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74AHC125D-74AHCT125D-74AHCT125PW
Quad buffer/line driver; 3-state
Philips Semiconductors Product specification
Quad buffer/line driver; 3-state 74AHC125; 74AHCT125
FEATURES ESD protection:
HBM EIA/JESD22-A114-A
exceeds 2000V EIA/JESD22-A115-A
exceeds 200V
CDM EIA/JESD22-C101
exceeds 1000V Balanced propagation delays All inputs have Schmitt-trigger
actions Inputs acceptsvoltageshigher than
VCC For AHC only:
operates with CMOS input levels For AHCT only:
operates with TTL input levels Specified from
−40to +85 and +125 °C.
DESCRIPTIONThe 74AHC/AHCT125 are
high-speed Si-gate CMOS devices
and are pin compatible with low
power Schottky TTL (LSTTL). They
are specified in compliance with
JEDEC standard No. 7A.
The 74AHC/AHCT125 are four
non-inverting buffer/line drivers with
3-state outputs. The 3-state outputs
(nY) are controlled by the output
enable input (nOE). A HIGH atn
causes the outputs to assume a
HIGH-impedance OFF-state.
The ‘125’ is identical to the ‘126’ but
has active LOW enable inputs.
QUICK REFERENCE DATAGND=0 V; Tamb =25 °C; tr =tf≤ 3.0 ns.
Notes CPD is used to determine the dynamic power dissipation (PDin μW). =CPD× VCC2×fi+∑ (CL× VCC2×fo) where:= input frequency in MHz;= output frequency in MHz; (CL× VCC2×fo)= sum of outputs;= output load capacitance in pF;
VCC= supply voltage in Volts. The condition is VI= GNDto VCC.
FUNCTION TABLESee note1.
Note H= HIGH voltage level;= LOW voltage level;= don’t care;= high-impedance OFF-state.
Philips Semiconductors Product specification
Quad buffer/line driver; 3-state 74AHC125; 74AHCT125
ORDERING INFORMATION
PINNING
Philips Semiconductors Product specification
Quad buffer/line driver; 3-state 74AHC125; 74AHCT125
Philips Semiconductors Product specification
Quad buffer/line driver; 3-state 74AHC125; 74AHCT125
RECOMMENDED OPERATING CONDITIONS
LIMITING VALUESIn accordance with the Absolute Maximum Rating System (IEC 134); voltages are referenced to GND (ground=0V).
Notes The input and output voltage ratings may be exceeded if the input and output current ratings are observed. For SO packages: above 70 °C the value of PD derates linearly with 8 mW/K.
For TSSOP packages: above 60 °C the value of PD derates linearly with 5.5 mW/K.
Philips Semiconductors Product specification
Quad buffer/line driver; 3-state 74AHC125; 74AHCT125
DC CHARACTERISTICS
74AHC familyOver recommended operating conditions; voltages are referenced to GND (ground=0V).
Philips Semiconductors Product specification
Quad buffer/line driver; 3-state 74AHC125; 74AHCT125
74AHCT familyOver recommended operating conditions; voltages are referenced to GND (ground=0V).
Philips Semiconductors Product specification
Quad buffer/line driver; 3-state 74AHC125; 74AHCT125
AC CHARACTERISTICS
Type 74AHC125GND=0 V; tr =tf≤ 3.0 ns.
Notes Typical values at VCC= 3.3V. Typical values at VCC= 5.0V.
