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74HC241 ,3-state
74HC241 ,3-state
74HC241 ,3-state
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74LVC1G86SE-7 , SINGLE 2 INPUT EXCLUSIVE OR GATE
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74HC240D -74HC240N-74HCT240D-74HCT240DB-74HCT240N-74HCT240PW
Octal buffer/line driver; 3-state; inverting
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state;
inverting 74HC/HCT240
FEATURES Output capability: bus driver ICC category: MSI
GENERAL DESCRIPTIONThe 74HC/HCT240 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 74HC/HCT240 are octal inverting buffer/line drivers
with 3-state outputs. The 3-state outputs are controlled by
the output enable inputs 1OE and 2OE. A HIGH on nOE
causes the outputs to assume a high impedance
OFF-state. The “240” is identical to the “244” but has
inverting outputs.
QUICK REFERENCE DATAGND= 0 V; Tamb =25 °C; tr =tf= 6 ns
Notes CPD is used to determine the dynamic power dissipation (PD in 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 V For HC the condition is VI= GND to VCC
For HCT the condition is VI= GND to VCC − 1.5 V
ORDERING INFORMATIONSee “74HC/HCT/HCU/HCMOS Logic Package Information”.
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state; inverting 74HC/HCT240
PIN DESCRIPTION
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state; inverting 74HC/HCT240
FUNCTION TABLE
Notes H= HIGH voltage level= LOW voltage level= don’t care= high impedance OFF-state
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state; inverting 74HC/HCT240
DC CHARACTERISTICS FOR 74HCFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
AC CHARACTERISTICS FOR 74HCGND= 0 V; tr =tf= 6 ns; CL= 50 pF
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state; inverting 74HC/HCT240
DC CHARACTERISTICS FOR 74HCTFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
IICC category: MSI
Note to HCT typesThe value of additional quiescent supply current (ΔICC) for a unit load of 1 is given in the family specifications.
To determine ΔICC per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCTGND= 0 V; tr =tf= 6 ns; CL= 50 pF
