The HC240 and HCT240 are inverting three-state buffers having two active-low output enables. The CD74HC241, HCT241, HC244 and HCT244 are non-inverting three-state buffers that differ only in that the 241 has one active-high and one active-low output enable, and the 244 has two active-low output enables. All three types have identical pinouts.
Data sheet acquired from Harris Semiconductor
|Part number||Order||Technology Family||VCC (Min) (V)||VCC (Max) (V)||Channels (#)||IOL (Max) (mA)||IOH (Max) (mA)||ICC (uA)||Input type||Output type||Features||Data rate (Mbps)||Rating||Package Group|
High speed (tpd 10-50ns)
Input clamp diode
PDIP | 20
SOIC | 20
|CD54HCT244||Samples not available||HCT||4.5||5.5||8||6||-6||80||Standard CMOS||Push-Pull||Standard speed (tpd > 50ns)||50||Military||CDIP | 20|