74LVC16240ADGG ,16-bit buffer/line driver with 5 V tolerant inputs/outputs; inverting; 3-statePIN CONFIGURATION• 5 volt tolerant inputs/outputs for interfacing with 5V logic1OE 1 48 2OE• Wide s ..
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74LVC16240ADGG
16-bit buffer/line driver; inverting 3-State
Product specification
Supersedes data of 1995 Dec 26
IC24 Data Handbook
1997 Jul 29
Philips Semiconductors Product specification
74LVC16240A16-bit buffer/line driver; inverting (3-State)
FEATURES 5 volt tolerant inputs/outputs for interfacing with 5V logic Wide supply voltage range of 1.2V to 3.6V Complies with JEDEC standard no. 8-1A 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
DESCRIPTIONThe 74LVC16240A 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 3.3V or 5V
devices. In 3-State operation, outputs can handle 5V. These
features allow the use of these devices in a mixed 3.3V/5V
environment.
The 74LVC16240A is a 16-bit 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.
The 74LVC16240A is identical to the 74LVC16244A but has
inverting outputs.
PIN CONFIGURATION
QUICK REFERENCE DATAGND = 0 V; Tamb = 25 C; tr = tf 2.5 ns
NOTES: CPD is used to determine the dynamic power dissipation (PD in W):
PD = CPD x VCC2 x fi + (CL x VCC2 x fo) where:
fi = input frequency in MHz; CL = output load capacity in pF;
fo = output frequency in MHz; VCC = supply voltage in V;
(CL x VCC2 x fo) = sum of outputs.
ORDERING INFORMATION
Philips Semiconductors Product specification
74LVC16240A16-bit buffer/line driver; inverting (3-State)
PIN DESCRIPTION
LOGIC SYMBOL
FUNCTION TABLEH = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
LOGIC SYMBOL (IEEE/IEC)
Philips Semiconductors Product specification
74LVC16240A16-bit buffer/line driver; inverting (3-State)
RECOMMENDED OPERATING CONDITIONS
ABSOLUTE MAXIMUM RATINGS1In accordance with the Absolute Maximum Rating System (IEC 134) Voltages are referenced to GND (ground = 0V)
NOTES: Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
Philips Semiconductors Product specification
74LVC16240A16-bit buffer/line driver; inverting (3-State)
DC ELECTRICAL CHARACTERISTICSOver recommended operating conditions. Voltages are referenced to GND (ground = 0V)
NOTES: All typical values are at VCC = 3.3V and Tamb = 25°C.
AC CHARACTERISTICSGND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.
NOTE: All typical values are at VCC = 3.3V and Tamb = 25°C.
Philips Semiconductors Product specification
74LVC16240A16-bit buffer/line driver; inverting (3-State)
AC WAVEFORMSVM = 1.5V at VCC � 2.7V; VM = 0.5 VCC at VCC � 2.7V.
VOL and VOH are the typical output voltage drop that occur with the
output load.
VX = VOL + 0.3V at VCC � 2.7V; VX = VOL + 0.1 VCC at VCC �2.7V
VY = VOH –0.3V at VCC �2.7V; VY = VOH – 0.1 VCC at VCC �2.7V
Waveform 1. Input (An) to output (Yn) propagation delay times
Waveform 2. 3-State enable and disable times
TEST CIRCUIT
Waveform 3. Load circuitry for switching times
