feature allows the use of
these devices as translators in a mixed 3.3V/5V environment.
The 74LVC374A is an octal D-type flip-flop featuring separate
D-type inputs for each flip-flop and 3-State outputs for bus-oriented
applications. A clock (CP) and an output enable (OE) input 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 CP transition.
When OE is LOW, the contents of the eight flip-flops is available at
the outputs. When OE is HIGH, the outputs go to the high
impedance OFF-state. Operation of the OE input does not affect the
state of the flip-flops.
The ’374’ is functionally identical to the ’574’, but the ’574’ has a
different pin arrangement.
QUICK REFERENCE DATA

GND = 0V; Tamb =25°C; tr = tf  2.5ns
NOTE:
CPD is used to determine the dynamic power dissipation (PD in W):
PD = CPD x VCC 2 x fi +  (CL x VCC 2 x fo) where:
fi = input frequency in MHz; CL = output load capacity in pF;
fo = output frequency in MHz; VCC = supply voltage in V;
 (CL x VCC 2 x fo) = sum of outputs. The condition is VI = GND to VCC
ORDERING INFORMATION
Philips Semiconductors Product specification
74LVC374AOctal D-type flip-flop with 5-volt tolerant
inputs/outputs; positive edge-trigger (3-State)
PIN CONFIGURATION
PIN DESCRIPTION
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
FUNCTIONAL DIAGRAM
Philips Semiconductors Product specification
74LVC374AOctal D-type flip-flop with 5-volt tolerant
inputs/outputs; positive edge-trigger (3-State)
LOGIC DIAGRAM
FUNCTION TABLE
= HIGH voltage level = HIGH voltage level one setup time prior to the LOW-to-HIGH CP transition = LOW voltage level = LOW voltage level one setup time prior to the LOW-to-HIGH CP transition = High impedance OFF-state = LOW-to-HIGH clock transition
Philips Semiconductors Product specification
74LVC374AOctal D-type flip-flop with 5-volt tolerant
inputs/outputs; positive edge-trigger (3-State)
RECOMMENDED OPERATING CONDITIONS
ABSOLUTE MAXIMUM RATINGS1

In accordance with the Absolute Maximum Rating System (IEC 134)
Voltages are referenced to GND (ground = 0V)
NOTES:
Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
Philips Semiconductors Product specification
74LVC374AOctal D-type flip-flop with 5-volt tolerant
inputs/outputs; positive edge-trigger (3-State)
DC ELECTRICAL CHARACTERISTICS

Over recommended operating conditions voltages are referenced to GND (ground = 0V)
NOTES:
All typical values are at VCC = 3.3V and Tamb = 25°C. The specified overdrive current at the data input forces the data input to the opposite logic input state.
AC CHARACTERISTICS

GND = 0V; tr = tf � 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.
NOTE:
Unless otherwise stated, all typical values are at VCC = 3.3V and Tamb = 25°C.
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