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74LVC162245A 数据表(PDF) 2 Page - NXP Semiconductors

部件名 74LVC162245A
功能描述  16-bit transceiver with direction pin;
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74LVC162245A 数据表(HTML) 2 Page - NXP Semiconductors

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2003 Dec 08
2
Philips Semiconductors
Product specification
16-bit transceiver with direction pin; 30
Ω series
termination resistors; 5 V tolerant input/output; 3-state
74LVC162245A;
74LVCH162245A
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
• MULTIBYTETM 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
• High-impedance when VCC =0V
• All data inputs have bushold (74LVCH162245A 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)162245A 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 and 5 V environment.
The 74LVC(H)162245A is a 16-bit transceiver featuring
non-inverting 3-state bus compatible outputs in both send
and receive directions.
The 74LVC(H)162245A features two output enable (nOE)
inputs for easy cascading and two send/receive (nDIR)
inputs for direction control. nOE controls the outputs so
that the buses are effectively isolated. This device can be
used as two 8-bit transceivers or one 16-bit transceiver.
The 74LVCH162245A bushold data inputs eliminates the
need for external pull-up resistors to hold unused inputs.
The 74LVC(H)162245A 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.
Note
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 nBn; nBn to nAn
CL = 50 pF; VCC = 3.3 V
3.3
ns
CI
input capacitance
5.0
pF
CI/O
input/output capacitance
10
pF
CPD
power dissipation capacitance
VCC = 3.3 V; notes 1 and 2
28
pF


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