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74ALVT162245DL
2.5V/3.3V ALVT 16-bit transceiver with 30ohm termination resistors 3-State
Product specification
Supersedes data of 1996 Mar 05
IC23 Data Handbook
1998 Feb 13
Philips Semiconductors Product specification
74ALVT1622452.5V/3.3V 16-bit transceiver
with 30Ω termination resistors (3-State)
FEATURES 16-bit bidirectional bus interface 3-State buffers 5V I/O compatibile Output capability: +12mA/-12mA TTL input and output switching levels Input and output interface capability to systems at 5V supply Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs• Live insertion/extraction permitted Outputs include series resistance of 30Ω making external
termination resistors unnecessary• Power-up 3-State No bus current loading when output is tied to 5V bus Latch-up protection exceeds 500mA per JEDEC Std 17 ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
DESCRIPTIONThe 74ALVT162245 is a high-performance BiCMOS product
designed for VCC operation at 2.5V or 3.3V with I/O compatibility up
to 5V.
This device is a 16-bit transceiver featuring non-inverting 3-State
bus compatible outputs in both send and receive directions. The
control function implementation minimizes external timing
requirements. The device features an Output Enable (nOE) input for
easy cascading and a Direction (DIR) input for direction control.
The 74ALVT162245 is designed with 30Ω series resistance in both
the High and Low states of the output. This design reduces line
noise in applications such as memory address drivers, clock drivers,
and bus transceivers/transmitters.
QUICK REFERENCE DATA
ORDERING INFORMATION
PIN DESCRIPTION
LOGIC SYMBOL
Philips Semiconductors Product specification
74ALVT1622452.5V/3.3V 16-bit transceiver
with 30Ω termination resistors (3-State)
PIN CONFIGURATION
SCHEMATIC OF EACH OUTPUT
LOGIC SYMBOL (IEEE/IEC)
FUNCTION TABLE =High voltage level =Low voltage level
X = Don’t care =High Impedance “off” state
Philips Semiconductors Product specification
74ALVT1622452.5V/3.3V 16-bit transceiver
with 30Ω termination resistors (3-State)
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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
Philips Semiconductors Product specification
74ALVT1622452.5V/3.3V 16-bit transceiver
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; Tamb = –40°C to +85°C.
NOTE: All typical values are at VCC = 3.3V and Tamb = 25°C.
Philips Semiconductors Product specification
74ALVT1622452.5V/3.3V 16-bit transceiver
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; Tamb = –40°C to +85°C.
NOTE: All typical values are at VCC = 2.5V and Tamb = 25°C.
