74LVC2244A PDF даташит
Спецификация 74LVC2244A изготовлена «NXP Semiconductors» и имеет функцию, называемую «Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state». |
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Детали детали
Номер произв | 74LVC2244A |
Описание | Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state |
Производители | NXP Semiconductors |
логотип |
16 Pages
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INTEGRATED CIRCUITS
DATA SHEET
74LVC2244A
Octal buffer/line driver with 30 Ω
series termination resistors; 5 V
input/output tolerant; 3-state
Product specification
File under Integrated Circuits, IC24
1999 Sep 30
No Preview Available ! |
Philips Semiconductors
Octal buffer/line driver with 30 Ω 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 Ω 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 Ω
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
No Preview Available ! |
Philips Semiconductors
Octal buffer/line driver with 30 Ω series termination
resistors; 5 V input/output tolerant; 3-state
Product specification
74LVC2244A
FUNCTION TABLE
See note 1.
INPUT
nOE
L
L
H
Note
1. H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
Z = high-impedance OFF-state.
nAn
L
H
X
OUTPUT
nYn
L
H
Z
ORDERING INFORMATION
OUTSIDE NORTH
AMERICA
NORTH AMERICA
74LVC2244AD
74LVC2244ADB
74LVC2244APW
74LVC2244AD
74LVC2244ADB
74LVC2244APW DH
TEMPERATURE
RANGE
−40 to +85 °C
PACKAGE
PINS PACKAGE MATERIAL CODE
20 SO
20 SSOP
20 TSSOP
plastic
plastic
plastic
SOT163-1
SOT339-1
SOT360-1
PINNING
PIN
1
2, 4, 6, 8
3, 5, 7, 9
10
11, 13, 15, 17
12, 14, 16, 18
19
20
SYMBOL
1OE
1A0 to 1A3
2Y0 to 2Y3
GND
2A3 to 2A0
1Y3 to 1Y0
2OE
VCC
DESCRIPTION
output enable input (active LOW)
data inputs
bus outputs
ground (0 V)
data inputs
bus outputs
output enable input (active LOW)
DC supply voltage
1999 Sep 30
3
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Номер в каталоге | Описание | Производители |
74LVC2244 | Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state | NXP Semiconductors |
74LVC2244A | Octal buffer/line driver with 30 ohm series termination resistors; 5 V input/output tolerant; 3-state | NXP Semiconductors |
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 |
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