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74ABT244DSN/a7avaiOctal buffer/line driver (3-State)
74ABT244DBN/a3avaiOctal buffer/line driver (3-State)
74ABT244NNXPN/a717avaiOctal buffer/line driver (3-State)


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74ABT244D-74ABT244DB-74ABT244N
Octal buffer/line driver (3-State)
Product specification
Supersedes data of 1995 Sep 06 1998 Jan 16
IC23 Data Handbook
Philips Semiconductors Product specification
74ABT244Octal buffer/line driver (3-State)
FEATURES
Octal bus interface 3-State buffers Output capability: +64mA/–32mA 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 Power-up 3-State Live insertion capacity Inputs are disabled during 3-State mode
DESCRIPTION

The 74ABT244 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT244 device is an octal buffer that is ideal for driving bus
lines. The device features two Output Enables (1OE, 2OE), each
controlling four of the 3-State outputs.
QUICK REFERENCE DATA
ORDERING INFORMATION
PIN CONFIGURATION
PIN DESCRIPTION
Philips Semiconductors Product specification
74ABT244Octal buffer/line driver (3-State)
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
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 voltage ratings may be exceeded if the input and output current ratings are observed.
Philips Semiconductors Product specification
74ABT244Octal buffer/line driver (3-State)
RECOMMENDED OPERATING CONDITIONS
DC ELECTRICAL CHARACTERISTICS
NOTES:
Not more than one output should be tested at a time, and the duration of the test should not exceed one second. This is the increase in supply current for each input at 3.4V. This parameter is valid for any VCC between 0V and 2.1V with a transition time of up to 10msec. For VCC = 2.1V to VCC = 5V  10%, a
transition time of up to 100μsec is permitted.
Philips Semiconductors Product specification
74ABT244Octal buffer/line driver (3-State)
AC CHARACTERISTICS

GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω
AC WAVEFORMS

VM = 1.5V, VIN = GND to 3.0V
Waveform 1. Waveforms Showing the Input (An) to Output (Yn)
Propagation Delays
Waveform 2. Waveforms Showing the 3-State Output Enable
and Disable Times
TEST CIRCUIT AND WAVEFORMS
Philips Semiconductors Product specification
74ABT244Octal buffer/line driver (3-State)
DIP20: plastic dual in-line package; 20 leads (300 mil) SOT146-1
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