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74ALVT162827-74ALVT162827DGG-74ALVT162827DL
20-bit buffer/line driver, non-inverting, with 30ohm termination resistors 3-State
Product specification
Supersedes data of 1997 May 01
IC23 Data Handbook
1998 Feb 13
Philips Semiconductors Product specification
74ALVT1628272.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30Ω termination resistors (3-State)
FEATURES Multiple VCC and GND pins minimize switching noise 5V I/O Compatible Live insertion/extraction permitted 3-State output buffers Outputs include series resistance of 30Ω making external
termination resistors unnecessary• Power-up 3-State Output capability: +12mA/–12mA Latch-up protection exceeds 500mA per Jedec Std 17 ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model Bus hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
DESCRIPTIONThe 74ALVT162827 high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive. It is designed for VCC operation at 2.5V or 3.3V with I/O
compatibility to 5V.
The 74ALVT162827 20-bit buffers provide high performance bus
interface buffering for wide data/address paths or buses carrying
parity. They have NOR Output Enables (nOE1, nOE2) for maximum
control flexibility.
The 74ALVT162827 is designed with 30Ω series resistance in both
the pull-up and pull-down output structures. This design reduces line
noise in applications such as memory address drivers, clock drivers
and bus receivers/transmitters.
QUICK REFERENCE DATA
ORDERING INFORMATION
PIN DESCRIPTION
Philips Semiconductors Product specification
74ALVT1628272.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30Ω termination resistors (3-State)
PIN CONFIGURATION
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
FUNCTION TABLE= Don’t care= High impedance “off” state= High voltage level= Low voltage level
SCHEMATIC OF EACH OUTPUT
Philips Semiconductors Product specification
74ALVT1628272.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30Ω termination resistors (3-State)
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS1, 2
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 performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
Philips Semiconductors Product specification
74ALVT1628272.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30Ω termination resistors (3-State)
DC ELECTRICAL CHARACTERISTICS (3.3V 0.3V RANGE)
NOTES: All typical values are at VCC = 3.3V and Tamb = 25°C. This is the increase in supply current for each input at the specified voltage level other than VCC or GND This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 0.3V a
transition time of 100μsec is permitted. This parameter is valid for Tamb = 25°C only. Unused pins at VCC or GND. ICCZ is measured with outputs pulled up to VCC or pulled down to ground. This is the bus hold overdrive current required to force the input to the opposite logic state.
AC CHARACTERISTICS (3.3V 0.3V RANGE)GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω
Philips Semiconductors Product specification
74ALVT1628272.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30Ω termination resistors (3-State)
DC ELECTRICAL CHARACTERISTICS (2.5V 0.2V RANGE)
NOTES: All typical values are at VCC = 2.5V and Tamb = 25°C. This is the increase in supply current for each input at the specified voltage level other than VCC or GND This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 2.5V ± 0.2V a
transition time of 100μsec is permitted. This parameter is valid for Tamb = 25°C only. Unused pins at VCC or GND. ICCZ is measured with outputs pulled up to VCC or pulled down to ground. Not guaranteed.
AC CHARACTERISTICS (2.5V 0.2V RANGE)GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω
