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74LVC162244A Datasheet(数据表) 2 Page - NXP Semiconductors

部件型号  74LVC162244A
说明  16-bit buffer/line driver, 30 OHM series
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 

 
 2 page
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2003 Dec 12
2
Philips Semiconductors
Product specification
16-bit buffer/line driver, 30
Ω series termination
resistors; 5 V tolerant input/output; 3-state
74LVC162244A;
74LVCH162244A
FEATURES
• 5 V tolerant inputs/outputs for interfacing with 5 V logic
• Wide supply voltage range from 1.2 to 3.6 V
• CMOS low power consumption
• MULTIBYTE flow-through standard pin-out architecture
• Low inductance multiple power and ground pins for
minimum noise and ground bounce
• Direct interface with TTL levels
• Inputs accept voltages up to 5.5 V
• Integrated 30 Ω termination resistors
• All data inputs have bushold (74LVCH162244A only)
• Complies with JEDEC standard no. 8-1A
• ESD protection:
HBM EIA/JESD22-A114-A exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V.
• Specified from −40 to +85 °C and −40 to +125 °C.
DESCRIPTION
The 74LVC(H)162244A 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 a mixed 3.3 and 5 V environment.
The 74LVC(H)162244A is a 16-bit non-inverting buffer/line
driver with 3-state outputs. The device can be used as four
4-bit buffers, two 8-bit buffers or one 16-bit buffer. The
3-state outputs are controlled by the output enable inputs
1OE, 2OE, 3OE and 4OE. A HIGH on nOE causes the
outputs to assume a high-impedance OFF-state.
The 74LVCH162244A bushold data inputs eliminates the
need for external termination resistors to hold unused
inputs.
The 74LVC(H)162244A is designed with 30
Ω series
termination resistors in both HIGH and LOW output stages
to reduce line noise.
QUICK REFERENCE DATA
GND = 0 V; Tamb =25 °C; tr =tf ≤ 2.5 ns.
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.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
tPHL/tPLH
propagation delay nAn to nYn
CL = 50 pF; VCC = 3.3 V
3.0
ns
tPZH/tPZL
3-state output enable time nOE to nYn
CL = 50 pF; VCC = 3.3 V
3.5
ns
tPHZ/tPLZ
3-state output disable time nOE to nYn
CL = 50 pF; VCC = 3.3 V
2.8
ns
CI
input capacitance
5.0
pF
CPD
power dissipation capacitance per gate
VCC = 3.3 V; notes 1 and 2
outputs enabled
12
pF
outputs disabled
4.0
pF




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