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N74F243NPHIN/a309avaiQuad transceiver, inverting 3-State


N74F243N ,Quad transceiver, inverting 3-StatePIN CONFIGURATIONTYPICAL TYPICALTYPE PROPAGATION SUPPLY CURRENTOE 1 14VA CCDELAY (TOTAL)NC 2 13 OEB ..
N74F244BD ,Octal buffers 3-StateINTEGRATED CIRCUITS74F244/74F244BOctal buffers (3-State)Product specification 1994 Dec 05IC15 Data ..
N74F244D ,Octal buffers (3-State)PIN CONFIGURATION LOGIC SYMBOL1 20OEa VCC2 4 6 8 17 15 13 112 19Ia0 OEb3 18Yb0 Ya0Ia0 Ia1 Ia2 Ia3 I ..
N74F244DB ,Octal buffers (3-State)PIN CONFIGURATION LOGIC SYMBOL1 20OEa VCC2 4 6 8 17 15 13 112 19Ia0 OEb3 18Yb0 Ya0Ia0 Ia1 Ia2 Ia3 I ..
N74F244DB ,Octal buffers (3-State)features two output• 15mA source currentenables, OEa and OEb, each controlling four of the 3-State ..
N74F244N ,Octal buffers (3-State)features two output• 15mA source currentenables, OEa and OEb, each controlling four of the 3-State ..
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N74F243N
Quad transceiver, inverting 3-State
Product specification
IC15 Data Handbook
1990 Aug 31
Philips Semiconductors Product specification
74F242/74F243Transceivers

74F242 Quad Transceiver, Inverting (3-State)
74F243 Quad Transceiver (3-State)
PIN CONFIGURATION
ORDERING INFORMATION
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
NOTE: One (1.0) FAST unit load is defined as: 20μA in the High state and 0.6mA in the Low state.
LOGIC SYMBOLS
Philips Semiconductors Product specification
74F242/74F243Transceivers
LOGIC SYMBOLS (IEEE/IEC)
LOGIC DIAGRAMS
FUNCTION TABLE, 74F242

H = High voltage level
L = Low voltage level
Z = High impedance “off” state
FUNCTION TABLE, 74F243
Philips Semiconductors Product specification
74F242/74F243Transceivers
ABSOLUTE MAXIMUM RATINGS

(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
RECOMMENDED OPERATING CONDITIONS
Philips Semiconductors Product specification
74F242/74F243Transceivers
DC ELECTRICAL CHARACTERISTICS

(Over recommended operating free-air temperature range unless otherwise noted.)
NOTES:
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. All typical values are at VCC = 5V, Tamb = 25°C. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, IOS tests should be performed last.
Philips Semiconductors Product specification
74F242/74F243Transceivers
AC ELECTRICAL CHARACTERISTICS
AC WAVEFORMS

For all waveforms, VM = 1.5V.
Waveform 1. For Inverting Outputs
Waveform 2. For Non-Inverting Outputs
Waveform 3. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
Waveform 4. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
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