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74LVC241AD-74LVC241ADB-74LVC241APW
Octal buffer/line driver with 5-volt tolerant inputs/outputs 3-State
Product specification
Supersedes data of 1997 Jul 29
IC24 Data Handbook
1998 May 20
Philips Semiconductors Product specification
74LVC241AOctal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
FEATURES 5-Volt tolerant inputs/outputs, for interfacing with 5-volt logic. Supply voltage range of 1.2 to 3.6 V In accordance with JEDEC standard no. 8-1A CMOS lower power consumption Direct interface with TTL levels High impedance when VCC = 0 V
DESCRIPTIONThe 74LVC241A is a high-performance, low-power, low-voltage,
Si-gate CMOS device and superior to most advanced CMOS
compatible TTL families.
Inputs can be driven from either 3.3 V or 5 V devices. In 3-State
operation, outputs can handle 5 V. This feature allows the use of
these devices as translators in a mixed 3.3 V/5 V environment.
The 74LVC241A is an octal non-inverting buffer/line driver with 3-State
outputs. The 3-State outputs are controlled by the output enable inputs
1OE and 2OE. Schmitt-trigger action at all inputs makes the circuit
highly tolerant for slower input rise and fall times.
QUICK REFERENCE DATAGND = 0 V; Tamb = 25°C; tr = tf ≤ 2.5 ns
ORDERING INFORMATION
PIN CONFIGURATION
PIN DESCRIPTION
Philips Semiconductors Product specification
74LVC241AOctal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
FUNCTIONAL DIAGRAM
FUNCTION TABLE
NOTES:= HIGH voltage level= LOW voltage level= don’t care= high impedance OFF-state
Philips Semiconductors Product specification
74LVC241AOctal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
RECOMMENDED OPERATING CONDITIONS
ABSOLUTE MAXIMUM RATINGS1In 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
74LVC241AOctal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
DC ELECTRICAL CHARACTERISTICSOver recommended operating conditions. Voltages are referenced to GND (ground = 0V).
NOTE: All typical values are at VCC = 3.3V and Tamb = 25°C.
AC CHARACTERISTICSGND = 0 V; tr = tf � 2.5 ns; CL = 50 pF; RL = 500; Tamb = –40C to +85C
NOTE: These typical values are at VCC = 3.3V and Tamb = 25°C.
Philips Semiconductors Product specification
74LVC241AOctal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
AC WAVEFORMSVM = 1.5 V at VCC ≥ 2.7 V
VM = 0.5 × VCC at VCC < 2.7 V
Vx = VOL + 0.3 V at VCC ≥ 2.7 V
Vx = VOL + 0.1 V × VCC at VCC < 2.7 V
VY = VOH – 0.3 V at VCC ≥ 2.7 V
VY = VOH – 0.1 × VCC at VCC < 2.7 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
Figure 1. Input (1An, 2An) to output (1Yn, 2Yn) propagation
delays.
Figure 2. 3-state enable and disable times for input 1OE.
Figure 3. 3-state enable and disable times for input 2OE.
TEST CIRCUIT
Figure 4. Load circuitry for switching times.
