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74LVC2244ADB 반도체 회로 부품 판매점

Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state



NXP Semiconductors 로고
NXP Semiconductors
74LVC2244ADB 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
DATA SHEET
74LVC2244A
Octal buffer/line driver with 30
series termination resistors; 5 V
input/output tolerant; 3-state
Product specification
File under Integrated Circuits, IC24
1999 Sep 30


74LVC2244ADB 데이터시트, 핀배열, 회로
Philips Semiconductors
Octal buffer/line driver with 30 series termination
resistors; 5 V input/output tolerant; 3-state
Product specification
74LVC2244A
FEATURES
5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range of 1.2 to 3.6 V
CMOS low power consumption
Direct interface with TTL levels
Integrated 30 termination resistors.
DESCRIPTION
The 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 3.3 or 5 V devices. In
3-state operation, outputs can handle 5 V. 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 tolerant for slower input rise
and fall times. The 74LVC2244A is designed with 30
series termination resistors in both HIGH and LOW output
stages to reduce line noise.
QUICK REFERENCE DATA
Ground = 0 V; Tamb = 25 °C; tr = tf 2.5 ns.
SYMBOL
tPHL/tPLH
CI
CPD
PARAMETER
propagation delay 1An to 1Yn; 2An to 2Yn
input capacitance
power dissipation capacitance per buffer
CONDITIONS
CL = 50 pF; VCC = 3.3 V
VI = GND to VCC; note 1
Note
1. CPD is used to determine the dynamic power dissipation (PD in µW).
PD = CPD × VCC2 × fi + Σ(CL × VCC2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in Volts;
Σ(CL × VCC2 × fo) = sum of the outputs.
TYPICAL
4.0
5.0
25
UNIT
ns
pF
pF
1999 Sep 30
2




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74LVC2244ADB driver

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74LVC2244AD

Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state - NXP Semiconductors



74LVC2244ADB

Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state - NXP Semiconductors