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74ALVT16244DGG-74ALVT16244DL
2.5V/3.3V 16-bit buffer/driver 3-State
Product specification
Supersedes data of 1998 Feb 13
IC23 Data Handbook
1998 Oct 07
Philips Semiconductors Product specification
74ALVT162442.5V/3.3V 16-bit buffer/driver (3-State)
FEATURES 16-bit bus interface 5V I/O compatibile 3-State buffers Output capability: +64mA/-32mA 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 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 74ALVT16244 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 buffer and line driver featuring non-inverting
3-State bus outputs. The device can be used as four 4-bit buffers,
two 8-bit buffers, or one 16-bit buffer.
QUICK REFERENCE DATA
ORDERING INFORMATION
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
Philips Semiconductors Product specification
74ALVT162442.5V/3.3V 16-bit buffer/driver (3-State)
PIN CONFIGURATION
PIN DESCRIPTION
FUNCTION TABLE = High voltage level = Low voltage level = Don’t care = High Impedance “off” 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.
Philips Semiconductors Product specification
74ALVT162442.5V/3.3V 16-bit buffer/driver (3-State)
RECOMMENDED OPERATING CONDITIONS
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.
Philips Semiconductors Product specification
74ALVT162442.5V/3.3V 16-bit buffer/driver (3-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.
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.
Philips Semiconductors Product specification
74ALVT162442.5V/3.3V 16-bit buffer/driver (3-State)
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.
AC WAVEFORMSVM = 1.5V at VCC � 3.0V; VM = VCC/2 at VCC � 2.7V
VX = VOL + 0.3V at VCC � 3.0V; VX = VOL + 0.15V at VCC � 2.7V
VY = VOH – 0.3V at VCC � 3.0V; VY = VOH – 0.15V at VCC � 2.7V
Waveform 1. Input (nAx) to Output (nYx) Propagation Delays
Waveform 2. 3-State Output Enable and Disable Times
