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74ALVC244 반도체 회로 부품 판매점

Octal buffer/line driver; 3-state



NXP Semiconductors 로고
NXP Semiconductors
74ALVC244 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
DATA SHEET
74ALVC244
Octal buffer/line driver; 3-state
Product specification
Supersedes data of 2003 Aug 11
2003 Sep 08


74ALVC244 데이터시트, 핀배열, 회로
Philips Semiconductors
Octal buffer/line driver; 3-state
Product specification
74ALVC244
FEATURES
Wide supply voltage range from 1.65 to 3.6 V
3.6 V tolerant inputs/outputs
CMOS low power consumption
Direct interface with TTL levels (2.7 to 3.6 V)
Power-down mode
Latch-up performance exceeds 250 mA
Complies with JEDEC standard:
JESD8-7 (1.65 to 1.95 V)
JESD8-5 (2.3 to 2.7 V)
JESD8B/JESD36 (2.7 to 3.6 V)
ESD protection:
HBM EIA/JESD22-A114-A exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V.
DESCRIPTION
The 74ALVC244 is a high-performance, low-power,
low-voltage, Si-gate CMOS device and superior to most
advanced CMOS compatible TTL families.
The 74ALVC244 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.
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25 °C.
SYMBOL
tPHL/tPLH
CI
CPD
PARAMETER
propagation delay nAn to nYn
input capacitance
power dissipation capacitance per buffer
CONDITIONS
TYPICAL UNIT
VCC = 1.8 V; CL = 30 pF; RL = 1 k
VCC = 2.5 V; CL = 30 pF; RL = 500
VCC = 2.7 V; CL = 50 pF; RL = 500
VCC = 3.3 V; CL = 50 pF; RL = 500
2.7
2.0
2.3
2.2
3.5
ns
ns
ns
ns
pF
VCC = 3.3 V; notes 1 and 2
20 pF
Notes
1. CPD is used to determine the dynamic power dissipation (PD in µW).
PD = CPD × VCC2 × fi × N + 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;
N = total load switching outputs;
Σ(CL × VCC2 × fo) = sum of the outputs.
2. The condition is VI = GND to VCC.
2003 Sep 08
2




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74ALVC244 driver

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