74HCT244DB ,Octal buffer, line driver; 3-stateINTEGRATED CIRCUITSDATA SHEETFor a complete data sheet, please also download:• The IC06 74HC/HCT/HC ..
74HCT244N ,Octal buffer, line driver; 3-statePin configuration DIP20, SO20, (T)SSOP20 Fig 5.
74HCT244PW ,Octal buffer, line driver; 3-stateGeneral descriptionThe 74HC244; 74HCT244 is an 8-bit buffer/line driver with 3-state outputs. The d ..
74HCT245D ,74HC/HCT245; Octal bus transceiver; 3-stateGeneral descriptionThe 74HC245; 74HCT245 is a high-speed Si-gate CMOS device and is pin compatiblew ..
74HCT245DB ,74HC/HCT245; Octal bus transceiver; 3-stateGeneral descriptionThe 74HC245; 74HCT245 is a high-speed Si-gate CMOS device and is pin compatiblew ..
74HCT245N ,Octal bus transceiver; 3-statefeatures an output enable input (OE) for easy cascading and a send/receive input (DIR)for direction ..
74VHC32M ,Quad 2-Input OR GateFeaturesThe VHC32 is an advanced high speed CMOS 2-Input OR
74HC244D-74HC244DB-74HC244N-74HC244PW-74HCT244BQ-74HCT244D-74HCT244DB
74HC/HCT244; Octal buffer/line driver; 3-state
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state 74HC/HCT244
FEATURES Output capability: bus driver ICC category: MSI
GENERAL DESCRIPTIONThe 74HC/HCT244 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/HCT244 are octal non-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 “244” is identical to the “240”
but has non-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− 1.5V
ORDERING INFORMATIONSee “74HC/HCT/HCU/HCMOS Logic Package Information”.
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state 74HC/HCT244
PIN DESCRIPTION
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state 74HC/HCT244
FUNCTION TABLE
Note H= HIGH voltage level= LOW voltage level= don’t care= high impedance OFF-state
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state 74HC/HCT244
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 =50pF
Philips Semiconductors Product specification
Octal buffer/line driver; 3-state 74HC/HCT244
DC CHARACTERISTICS FOR 74HCTFor the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC 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 =50pF
