74LVC2244ADB ,Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-stateFEATURES DESCRIPTION• 5 V tolerant inputs/outputs for interfacing with 5 V logic The 74LVC2244A is ..
74LVC2244APW ,Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-stateFEATURES DESCRIPTION• 5 V tolerant inputs/outputs for interfacing with 5 V logic The 74LVC2244A is ..
74LVC2244APW ,Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-stateLogic diagram74LVC2244A All information provided in this document is subject to legal disclaimers. ..
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74LVC2244ADB-74LVC2244APW
Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state
Philips Semiconductors Product specification
Octal buffer/line driver with 30 Ω series termination
resistors; 5 V input/output tolerant; 3-state 74LVC2244A
FEATURES5 V tolerant inputs/outputs for interfacing with 5 V logic Wide supply voltage range of 1.2to 3.6V CMOS low power consumption Direct interface with TTL levels Integrated 30 Ω termination resistors.
DESCRIPTIONThe 74LVC2244A 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 3.3or5 V devices. In
3-state operation, outputs can handle5V. These features
allow the use of these devices as translators in a mixed
3.3/5 V environment.
The 74LVC2244A 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. A
HIGH on nOE causes the outputs to assume a
high-impedance OFF-state. Schmitt-trigger action at all
inputs makes the circuit highly tolerantfor slower input rise
and fall times. The 74LVC2244A is designed with 30Ω
series termination resistorsin both HIGH and LOW output
stages to reduce line noise.
QUICK REFERENCE DATAGround=0 V; Tamb =25 °C; tr =tf≤ 2.5 ns.
Note CPD is used to determine the dynamic power dissipation (PDin μW). =CPD× VCC2×fi+ Σ(CL× VCC2×fo) where: = input frequency in MHz;= output frequency in MHz;= output load capacitance in pF;
VCC= supply voltage in Volts;
Σ(CL× VCC2×fo)= sum of the outputs.
Philips Semiconductors Product specification
Octal buffer/line driver with 30 Ω series termination
resistors; 5 V input/output tolerant; 3-state 74LVC2244A
FUNCTION TABLESee note1.
Note H= HIGH voltage level;= LOW voltage level;= don’t care;= high-impedance OFF-state.
ORDERING INFORMATION
PINNING
Philips Semiconductors Product specification
Octal buffer/line driver with 30 Ω series termination
resistors; 5 V input/output tolerant; 3-state 74LVC2244A
Philips Semiconductors Product specification
Octal buffer/line driver with 30 Ω series termination
resistors; 5 V input/output tolerant; 3-state 74LVC2244A
RECOMMENDED OPERATING CONDITIONS
LIMITING VALUESIn accordance with the Absolute Maximum Rating System (IEC 134). Voltages are referenced to GND (ground=0V).
Notes The input and output voltage ratings may be exceeded if the input and output current ratings are observed. For SO package: above 70 °C the value of Ptot derates linearly with 8 mW/K. For SSOP and TSSOP package: above 60 °C the value of Ptot derates linearly with 5.5 mW/K.
Philips Semiconductors Product specification
Octal buffer/line driver with 30 Ω series termination
resistors; 5 V input/output tolerant; 3-state 74LVC2244A
DC CHARACTERISTICSOver recommended operating conditions; voltages are referenced to GND (ground=0V).
Note All typical values are at VCC= 3.3 V and Tamb =25 °C.
Philips Semiconductors Product specification
Octal buffer/line driver with 30 Ω series termination
resistors; 5 V input/output tolerant; 3-state 74LVC2244A
AC CHARACTERISTICSGround=0 V; tr =tf≤ 2.5 ns.
Note Typical values at VCC= 3.3 V and Tamb =25 °C.
AC WAVEFORMS
Philips Semiconductors Product specification
Octal buffer/line driver with 30 Ω series termination
resistors; 5 V input/output tolerant; 3-state 74LVC2244A
